There is already a reviewed v3 (not to be confused with RFC v3), which can
be considered for merging:
https://lore.kernel.org/linux-pm/[email protected]/
Let me cite Bartlomiej Zolnierkiewicz:
"I couldn't find the problems with the patch itself (no new issues
being introduced, all changes seem to be improvements over the current
situation).
Also the patch is not small but it also not that big and it mostly
removes the code:
17 files changed, 105 insertions(+), 244 deletions(-)"
There have been raised some concerns about bisectability and about
introducing "initial_mode" member in struct thermal_zone_params.
This v4 series addresses those concerns: it takes a more gradual
approach and uses explicit tzd state initialization, hence there are more
insertions than in v3, and the net effect is -63 lines versus -139 lines
in v3.
Patch 2/11 converts the 3 drivers which don't store their mode in
enum thermal_device_mode to do so. Once that is cleared,
struct thermal_zone_device gains its "mode" member (patch 3/11) and then
all interested drivers change the location where they store their
state: instead of storing it in some variable in a driver, they store it
in struct thermal_zone_device (patch 4/11). Patch 4/11 does not introduce
other changes. Then get_mode() driver method becomes redundant, and so
it is removed (patch 5/11). This is the first part of the groundwork.
The second part of the groundwork is to add (patch 6/11) and use (patch
7/11) helpers for accessing tzd's state from drivers. From this moment
on the drivers don't access tzd->mode directly. Please note that after
patch 4/11 all thermal zone devices have their mode implicitly initialized
to DISABLED, as a result of kzalloc and THERMAL_DEVICE_DISABLED == 0.
This is not a problem from the point of view of polling them, because
their state is not considered when deciding to poll or to cease polling.
In preparation for considering tzd's state when deciding to poll or to
cease polling it ensured (patch 8/11 and some in patch 7/11) that all the
drivers are explicitly initialized with regard to their state.
With all that groundwork in place now it makes sense to modify thermal_core
so that it stops polling DISABLED devices (patch 9/11), which is the
ultimate purpose of this work.
While at it, some set_mode() implementations only change the polling
variables to make the core stop polling their drivers, but that is now
unnecessary and those set_mode() implementations are removed. In other
implementations polling variables modifications are removed. Some other
set_mode() implementations are simplified or removed (patch 10/11).
set_mode() is now only called when tzd's mode is about to change. Actual
setting is performed in thermal_core, in thermal_zone_device_set_mode().
The meaning of set_mode() callback is actually to notify the driver about
the mode being changed and giving the driver a chance to oppose such
a change. To better reflect the purpose of the method it is renamed to
change_mode() (patch 11/11).
Andrzej Pietrasiewicz (11):
acpi: thermal: Fix error handling in the register function
thermal: Store thermal mode in a dedicated enum
thermal: Add current mode to thermal zone device
thermal: Store device mode in struct thermal_zone_device
thermal: remove get_mode() operation of drivers
thermal: Add mode helpers
thermal: Use mode helpers in drivers
thermal: Explicitly enable non-changing thermal zone devices
thermal: core: Stop polling DISABLED thermal devices
thermal: Simplify or eliminate unnecessary set_mode() methods
thermal: Rename set_mode() to change_mode()
drivers/acpi/thermal.c | 75 +++++----------
.../ethernet/chelsio/cxgb4/cxgb4_thermal.c | 8 ++
.../ethernet/mellanox/mlxsw/core_thermal.c | 91 ++++---------------
drivers/net/wireless/intel/iwlwifi/mvm/tt.c | 9 +-
drivers/platform/x86/acerhdf.c | 33 +++----
drivers/platform/x86/intel_mid_thermal.c | 6 ++
drivers/power/supply/power_supply_core.c | 9 +-
drivers/thermal/armada_thermal.c | 6 ++
drivers/thermal/da9062-thermal.c | 16 +---
drivers/thermal/dove_thermal.c | 6 ++
drivers/thermal/hisi_thermal.c | 6 +-
drivers/thermal/imx_thermal.c | 57 ++++--------
.../intel/int340x_thermal/int3400_thermal.c | 43 +++------
.../int340x_thermal/int340x_thermal_zone.c | 5 +
drivers/thermal/intel/intel_pch_thermal.c | 5 +
.../thermal/intel/intel_quark_dts_thermal.c | 34 ++-----
drivers/thermal/intel/intel_soc_dts_iosf.c | 3 +
drivers/thermal/intel/x86_pkg_temp_thermal.c | 6 ++
drivers/thermal/kirkwood_thermal.c | 7 ++
drivers/thermal/rcar_thermal.c | 9 +-
drivers/thermal/rockchip_thermal.c | 6 +-
drivers/thermal/spear_thermal.c | 7 ++
drivers/thermal/sprd_thermal.c | 6 +-
drivers/thermal/st/st_thermal.c | 5 +
drivers/thermal/thermal_core.c | 76 ++++++++++++++--
drivers/thermal/thermal_of.c | 51 ++---------
drivers/thermal/thermal_sysfs.c | 37 +-------
include/linux/thermal.h | 19 +++-
28 files changed, 289 insertions(+), 352 deletions(-)
base-commit: 351f4911a477ae01239c42f771f621d85b06ea10
--
2.17.1
Prepare for changing the place where the mode is stored: now it is in
drivers, which might or might not implement get_mode()/set_mode() methods.
A lot of cleanup can be done thanks to storing it in struct tzd. The
get_mode() methods will become redundant.
Signed-off-by: Andrzej Pietrasiewicz <[email protected]>
---
include/linux/thermal.h | 2 ++
1 file changed, 2 insertions(+)
diff --git a/include/linux/thermal.h b/include/linux/thermal.h
index 216185bb3014..5f91d7f04512 100644
--- a/include/linux/thermal.h
+++ b/include/linux/thermal.h
@@ -128,6 +128,7 @@ struct thermal_cooling_device {
* @trip_temp_attrs: attributes for trip points for sysfs: trip temperature
* @trip_type_attrs: attributes for trip points for sysfs: trip type
* @trip_hyst_attrs: attributes for trip points for sysfs: trip hysteresis
+ * @mode: current mode of this thermal zone
* @devdata: private pointer for device private data
* @trips: number of trip points the thermal zone supports
* @trips_disabled; bitmap for disabled trips
@@ -170,6 +171,7 @@ struct thermal_zone_device {
struct thermal_attr *trip_temp_attrs;
struct thermal_attr *trip_type_attrs;
struct thermal_attr *trip_hyst_attrs;
+ enum thermal_device_mode mode;
void *devdata;
int trips;
unsigned long trips_disabled; /* bitmap for disabled trips */
--
2.17.1
Prepare for eliminating get_mode().
Signed-off-by: Andrzej Pietrasiewicz <[email protected]>
---
drivers/acpi/thermal.c | 18 ++++++----------
.../ethernet/mellanox/mlxsw/core_thermal.c | 21 +++++++------------
drivers/platform/x86/acerhdf.c | 15 ++++++-------
drivers/thermal/da9062-thermal.c | 6 ++----
drivers/thermal/imx_thermal.c | 17 +++++++--------
.../intel/int340x_thermal/int3400_thermal.c | 12 +++--------
.../thermal/intel/intel_quark_dts_thermal.c | 16 +++++++-------
drivers/thermal/thermal_of.c | 10 +++------
8 files changed, 44 insertions(+), 71 deletions(-)
diff --git a/drivers/acpi/thermal.c b/drivers/acpi/thermal.c
index fb46070c66d8..4ba273f49d87 100644
--- a/drivers/acpi/thermal.c
+++ b/drivers/acpi/thermal.c
@@ -172,7 +172,6 @@ struct acpi_thermal {
struct acpi_thermal_trips trips;
struct acpi_handle_list devices;
struct thermal_zone_device *thermal_zone;
- enum thermal_device_mode mode;
int kelvin_offset; /* in millidegrees */
struct work_struct thermal_check_work;
};
@@ -500,7 +499,7 @@ static void acpi_thermal_check(void *data)
{
struct acpi_thermal *tz = data;
- if (tz->mode != THERMAL_DEVICE_ENABLED)
+ if (tz->thermal_zone->mode != THERMAL_DEVICE_ENABLED)
return;
thermal_zone_device_update(tz->thermal_zone,
@@ -529,12 +528,7 @@ static int thermal_get_temp(struct thermal_zone_device *thermal, int *temp)
static int thermal_get_mode(struct thermal_zone_device *thermal,
enum thermal_device_mode *mode)
{
- struct acpi_thermal *tz = thermal->devdata;
-
- if (!tz)
- return -EINVAL;
-
- *mode = tz->mode;
+ *mode = thermal->mode;
return 0;
}
@@ -556,11 +550,11 @@ static int thermal_set_mode(struct thermal_zone_device *thermal,
if (mode == THERMAL_DEVICE_DISABLED)
pr_warn("thermal zone will be disabled\n");
- if (mode != tz->mode) {
- tz->mode = mode;
+ if (mode != tz->thermal_zone->mode) {
+ tz->thermal_zone->mode = mode;
ACPI_DEBUG_PRINT((ACPI_DB_INFO,
"%s kernel ACPI thermal control\n",
- tz->mode == THERMAL_DEVICE_ENABLED ?
+ tz->thermal_zone->mode == THERMAL_DEVICE_ENABLED ?
"Enable" : "Disable"));
acpi_thermal_check(tz);
}
@@ -912,7 +906,7 @@ static int acpi_thermal_register_thermal_zone(struct acpi_thermal *tz)
goto remove_dev_link;
}
- tz->mode = THERMAL_DEVICE_ENABLED;
+ tz->thermal_zone->mode = THERMAL_DEVICE_ENABLED;
dev_info(&tz->device->dev, "registered as thermal_zone%d\n",
tz->thermal_zone->id);
diff --git a/drivers/net/ethernet/mellanox/mlxsw/core_thermal.c b/drivers/net/ethernet/mellanox/mlxsw/core_thermal.c
index ce0a6837daa3..aa082e8a0b13 100644
--- a/drivers/net/ethernet/mellanox/mlxsw/core_thermal.c
+++ b/drivers/net/ethernet/mellanox/mlxsw/core_thermal.c
@@ -98,7 +98,6 @@ struct mlxsw_thermal_module {
struct mlxsw_thermal *parent;
struct thermal_zone_device *tzdev;
struct mlxsw_thermal_trip trips[MLXSW_THERMAL_NUM_TRIPS];
- enum thermal_device_mode mode;
int module; /* Module or gearbox number */
};
@@ -110,7 +109,6 @@ struct mlxsw_thermal {
struct thermal_cooling_device *cdevs[MLXSW_MFCR_PWMS_MAX];
u8 cooling_levels[MLXSW_THERMAL_MAX_STATE + 1];
struct mlxsw_thermal_trip trips[MLXSW_THERMAL_NUM_TRIPS];
- enum thermal_device_mode mode;
struct mlxsw_thermal_module *tz_module_arr;
u8 tz_module_num;
struct mlxsw_thermal_module *tz_gearbox_arr;
@@ -280,9 +278,7 @@ static int mlxsw_thermal_unbind(struct thermal_zone_device *tzdev,
static int mlxsw_thermal_get_mode(struct thermal_zone_device *tzdev,
enum thermal_device_mode *mode)
{
- struct mlxsw_thermal *thermal = tzdev->devdata;
-
- *mode = thermal->mode;
+ *mode = tzdev->mode;
return 0;
}
@@ -299,9 +295,9 @@ static int mlxsw_thermal_set_mode(struct thermal_zone_device *tzdev,
else
tzdev->polling_delay = 0;
+ tzdev->mode = mode;
mutex_unlock(&tzdev->lock);
- thermal->mode = mode;
thermal_zone_device_update(tzdev, THERMAL_EVENT_UNSPECIFIED);
return 0;
@@ -469,9 +465,7 @@ static int mlxsw_thermal_module_unbind(struct thermal_zone_device *tzdev,
static int mlxsw_thermal_module_mode_get(struct thermal_zone_device *tzdev,
enum thermal_device_mode *mode)
{
- struct mlxsw_thermal_module *tz = tzdev->devdata;
-
- *mode = tz->mode;
+ *mode = tzdev->mode;
return 0;
}
@@ -489,9 +483,10 @@ static int mlxsw_thermal_module_mode_set(struct thermal_zone_device *tzdev,
else
tzdev->polling_delay = 0;
+ tzdev->mode = mode;
+
mutex_unlock(&tzdev->lock);
- tz->mode = mode;
thermal_zone_device_update(tzdev, THERMAL_EVENT_UNSPECIFIED);
return 0;
@@ -765,7 +760,7 @@ mlxsw_thermal_module_tz_init(struct mlxsw_thermal_module *module_tz)
return err;
}
- module_tz->mode = THERMAL_DEVICE_ENABLED;
+ module_tz->tzdev->mode = THERMAL_DEVICE_ENABLED;
return 0;
}
@@ -881,7 +876,7 @@ mlxsw_thermal_gearbox_tz_init(struct mlxsw_thermal_module *gearbox_tz)
if (IS_ERR(gearbox_tz->tzdev))
return PTR_ERR(gearbox_tz->tzdev);
- gearbox_tz->mode = THERMAL_DEVICE_ENABLED;
+ gearbox_tz->tzdev->mode = THERMAL_DEVICE_ENABLED;
return 0;
}
@@ -1050,7 +1045,7 @@ int mlxsw_thermal_init(struct mlxsw_core *core,
if (err)
goto err_unreg_modules_tzdev;
- thermal->mode = THERMAL_DEVICE_ENABLED;
+ thermal->tzdev->mode = THERMAL_DEVICE_ENABLED;
*p_thermal = thermal;
return 0;
diff --git a/drivers/platform/x86/acerhdf.c b/drivers/platform/x86/acerhdf.c
index 830a8b060e74..97b288485837 100644
--- a/drivers/platform/x86/acerhdf.c
+++ b/drivers/platform/x86/acerhdf.c
@@ -68,7 +68,6 @@ static int kernelmode = 1;
#else
static int kernelmode;
#endif
-static enum thermal_device_mode thermal_mode;
static unsigned int interval = 10;
static unsigned int fanon = 60000;
@@ -398,15 +397,16 @@ static inline void acerhdf_revert_to_bios_mode(void)
{
acerhdf_change_fanstate(ACERHDF_FAN_AUTO);
kernelmode = 0;
- thermal_mode = THERMAL_DEVICE_DISABLED;
- if (thz_dev)
+ if (thz_dev) {
+ thz_dev->mode = THERMAL_DEVICE_DISABLED;
thz_dev->polling_delay = 0;
+ }
pr_notice("kernel mode fan control OFF\n");
}
static inline void acerhdf_enable_kernelmode(void)
{
kernelmode = 1;
- thermal_mode = THERMAL_DEVICE_ENABLED;
+ thz_dev->mode = THERMAL_DEVICE_ENABLED;
thz_dev->polling_delay = interval*1000;
thermal_zone_device_update(thz_dev, THERMAL_EVENT_UNSPECIFIED);
@@ -419,7 +419,7 @@ static int acerhdf_get_mode(struct thermal_zone_device *thermal,
if (verbose)
pr_notice("kernel mode fan control %d\n", kernelmode);
- *mode = thermal_mode;
+ *mode = thermal->mode;
return 0;
}
@@ -741,8 +741,6 @@ static int __init acerhdf_register_thermal(void)
if (IS_ERR(cl_dev))
return -EINVAL;
- thermal_mode = kernelmode ?
- THERMAL_DEVICE_ENABLED : THERMAL_DEVICE_DISABLED;
thz_dev = thermal_zone_device_register("acerhdf", 2, 0, NULL,
&acerhdf_dev_ops,
&acerhdf_zone_params, 0,
@@ -750,6 +748,9 @@ static int __init acerhdf_register_thermal(void)
if (IS_ERR(thz_dev))
return -EINVAL;
+ thz_dev->mode = kernelmode ?
+ THERMAL_DEVICE_ENABLED : THERMAL_DEVICE_DISABLED;
+
if (strcmp(thz_dev->governor->name,
acerhdf_zone_params.governor_name)) {
pr_err("Didn't get thermal governor %s, perhaps not compiled into thermal subsystem.\n",
diff --git a/drivers/thermal/da9062-thermal.c b/drivers/thermal/da9062-thermal.c
index c32709badeda..a14c7981c7c7 100644
--- a/drivers/thermal/da9062-thermal.c
+++ b/drivers/thermal/da9062-thermal.c
@@ -49,7 +49,6 @@ struct da9062_thermal {
struct da9062 *hw;
struct delayed_work work;
struct thermal_zone_device *zone;
- enum thermal_device_mode mode;
struct mutex lock; /* protection for da9062_thermal temperature */
int temperature;
int irq;
@@ -124,8 +123,7 @@ static irqreturn_t da9062_thermal_irq_handler(int irq, void *data)
static int da9062_thermal_get_mode(struct thermal_zone_device *z,
enum thermal_device_mode *mode)
{
- struct da9062_thermal *thermal = z->devdata;
- *mode = thermal->mode;
+ *mode = z->mode;
return 0;
}
@@ -233,7 +231,6 @@ static int da9062_thermal_probe(struct platform_device *pdev)
thermal->config = match->data;
thermal->hw = chip;
- thermal->mode = THERMAL_DEVICE_ENABLED;
thermal->dev = &pdev->dev;
INIT_DELAYED_WORK(&thermal->work, da9062_thermal_poll_on);
@@ -248,6 +245,7 @@ static int da9062_thermal_probe(struct platform_device *pdev)
ret = PTR_ERR(thermal->zone);
goto err;
}
+ thermal->zone->mode = THERMAL_DEVICE_ENABLED;
dev_dbg(&pdev->dev,
"TJUNC temperature polling period set at %d ms\n",
diff --git a/drivers/thermal/imx_thermal.c b/drivers/thermal/imx_thermal.c
index e761c9b42217..9a1114d721b6 100644
--- a/drivers/thermal/imx_thermal.c
+++ b/drivers/thermal/imx_thermal.c
@@ -197,7 +197,6 @@ struct imx_thermal_data {
struct cpufreq_policy *policy;
struct thermal_zone_device *tz;
struct thermal_cooling_device *cdev;
- enum thermal_device_mode mode;
struct regmap *tempmon;
u32 c1, c2; /* See formula in imx_init_calib() */
int temp_passive;
@@ -256,7 +255,7 @@ static int imx_get_temp(struct thermal_zone_device *tz, int *temp)
bool wait;
u32 val;
- if (data->mode == THERMAL_DEVICE_ENABLED) {
+ if (tz->mode == THERMAL_DEVICE_ENABLED) {
/* Check if a measurement is currently in progress */
regmap_read(map, soc_data->temp_data, &val);
wait = !(val & soc_data->temp_valid_mask);
@@ -283,7 +282,7 @@ static int imx_get_temp(struct thermal_zone_device *tz, int *temp)
regmap_read(map, soc_data->temp_data, &val);
- if (data->mode != THERMAL_DEVICE_ENABLED) {
+ if (tz->mode != THERMAL_DEVICE_ENABLED) {
regmap_write(map, soc_data->sensor_ctrl + REG_CLR,
soc_data->measure_temp_mask);
regmap_write(map, soc_data->sensor_ctrl + REG_SET,
@@ -334,9 +333,7 @@ static int imx_get_temp(struct thermal_zone_device *tz, int *temp)
static int imx_get_mode(struct thermal_zone_device *tz,
enum thermal_device_mode *mode)
{
- struct imx_thermal_data *data = tz->devdata;
-
- *mode = data->mode;
+ *mode = tz->mode;
return 0;
}
@@ -376,7 +373,7 @@ static int imx_set_mode(struct thermal_zone_device *tz,
}
}
- data->mode = mode;
+ tz->mode = mode;
thermal_zone_device_update(tz, THERMAL_EVENT_UNSPECIFIED);
return 0;
@@ -831,7 +828,7 @@ static int imx_thermal_probe(struct platform_device *pdev)
data->socdata->measure_temp_mask);
data->irq_enabled = true;
- data->mode = THERMAL_DEVICE_ENABLED;
+ data->tz->mode = THERMAL_DEVICE_ENABLED;
ret = devm_request_threaded_irq(&pdev->dev, data->irq,
imx_thermal_alarm_irq, imx_thermal_alarm_irq_thread,
@@ -885,7 +882,7 @@ static int __maybe_unused imx_thermal_suspend(struct device *dev)
data->socdata->measure_temp_mask);
regmap_write(map, data->socdata->sensor_ctrl + REG_SET,
data->socdata->power_down_mask);
- data->mode = THERMAL_DEVICE_DISABLED;
+ data->tz->mode = THERMAL_DEVICE_DISABLED;
clk_disable_unprepare(data->thermal_clk);
return 0;
@@ -905,7 +902,7 @@ static int __maybe_unused imx_thermal_resume(struct device *dev)
data->socdata->power_down_mask);
regmap_write(map, data->socdata->sensor_ctrl + REG_SET,
data->socdata->measure_temp_mask);
- data->mode = THERMAL_DEVICE_ENABLED;
+ data->tz->mode = THERMAL_DEVICE_ENABLED;
return 0;
}
diff --git a/drivers/thermal/intel/int340x_thermal/int3400_thermal.c b/drivers/thermal/intel/int340x_thermal/int3400_thermal.c
index e84faaadff87..f65b2fc09198 100644
--- a/drivers/thermal/intel/int340x_thermal/int3400_thermal.c
+++ b/drivers/thermal/intel/int340x_thermal/int3400_thermal.c
@@ -48,7 +48,6 @@ struct int3400_thermal_priv {
struct acpi_device *adev;
struct platform_device *pdev;
struct thermal_zone_device *thermal;
- enum thermal_device_mode mode;
int art_count;
struct art *arts;
int trt_count;
@@ -381,12 +380,7 @@ static int int3400_thermal_get_temp(struct thermal_zone_device *thermal,
static int int3400_thermal_get_mode(struct thermal_zone_device *thermal,
enum thermal_device_mode *mode)
{
- struct int3400_thermal_priv *priv = thermal->devdata;
-
- if (!priv)
- return -EINVAL;
-
- *mode = priv->mode;
+ *mode = thermal->mode;
return 0;
}
@@ -404,8 +398,8 @@ static int int3400_thermal_set_mode(struct thermal_zone_device *thermal,
mode != THERMAL_DEVICE_DISABLED)
return -EINVAL;
- if (mode != priv->mode) {
- priv->mode = mode;
+ if (mode != thermal->mode) {
+ thermal->mode = mode;
result = int3400_thermal_run_osc(priv->adev->handle,
priv->current_uuid_index,
mode == THERMAL_DEVICE_ENABLED);
diff --git a/drivers/thermal/intel/intel_quark_dts_thermal.c b/drivers/thermal/intel/intel_quark_dts_thermal.c
index d704fc104cfd..d77cb3df5ade 100644
--- a/drivers/thermal/intel/intel_quark_dts_thermal.c
+++ b/drivers/thermal/intel/intel_quark_dts_thermal.c
@@ -103,7 +103,6 @@ struct soc_sensor_entry {
bool locked;
u32 store_ptps;
u32 store_dts_enable;
- enum thermal_device_mode mode;
struct thermal_zone_device *tzone;
};
@@ -128,7 +127,7 @@ static int soc_dts_enable(struct thermal_zone_device *tzd)
return ret;
if (out & QRK_DTS_ENABLE_BIT) {
- aux_entry->mode = THERMAL_DEVICE_ENABLED;
+ tzd->mode = THERMAL_DEVICE_ENABLED;
return 0;
}
@@ -139,9 +138,9 @@ static int soc_dts_enable(struct thermal_zone_device *tzd)
if (ret)
return ret;
- aux_entry->mode = THERMAL_DEVICE_ENABLED;
+ tzd->mode = THERMAL_DEVICE_ENABLED;
} else {
- aux_entry->mode = THERMAL_DEVICE_DISABLED;
+ tzd->mode = THERMAL_DEVICE_DISABLED;
pr_info("DTS is locked. Cannot enable DTS\n");
ret = -EPERM;
}
@@ -161,7 +160,7 @@ static int soc_dts_disable(struct thermal_zone_device *tzd)
return ret;
if (!(out & QRK_DTS_ENABLE_BIT)) {
- aux_entry->mode = THERMAL_DEVICE_DISABLED;
+ tzd->mode = THERMAL_DEVICE_DISABLED;
return 0;
}
@@ -173,9 +172,9 @@ static int soc_dts_disable(struct thermal_zone_device *tzd)
if (ret)
return ret;
- aux_entry->mode = THERMAL_DEVICE_DISABLED;
+ tzd->mode = THERMAL_DEVICE_DISABLED;
} else {
- aux_entry->mode = THERMAL_DEVICE_ENABLED;
+ tzd->mode = THERMAL_DEVICE_ENABLED;
pr_info("DTS is locked. Cannot disable DTS\n");
ret = -EPERM;
}
@@ -312,8 +311,7 @@ static int sys_get_curr_temp(struct thermal_zone_device *tzd,
static int sys_get_mode(struct thermal_zone_device *tzd,
enum thermal_device_mode *mode)
{
- struct soc_sensor_entry *aux_entry = tzd->devdata;
- *mode = aux_entry->mode;
+ *mode = tzd->mode;
return 0;
}
diff --git a/drivers/thermal/thermal_of.c b/drivers/thermal/thermal_of.c
index ddf88dbe7ba2..c495b1e48ef2 100644
--- a/drivers/thermal/thermal_of.c
+++ b/drivers/thermal/thermal_of.c
@@ -51,7 +51,6 @@ struct __thermal_bind_params {
/**
* struct __thermal_zone - internal representation of a thermal zone
- * @mode: current thermal zone device mode (enabled/disabled)
* @passive_delay: polling interval while passive cooling is activated
* @polling_delay: zone polling interval
* @slope: slope of the temperature adjustment curve
@@ -65,7 +64,6 @@ struct __thermal_bind_params {
*/
struct __thermal_zone {
- enum thermal_device_mode mode;
int passive_delay;
int polling_delay;
int slope;
@@ -272,9 +270,7 @@ static int of_thermal_unbind(struct thermal_zone_device *thermal,
static int of_thermal_get_mode(struct thermal_zone_device *tz,
enum thermal_device_mode *mode)
{
- struct __thermal_zone *data = tz->devdata;
-
- *mode = data->mode;
+ *mode = tz->mode;
return 0;
}
@@ -296,7 +292,7 @@ static int of_thermal_set_mode(struct thermal_zone_device *tz,
mutex_unlock(&tz->lock);
- data->mode = mode;
+ tz->mode = mode;
thermal_zone_device_update(tz, THERMAL_EVENT_UNSPECIFIED);
return 0;
@@ -979,7 +975,6 @@ __init *thermal_of_build_thermal_zone(struct device_node *np)
finish:
of_node_put(child);
- tz->mode = THERMAL_DEVICE_DISABLED;
return tz;
@@ -1134,6 +1129,7 @@ int __init of_parse_thermal_zones(void)
of_thermal_free_zone(tz);
/* attempting to build remaining zones still */
}
+ zone->mode = THERMAL_DEVICE_DISABLED;
}
of_node_put(np);
--
2.17.1
Some thermal zone devices never change their state, so they should be
always enabled.
Signed-off-by: Andrzej Pietrasiewicz <[email protected]>
---
drivers/net/ethernet/chelsio/cxgb4/cxgb4_thermal.c | 8 ++++++++
drivers/net/wireless/intel/iwlwifi/mvm/tt.c | 9 ++++++++-
drivers/platform/x86/intel_mid_thermal.c | 6 ++++++
drivers/power/supply/power_supply_core.c | 9 +++++++--
drivers/thermal/armada_thermal.c | 6 ++++++
drivers/thermal/dove_thermal.c | 6 ++++++
.../thermal/intel/int340x_thermal/int3400_thermal.c | 5 +++++
.../intel/int340x_thermal/int340x_thermal_zone.c | 5 +++++
drivers/thermal/intel/intel_pch_thermal.c | 5 +++++
drivers/thermal/intel/intel_soc_dts_iosf.c | 3 +++
drivers/thermal/intel/x86_pkg_temp_thermal.c | 6 ++++++
drivers/thermal/kirkwood_thermal.c | 7 +++++++
drivers/thermal/rcar_thermal.c | 9 ++++++++-
drivers/thermal/spear_thermal.c | 7 +++++++
drivers/thermal/st/st_thermal.c | 5 +++++
drivers/thermal/thermal_of.c | 10 +++++++++-
16 files changed, 101 insertions(+), 5 deletions(-)
diff --git a/drivers/net/ethernet/chelsio/cxgb4/cxgb4_thermal.c b/drivers/net/ethernet/chelsio/cxgb4/cxgb4_thermal.c
index 3de8a5e83b6c..e3510e9b21f3 100644
--- a/drivers/net/ethernet/chelsio/cxgb4/cxgb4_thermal.c
+++ b/drivers/net/ethernet/chelsio/cxgb4/cxgb4_thermal.c
@@ -92,6 +92,14 @@ int cxgb4_thermal_init(struct adapter *adap)
ch_thermal->tzdev = NULL;
return ret;
}
+
+ ret = thermal_zone_device_enable(ch_thermal->tzdev);
+ if (ret) {
+ dev_err(adap->pdev_dev, "Failed to enable thermal zone\n");
+ thermal_zone_device_unregister(adap->ch_thermal.tzdev);
+ return ret;
+ }
+
return 0;
}
diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/tt.c b/drivers/net/wireless/intel/iwlwifi/mvm/tt.c
index 418e59b7c671..0c95663bf9ed 100644
--- a/drivers/net/wireless/intel/iwlwifi/mvm/tt.c
+++ b/drivers/net/wireless/intel/iwlwifi/mvm/tt.c
@@ -733,7 +733,7 @@ static struct thermal_zone_device_ops tzone_ops = {
static void iwl_mvm_thermal_zone_register(struct iwl_mvm *mvm)
{
- int i;
+ int i, ret;
char name[16];
static atomic_t counter = ATOMIC_INIT(0);
@@ -759,6 +759,13 @@ static void iwl_mvm_thermal_zone_register(struct iwl_mvm *mvm)
return;
}
+ ret = thermal_zone_device_enable(mvm->tz_device.tzone);
+ if (ret) {
+ IWL_DEBUG_TEMP(mvm, "Failed to enable thermal zone\n");
+ thermal_zone_device_unregister(mvm->tz_device.tzone);
+ return;
+ }
+
/* 0 is a valid temperature,
* so initialize the array with S16_MIN which invalid temperature
*/
diff --git a/drivers/platform/x86/intel_mid_thermal.c b/drivers/platform/x86/intel_mid_thermal.c
index f402e2e74a38..f12f4e7bd971 100644
--- a/drivers/platform/x86/intel_mid_thermal.c
+++ b/drivers/platform/x86/intel_mid_thermal.c
@@ -493,6 +493,12 @@ static int mid_thermal_probe(struct platform_device *pdev)
ret = PTR_ERR(pinfo->tzd[i]);
goto err;
}
+ ret = thermal_zone_device_enable(pinfo->tzd[i]);
+ if (ret) {
+ kfree(td_info);
+ thermal_zone_device_unregister(pinfo->tzd[i]);
+ goto err;
+ }
}
pinfo->pdev = pdev;
diff --git a/drivers/power/supply/power_supply_core.c b/drivers/power/supply/power_supply_core.c
index 1a9a9fae73d3..ca64bb9e6eed 100644
--- a/drivers/power/supply/power_supply_core.c
+++ b/drivers/power/supply/power_supply_core.c
@@ -931,7 +931,7 @@ static struct thermal_zone_device_ops psy_tzd_ops = {
static int psy_register_thermal(struct power_supply *psy)
{
- int i;
+ int i, ret;
if (psy->desc->no_thermal)
return 0;
@@ -941,7 +941,12 @@ static int psy_register_thermal(struct power_supply *psy)
if (psy->desc->properties[i] == POWER_SUPPLY_PROP_TEMP) {
psy->tzd = thermal_zone_device_register(psy->desc->name,
0, 0, psy, &psy_tzd_ops, NULL, 0, 0);
- return PTR_ERR_OR_ZERO(psy->tzd);
+ if (IS_ERR(psy->tzd))
+ return PTR_ERR(psy->tzd);
+ ret = thermal_zone_device_enable(psy->tzd);
+ if (ret)
+ thermal_zone_device_unregister(psy->tzd);
+ return ret;
}
}
return 0;
diff --git a/drivers/thermal/armada_thermal.c b/drivers/thermal/armada_thermal.c
index 7c447cd149e7..c2ebfb5be4b3 100644
--- a/drivers/thermal/armada_thermal.c
+++ b/drivers/thermal/armada_thermal.c
@@ -874,6 +874,12 @@ static int armada_thermal_probe(struct platform_device *pdev)
return PTR_ERR(tz);
}
+ ret = thermal_zone_device_enable(tz);
+ if (ret) {
+ thermal_zone_device_unregister(tz);
+ return ret;
+ }
+
drvdata->type = LEGACY;
drvdata->data.tz = tz;
platform_set_drvdata(pdev, drvdata);
diff --git a/drivers/thermal/dove_thermal.c b/drivers/thermal/dove_thermal.c
index 75901ced4a62..73182eb94bc0 100644
--- a/drivers/thermal/dove_thermal.c
+++ b/drivers/thermal/dove_thermal.c
@@ -153,6 +153,12 @@ static int dove_thermal_probe(struct platform_device *pdev)
return PTR_ERR(thermal);
}
+ ret = thermal_zone_device_enable(thermal);
+ if (ret) {
+ thermal_zone_device_unregister(thermal);
+ return ret;
+ }
+
platform_set_drvdata(pdev, thermal);
return 0;
diff --git a/drivers/thermal/intel/int340x_thermal/int3400_thermal.c b/drivers/thermal/intel/int340x_thermal/int3400_thermal.c
index 3c0397a29b8c..8e8c9af7e5f4 100644
--- a/drivers/thermal/intel/int340x_thermal/int3400_thermal.c
+++ b/drivers/thermal/intel/int340x_thermal/int3400_thermal.c
@@ -485,6 +485,10 @@ static int int3400_thermal_probe(struct platform_device *pdev)
goto free_art_trt;
}
+ result = thermal_zone_device_enable(priv->thermal);
+ if (result)
+ goto free_tzd;
+
priv->rel_misc_dev_res = acpi_thermal_rel_misc_device_add(
priv->adev->handle);
@@ -518,6 +522,7 @@ static int int3400_thermal_probe(struct platform_device *pdev)
free_rel_misc:
if (!priv->rel_misc_dev_res)
acpi_thermal_rel_misc_device_remove(priv->adev->handle);
+free_tzd:
thermal_zone_device_unregister(priv->thermal);
free_art_trt:
kfree(priv->trts);
diff --git a/drivers/thermal/intel/int340x_thermal/int340x_thermal_zone.c b/drivers/thermal/intel/int340x_thermal/int340x_thermal_zone.c
index 432213272f1e..6e479deff76b 100644
--- a/drivers/thermal/intel/int340x_thermal/int340x_thermal_zone.c
+++ b/drivers/thermal/intel/int340x_thermal/int340x_thermal_zone.c
@@ -259,9 +259,14 @@ struct int34x_thermal_zone *int340x_thermal_zone_add(struct acpi_device *adev,
ret = PTR_ERR(int34x_thermal_zone->zone);
goto err_thermal_zone;
}
+ ret = thermal_zone_device_enable(int34x_thermal_zone->zone);
+ if (ret)
+ goto err_enable;
return int34x_thermal_zone;
+err_enable:
+ thermal_zone_device_unregister(int34x_thermal_zone->zone);
err_thermal_zone:
acpi_lpat_free_conversion_table(int34x_thermal_zone->lpat_table);
kfree(int34x_thermal_zone->aux_trips);
diff --git a/drivers/thermal/intel/intel_pch_thermal.c b/drivers/thermal/intel/intel_pch_thermal.c
index 56401fd4708d..65702094f3d3 100644
--- a/drivers/thermal/intel/intel_pch_thermal.c
+++ b/drivers/thermal/intel/intel_pch_thermal.c
@@ -352,9 +352,14 @@ static int intel_pch_thermal_probe(struct pci_dev *pdev,
err = PTR_ERR(ptd->tzd);
goto error_cleanup;
}
+ err = thermal_zone_device_enable(ptd->tzd);
+ if (err)
+ goto err_unregister;
return 0;
+err_unregister:
+ thermal_zone_device_unregister(ptd->tzd);
error_cleanup:
iounmap(ptd->hw_base);
error_release:
diff --git a/drivers/thermal/intel/intel_soc_dts_iosf.c b/drivers/thermal/intel/intel_soc_dts_iosf.c
index f75271b669c6..4f1a2f7c016c 100644
--- a/drivers/thermal/intel/intel_soc_dts_iosf.c
+++ b/drivers/thermal/intel/intel_soc_dts_iosf.c
@@ -329,6 +329,9 @@ static int add_dts_thermal_zone(int id, struct intel_soc_dts_sensor_entry *dts,
ret = PTR_ERR(dts->tzone);
goto err_ret;
}
+ ret = thermal_zone_device_enable(dts->tzone);
+ if (ret)
+ goto err_enable;
ret = soc_dts_enable(id);
if (ret)
diff --git a/drivers/thermal/intel/x86_pkg_temp_thermal.c b/drivers/thermal/intel/x86_pkg_temp_thermal.c
index a006b9fd1d72..b81c33202f41 100644
--- a/drivers/thermal/intel/x86_pkg_temp_thermal.c
+++ b/drivers/thermal/intel/x86_pkg_temp_thermal.c
@@ -363,6 +363,12 @@ static int pkg_temp_thermal_device_add(unsigned int cpu)
kfree(zonedev);
return err;
}
+ err = thermal_zone_device_enable(zonedev->tzone);
+ if (err) {
+ thermal_zone_device_unregister(zonedev->tzone);
+ kfree(zonedev);
+ return err;
+ }
/* Store MSR value for package thermal interrupt, to restore at exit */
rdmsr(MSR_IA32_PACKAGE_THERM_INTERRUPT, zonedev->msr_pkg_therm_low,
zonedev->msr_pkg_therm_high);
diff --git a/drivers/thermal/kirkwood_thermal.c b/drivers/thermal/kirkwood_thermal.c
index 189b675cf14d..7fb6e476c82a 100644
--- a/drivers/thermal/kirkwood_thermal.c
+++ b/drivers/thermal/kirkwood_thermal.c
@@ -65,6 +65,7 @@ static int kirkwood_thermal_probe(struct platform_device *pdev)
struct thermal_zone_device *thermal = NULL;
struct kirkwood_thermal_priv *priv;
struct resource *res;
+ int ret;
priv = devm_kzalloc(&pdev->dev, sizeof(*priv), GFP_KERNEL);
if (!priv)
@@ -82,6 +83,12 @@ static int kirkwood_thermal_probe(struct platform_device *pdev)
"Failed to register thermal zone device\n");
return PTR_ERR(thermal);
}
+ ret = thermal_zone_device_enable(thermal);
+ if (ret) {
+ thermal_zone_device_unregister(thermal);
+ dev_err(&pdev->dev, "Failed to enable thermal zone device\n");
+ return ret;
+ }
platform_set_drvdata(pdev, thermal);
diff --git a/drivers/thermal/rcar_thermal.c b/drivers/thermal/rcar_thermal.c
index 46aeb28b4e90..787710bb88fe 100644
--- a/drivers/thermal/rcar_thermal.c
+++ b/drivers/thermal/rcar_thermal.c
@@ -550,12 +550,19 @@ static int rcar_thermal_probe(struct platform_device *pdev)
priv->zone = devm_thermal_zone_of_sensor_register(
dev, i, priv,
&rcar_thermal_zone_of_ops);
- else
+ else {
priv->zone = thermal_zone_device_register(
"rcar_thermal",
1, 0, priv,
&rcar_thermal_zone_ops, NULL, 0,
idle);
+
+ ret = thermal_zone_device_enable(priv->zone);
+ if (ret) {
+ thermal_zone_device_unregister(priv->zone);
+ priv->zone = ERR_PTR(ret);
+ }
+ }
if (IS_ERR(priv->zone)) {
dev_err(dev, "can't register thermal zone\n");
ret = PTR_ERR(priv->zone);
diff --git a/drivers/thermal/spear_thermal.c b/drivers/thermal/spear_thermal.c
index f68f581fd669..ee33ed692e4f 100644
--- a/drivers/thermal/spear_thermal.c
+++ b/drivers/thermal/spear_thermal.c
@@ -131,6 +131,11 @@ static int spear_thermal_probe(struct platform_device *pdev)
ret = PTR_ERR(spear_thermal);
goto disable_clk;
}
+ ret = thermal_zone_device_enable(spear_thermal);
+ if (ret) {
+ dev_err(&pdev->dev, "Cannot enable thermal zone\n");
+ goto unregister_tzd;
+ }
platform_set_drvdata(pdev, spear_thermal);
@@ -139,6 +144,8 @@ static int spear_thermal_probe(struct platform_device *pdev)
return 0;
+unregister_tzd:
+ thermal_zone_device_unregister(spear_thermal);
disable_clk:
clk_disable(stdev->clk);
diff --git a/drivers/thermal/st/st_thermal.c b/drivers/thermal/st/st_thermal.c
index b928ca6a289b..1276b95604fe 100644
--- a/drivers/thermal/st/st_thermal.c
+++ b/drivers/thermal/st/st_thermal.c
@@ -246,11 +246,16 @@ int st_thermal_register(struct platform_device *pdev,
ret = PTR_ERR(sensor->thermal_dev);
goto sensor_off;
}
+ ret = thermal_zone_device_enable(sensor->thermal_dev);
+ if (ret)
+ goto tzd_unregister;
platform_set_drvdata(pdev, sensor);
return 0;
+tzd_unregister:
+ thermal_zone_device_unregister(sensor->thermal_dev);
sensor_off:
st_thermal_sensor_off(sensor);
diff --git a/drivers/thermal/thermal_of.c b/drivers/thermal/thermal_of.c
index 43a516a35d64..011fd7f0a01e 100644
--- a/drivers/thermal/thermal_of.c
+++ b/drivers/thermal/thermal_of.c
@@ -1066,7 +1066,7 @@ int __init of_parse_thermal_zones(void)
for_each_available_child_of_node(np, child) {
struct thermal_zone_device *zone;
struct thermal_zone_params *tzp;
- int i, mask = 0;
+ int i, ret, mask = 0;
u32 prop;
tz = thermal_of_build_thermal_zone(child);
@@ -1113,6 +1113,14 @@ int __init of_parse_thermal_zones(void)
of_thermal_free_zone(tz);
/* attempting to build remaining zones still */
}
+ ret = thermal_zone_device_enable(zone);
+ if (ret) {
+ thermal_zone_device_unregister(zone);
+ pr_err("Failed to enable thermal zone\n");
+ kfree(tzp);
+ kfree(ops);
+ of_thermal_free_zone(tz);
+ }
}
of_node_put(np);
--
2.17.1
Use thermal_zone_device_{en|dis}able() and thermal_zone_device_is_enabled().
Consequently, all set_mode() implementations in drivers:
- can stop modifying tzd's "mode" member,
- shall stop taking tzd's lock, as it is taken in the helpers
- shall stop calling thermal_zone_device_update() as it is called in the
helpers
- can assume they are called when the mode truly changes, so checks to
verify that can be dropped
Not providing set_mode() by a driver no longer prevents the core from
being able to set tzd's mode, so the relevant check in mode_store() is
removed.
Other comments:
- acpi/thermal.c: tz->thermal_zone->mode will be updated only after we
return from set_mode(), so use function parameter in thermal_set_mode()
instead, no need to call acpi_thermal_check() in set_mode()
- thermal/imx_thermal.c: regmap writes and mode assignment are done in
thermal_zone_device_{en|dis}able() and set_mode() callback
- thermal/intel/intel_quark_dts_thermal.c: soc_dts_{en|dis}able() are a
part of set_mode() callback, so they don't need to modify tzd->mode, and
don't need to fall back to the opposite mode if unsuccessful, as the return
value will be propagated to thermal_zone_device_{en|dis}able() and
ultimately tzd's member will not be changed in thermal_zone_device_set_mode().
- thermal/of-thermal.c: no need to set zone->mode to DISABLED in
of_parse_thermal_zones() as a tzd is kzalloc'ed so mode is DISABLED anyway
Signed-off-by: Andrzej Pietrasiewicz <[email protected]>
---
drivers/acpi/thermal.c | 21 ++++++-----
.../ethernet/mellanox/mlxsw/core_thermal.c | 37 +++++++++----------
drivers/platform/x86/acerhdf.c | 17 +++++----
drivers/thermal/da9062-thermal.c | 6 ++-
drivers/thermal/hisi_thermal.c | 6 ++-
drivers/thermal/imx_thermal.c | 33 +++++++----------
.../intel/int340x_thermal/int3400_thermal.c | 5 +--
.../thermal/intel/intel_quark_dts_thermal.c | 18 ++-------
drivers/thermal/rockchip_thermal.c | 6 ++-
drivers/thermal/sprd_thermal.c | 6 ++-
drivers/thermal/thermal_core.c | 2 +-
drivers/thermal/thermal_of.c | 10 +----
drivers/thermal/thermal_sysfs.c | 11 ++----
13 files changed, 80 insertions(+), 98 deletions(-)
diff --git a/drivers/acpi/thermal.c b/drivers/acpi/thermal.c
index 592be97c4456..52b6cda1bcc3 100644
--- a/drivers/acpi/thermal.c
+++ b/drivers/acpi/thermal.c
@@ -499,7 +499,7 @@ static void acpi_thermal_check(void *data)
{
struct acpi_thermal *tz = data;
- if (tz->thermal_zone->mode != THERMAL_DEVICE_ENABLED)
+ if (!thermal_zone_device_is_enabled(tz->thermal_zone))
return;
thermal_zone_device_update(tz->thermal_zone,
@@ -542,14 +542,11 @@ static int thermal_set_mode(struct thermal_zone_device *thermal,
if (mode == THERMAL_DEVICE_DISABLED)
pr_warn("thermal zone will be disabled\n");
- if (mode != tz->thermal_zone->mode) {
- tz->thermal_zone->mode = mode;
- ACPI_DEBUG_PRINT((ACPI_DB_INFO,
- "%s kernel ACPI thermal control\n",
- tz->thermal_zone->mode == THERMAL_DEVICE_ENABLED ?
- "Enable" : "Disable"));
- acpi_thermal_check(tz);
- }
+ ACPI_DEBUG_PRINT((ACPI_DB_INFO,
+ "%s kernel ACPI thermal control\n",
+ mode == THERMAL_DEVICE_ENABLED ?
+ "Enable" : "Disable"));
+
return 0;
}
@@ -897,13 +894,17 @@ static int acpi_thermal_register_thermal_zone(struct acpi_thermal *tz)
goto remove_dev_link;
}
- tz->thermal_zone->mode = THERMAL_DEVICE_ENABLED;
+ result = thermal_zone_device_enable(tz->thermal_zone);
+ if (result)
+ goto acpi_bus_detach;
dev_info(&tz->device->dev, "registered as thermal_zone%d\n",
tz->thermal_zone->id);
return 0;
+acpi_bus_detach:
+ acpi_bus_detach_private_data(tz->device->handle);
remove_dev_link:
sysfs_remove_link(&tz->thermal_zone->device.kobj, "device");
remove_tz_link:
diff --git a/drivers/net/ethernet/mellanox/mlxsw/core_thermal.c b/drivers/net/ethernet/mellanox/mlxsw/core_thermal.c
index 6e26678ac312..e1d800be8bb4 100644
--- a/drivers/net/ethernet/mellanox/mlxsw/core_thermal.c
+++ b/drivers/net/ethernet/mellanox/mlxsw/core_thermal.c
@@ -280,18 +280,11 @@ static int mlxsw_thermal_set_mode(struct thermal_zone_device *tzdev,
{
struct mlxsw_thermal *thermal = tzdev->devdata;
- mutex_lock(&tzdev->lock);
-
if (mode == THERMAL_DEVICE_ENABLED)
tzdev->polling_delay = thermal->polling_delay;
else
tzdev->polling_delay = 0;
- tzdev->mode = mode;
- mutex_unlock(&tzdev->lock);
-
- thermal_zone_device_update(tzdev, THERMAL_EVENT_UNSPECIFIED);
-
return 0;
}
@@ -459,19 +452,11 @@ static int mlxsw_thermal_module_mode_set(struct thermal_zone_device *tzdev,
struct mlxsw_thermal_module *tz = tzdev->devdata;
struct mlxsw_thermal *thermal = tz->parent;
- mutex_lock(&tzdev->lock);
-
if (mode == THERMAL_DEVICE_ENABLED)
tzdev->polling_delay = thermal->polling_delay;
else
tzdev->polling_delay = 0;
- tzdev->mode = mode;
-
- mutex_unlock(&tzdev->lock);
-
- thermal_zone_device_update(tzdev, THERMAL_EVENT_UNSPECIFIED);
-
return 0;
}
@@ -741,8 +726,11 @@ mlxsw_thermal_module_tz_init(struct mlxsw_thermal_module *module_tz)
return err;
}
- module_tz->tzdev->mode = THERMAL_DEVICE_ENABLED;
- return 0;
+ err = thermal_zone_device_enable(module_tz->tzdev);
+ if (err)
+ thermal_zone_device_unregister(module_tz->tzdev);
+
+ return err;
}
static void mlxsw_thermal_module_tz_fini(struct thermal_zone_device *tzdev)
@@ -845,6 +833,7 @@ static int
mlxsw_thermal_gearbox_tz_init(struct mlxsw_thermal_module *gearbox_tz)
{
char tz_name[MLXSW_THERMAL_ZONE_MAX_NAME];
+ int ret;
snprintf(tz_name, sizeof(tz_name), "mlxsw-gearbox%d",
gearbox_tz->module + 1);
@@ -857,8 +846,11 @@ mlxsw_thermal_gearbox_tz_init(struct mlxsw_thermal_module *gearbox_tz)
if (IS_ERR(gearbox_tz->tzdev))
return PTR_ERR(gearbox_tz->tzdev);
- gearbox_tz->tzdev->mode = THERMAL_DEVICE_ENABLED;
- return 0;
+ ret = thermal_zone_device_enable(gearbox_tz->tzdev);
+ if (ret)
+ thermal_zone_device_unregister(gearbox_tz->tzdev);
+
+ return ret;
}
static void
@@ -1026,10 +1018,15 @@ int mlxsw_thermal_init(struct mlxsw_core *core,
if (err)
goto err_unreg_modules_tzdev;
- thermal->tzdev->mode = THERMAL_DEVICE_ENABLED;
+ err = thermal_zone_device_enable(thermal->tzdev);
+ if (err)
+ goto err_unreg_gearboxes;
+
*p_thermal = thermal;
return 0;
+err_unreg_gearboxes:
+ mlxsw_thermal_gearboxes_fini(thermal);
err_unreg_modules_tzdev:
mlxsw_thermal_modules_fini(thermal);
err_unreg_tzdev:
diff --git a/drivers/platform/x86/acerhdf.c b/drivers/platform/x86/acerhdf.c
index 32c5fe16b7f7..3efe749dc5a0 100644
--- a/drivers/platform/x86/acerhdf.c
+++ b/drivers/platform/x86/acerhdf.c
@@ -397,19 +397,16 @@ static inline void acerhdf_revert_to_bios_mode(void)
{
acerhdf_change_fanstate(ACERHDF_FAN_AUTO);
kernelmode = 0;
- if (thz_dev) {
- thz_dev->mode = THERMAL_DEVICE_DISABLED;
+ if (thz_dev)
thz_dev->polling_delay = 0;
- }
+
pr_notice("kernel mode fan control OFF\n");
}
static inline void acerhdf_enable_kernelmode(void)
{
kernelmode = 1;
- thz_dev->mode = THERMAL_DEVICE_ENABLED;
thz_dev->polling_delay = interval*1000;
- thermal_zone_device_update(thz_dev, THERMAL_EVENT_UNSPECIFIED);
pr_notice("kernel mode fan control ON\n");
}
@@ -723,6 +720,8 @@ static void acerhdf_unregister_platform(void)
static int __init acerhdf_register_thermal(void)
{
+ int ret;
+
cl_dev = thermal_cooling_device_register("acerhdf-fan", NULL,
&acerhdf_cooling_ops);
@@ -736,8 +735,12 @@ static int __init acerhdf_register_thermal(void)
if (IS_ERR(thz_dev))
return -EINVAL;
- thz_dev->mode = kernelmode ?
- THERMAL_DEVICE_ENABLED : THERMAL_DEVICE_DISABLED;
+ if (kernelmode)
+ ret = thermal_zone_device_enable(thz_dev);
+ else
+ ret = thermal_zone_device_disable(thz_dev);
+ if (ret)
+ return ret;
if (strcmp(thz_dev->governor->name,
acerhdf_zone_params.governor_name)) {
diff --git a/drivers/thermal/da9062-thermal.c b/drivers/thermal/da9062-thermal.c
index a7ac8afb063e..4d74994f160a 100644
--- a/drivers/thermal/da9062-thermal.c
+++ b/drivers/thermal/da9062-thermal.c
@@ -237,7 +237,11 @@ static int da9062_thermal_probe(struct platform_device *pdev)
ret = PTR_ERR(thermal->zone);
goto err;
}
- thermal->zone->mode = THERMAL_DEVICE_ENABLED;
+ ret = thermal_zone_device_enable(thermal->zone);
+ if (ret) {
+ dev_err(&pdev->dev, "Cannot enable thermal zone device\n");
+ goto err_zone;
+ }
dev_dbg(&pdev->dev,
"TJUNC temperature polling period set at %d ms\n",
diff --git a/drivers/thermal/hisi_thermal.c b/drivers/thermal/hisi_thermal.c
index 2d26ae80e202..ee05950afd2f 100644
--- a/drivers/thermal/hisi_thermal.c
+++ b/drivers/thermal/hisi_thermal.c
@@ -549,8 +549,10 @@ static void hisi_thermal_toggle_sensor(struct hisi_thermal_sensor *sensor,
{
struct thermal_zone_device *tzd = sensor->tzd;
- tzd->ops->set_mode(tzd,
- on ? THERMAL_DEVICE_ENABLED : THERMAL_DEVICE_DISABLED);
+ if (on)
+ thermal_zone_device_enable(tzd);
+ else
+ thermal_zone_device_disable(tzd);
}
static int hisi_thermal_probe(struct platform_device *pdev)
diff --git a/drivers/thermal/imx_thermal.c b/drivers/thermal/imx_thermal.c
index 2c7ee5da608a..53abb1be1cba 100644
--- a/drivers/thermal/imx_thermal.c
+++ b/drivers/thermal/imx_thermal.c
@@ -255,7 +255,7 @@ static int imx_get_temp(struct thermal_zone_device *tz, int *temp)
bool wait;
u32 val;
- if (tz->mode == THERMAL_DEVICE_ENABLED) {
+ if (thermal_zone_device_is_enabled(tz)) {
/* Check if a measurement is currently in progress */
regmap_read(map, soc_data->temp_data, &val);
wait = !(val & soc_data->temp_valid_mask);
@@ -282,7 +282,7 @@ static int imx_get_temp(struct thermal_zone_device *tz, int *temp)
regmap_read(map, soc_data->temp_data, &val);
- if (tz->mode != THERMAL_DEVICE_ENABLED) {
+ if (!thermal_zone_device_is_enabled(tz)) {
regmap_write(map, soc_data->sensor_ctrl + REG_CLR,
soc_data->measure_temp_mask);
regmap_write(map, soc_data->sensor_ctrl + REG_SET,
@@ -365,9 +365,6 @@ static int imx_set_mode(struct thermal_zone_device *tz,
}
}
- tz->mode = mode;
- thermal_zone_device_update(tz, THERMAL_EVENT_UNSPECIFIED);
-
return 0;
}
@@ -819,7 +816,9 @@ static int imx_thermal_probe(struct platform_device *pdev)
data->socdata->measure_temp_mask);
data->irq_enabled = true;
- data->tz->mode = THERMAL_DEVICE_ENABLED;
+ ret = thermal_zone_device_enable(data->tz);
+ if (ret)
+ goto thermal_zone_unregister;
ret = devm_request_threaded_irq(&pdev->dev, data->irq,
imx_thermal_alarm_irq, imx_thermal_alarm_irq_thread,
@@ -861,19 +860,18 @@ static int imx_thermal_remove(struct platform_device *pdev)
static int __maybe_unused imx_thermal_suspend(struct device *dev)
{
struct imx_thermal_data *data = dev_get_drvdata(dev);
- struct regmap *map = data->tempmon;
+ int ret;
/*
* Need to disable thermal sensor, otherwise, when thermal core
* try to get temperature before thermal sensor resume, a wrong
* temperature will be read as the thermal sensor is powered
- * down.
+ * down. This is done in set_mode() operation called from
+ * thermal_zone_device_disable()
*/
- regmap_write(map, data->socdata->sensor_ctrl + REG_CLR,
- data->socdata->measure_temp_mask);
- regmap_write(map, data->socdata->sensor_ctrl + REG_SET,
- data->socdata->power_down_mask);
- data->tz->mode = THERMAL_DEVICE_DISABLED;
+ ret = thermal_zone_device_disable(data->tz);
+ if (ret)
+ return ret;
clk_disable_unprepare(data->thermal_clk);
return 0;
@@ -882,18 +880,15 @@ static int __maybe_unused imx_thermal_suspend(struct device *dev)
static int __maybe_unused imx_thermal_resume(struct device *dev)
{
struct imx_thermal_data *data = dev_get_drvdata(dev);
- struct regmap *map = data->tempmon;
int ret;
ret = clk_prepare_enable(data->thermal_clk);
if (ret)
return ret;
/* Enabled thermal sensor after resume */
- regmap_write(map, data->socdata->sensor_ctrl + REG_CLR,
- data->socdata->power_down_mask);
- regmap_write(map, data->socdata->sensor_ctrl + REG_SET,
- data->socdata->measure_temp_mask);
- data->tz->mode = THERMAL_DEVICE_ENABLED;
+ ret = thermal_zone_device_enable(data->tz);
+ if (ret)
+ return ret;
return 0;
}
diff --git a/drivers/thermal/intel/int340x_thermal/int3400_thermal.c b/drivers/thermal/intel/int340x_thermal/int3400_thermal.c
index 9a622aaf29dd..3c0397a29b8c 100644
--- a/drivers/thermal/intel/int340x_thermal/int3400_thermal.c
+++ b/drivers/thermal/intel/int340x_thermal/int3400_thermal.c
@@ -390,12 +390,11 @@ static int int3400_thermal_set_mode(struct thermal_zone_device *thermal,
mode != THERMAL_DEVICE_DISABLED)
return -EINVAL;
- if (mode != thermal->mode) {
- thermal->mode = mode;
+ if (mode != thermal->mode)
result = int3400_thermal_run_osc(priv->adev->handle,
priv->current_uuid_index,
mode == THERMAL_DEVICE_ENABLED);
- }
+
evaluate_odvp(priv);
diff --git a/drivers/thermal/intel/intel_quark_dts_thermal.c b/drivers/thermal/intel/intel_quark_dts_thermal.c
index c4879b4bfbf1..e29c3e330b17 100644
--- a/drivers/thermal/intel/intel_quark_dts_thermal.c
+++ b/drivers/thermal/intel/intel_quark_dts_thermal.c
@@ -126,10 +126,8 @@ static int soc_dts_enable(struct thermal_zone_device *tzd)
if (ret)
return ret;
- if (out & QRK_DTS_ENABLE_BIT) {
- tzd->mode = THERMAL_DEVICE_ENABLED;
+ if (out & QRK_DTS_ENABLE_BIT)
return 0;
- }
if (!aux_entry->locked) {
out |= QRK_DTS_ENABLE_BIT;
@@ -137,10 +135,7 @@ static int soc_dts_enable(struct thermal_zone_device *tzd)
QRK_DTS_REG_OFFSET_ENABLE, out);
if (ret)
return ret;
-
- tzd->mode = THERMAL_DEVICE_ENABLED;
} else {
- tzd->mode = THERMAL_DEVICE_DISABLED;
pr_info("DTS is locked. Cannot enable DTS\n");
ret = -EPERM;
}
@@ -159,10 +154,8 @@ static int soc_dts_disable(struct thermal_zone_device *tzd)
if (ret)
return ret;
- if (!(out & QRK_DTS_ENABLE_BIT)) {
- tzd->mode = THERMAL_DEVICE_DISABLED;
+ if (!(out & QRK_DTS_ENABLE_BIT))
return 0;
- }
if (!aux_entry->locked) {
out &= ~QRK_DTS_ENABLE_BIT;
@@ -171,10 +164,7 @@ static int soc_dts_disable(struct thermal_zone_device *tzd)
if (ret)
return ret;
-
- tzd->mode = THERMAL_DEVICE_DISABLED;
} else {
- tzd->mode = THERMAL_DEVICE_ENABLED;
pr_info("DTS is locked. Cannot disable DTS\n");
ret = -EPERM;
}
@@ -404,9 +394,7 @@ static struct soc_sensor_entry *alloc_soc_dts(void)
goto err_ret;
}
- mutex_lock(&dts_update_mutex);
- err = soc_dts_enable(aux_entry->tzone);
- mutex_unlock(&dts_update_mutex);
+ err = thermal_zone_device_enable(aux_entry->tzone);
if (err)
goto err_aux_status;
diff --git a/drivers/thermal/rockchip_thermal.c b/drivers/thermal/rockchip_thermal.c
index 15a71ecc916c..aa9e0e31ef98 100644
--- a/drivers/thermal/rockchip_thermal.c
+++ b/drivers/thermal/rockchip_thermal.c
@@ -1068,8 +1068,10 @@ rockchip_thermal_toggle_sensor(struct rockchip_thermal_sensor *sensor, bool on)
{
struct thermal_zone_device *tzd = sensor->tzd;
- tzd->ops->set_mode(tzd,
- on ? THERMAL_DEVICE_ENABLED : THERMAL_DEVICE_DISABLED);
+ if (on)
+ thermal_zone_device_enable(tzd);
+ else
+ thermal_zone_device_disable(tzd);
}
static irqreturn_t rockchip_thermal_alarm_irq_thread(int irq, void *dev)
diff --git a/drivers/thermal/sprd_thermal.c b/drivers/thermal/sprd_thermal.c
index a340374e8c51..58f995b0f804 100644
--- a/drivers/thermal/sprd_thermal.c
+++ b/drivers/thermal/sprd_thermal.c
@@ -322,8 +322,10 @@ static void sprd_thm_toggle_sensor(struct sprd_thermal_sensor *sen, bool on)
{
struct thermal_zone_device *tzd = sen->tzd;
- tzd->ops->set_mode(tzd,
- on ? THERMAL_DEVICE_ENABLED : THERMAL_DEVICE_DISABLED);
+ if (on)
+ thermal_zone_device_enable(tzd);
+ else
+ thermal_zone_device_disable(tzd);
}
static int sprd_thm_probe(struct platform_device *pdev)
diff --git a/drivers/thermal/thermal_core.c b/drivers/thermal/thermal_core.c
index f2a5c5ee3455..14baf0288759 100644
--- a/drivers/thermal/thermal_core.c
+++ b/drivers/thermal/thermal_core.c
@@ -1521,7 +1521,7 @@ static int thermal_pm_notify(struct notifier_block *nb,
case PM_POST_SUSPEND:
atomic_set(&in_suspend, 0);
list_for_each_entry(tz, &thermal_tz_list, node) {
- if (tz->mode == THERMAL_DEVICE_DISABLED)
+ if (!thermal_zone_device_is_enabled(tz))
continue;
thermal_zone_device_init(tz);
diff --git a/drivers/thermal/thermal_of.c b/drivers/thermal/thermal_of.c
index ba65d48a48cb..43a516a35d64 100644
--- a/drivers/thermal/thermal_of.c
+++ b/drivers/thermal/thermal_of.c
@@ -272,8 +272,6 @@ static int of_thermal_set_mode(struct thermal_zone_device *tz,
{
struct __thermal_zone *data = tz->devdata;
- mutex_lock(&tz->lock);
-
if (mode == THERMAL_DEVICE_ENABLED) {
tz->polling_delay = data->polling_delay;
tz->passive_delay = data->passive_delay;
@@ -282,11 +280,6 @@ static int of_thermal_set_mode(struct thermal_zone_device *tz,
tz->passive_delay = 0;
}
- mutex_unlock(&tz->lock);
-
- tz->mode = mode;
- thermal_zone_device_update(tz, THERMAL_EVENT_UNSPECIFIED);
-
return 0;
}
@@ -541,7 +534,7 @@ thermal_zone_of_sensor_register(struct device *dev, int sensor_id, void *data,
tzd = thermal_zone_of_add_sensor(child, sensor_np,
data, ops);
if (!IS_ERR(tzd))
- tzd->ops->set_mode(tzd, THERMAL_DEVICE_ENABLED);
+ thermal_zone_device_enable(tzd);
of_node_put(child);
goto exit;
@@ -1120,7 +1113,6 @@ int __init of_parse_thermal_zones(void)
of_thermal_free_zone(tz);
/* attempting to build remaining zones still */
}
- zone->mode = THERMAL_DEVICE_DISABLED;
}
of_node_put(np);
diff --git a/drivers/thermal/thermal_sysfs.c b/drivers/thermal/thermal_sysfs.c
index 096370977068..c23d67c4dc4e 100644
--- a/drivers/thermal/thermal_sysfs.c
+++ b/drivers/thermal/thermal_sysfs.c
@@ -49,9 +49,9 @@ static ssize_t
mode_show(struct device *dev, struct device_attribute *attr, char *buf)
{
struct thermal_zone_device *tz = to_thermal_zone(dev);
+ int enabled = thermal_zone_device_is_enabled(tz);
- return sprintf(buf, "%s\n", tz->mode == THERMAL_DEVICE_ENABLED ?
- "enabled" : "disabled");
+ return sprintf(buf, "%s\n", enabled ? "enabled" : "disabled");
}
static ssize_t
@@ -61,13 +61,10 @@ mode_store(struct device *dev, struct device_attribute *attr,
struct thermal_zone_device *tz = to_thermal_zone(dev);
int result;
- if (!tz->ops->set_mode)
- return -EPERM;
-
if (!strncmp(buf, "enabled", sizeof("enabled") - 1))
- result = tz->ops->set_mode(tz, THERMAL_DEVICE_ENABLED);
+ result = thermal_zone_device_enable(tz);
else if (!strncmp(buf, "disabled", sizeof("disabled") - 1))
- result = tz->ops->set_mode(tz, THERMAL_DEVICE_DISABLED);
+ result = thermal_zone_device_disable(tz);
else
result = -EINVAL;
--
2.17.1
set_mode() is only called when tzd's mode is about to change. Actual
setting is performed in thermal_core, in thermal_zone_device_set_mode().
The meaning of set_mode() callback is actually to notify the driver about
the mode being changed and giving the driver a chance to oppose such
change.
To better reflect the purpose of the method rename it to change_mode()
Signed-off-by: Andrzej Pietrasiewicz <[email protected]>
---
drivers/platform/x86/acerhdf.c | 6 +++---
drivers/thermal/imx_thermal.c | 8 ++++----
drivers/thermal/intel/int340x_thermal/int3400_thermal.c | 6 +++---
drivers/thermal/intel/intel_quark_dts_thermal.c | 6 +++---
drivers/thermal/thermal_core.c | 4 ++--
include/linux/thermal.h | 2 +-
6 files changed, 16 insertions(+), 16 deletions(-)
diff --git a/drivers/platform/x86/acerhdf.c b/drivers/platform/x86/acerhdf.c
index d33a70af0869..63b562e06d5c 100644
--- a/drivers/platform/x86/acerhdf.c
+++ b/drivers/platform/x86/acerhdf.c
@@ -413,8 +413,8 @@ static inline void acerhdf_enable_kernelmode(void)
* the temperature and the fan.
* disabled: the BIOS takes control of the fan.
*/
-static int acerhdf_set_mode(struct thermal_zone_device *thermal,
- enum thermal_device_mode mode)
+static int acerhdf_change_mode(struct thermal_zone_device *thermal,
+ enum thermal_device_mode mode)
{
if (mode == THERMAL_DEVICE_DISABLED && kernelmode)
acerhdf_revert_to_bios_mode();
@@ -473,7 +473,7 @@ static struct thermal_zone_device_ops acerhdf_dev_ops = {
.bind = acerhdf_bind,
.unbind = acerhdf_unbind,
.get_temp = acerhdf_get_ec_temp,
- .set_mode = acerhdf_set_mode,
+ .change_mode = acerhdf_change_mode,
.get_trip_type = acerhdf_get_trip_type,
.get_trip_hyst = acerhdf_get_trip_hyst,
.get_trip_temp = acerhdf_get_trip_temp,
diff --git a/drivers/thermal/imx_thermal.c b/drivers/thermal/imx_thermal.c
index a02398118d88..9700ae39feb7 100644
--- a/drivers/thermal/imx_thermal.c
+++ b/drivers/thermal/imx_thermal.c
@@ -330,8 +330,8 @@ static int imx_get_temp(struct thermal_zone_device *tz, int *temp)
return 0;
}
-static int imx_set_mode(struct thermal_zone_device *tz,
- enum thermal_device_mode mode)
+static int imx_change_mode(struct thermal_zone_device *tz,
+ enum thermal_device_mode mode)
{
struct imx_thermal_data *data = tz->devdata;
struct regmap *map = data->tempmon;
@@ -447,7 +447,7 @@ static struct thermal_zone_device_ops imx_tz_ops = {
.bind = imx_bind,
.unbind = imx_unbind,
.get_temp = imx_get_temp,
- .set_mode = imx_set_mode,
+ .change_mode = imx_change_mode,
.get_trip_type = imx_get_trip_type,
.get_trip_temp = imx_get_trip_temp,
.get_crit_temp = imx_get_crit_temp,
@@ -860,7 +860,7 @@ static int __maybe_unused imx_thermal_suspend(struct device *dev)
* Need to disable thermal sensor, otherwise, when thermal core
* try to get temperature before thermal sensor resume, a wrong
* temperature will be read as the thermal sensor is powered
- * down. This is done in set_mode() operation called from
+ * down. This is done in change_mode() operation called from
* thermal_zone_device_disable()
*/
ret = thermal_zone_device_disable(data->tz);
diff --git a/drivers/thermal/intel/int340x_thermal/int3400_thermal.c b/drivers/thermal/intel/int340x_thermal/int3400_thermal.c
index 9af862ab9f65..58870d215471 100644
--- a/drivers/thermal/intel/int340x_thermal/int3400_thermal.c
+++ b/drivers/thermal/intel/int340x_thermal/int3400_thermal.c
@@ -377,8 +377,8 @@ static int int3400_thermal_get_temp(struct thermal_zone_device *thermal,
return 0;
}
-static int int3400_thermal_set_mode(struct thermal_zone_device *thermal,
- enum thermal_device_mode mode)
+static int int3400_thermal_change_mode(struct thermal_zone_device *thermal,
+ enum thermal_device_mode mode)
{
struct int3400_thermal_priv *priv = thermal->devdata;
int result = 0;
@@ -399,7 +399,7 @@ static int int3400_thermal_set_mode(struct thermal_zone_device *thermal,
static struct thermal_zone_device_ops int3400_thermal_ops = {
.get_temp = int3400_thermal_get_temp,
- .set_mode = int3400_thermal_set_mode,
+ .change_mode = int3400_thermal_change_mode,
};
static struct thermal_zone_params int3400_thermal_params = {
diff --git a/drivers/thermal/intel/intel_quark_dts_thermal.c b/drivers/thermal/intel/intel_quark_dts_thermal.c
index e29c3e330b17..3eafc6b0e6c3 100644
--- a/drivers/thermal/intel/intel_quark_dts_thermal.c
+++ b/drivers/thermal/intel/intel_quark_dts_thermal.c
@@ -298,8 +298,8 @@ static int sys_get_curr_temp(struct thermal_zone_device *tzd,
return 0;
}
-static int sys_set_mode(struct thermal_zone_device *tzd,
- enum thermal_device_mode mode)
+static int sys_change_mode(struct thermal_zone_device *tzd,
+ enum thermal_device_mode mode)
{
int ret;
@@ -319,7 +319,7 @@ static struct thermal_zone_device_ops tzone_ops = {
.get_trip_type = sys_get_trip_type,
.set_trip_temp = sys_set_trip_temp,
.get_crit_temp = sys_get_crit_temp,
- .set_mode = sys_set_mode,
+ .change_mode = sys_change_mode,
};
static void free_soc_dts(struct soc_sensor_entry *aux_entry)
diff --git a/drivers/thermal/thermal_core.c b/drivers/thermal/thermal_core.c
index e9c0b990e4a9..c00edae7839e 100644
--- a/drivers/thermal/thermal_core.c
+++ b/drivers/thermal/thermal_core.c
@@ -482,8 +482,8 @@ int thermal_zone_device_set_mode(struct thermal_zone_device *tz,
return ret;
}
- if (tz->ops->set_mode)
- ret = tz->ops->set_mode(tz, mode);
+ if (tz->ops->change_mode)
+ ret = tz->ops->change_mode(tz, mode);
if (!ret)
tz->mode = mode;
diff --git a/include/linux/thermal.h b/include/linux/thermal.h
index df013c39ba9b..b9efaa780d88 100644
--- a/include/linux/thermal.h
+++ b/include/linux/thermal.h
@@ -76,7 +76,7 @@ struct thermal_zone_device_ops {
struct thermal_cooling_device *);
int (*get_temp) (struct thermal_zone_device *, int *);
int (*set_trips) (struct thermal_zone_device *, int, int);
- int (*set_mode) (struct thermal_zone_device *,
+ int (*change_mode) (struct thermal_zone_device *,
enum thermal_device_mode);
int (*get_trip_type) (struct thermal_zone_device *, int,
enum thermal_trip_type *);
--
2.17.1
Prepare for storing mode in struct thermal_zone_device.
Signed-off-by: Andrzej Pietrasiewicz <[email protected]>
---
drivers/acpi/thermal.c | 27 +++++++++----------
drivers/platform/x86/acerhdf.c | 8 ++++--
.../intel/int340x_thermal/int3400_thermal.c | 18 +++++--------
3 files changed, 25 insertions(+), 28 deletions(-)
diff --git a/drivers/acpi/thermal.c b/drivers/acpi/thermal.c
index 6de8066ca1e7..fb46070c66d8 100644
--- a/drivers/acpi/thermal.c
+++ b/drivers/acpi/thermal.c
@@ -172,7 +172,7 @@ struct acpi_thermal {
struct acpi_thermal_trips trips;
struct acpi_handle_list devices;
struct thermal_zone_device *thermal_zone;
- int tz_enabled;
+ enum thermal_device_mode mode;
int kelvin_offset; /* in millidegrees */
struct work_struct thermal_check_work;
};
@@ -500,7 +500,7 @@ static void acpi_thermal_check(void *data)
{
struct acpi_thermal *tz = data;
- if (!tz->tz_enabled)
+ if (tz->mode != THERMAL_DEVICE_ENABLED)
return;
thermal_zone_device_update(tz->thermal_zone,
@@ -534,8 +534,7 @@ static int thermal_get_mode(struct thermal_zone_device *thermal,
if (!tz)
return -EINVAL;
- *mode = tz->tz_enabled ? THERMAL_DEVICE_ENABLED :
- THERMAL_DEVICE_DISABLED;
+ *mode = tz->mode;
return 0;
}
@@ -544,27 +543,25 @@ static int thermal_set_mode(struct thermal_zone_device *thermal,
enum thermal_device_mode mode)
{
struct acpi_thermal *tz = thermal->devdata;
- int enable;
if (!tz)
return -EINVAL;
+ if (mode != THERMAL_DEVICE_DISABLED &&
+ mode != THERMAL_DEVICE_ENABLED)
+ return -EINVAL;
/*
* enable/disable thermal management from ACPI thermal driver
*/
- if (mode == THERMAL_DEVICE_ENABLED)
- enable = 1;
- else if (mode == THERMAL_DEVICE_DISABLED) {
- enable = 0;
+ if (mode == THERMAL_DEVICE_DISABLED)
pr_warn("thermal zone will be disabled\n");
- } else
- return -EINVAL;
- if (enable != tz->tz_enabled) {
- tz->tz_enabled = enable;
+ if (mode != tz->mode) {
+ tz->mode = mode;
ACPI_DEBUG_PRINT((ACPI_DB_INFO,
"%s kernel ACPI thermal control\n",
- tz->tz_enabled ? "Enable" : "Disable"));
+ tz->mode == THERMAL_DEVICE_ENABLED ?
+ "Enable" : "Disable"));
acpi_thermal_check(tz);
}
return 0;
@@ -915,7 +912,7 @@ static int acpi_thermal_register_thermal_zone(struct acpi_thermal *tz)
goto remove_dev_link;
}
- tz->tz_enabled = 1;
+ tz->mode = THERMAL_DEVICE_ENABLED;
dev_info(&tz->device->dev, "registered as thermal_zone%d\n",
tz->thermal_zone->id);
diff --git a/drivers/platform/x86/acerhdf.c b/drivers/platform/x86/acerhdf.c
index 8cc86f4e3ac1..830a8b060e74 100644
--- a/drivers/platform/x86/acerhdf.c
+++ b/drivers/platform/x86/acerhdf.c
@@ -68,6 +68,7 @@ static int kernelmode = 1;
#else
static int kernelmode;
#endif
+static enum thermal_device_mode thermal_mode;
static unsigned int interval = 10;
static unsigned int fanon = 60000;
@@ -397,6 +398,7 @@ static inline void acerhdf_revert_to_bios_mode(void)
{
acerhdf_change_fanstate(ACERHDF_FAN_AUTO);
kernelmode = 0;
+ thermal_mode = THERMAL_DEVICE_DISABLED;
if (thz_dev)
thz_dev->polling_delay = 0;
pr_notice("kernel mode fan control OFF\n");
@@ -404,6 +406,7 @@ static inline void acerhdf_revert_to_bios_mode(void)
static inline void acerhdf_enable_kernelmode(void)
{
kernelmode = 1;
+ thermal_mode = THERMAL_DEVICE_ENABLED;
thz_dev->polling_delay = interval*1000;
thermal_zone_device_update(thz_dev, THERMAL_EVENT_UNSPECIFIED);
@@ -416,8 +419,7 @@ static int acerhdf_get_mode(struct thermal_zone_device *thermal,
if (verbose)
pr_notice("kernel mode fan control %d\n", kernelmode);
- *mode = (kernelmode) ? THERMAL_DEVICE_ENABLED
- : THERMAL_DEVICE_DISABLED;
+ *mode = thermal_mode;
return 0;
}
@@ -739,6 +741,8 @@ static int __init acerhdf_register_thermal(void)
if (IS_ERR(cl_dev))
return -EINVAL;
+ thermal_mode = kernelmode ?
+ THERMAL_DEVICE_ENABLED : THERMAL_DEVICE_DISABLED;
thz_dev = thermal_zone_device_register("acerhdf", 2, 0, NULL,
&acerhdf_dev_ops,
&acerhdf_zone_params, 0,
diff --git a/drivers/thermal/intel/int340x_thermal/int3400_thermal.c b/drivers/thermal/intel/int340x_thermal/int3400_thermal.c
index 0b3a62655843..e84faaadff87 100644
--- a/drivers/thermal/intel/int340x_thermal/int3400_thermal.c
+++ b/drivers/thermal/intel/int340x_thermal/int3400_thermal.c
@@ -48,7 +48,7 @@ struct int3400_thermal_priv {
struct acpi_device *adev;
struct platform_device *pdev;
struct thermal_zone_device *thermal;
- int mode;
+ enum thermal_device_mode mode;
int art_count;
struct art *arts;
int trt_count;
@@ -395,24 +395,20 @@ static int int3400_thermal_set_mode(struct thermal_zone_device *thermal,
enum thermal_device_mode mode)
{
struct int3400_thermal_priv *priv = thermal->devdata;
- bool enable;
int result = 0;
if (!priv)
return -EINVAL;
- if (mode == THERMAL_DEVICE_ENABLED)
- enable = true;
- else if (mode == THERMAL_DEVICE_DISABLED)
- enable = false;
- else
+ if (mode != THERMAL_DEVICE_ENABLED &&
+ mode != THERMAL_DEVICE_DISABLED)
return -EINVAL;
- if (enable != priv->mode) {
- priv->mode = enable;
+ if (mode != priv->mode) {
+ priv->mode = mode;
result = int3400_thermal_run_osc(priv->adev->handle,
- priv->current_uuid_index,
- enable);
+ priv->current_uuid_index,
+ mode == THERMAL_DEVICE_ENABLED);
}
evaluate_odvp(priv);
--
2.17.1
Polling DISABLED devices is not desired, as all such "disabled" devices
are meant to be handled by userspace. This patch introduces and uses
should_stop_polling() to decide whether the device should be polled or not.
Signed-off-by: Andrzej Pietrasiewicz <[email protected]>
---
drivers/thermal/thermal_core.c | 16 ++++++++++++++--
1 file changed, 14 insertions(+), 2 deletions(-)
diff --git a/drivers/thermal/thermal_core.c b/drivers/thermal/thermal_core.c
index 14baf0288759..e9c0b990e4a9 100644
--- a/drivers/thermal/thermal_core.c
+++ b/drivers/thermal/thermal_core.c
@@ -301,13 +301,22 @@ static void thermal_zone_device_set_polling(struct thermal_zone_device *tz,
cancel_delayed_work(&tz->poll_queue);
}
+static inline bool should_stop_polling(struct thermal_zone_device *tz)
+{
+ return !thermal_zone_device_is_enabled(tz);
+}
+
static void monitor_thermal_zone(struct thermal_zone_device *tz)
{
+ bool stop;
+
+ stop = should_stop_polling(tz);
+
mutex_lock(&tz->lock);
- if (tz->passive)
+ if (!stop && tz->passive)
thermal_zone_device_set_polling(tz, tz->passive_delay);
- else if (tz->polling_delay)
+ else if (!stop && tz->polling_delay)
thermal_zone_device_set_polling(tz, tz->polling_delay);
else
thermal_zone_device_set_polling(tz, 0);
@@ -517,6 +526,9 @@ void thermal_zone_device_update(struct thermal_zone_device *tz,
{
int count;
+ if (should_stop_polling(tz))
+ return;
+
if (atomic_read(&in_suspend))
return;
--
2.17.1
The acpi_thermal_register_thermal_zone() is missing any error handling.
This needs to be fixed.
Signed-off-by: Andrzej Pietrasiewicz <[email protected]>
---
drivers/acpi/thermal.c | 20 ++++++++++++++++----
1 file changed, 16 insertions(+), 4 deletions(-)
diff --git a/drivers/acpi/thermal.c b/drivers/acpi/thermal.c
index 19067a5e5293..6de8066ca1e7 100644
--- a/drivers/acpi/thermal.c
+++ b/drivers/acpi/thermal.c
@@ -901,23 +901,35 @@ static int acpi_thermal_register_thermal_zone(struct acpi_thermal *tz)
result = sysfs_create_link(&tz->device->dev.kobj,
&tz->thermal_zone->device.kobj, "thermal_zone");
if (result)
- return result;
+ goto unregister_tzd;
result = sysfs_create_link(&tz->thermal_zone->device.kobj,
&tz->device->dev.kobj, "device");
if (result)
- return result;
+ goto remove_tz_link;
status = acpi_bus_attach_private_data(tz->device->handle,
tz->thermal_zone);
- if (ACPI_FAILURE(status))
- return -ENODEV;
+ if (ACPI_FAILURE(status)) {
+ result = -ENODEV;
+ goto remove_dev_link;
+ }
tz->tz_enabled = 1;
dev_info(&tz->device->dev, "registered as thermal_zone%d\n",
tz->thermal_zone->id);
+
return 0;
+
+remove_dev_link:
+ sysfs_remove_link(&tz->thermal_zone->device.kobj, "device");
+remove_tz_link:
+ sysfs_remove_link(&tz->device->dev.kobj, "thermal_zone");
+unregister_tzd:
+ thermal_zone_device_unregister(tz->thermal_zone);
+
+ return result;
}
static void acpi_thermal_unregister_thermal_zone(struct acpi_thermal *tz)
--
2.17.1
Prepare for making the drivers not access tzd's private members.
Signed-off-by: Andrzej Pietrasiewicz <[email protected]>
---
drivers/thermal/thermal_core.c | 53 ++++++++++++++++++++++++++++++++++
include/linux/thermal.h | 13 +++++++++
2 files changed, 66 insertions(+)
diff --git a/drivers/thermal/thermal_core.c b/drivers/thermal/thermal_core.c
index 14d3b1b94c4f..f2a5c5ee3455 100644
--- a/drivers/thermal/thermal_core.c
+++ b/drivers/thermal/thermal_core.c
@@ -459,6 +459,59 @@ static void thermal_zone_device_reset(struct thermal_zone_device *tz)
thermal_zone_device_init(tz);
}
+int thermal_zone_device_set_mode(struct thermal_zone_device *tz,
+ enum thermal_device_mode mode)
+{
+ int ret = 0;
+
+ mutex_lock(&tz->lock);
+
+ /* do nothing if mode isn't changing */
+ if (mode == tz->mode) {
+ mutex_unlock(&tz->lock);
+
+ return ret;
+ }
+
+ if (tz->ops->set_mode)
+ ret = tz->ops->set_mode(tz, mode);
+
+ if (!ret)
+ tz->mode = mode;
+
+ mutex_unlock(&tz->lock);
+
+ thermal_zone_device_update(tz, THERMAL_EVENT_UNSPECIFIED);
+
+ return ret;
+}
+
+int thermal_zone_device_enable(struct thermal_zone_device *tz)
+{
+ return thermal_zone_device_set_mode(tz, THERMAL_DEVICE_ENABLED);
+}
+EXPORT_SYMBOL(thermal_zone_device_enable);
+
+int thermal_zone_device_disable(struct thermal_zone_device *tz)
+{
+ return thermal_zone_device_set_mode(tz, THERMAL_DEVICE_DISABLED);
+}
+EXPORT_SYMBOL(thermal_zone_device_disable);
+
+int thermal_zone_device_is_enabled(struct thermal_zone_device *tz)
+{
+ enum thermal_device_mode mode;
+
+ mutex_lock(&tz->lock);
+
+ mode = tz->mode;
+
+ mutex_unlock(&tz->lock);
+
+ return mode == THERMAL_DEVICE_ENABLED;
+}
+EXPORT_SYMBOL(thermal_zone_device_is_enabled);
+
void thermal_zone_device_update(struct thermal_zone_device *tz,
enum thermal_notify_event event)
{
diff --git a/include/linux/thermal.h b/include/linux/thermal.h
index a808f6fa2777..df013c39ba9b 100644
--- a/include/linux/thermal.h
+++ b/include/linux/thermal.h
@@ -416,6 +416,9 @@ int thermal_zone_get_offset(struct thermal_zone_device *tz);
void thermal_cdev_update(struct thermal_cooling_device *);
void thermal_notify_framework(struct thermal_zone_device *, int);
+int thermal_zone_device_enable(struct thermal_zone_device *tz);
+int thermal_zone_device_disable(struct thermal_zone_device *tz);
+int thermal_zone_device_is_enabled(struct thermal_zone_device *tz);
#else
static inline struct thermal_zone_device *thermal_zone_device_register(
const char *type, int trips, int mask, void *devdata,
@@ -463,6 +466,16 @@ static inline void thermal_cdev_update(struct thermal_cooling_device *cdev)
static inline void thermal_notify_framework(struct thermal_zone_device *tz,
int trip)
{ }
+
+static inline int thermal_zone_device_enable(struct thermal_zone_device *tz)
+{ return -ENODEV; }
+
+static inline int thermal_zone_device_disable(struct thermal_zone_device *tz)
+{ return -ENODEV; }
+
+static inline int
+thermal_zone_device_is_enabled(struct thermal_zone_device *tz)
+{ return -ENODEV; }
#endif /* CONFIG_THERMAL */
#endif /* __THERMAL_H__ */
--
2.17.1
Setting polling_delay is now done at thermal_core level (by not polling
DISABLED devices), so no need to repeat this code.
int340x: Checking for an impossible enum value is unnecessary.
acpi/thermal: It only prints debug messages.
Signed-off-by: Andrzej Pietrasiewicz <[email protected]>
---
drivers/acpi/thermal.c | 26 ----------------
.../ethernet/mellanox/mlxsw/core_thermal.c | 30 -------------------
drivers/platform/x86/acerhdf.c | 3 --
drivers/thermal/imx_thermal.c | 6 ----
.../intel/int340x_thermal/int3400_thermal.c | 4 ---
drivers/thermal/thermal_of.c | 18 -----------
6 files changed, 87 deletions(-)
diff --git a/drivers/acpi/thermal.c b/drivers/acpi/thermal.c
index 52b6cda1bcc3..29a2b73fe035 100644
--- a/drivers/acpi/thermal.c
+++ b/drivers/acpi/thermal.c
@@ -525,31 +525,6 @@ static int thermal_get_temp(struct thermal_zone_device *thermal, int *temp)
return 0;
}
-static int thermal_set_mode(struct thermal_zone_device *thermal,
- enum thermal_device_mode mode)
-{
- struct acpi_thermal *tz = thermal->devdata;
-
- if (!tz)
- return -EINVAL;
-
- if (mode != THERMAL_DEVICE_DISABLED &&
- mode != THERMAL_DEVICE_ENABLED)
- return -EINVAL;
- /*
- * enable/disable thermal management from ACPI thermal driver
- */
- if (mode == THERMAL_DEVICE_DISABLED)
- pr_warn("thermal zone will be disabled\n");
-
- ACPI_DEBUG_PRINT((ACPI_DB_INFO,
- "%s kernel ACPI thermal control\n",
- mode == THERMAL_DEVICE_ENABLED ?
- "Enable" : "Disable"));
-
- return 0;
-}
-
static int thermal_get_trip_type(struct thermal_zone_device *thermal,
int trip, enum thermal_trip_type *type)
{
@@ -836,7 +811,6 @@ static struct thermal_zone_device_ops acpi_thermal_zone_ops = {
.bind = acpi_thermal_bind_cooling_device,
.unbind = acpi_thermal_unbind_cooling_device,
.get_temp = thermal_get_temp,
- .set_mode = thermal_set_mode,
.get_trip_type = thermal_get_trip_type,
.get_trip_temp = thermal_get_trip_temp,
.get_crit_temp = thermal_get_crit_temp,
diff --git a/drivers/net/ethernet/mellanox/mlxsw/core_thermal.c b/drivers/net/ethernet/mellanox/mlxsw/core_thermal.c
index e1d800be8bb4..c7f334383912 100644
--- a/drivers/net/ethernet/mellanox/mlxsw/core_thermal.c
+++ b/drivers/net/ethernet/mellanox/mlxsw/core_thermal.c
@@ -275,19 +275,6 @@ static int mlxsw_thermal_unbind(struct thermal_zone_device *tzdev,
return 0;
}
-static int mlxsw_thermal_set_mode(struct thermal_zone_device *tzdev,
- enum thermal_device_mode mode)
-{
- struct mlxsw_thermal *thermal = tzdev->devdata;
-
- if (mode == THERMAL_DEVICE_ENABLED)
- tzdev->polling_delay = thermal->polling_delay;
- else
- tzdev->polling_delay = 0;
-
- return 0;
-}
-
static int mlxsw_thermal_get_temp(struct thermal_zone_device *tzdev,
int *p_temp)
{
@@ -388,7 +375,6 @@ static int mlxsw_thermal_trend_get(struct thermal_zone_device *tzdev,
static struct thermal_zone_device_ops mlxsw_thermal_ops = {
.bind = mlxsw_thermal_bind,
.unbind = mlxsw_thermal_unbind,
- .set_mode = mlxsw_thermal_set_mode,
.get_temp = mlxsw_thermal_get_temp,
.get_trip_type = mlxsw_thermal_get_trip_type,
.get_trip_temp = mlxsw_thermal_get_trip_temp,
@@ -446,20 +432,6 @@ static int mlxsw_thermal_module_unbind(struct thermal_zone_device *tzdev,
return err;
}
-static int mlxsw_thermal_module_mode_set(struct thermal_zone_device *tzdev,
- enum thermal_device_mode mode)
-{
- struct mlxsw_thermal_module *tz = tzdev->devdata;
- struct mlxsw_thermal *thermal = tz->parent;
-
- if (mode == THERMAL_DEVICE_ENABLED)
- tzdev->polling_delay = thermal->polling_delay;
- else
- tzdev->polling_delay = 0;
-
- return 0;
-}
-
static int mlxsw_thermal_module_temp_get(struct thermal_zone_device *tzdev,
int *p_temp)
{
@@ -559,7 +531,6 @@ mlxsw_thermal_module_trip_hyst_set(struct thermal_zone_device *tzdev, int trip,
static struct thermal_zone_device_ops mlxsw_thermal_module_ops = {
.bind = mlxsw_thermal_module_bind,
.unbind = mlxsw_thermal_module_unbind,
- .set_mode = mlxsw_thermal_module_mode_set,
.get_temp = mlxsw_thermal_module_temp_get,
.get_trip_type = mlxsw_thermal_module_trip_type_get,
.get_trip_temp = mlxsw_thermal_module_trip_temp_get,
@@ -597,7 +568,6 @@ static int mlxsw_thermal_gearbox_temp_get(struct thermal_zone_device *tzdev,
static struct thermal_zone_device_ops mlxsw_thermal_gearbox_ops = {
.bind = mlxsw_thermal_module_bind,
.unbind = mlxsw_thermal_module_unbind,
- .set_mode = mlxsw_thermal_module_mode_set,
.get_temp = mlxsw_thermal_gearbox_temp_get,
.get_trip_type = mlxsw_thermal_module_trip_type_get,
.get_trip_temp = mlxsw_thermal_module_trip_temp_get,
diff --git a/drivers/platform/x86/acerhdf.c b/drivers/platform/x86/acerhdf.c
index 3efe749dc5a0..d33a70af0869 100644
--- a/drivers/platform/x86/acerhdf.c
+++ b/drivers/platform/x86/acerhdf.c
@@ -397,8 +397,6 @@ static inline void acerhdf_revert_to_bios_mode(void)
{
acerhdf_change_fanstate(ACERHDF_FAN_AUTO);
kernelmode = 0;
- if (thz_dev)
- thz_dev->polling_delay = 0;
pr_notice("kernel mode fan control OFF\n");
}
@@ -406,7 +404,6 @@ static inline void acerhdf_enable_kernelmode(void)
{
kernelmode = 1;
- thz_dev->polling_delay = interval*1000;
pr_notice("kernel mode fan control ON\n");
}
diff --git a/drivers/thermal/imx_thermal.c b/drivers/thermal/imx_thermal.c
index 53abb1be1cba..a02398118d88 100644
--- a/drivers/thermal/imx_thermal.c
+++ b/drivers/thermal/imx_thermal.c
@@ -338,9 +338,6 @@ static int imx_set_mode(struct thermal_zone_device *tz,
const struct thermal_soc_data *soc_data = data->socdata;
if (mode == THERMAL_DEVICE_ENABLED) {
- tz->polling_delay = IMX_POLLING_DELAY;
- tz->passive_delay = IMX_PASSIVE_DELAY;
-
regmap_write(map, soc_data->sensor_ctrl + REG_CLR,
soc_data->power_down_mask);
regmap_write(map, soc_data->sensor_ctrl + REG_SET,
@@ -356,9 +353,6 @@ static int imx_set_mode(struct thermal_zone_device *tz,
regmap_write(map, soc_data->sensor_ctrl + REG_SET,
soc_data->power_down_mask);
- tz->polling_delay = 0;
- tz->passive_delay = 0;
-
if (data->irq_enabled) {
disable_irq(data->irq);
data->irq_enabled = false;
diff --git a/drivers/thermal/intel/int340x_thermal/int3400_thermal.c b/drivers/thermal/intel/int340x_thermal/int3400_thermal.c
index 8e8c9af7e5f4..9af862ab9f65 100644
--- a/drivers/thermal/intel/int340x_thermal/int3400_thermal.c
+++ b/drivers/thermal/intel/int340x_thermal/int3400_thermal.c
@@ -386,10 +386,6 @@ static int int3400_thermal_set_mode(struct thermal_zone_device *thermal,
if (!priv)
return -EINVAL;
- if (mode != THERMAL_DEVICE_ENABLED &&
- mode != THERMAL_DEVICE_DISABLED)
- return -EINVAL;
-
if (mode != thermal->mode)
result = int3400_thermal_run_osc(priv->adev->handle,
priv->current_uuid_index,
diff --git a/drivers/thermal/thermal_of.c b/drivers/thermal/thermal_of.c
index 011fd7f0a01e..8a6272570347 100644
--- a/drivers/thermal/thermal_of.c
+++ b/drivers/thermal/thermal_of.c
@@ -267,22 +267,6 @@ static int of_thermal_unbind(struct thermal_zone_device *thermal,
return 0;
}
-static int of_thermal_set_mode(struct thermal_zone_device *tz,
- enum thermal_device_mode mode)
-{
- struct __thermal_zone *data = tz->devdata;
-
- if (mode == THERMAL_DEVICE_ENABLED) {
- tz->polling_delay = data->polling_delay;
- tz->passive_delay = data->passive_delay;
- } else {
- tz->polling_delay = 0;
- tz->passive_delay = 0;
- }
-
- return 0;
-}
-
static int of_thermal_get_trip_type(struct thermal_zone_device *tz, int trip,
enum thermal_trip_type *type)
{
@@ -374,8 +358,6 @@ static int of_thermal_get_crit_temp(struct thermal_zone_device *tz,
}
static struct thermal_zone_device_ops of_thermal_ops = {
- .set_mode = of_thermal_set_mode,
-
.get_trip_type = of_thermal_get_trip_type,
.get_trip_temp = of_thermal_get_trip_temp,
.set_trip_temp = of_thermal_set_trip_temp,
--
2.17.1
get_mode() is now redundant, as the state is stored in struct
thermal_zone_device.
Consequently the "mode" attribute in sysfs can always be visible, because
it is always possible to get the mode from struct tzd.
Signed-off-by: Andrzej Pietrasiewicz <[email protected]>
---
drivers/acpi/thermal.c | 9 ------
.../ethernet/mellanox/mlxsw/core_thermal.c | 19 ------------
drivers/platform/x86/acerhdf.c | 12 --------
drivers/thermal/da9062-thermal.c | 8 -----
drivers/thermal/imx_thermal.c | 9 ------
.../intel/int340x_thermal/int3400_thermal.c | 9 ------
.../thermal/intel/intel_quark_dts_thermal.c | 8 -----
drivers/thermal/thermal_core.c | 7 +----
drivers/thermal/thermal_of.c | 9 ------
drivers/thermal/thermal_sysfs.c | 30 ++-----------------
include/linux/thermal.h | 2 --
11 files changed, 3 insertions(+), 119 deletions(-)
diff --git a/drivers/acpi/thermal.c b/drivers/acpi/thermal.c
index 4ba273f49d87..592be97c4456 100644
--- a/drivers/acpi/thermal.c
+++ b/drivers/acpi/thermal.c
@@ -525,14 +525,6 @@ static int thermal_get_temp(struct thermal_zone_device *thermal, int *temp)
return 0;
}
-static int thermal_get_mode(struct thermal_zone_device *thermal,
- enum thermal_device_mode *mode)
-{
- *mode = thermal->mode;
-
- return 0;
-}
-
static int thermal_set_mode(struct thermal_zone_device *thermal,
enum thermal_device_mode mode)
{
@@ -847,7 +839,6 @@ static struct thermal_zone_device_ops acpi_thermal_zone_ops = {
.bind = acpi_thermal_bind_cooling_device,
.unbind = acpi_thermal_unbind_cooling_device,
.get_temp = thermal_get_temp,
- .get_mode = thermal_get_mode,
.set_mode = thermal_set_mode,
.get_trip_type = thermal_get_trip_type,
.get_trip_temp = thermal_get_trip_temp,
diff --git a/drivers/net/ethernet/mellanox/mlxsw/core_thermal.c b/drivers/net/ethernet/mellanox/mlxsw/core_thermal.c
index aa082e8a0b13..6e26678ac312 100644
--- a/drivers/net/ethernet/mellanox/mlxsw/core_thermal.c
+++ b/drivers/net/ethernet/mellanox/mlxsw/core_thermal.c
@@ -275,14 +275,6 @@ static int mlxsw_thermal_unbind(struct thermal_zone_device *tzdev,
return 0;
}
-static int mlxsw_thermal_get_mode(struct thermal_zone_device *tzdev,
- enum thermal_device_mode *mode)
-{
- *mode = tzdev->mode;
-
- return 0;
-}
-
static int mlxsw_thermal_set_mode(struct thermal_zone_device *tzdev,
enum thermal_device_mode mode)
{
@@ -403,7 +395,6 @@ static int mlxsw_thermal_trend_get(struct thermal_zone_device *tzdev,
static struct thermal_zone_device_ops mlxsw_thermal_ops = {
.bind = mlxsw_thermal_bind,
.unbind = mlxsw_thermal_unbind,
- .get_mode = mlxsw_thermal_get_mode,
.set_mode = mlxsw_thermal_set_mode,
.get_temp = mlxsw_thermal_get_temp,
.get_trip_type = mlxsw_thermal_get_trip_type,
@@ -462,14 +453,6 @@ static int mlxsw_thermal_module_unbind(struct thermal_zone_device *tzdev,
return err;
}
-static int mlxsw_thermal_module_mode_get(struct thermal_zone_device *tzdev,
- enum thermal_device_mode *mode)
-{
- *mode = tzdev->mode;
-
- return 0;
-}
-
static int mlxsw_thermal_module_mode_set(struct thermal_zone_device *tzdev,
enum thermal_device_mode mode)
{
@@ -591,7 +574,6 @@ mlxsw_thermal_module_trip_hyst_set(struct thermal_zone_device *tzdev, int trip,
static struct thermal_zone_device_ops mlxsw_thermal_module_ops = {
.bind = mlxsw_thermal_module_bind,
.unbind = mlxsw_thermal_module_unbind,
- .get_mode = mlxsw_thermal_module_mode_get,
.set_mode = mlxsw_thermal_module_mode_set,
.get_temp = mlxsw_thermal_module_temp_get,
.get_trip_type = mlxsw_thermal_module_trip_type_get,
@@ -630,7 +612,6 @@ static int mlxsw_thermal_gearbox_temp_get(struct thermal_zone_device *tzdev,
static struct thermal_zone_device_ops mlxsw_thermal_gearbox_ops = {
.bind = mlxsw_thermal_module_bind,
.unbind = mlxsw_thermal_module_unbind,
- .get_mode = mlxsw_thermal_module_mode_get,
.set_mode = mlxsw_thermal_module_mode_set,
.get_temp = mlxsw_thermal_gearbox_temp_get,
.get_trip_type = mlxsw_thermal_module_trip_type_get,
diff --git a/drivers/platform/x86/acerhdf.c b/drivers/platform/x86/acerhdf.c
index 97b288485837..32c5fe16b7f7 100644
--- a/drivers/platform/x86/acerhdf.c
+++ b/drivers/platform/x86/acerhdf.c
@@ -413,17 +413,6 @@ static inline void acerhdf_enable_kernelmode(void)
pr_notice("kernel mode fan control ON\n");
}
-static int acerhdf_get_mode(struct thermal_zone_device *thermal,
- enum thermal_device_mode *mode)
-{
- if (verbose)
- pr_notice("kernel mode fan control %d\n", kernelmode);
-
- *mode = thermal->mode;
-
- return 0;
-}
-
/*
* set operation mode;
* enabled: the thermal layer of the kernel takes care about
@@ -490,7 +479,6 @@ static struct thermal_zone_device_ops acerhdf_dev_ops = {
.bind = acerhdf_bind,
.unbind = acerhdf_unbind,
.get_temp = acerhdf_get_ec_temp,
- .get_mode = acerhdf_get_mode,
.set_mode = acerhdf_set_mode,
.get_trip_type = acerhdf_get_trip_type,
.get_trip_hyst = acerhdf_get_trip_hyst,
diff --git a/drivers/thermal/da9062-thermal.c b/drivers/thermal/da9062-thermal.c
index a14c7981c7c7..a7ac8afb063e 100644
--- a/drivers/thermal/da9062-thermal.c
+++ b/drivers/thermal/da9062-thermal.c
@@ -120,13 +120,6 @@ static irqreturn_t da9062_thermal_irq_handler(int irq, void *data)
return IRQ_HANDLED;
}
-static int da9062_thermal_get_mode(struct thermal_zone_device *z,
- enum thermal_device_mode *mode)
-{
- *mode = z->mode;
- return 0;
-}
-
static int da9062_thermal_get_trip_type(struct thermal_zone_device *z,
int trip,
enum thermal_trip_type *type)
@@ -179,7 +172,6 @@ static int da9062_thermal_get_temp(struct thermal_zone_device *z,
static struct thermal_zone_device_ops da9062_thermal_ops = {
.get_temp = da9062_thermal_get_temp,
- .get_mode = da9062_thermal_get_mode,
.get_trip_type = da9062_thermal_get_trip_type,
.get_trip_temp = da9062_thermal_get_trip_temp,
};
diff --git a/drivers/thermal/imx_thermal.c b/drivers/thermal/imx_thermal.c
index 9a1114d721b6..2c7ee5da608a 100644
--- a/drivers/thermal/imx_thermal.c
+++ b/drivers/thermal/imx_thermal.c
@@ -330,14 +330,6 @@ static int imx_get_temp(struct thermal_zone_device *tz, int *temp)
return 0;
}
-static int imx_get_mode(struct thermal_zone_device *tz,
- enum thermal_device_mode *mode)
-{
- *mode = tz->mode;
-
- return 0;
-}
-
static int imx_set_mode(struct thermal_zone_device *tz,
enum thermal_device_mode mode)
{
@@ -464,7 +456,6 @@ static struct thermal_zone_device_ops imx_tz_ops = {
.bind = imx_bind,
.unbind = imx_unbind,
.get_temp = imx_get_temp,
- .get_mode = imx_get_mode,
.set_mode = imx_set_mode,
.get_trip_type = imx_get_trip_type,
.get_trip_temp = imx_get_trip_temp,
diff --git a/drivers/thermal/intel/int340x_thermal/int3400_thermal.c b/drivers/thermal/intel/int340x_thermal/int3400_thermal.c
index f65b2fc09198..9a622aaf29dd 100644
--- a/drivers/thermal/intel/int340x_thermal/int3400_thermal.c
+++ b/drivers/thermal/intel/int340x_thermal/int3400_thermal.c
@@ -377,14 +377,6 @@ static int int3400_thermal_get_temp(struct thermal_zone_device *thermal,
return 0;
}
-static int int3400_thermal_get_mode(struct thermal_zone_device *thermal,
- enum thermal_device_mode *mode)
-{
- *mode = thermal->mode;
-
- return 0;
-}
-
static int int3400_thermal_set_mode(struct thermal_zone_device *thermal,
enum thermal_device_mode mode)
{
@@ -412,7 +404,6 @@ static int int3400_thermal_set_mode(struct thermal_zone_device *thermal,
static struct thermal_zone_device_ops int3400_thermal_ops = {
.get_temp = int3400_thermal_get_temp,
- .get_mode = int3400_thermal_get_mode,
.set_mode = int3400_thermal_set_mode,
};
diff --git a/drivers/thermal/intel/intel_quark_dts_thermal.c b/drivers/thermal/intel/intel_quark_dts_thermal.c
index d77cb3df5ade..c4879b4bfbf1 100644
--- a/drivers/thermal/intel/intel_quark_dts_thermal.c
+++ b/drivers/thermal/intel/intel_quark_dts_thermal.c
@@ -308,13 +308,6 @@ static int sys_get_curr_temp(struct thermal_zone_device *tzd,
return 0;
}
-static int sys_get_mode(struct thermal_zone_device *tzd,
- enum thermal_device_mode *mode)
-{
- *mode = tzd->mode;
- return 0;
-}
-
static int sys_set_mode(struct thermal_zone_device *tzd,
enum thermal_device_mode mode)
{
@@ -336,7 +329,6 @@ static struct thermal_zone_device_ops tzone_ops = {
.get_trip_type = sys_get_trip_type,
.set_trip_temp = sys_set_trip_temp,
.get_crit_temp = sys_get_crit_temp,
- .get_mode = sys_get_mode,
.set_mode = sys_set_mode,
};
diff --git a/drivers/thermal/thermal_core.c b/drivers/thermal/thermal_core.c
index b71196eaf90e..14d3b1b94c4f 100644
--- a/drivers/thermal/thermal_core.c
+++ b/drivers/thermal/thermal_core.c
@@ -1456,7 +1456,6 @@ static int thermal_pm_notify(struct notifier_block *nb,
unsigned long mode, void *_unused)
{
struct thermal_zone_device *tz;
- enum thermal_device_mode tz_mode;
switch (mode) {
case PM_HIBERNATION_PREPARE:
@@ -1469,11 +1468,7 @@ static int thermal_pm_notify(struct notifier_block *nb,
case PM_POST_SUSPEND:
atomic_set(&in_suspend, 0);
list_for_each_entry(tz, &thermal_tz_list, node) {
- tz_mode = THERMAL_DEVICE_ENABLED;
- if (tz->ops->get_mode)
- tz->ops->get_mode(tz, &tz_mode);
-
- if (tz_mode == THERMAL_DEVICE_DISABLED)
+ if (tz->mode == THERMAL_DEVICE_DISABLED)
continue;
thermal_zone_device_init(tz);
diff --git a/drivers/thermal/thermal_of.c b/drivers/thermal/thermal_of.c
index c495b1e48ef2..ba65d48a48cb 100644
--- a/drivers/thermal/thermal_of.c
+++ b/drivers/thermal/thermal_of.c
@@ -267,14 +267,6 @@ static int of_thermal_unbind(struct thermal_zone_device *thermal,
return 0;
}
-static int of_thermal_get_mode(struct thermal_zone_device *tz,
- enum thermal_device_mode *mode)
-{
- *mode = tz->mode;
-
- return 0;
-}
-
static int of_thermal_set_mode(struct thermal_zone_device *tz,
enum thermal_device_mode mode)
{
@@ -389,7 +381,6 @@ static int of_thermal_get_crit_temp(struct thermal_zone_device *tz,
}
static struct thermal_zone_device_ops of_thermal_ops = {
- .get_mode = of_thermal_get_mode,
.set_mode = of_thermal_set_mode,
.get_trip_type = of_thermal_get_trip_type,
diff --git a/drivers/thermal/thermal_sysfs.c b/drivers/thermal/thermal_sysfs.c
index aa99edb4dff7..096370977068 100644
--- a/drivers/thermal/thermal_sysfs.c
+++ b/drivers/thermal/thermal_sysfs.c
@@ -49,18 +49,9 @@ static ssize_t
mode_show(struct device *dev, struct device_attribute *attr, char *buf)
{
struct thermal_zone_device *tz = to_thermal_zone(dev);
- enum thermal_device_mode mode;
- int result;
-
- if (!tz->ops->get_mode)
- return -EPERM;
- result = tz->ops->get_mode(tz, &mode);
- if (result)
- return result;
-
- return sprintf(buf, "%s\n", mode == THERMAL_DEVICE_ENABLED ? "enabled"
- : "disabled");
+ return sprintf(buf, "%s\n", tz->mode == THERMAL_DEVICE_ENABLED ?
+ "enabled" : "disabled");
}
static ssize_t
@@ -428,30 +419,13 @@ static struct attribute_group thermal_zone_attribute_group = {
.attrs = thermal_zone_dev_attrs,
};
-/* We expose mode only if .get_mode is present */
static struct attribute *thermal_zone_mode_attrs[] = {
&dev_attr_mode.attr,
NULL,
};
-static umode_t thermal_zone_mode_is_visible(struct kobject *kobj,
- struct attribute *attr,
- int attrno)
-{
- struct device *dev = container_of(kobj, struct device, kobj);
- struct thermal_zone_device *tz;
-
- tz = container_of(dev, struct thermal_zone_device, device);
-
- if (tz->ops->get_mode)
- return attr->mode;
-
- return 0;
-}
-
static struct attribute_group thermal_zone_mode_attribute_group = {
.attrs = thermal_zone_mode_attrs,
- .is_visible = thermal_zone_mode_is_visible,
};
/* We expose passive only if passive trips are present */
diff --git a/include/linux/thermal.h b/include/linux/thermal.h
index 5f91d7f04512..a808f6fa2777 100644
--- a/include/linux/thermal.h
+++ b/include/linux/thermal.h
@@ -76,8 +76,6 @@ struct thermal_zone_device_ops {
struct thermal_cooling_device *);
int (*get_temp) (struct thermal_zone_device *, int *);
int (*set_trips) (struct thermal_zone_device *, int, int);
- int (*get_mode) (struct thermal_zone_device *,
- enum thermal_device_mode *);
int (*set_mode) (struct thermal_zone_device *,
enum thermal_device_mode);
int (*get_trip_type) (struct thermal_zone_device *, int,
--
2.17.1
On Thu, May 28, 2020 at 09:20:42PM +0200, Andrzej Pietrasiewicz wrote:
> Prepare for storing mode in struct thermal_zone_device.
>
> Signed-off-by: Andrzej Pietrasiewicz <[email protected]>
> ---
> drivers/acpi/thermal.c | 27 +++++++++----------
> drivers/platform/x86/acerhdf.c | 8 ++++--
> .../intel/int340x_thermal/int3400_thermal.c | 18 +++++--------
> 3 files changed, 25 insertions(+), 28 deletions(-)
>
> diff --git a/drivers/acpi/thermal.c b/drivers/acpi/thermal.c
> index 6de8066ca1e7..fb46070c66d8 100644
> --- a/drivers/acpi/thermal.c
> +++ b/drivers/acpi/thermal.c
> @@ -172,7 +172,7 @@ struct acpi_thermal {
> struct acpi_thermal_trips trips;
> struct acpi_handle_list devices;
> struct thermal_zone_device *thermal_zone;
> - int tz_enabled;
> + enum thermal_device_mode mode;
> int kelvin_offset; /* in millidegrees */
> struct work_struct thermal_check_work;
> };
> @@ -500,7 +500,7 @@ static void acpi_thermal_check(void *data)
> {
> struct acpi_thermal *tz = data;
>
> - if (!tz->tz_enabled)
> + if (tz->mode != THERMAL_DEVICE_ENABLED)
> return;
>
> thermal_zone_device_update(tz->thermal_zone,
> @@ -534,8 +534,7 @@ static int thermal_get_mode(struct thermal_zone_device *thermal,
> if (!tz)
> return -EINVAL;
>
> - *mode = tz->tz_enabled ? THERMAL_DEVICE_ENABLED :
> - THERMAL_DEVICE_DISABLED;
> + *mode = tz->mode;
>
> return 0;
> }
> @@ -544,27 +543,25 @@ static int thermal_set_mode(struct thermal_zone_device *thermal,
> enum thermal_device_mode mode)
> {
> struct acpi_thermal *tz = thermal->devdata;
> - int enable;
>
> if (!tz)
> return -EINVAL;
>
> + if (mode != THERMAL_DEVICE_DISABLED &&
> + mode != THERMAL_DEVICE_ENABLED)
> + return -EINVAL;
Personally I find this check unnecessary: The enum has no other values,
and it is verifyable that the callers provide the enum and not some other
value.
> /*
> * enable/disable thermal management from ACPI thermal driver
> */
> - if (mode == THERMAL_DEVICE_ENABLED)
> - enable = 1;
> - else if (mode == THERMAL_DEVICE_DISABLED) {
> - enable = 0;
> + if (mode == THERMAL_DEVICE_DISABLED)
> pr_warn("thermal zone will be disabled\n");
> - } else
> - return -EINVAL;
>
> - if (enable != tz->tz_enabled) {
> - tz->tz_enabled = enable;
> + if (mode != tz->mode) {
> + tz->mode = mode;
> ACPI_DEBUG_PRINT((ACPI_DB_INFO,
> "%s kernel ACPI thermal control\n",
> - tz->tz_enabled ? "Enable" : "Disable"));
> + tz->mode == THERMAL_DEVICE_ENABLED ?
> + "Enable" : "Disable"));
> acpi_thermal_check(tz);
> }
> return 0;
> @@ -915,7 +912,7 @@ static int acpi_thermal_register_thermal_zone(struct acpi_thermal *tz)
> goto remove_dev_link;
> }
>
> - tz->tz_enabled = 1;
> + tz->mode = THERMAL_DEVICE_ENABLED;
>
> dev_info(&tz->device->dev, "registered as thermal_zone%d\n",
> tz->thermal_zone->id);
> diff --git a/drivers/platform/x86/acerhdf.c b/drivers/platform/x86/acerhdf.c
> index 8cc86f4e3ac1..830a8b060e74 100644
> --- a/drivers/platform/x86/acerhdf.c
> +++ b/drivers/platform/x86/acerhdf.c
> @@ -68,6 +68,7 @@ static int kernelmode = 1;
> #else
> static int kernelmode;
> #endif
> +static enum thermal_device_mode thermal_mode;
>
> static unsigned int interval = 10;
> static unsigned int fanon = 60000;
> @@ -397,6 +398,7 @@ static inline void acerhdf_revert_to_bios_mode(void)
> {
> acerhdf_change_fanstate(ACERHDF_FAN_AUTO);
> kernelmode = 0;
> + thermal_mode = THERMAL_DEVICE_DISABLED;
> if (thz_dev)
> thz_dev->polling_delay = 0;
> pr_notice("kernel mode fan control OFF\n");
> @@ -404,6 +406,7 @@ static inline void acerhdf_revert_to_bios_mode(void)
> static inline void acerhdf_enable_kernelmode(void)
> {
> kernelmode = 1;
> + thermal_mode = THERMAL_DEVICE_ENABLED;
>
> thz_dev->polling_delay = interval*1000;
> thermal_zone_device_update(thz_dev, THERMAL_EVENT_UNSPECIFIED);
> @@ -416,8 +419,7 @@ static int acerhdf_get_mode(struct thermal_zone_device *thermal,
> if (verbose)
> pr_notice("kernel mode fan control %d\n", kernelmode);
>
> - *mode = (kernelmode) ? THERMAL_DEVICE_ENABLED
> - : THERMAL_DEVICE_DISABLED;
> + *mode = thermal_mode;
>
> return 0;
> }
> @@ -739,6 +741,8 @@ static int __init acerhdf_register_thermal(void)
> if (IS_ERR(cl_dev))
> return -EINVAL;
>
> + thermal_mode = kernelmode ?
> + THERMAL_DEVICE_ENABLED : THERMAL_DEVICE_DISABLED;
> thz_dev = thermal_zone_device_register("acerhdf", 2, 0, NULL,
> &acerhdf_dev_ops,
> &acerhdf_zone_params, 0,
> diff --git a/drivers/thermal/intel/int340x_thermal/int3400_thermal.c b/drivers/thermal/intel/int340x_thermal/int3400_thermal.c
> index 0b3a62655843..e84faaadff87 100644
> --- a/drivers/thermal/intel/int340x_thermal/int3400_thermal.c
> +++ b/drivers/thermal/intel/int340x_thermal/int3400_thermal.c
> @@ -48,7 +48,7 @@ struct int3400_thermal_priv {
> struct acpi_device *adev;
> struct platform_device *pdev;
> struct thermal_zone_device *thermal;
> - int mode;
> + enum thermal_device_mode mode;
> int art_count;
> struct art *arts;
> int trt_count;
> @@ -395,24 +395,20 @@ static int int3400_thermal_set_mode(struct thermal_zone_device *thermal,
> enum thermal_device_mode mode)
> {
> struct int3400_thermal_priv *priv = thermal->devdata;
> - bool enable;
> int result = 0;
>
> if (!priv)
> return -EINVAL;
>
> - if (mode == THERMAL_DEVICE_ENABLED)
> - enable = true;
> - else if (mode == THERMAL_DEVICE_DISABLED)
> - enable = false;
> - else
> + if (mode != THERMAL_DEVICE_ENABLED &&
> + mode != THERMAL_DEVICE_DISABLED)
> return -EINVAL;
Same as above.
>
> - if (enable != priv->mode) {
> - priv->mode = enable;
> + if (mode != priv->mode) {
> + priv->mode = mode;
> result = int3400_thermal_run_osc(priv->adev->handle,
> - priv->current_uuid_index,
> - enable);
> + priv->current_uuid_index,
> + mode == THERMAL_DEVICE_ENABLED);
> }
>
> evaluate_odvp(priv);
On Thu, May 28, 2020 at 09:20:43PM +0200, Andrzej Pietrasiewicz wrote:
> Prepare for changing the place where the mode is stored: now it is in
> drivers, which might or might not implement get_mode()/set_mode() methods.
> A lot of cleanup can be done thanks to storing it in struct tzd. The
> get_mode() methods will become redundant.
>
> Signed-off-by: Andrzej Pietrasiewicz <[email protected]>
Reviewed-by: Guenter Roeck <[email protected]>
> ---
> include/linux/thermal.h | 2 ++
> 1 file changed, 2 insertions(+)
>
> diff --git a/include/linux/thermal.h b/include/linux/thermal.h
> index 216185bb3014..5f91d7f04512 100644
> --- a/include/linux/thermal.h
> +++ b/include/linux/thermal.h
> @@ -128,6 +128,7 @@ struct thermal_cooling_device {
> * @trip_temp_attrs: attributes for trip points for sysfs: trip temperature
> * @trip_type_attrs: attributes for trip points for sysfs: trip type
> * @trip_hyst_attrs: attributes for trip points for sysfs: trip hysteresis
> + * @mode: current mode of this thermal zone
> * @devdata: private pointer for device private data
> * @trips: number of trip points the thermal zone supports
> * @trips_disabled; bitmap for disabled trips
> @@ -170,6 +171,7 @@ struct thermal_zone_device {
> struct thermal_attr *trip_temp_attrs;
> struct thermal_attr *trip_type_attrs;
> struct thermal_attr *trip_hyst_attrs;
> + enum thermal_device_mode mode;
> void *devdata;
> int trips;
> unsigned long trips_disabled; /* bitmap for disabled trips */
On Thu, May 28, 2020 at 09:20:41PM +0200, Andrzej Pietrasiewicz wrote:
> The acpi_thermal_register_thermal_zone() is missing any error handling.
> This needs to be fixed.
>
> Signed-off-by: Andrzej Pietrasiewicz <[email protected]>
Reviewed-by: Guenter Roeck <[email protected]>
> ---
> drivers/acpi/thermal.c | 20 ++++++++++++++++----
> 1 file changed, 16 insertions(+), 4 deletions(-)
>
> diff --git a/drivers/acpi/thermal.c b/drivers/acpi/thermal.c
> index 19067a5e5293..6de8066ca1e7 100644
> --- a/drivers/acpi/thermal.c
> +++ b/drivers/acpi/thermal.c
> @@ -901,23 +901,35 @@ static int acpi_thermal_register_thermal_zone(struct acpi_thermal *tz)
> result = sysfs_create_link(&tz->device->dev.kobj,
> &tz->thermal_zone->device.kobj, "thermal_zone");
> if (result)
> - return result;
> + goto unregister_tzd;
>
> result = sysfs_create_link(&tz->thermal_zone->device.kobj,
> &tz->device->dev.kobj, "device");
> if (result)
> - return result;
> + goto remove_tz_link;
>
> status = acpi_bus_attach_private_data(tz->device->handle,
> tz->thermal_zone);
> - if (ACPI_FAILURE(status))
> - return -ENODEV;
> + if (ACPI_FAILURE(status)) {
> + result = -ENODEV;
> + goto remove_dev_link;
> + }
>
> tz->tz_enabled = 1;
>
> dev_info(&tz->device->dev, "registered as thermal_zone%d\n",
> tz->thermal_zone->id);
> +
> return 0;
> +
> +remove_dev_link:
> + sysfs_remove_link(&tz->thermal_zone->device.kobj, "device");
> +remove_tz_link:
> + sysfs_remove_link(&tz->device->dev.kobj, "thermal_zone");
> +unregister_tzd:
> + thermal_zone_device_unregister(tz->thermal_zone);
> +
> + return result;
> }
>
> static void acpi_thermal_unregister_thermal_zone(struct acpi_thermal *tz)
On Thu, May 28, 2020 at 09:20:42PM +0200, Andrzej Pietrasiewicz wrote:
> Prepare for storing mode in struct thermal_zone_device.
>
> Signed-off-by: Andrzej Pietrasiewicz <[email protected]>
What is the baseline for this series ? I can't get this patch to apply
on top of current mainline, nor on v5.6, nor on top of linux-next.
Thanks,
Guenter
W dniu 29.05.2020 o 17:05, Guenter Roeck pisze:
> On Thu, May 28, 2020 at 09:20:42PM +0200, Andrzej Pietrasiewicz wrote:
>> Prepare for storing mode in struct thermal_zone_device.
>>
>> Signed-off-by: Andrzej Pietrasiewicz <[email protected]>
>
> What is the baseline for this series ? I can't get this patch to apply
> on top of current mainline, nor on v5.6, nor on top of linux-next.
>
> Thanks,
> Guenter
>
git://git.kernel.org/pub/scm/linux/kernel/git/thermal/linux.git, branch "testing".
base-commit: 351f4911a477ae01239c42f771f621d85b06ea10
Andrzej
Hi Guenter,
W dniu 29.05.2020 o 16:48, Guenter Roeck pisze:
> On Thu, May 28, 2020 at 09:20:42PM +0200, Andrzej Pietrasiewicz wrote:
>> Prepare for storing mode in struct thermal_zone_device.
>>
>> Signed-off-by: Andrzej Pietrasiewicz <[email protected]>
>> ---
>> drivers/acpi/thermal.c | 27 +++++++++----------
>> drivers/platform/x86/acerhdf.c | 8 ++++--
>> .../intel/int340x_thermal/int3400_thermal.c | 18 +++++--------
>> 3 files changed, 25 insertions(+), 28 deletions(-)
<snip>
>> @@ -544,27 +543,25 @@ static int thermal_set_mode(struct thermal_zone_device *thermal,
>> enum thermal_device_mode mode)
>> {
>> struct acpi_thermal *tz = thermal->devdata;
>> - int enable;
>>
>> if (!tz)
>> return -EINVAL;
>>
>> + if (mode != THERMAL_DEVICE_DISABLED &&
>> + mode != THERMAL_DEVICE_ENABLED)
>> + return -EINVAL;
>
> Personally I find this check unnecessary: The enum has no other values,
> and it is verifyable that the callers provide the enum and not some other
> value.
It is getting removed in PATCH 10/11.
>> + if (mode != THERMAL_DEVICE_ENABLED &&
>> + mode != THERMAL_DEVICE_DISABLED)
>> return -EINVAL;
>
> Same as above.
ditto.
On 5/29/20 8:08 AM, Andrzej Pietrasiewicz wrote:
> W dniu 29.05.2020 o 17:05, Guenter Roeck pisze:
>> On Thu, May 28, 2020 at 09:20:42PM +0200, Andrzej Pietrasiewicz wrote:
>>> Prepare for storing mode in struct thermal_zone_device.
>>>
>>> Signed-off-by: Andrzej Pietrasiewicz <[email protected]>
>>
>> What is the baseline for this series ? I can't get this patch to apply
>> on top of current mainline, nor on v5.6, nor on top of linux-next.
>>
>> Thanks,
>> Guenter
>>
>
> git://git.kernel.org/pub/scm/linux/kernel/git/thermal/linux.git, branch "testing".
>
> base-commit: 351f4911a477ae01239c42f771f621d85b06ea10
>
Thanks!
Guenter
On 5/29/20 8:13 AM, Andrzej Pietrasiewicz wrote:
> Hi Guenter,
>
> W dniu 29.05.2020 o 16:48, Guenter Roeck pisze:
>> On Thu, May 28, 2020 at 09:20:42PM +0200, Andrzej Pietrasiewicz wrote:
>>> Prepare for storing mode in struct thermal_zone_device.
>>>
>>> Signed-off-by: Andrzej Pietrasiewicz <[email protected]>
>>> ---
>>> drivers/acpi/thermal.c | 27 +++++++++----------
>>> drivers/platform/x86/acerhdf.c | 8 ++++--
>>> .../intel/int340x_thermal/int3400_thermal.c | 18 +++++--------
>>> 3 files changed, 25 insertions(+), 28 deletions(-)
>
> <snip>
>
>>> @@ -544,27 +543,25 @@ static int thermal_set_mode(struct thermal_zone_device *thermal,
>>> enum thermal_device_mode mode)
>>> {
>>> struct acpi_thermal *tz = thermal->devdata;
>>> - int enable;
>>> if (!tz)
>>> return -EINVAL;
>>> + if (mode != THERMAL_DEVICE_DISABLED &&
>>> + mode != THERMAL_DEVICE_ENABLED)
>>> + return -EINVAL;
>>
>> Personally I find this check unnecessary: The enum has no other values,
>> and it is verifyable that the callers provide the enum and not some other
>> value.
>
> It is getting removed in PATCH 10/11.
>
>
>>> + if (mode != THERMAL_DEVICE_ENABLED &&
>>> + mode != THERMAL_DEVICE_DISABLED)
>>> return -EINVAL;
>>
>> Same as above.
>
> ditto.
Hmm, I think that would be better done with this patch. But I guess
that is a bit of PoV, so
Reviewed-by: Guenter Roeck <[email protected]>
since I don't have any other objections/observations.
Guenter
On Thu, May 28, 2020 at 09:20:44PM +0200, Andrzej Pietrasiewicz wrote:
> Prepare for eliminating get_mode().
>
Might be worthwhile to explain (not only in the subject) what you are
doing here.
> Signed-off-by: Andrzej Pietrasiewicz <[email protected]>
> ---
> drivers/acpi/thermal.c | 18 ++++++----------
> .../ethernet/mellanox/mlxsw/core_thermal.c | 21 +++++++------------
> drivers/platform/x86/acerhdf.c | 15 ++++++-------
> drivers/thermal/da9062-thermal.c | 6 ++----
> drivers/thermal/imx_thermal.c | 17 +++++++--------
> .../intel/int340x_thermal/int3400_thermal.c | 12 +++--------
> .../thermal/intel/intel_quark_dts_thermal.c | 16 +++++++-------
> drivers/thermal/thermal_of.c | 10 +++------
After this patch is applied on top of the thermal 'testing' branch,
there are still local instances of thermal_device_mode in
drivers/thermal/st/stm_thermal.c
drivers/thermal/ti-soc-thermal/ti-thermal-common.c
If there is a reason not to replace those, it might make sense to explain
it here.
Thanks,
Guenter
> 8 files changed, 44 insertions(+), 71 deletions(-)
>
> diff --git a/drivers/acpi/thermal.c b/drivers/acpi/thermal.c
> index fb46070c66d8..4ba273f49d87 100644
> --- a/drivers/acpi/thermal.c
> +++ b/drivers/acpi/thermal.c
> @@ -172,7 +172,6 @@ struct acpi_thermal {
> struct acpi_thermal_trips trips;
> struct acpi_handle_list devices;
> struct thermal_zone_device *thermal_zone;
> - enum thermal_device_mode mode;
> int kelvin_offset; /* in millidegrees */
> struct work_struct thermal_check_work;
> };
> @@ -500,7 +499,7 @@ static void acpi_thermal_check(void *data)
> {
> struct acpi_thermal *tz = data;
>
> - if (tz->mode != THERMAL_DEVICE_ENABLED)
> + if (tz->thermal_zone->mode != THERMAL_DEVICE_ENABLED)
> return;
>
> thermal_zone_device_update(tz->thermal_zone,
> @@ -529,12 +528,7 @@ static int thermal_get_temp(struct thermal_zone_device *thermal, int *temp)
> static int thermal_get_mode(struct thermal_zone_device *thermal,
> enum thermal_device_mode *mode)
> {
> - struct acpi_thermal *tz = thermal->devdata;
> -
> - if (!tz)
> - return -EINVAL;
> -
> - *mode = tz->mode;
> + *mode = thermal->mode;
>
> return 0;
> }
> @@ -556,11 +550,11 @@ static int thermal_set_mode(struct thermal_zone_device *thermal,
> if (mode == THERMAL_DEVICE_DISABLED)
> pr_warn("thermal zone will be disabled\n");
>
> - if (mode != tz->mode) {
> - tz->mode = mode;
> + if (mode != tz->thermal_zone->mode) {
> + tz->thermal_zone->mode = mode;
> ACPI_DEBUG_PRINT((ACPI_DB_INFO,
> "%s kernel ACPI thermal control\n",
> - tz->mode == THERMAL_DEVICE_ENABLED ?
> + tz->thermal_zone->mode == THERMAL_DEVICE_ENABLED ?
> "Enable" : "Disable"));
> acpi_thermal_check(tz);
> }
> @@ -912,7 +906,7 @@ static int acpi_thermal_register_thermal_zone(struct acpi_thermal *tz)
> goto remove_dev_link;
> }
>
> - tz->mode = THERMAL_DEVICE_ENABLED;
> + tz->thermal_zone->mode = THERMAL_DEVICE_ENABLED;
>
> dev_info(&tz->device->dev, "registered as thermal_zone%d\n",
> tz->thermal_zone->id);
> diff --git a/drivers/net/ethernet/mellanox/mlxsw/core_thermal.c b/drivers/net/ethernet/mellanox/mlxsw/core_thermal.c
> index ce0a6837daa3..aa082e8a0b13 100644
> --- a/drivers/net/ethernet/mellanox/mlxsw/core_thermal.c
> +++ b/drivers/net/ethernet/mellanox/mlxsw/core_thermal.c
> @@ -98,7 +98,6 @@ struct mlxsw_thermal_module {
> struct mlxsw_thermal *parent;
> struct thermal_zone_device *tzdev;
> struct mlxsw_thermal_trip trips[MLXSW_THERMAL_NUM_TRIPS];
> - enum thermal_device_mode mode;
> int module; /* Module or gearbox number */
> };
>
> @@ -110,7 +109,6 @@ struct mlxsw_thermal {
> struct thermal_cooling_device *cdevs[MLXSW_MFCR_PWMS_MAX];
> u8 cooling_levels[MLXSW_THERMAL_MAX_STATE + 1];
> struct mlxsw_thermal_trip trips[MLXSW_THERMAL_NUM_TRIPS];
> - enum thermal_device_mode mode;
> struct mlxsw_thermal_module *tz_module_arr;
> u8 tz_module_num;
> struct mlxsw_thermal_module *tz_gearbox_arr;
> @@ -280,9 +278,7 @@ static int mlxsw_thermal_unbind(struct thermal_zone_device *tzdev,
> static int mlxsw_thermal_get_mode(struct thermal_zone_device *tzdev,
> enum thermal_device_mode *mode)
> {
> - struct mlxsw_thermal *thermal = tzdev->devdata;
> -
> - *mode = thermal->mode;
> + *mode = tzdev->mode;
>
> return 0;
> }
> @@ -299,9 +295,9 @@ static int mlxsw_thermal_set_mode(struct thermal_zone_device *tzdev,
> else
> tzdev->polling_delay = 0;
>
> + tzdev->mode = mode;
> mutex_unlock(&tzdev->lock);
>
> - thermal->mode = mode;
> thermal_zone_device_update(tzdev, THERMAL_EVENT_UNSPECIFIED);
>
> return 0;
> @@ -469,9 +465,7 @@ static int mlxsw_thermal_module_unbind(struct thermal_zone_device *tzdev,
> static int mlxsw_thermal_module_mode_get(struct thermal_zone_device *tzdev,
> enum thermal_device_mode *mode)
> {
> - struct mlxsw_thermal_module *tz = tzdev->devdata;
> -
> - *mode = tz->mode;
> + *mode = tzdev->mode;
>
> return 0;
> }
> @@ -489,9 +483,10 @@ static int mlxsw_thermal_module_mode_set(struct thermal_zone_device *tzdev,
> else
> tzdev->polling_delay = 0;
>
> + tzdev->mode = mode;
> +
> mutex_unlock(&tzdev->lock);
>
> - tz->mode = mode;
> thermal_zone_device_update(tzdev, THERMAL_EVENT_UNSPECIFIED);
>
> return 0;
> @@ -765,7 +760,7 @@ mlxsw_thermal_module_tz_init(struct mlxsw_thermal_module *module_tz)
> return err;
> }
>
> - module_tz->mode = THERMAL_DEVICE_ENABLED;
> + module_tz->tzdev->mode = THERMAL_DEVICE_ENABLED;
> return 0;
> }
>
> @@ -881,7 +876,7 @@ mlxsw_thermal_gearbox_tz_init(struct mlxsw_thermal_module *gearbox_tz)
> if (IS_ERR(gearbox_tz->tzdev))
> return PTR_ERR(gearbox_tz->tzdev);
>
> - gearbox_tz->mode = THERMAL_DEVICE_ENABLED;
> + gearbox_tz->tzdev->mode = THERMAL_DEVICE_ENABLED;
> return 0;
> }
>
> @@ -1050,7 +1045,7 @@ int mlxsw_thermal_init(struct mlxsw_core *core,
> if (err)
> goto err_unreg_modules_tzdev;
>
> - thermal->mode = THERMAL_DEVICE_ENABLED;
> + thermal->tzdev->mode = THERMAL_DEVICE_ENABLED;
> *p_thermal = thermal;
> return 0;
>
> diff --git a/drivers/platform/x86/acerhdf.c b/drivers/platform/x86/acerhdf.c
> index 830a8b060e74..97b288485837 100644
> --- a/drivers/platform/x86/acerhdf.c
> +++ b/drivers/platform/x86/acerhdf.c
> @@ -68,7 +68,6 @@ static int kernelmode = 1;
> #else
> static int kernelmode;
> #endif
> -static enum thermal_device_mode thermal_mode;
>
> static unsigned int interval = 10;
> static unsigned int fanon = 60000;
> @@ -398,15 +397,16 @@ static inline void acerhdf_revert_to_bios_mode(void)
> {
> acerhdf_change_fanstate(ACERHDF_FAN_AUTO);
> kernelmode = 0;
> - thermal_mode = THERMAL_DEVICE_DISABLED;
> - if (thz_dev)
> + if (thz_dev) {
> + thz_dev->mode = THERMAL_DEVICE_DISABLED;
> thz_dev->polling_delay = 0;
> + }
> pr_notice("kernel mode fan control OFF\n");
> }
> static inline void acerhdf_enable_kernelmode(void)
> {
> kernelmode = 1;
> - thermal_mode = THERMAL_DEVICE_ENABLED;
> + thz_dev->mode = THERMAL_DEVICE_ENABLED;
>
> thz_dev->polling_delay = interval*1000;
> thermal_zone_device_update(thz_dev, THERMAL_EVENT_UNSPECIFIED);
> @@ -419,7 +419,7 @@ static int acerhdf_get_mode(struct thermal_zone_device *thermal,
> if (verbose)
> pr_notice("kernel mode fan control %d\n", kernelmode);
>
> - *mode = thermal_mode;
> + *mode = thermal->mode;
>
> return 0;
> }
> @@ -741,8 +741,6 @@ static int __init acerhdf_register_thermal(void)
> if (IS_ERR(cl_dev))
> return -EINVAL;
>
> - thermal_mode = kernelmode ?
> - THERMAL_DEVICE_ENABLED : THERMAL_DEVICE_DISABLED;
> thz_dev = thermal_zone_device_register("acerhdf", 2, 0, NULL,
> &acerhdf_dev_ops,
> &acerhdf_zone_params, 0,
> @@ -750,6 +748,9 @@ static int __init acerhdf_register_thermal(void)
> if (IS_ERR(thz_dev))
> return -EINVAL;
>
> + thz_dev->mode = kernelmode ?
> + THERMAL_DEVICE_ENABLED : THERMAL_DEVICE_DISABLED;
> +
> if (strcmp(thz_dev->governor->name,
> acerhdf_zone_params.governor_name)) {
> pr_err("Didn't get thermal governor %s, perhaps not compiled into thermal subsystem.\n",
> diff --git a/drivers/thermal/da9062-thermal.c b/drivers/thermal/da9062-thermal.c
> index c32709badeda..a14c7981c7c7 100644
> --- a/drivers/thermal/da9062-thermal.c
> +++ b/drivers/thermal/da9062-thermal.c
> @@ -49,7 +49,6 @@ struct da9062_thermal {
> struct da9062 *hw;
> struct delayed_work work;
> struct thermal_zone_device *zone;
> - enum thermal_device_mode mode;
> struct mutex lock; /* protection for da9062_thermal temperature */
> int temperature;
> int irq;
> @@ -124,8 +123,7 @@ static irqreturn_t da9062_thermal_irq_handler(int irq, void *data)
> static int da9062_thermal_get_mode(struct thermal_zone_device *z,
> enum thermal_device_mode *mode)
> {
> - struct da9062_thermal *thermal = z->devdata;
> - *mode = thermal->mode;
> + *mode = z->mode;
> return 0;
> }
>
> @@ -233,7 +231,6 @@ static int da9062_thermal_probe(struct platform_device *pdev)
>
> thermal->config = match->data;
> thermal->hw = chip;
> - thermal->mode = THERMAL_DEVICE_ENABLED;
> thermal->dev = &pdev->dev;
>
> INIT_DELAYED_WORK(&thermal->work, da9062_thermal_poll_on);
> @@ -248,6 +245,7 @@ static int da9062_thermal_probe(struct platform_device *pdev)
> ret = PTR_ERR(thermal->zone);
> goto err;
> }
> + thermal->zone->mode = THERMAL_DEVICE_ENABLED;
>
> dev_dbg(&pdev->dev,
> "TJUNC temperature polling period set at %d ms\n",
> diff --git a/drivers/thermal/imx_thermal.c b/drivers/thermal/imx_thermal.c
> index e761c9b42217..9a1114d721b6 100644
> --- a/drivers/thermal/imx_thermal.c
> +++ b/drivers/thermal/imx_thermal.c
> @@ -197,7 +197,6 @@ struct imx_thermal_data {
> struct cpufreq_policy *policy;
> struct thermal_zone_device *tz;
> struct thermal_cooling_device *cdev;
> - enum thermal_device_mode mode;
> struct regmap *tempmon;
> u32 c1, c2; /* See formula in imx_init_calib() */
> int temp_passive;
> @@ -256,7 +255,7 @@ static int imx_get_temp(struct thermal_zone_device *tz, int *temp)
> bool wait;
> u32 val;
>
> - if (data->mode == THERMAL_DEVICE_ENABLED) {
> + if (tz->mode == THERMAL_DEVICE_ENABLED) {
> /* Check if a measurement is currently in progress */
> regmap_read(map, soc_data->temp_data, &val);
> wait = !(val & soc_data->temp_valid_mask);
> @@ -283,7 +282,7 @@ static int imx_get_temp(struct thermal_zone_device *tz, int *temp)
>
> regmap_read(map, soc_data->temp_data, &val);
>
> - if (data->mode != THERMAL_DEVICE_ENABLED) {
> + if (tz->mode != THERMAL_DEVICE_ENABLED) {
> regmap_write(map, soc_data->sensor_ctrl + REG_CLR,
> soc_data->measure_temp_mask);
> regmap_write(map, soc_data->sensor_ctrl + REG_SET,
> @@ -334,9 +333,7 @@ static int imx_get_temp(struct thermal_zone_device *tz, int *temp)
> static int imx_get_mode(struct thermal_zone_device *tz,
> enum thermal_device_mode *mode)
> {
> - struct imx_thermal_data *data = tz->devdata;
> -
> - *mode = data->mode;
> + *mode = tz->mode;
>
> return 0;
> }
> @@ -376,7 +373,7 @@ static int imx_set_mode(struct thermal_zone_device *tz,
> }
> }
>
> - data->mode = mode;
> + tz->mode = mode;
> thermal_zone_device_update(tz, THERMAL_EVENT_UNSPECIFIED);
>
> return 0;
> @@ -831,7 +828,7 @@ static int imx_thermal_probe(struct platform_device *pdev)
> data->socdata->measure_temp_mask);
>
> data->irq_enabled = true;
> - data->mode = THERMAL_DEVICE_ENABLED;
> + data->tz->mode = THERMAL_DEVICE_ENABLED;
>
> ret = devm_request_threaded_irq(&pdev->dev, data->irq,
> imx_thermal_alarm_irq, imx_thermal_alarm_irq_thread,
> @@ -885,7 +882,7 @@ static int __maybe_unused imx_thermal_suspend(struct device *dev)
> data->socdata->measure_temp_mask);
> regmap_write(map, data->socdata->sensor_ctrl + REG_SET,
> data->socdata->power_down_mask);
> - data->mode = THERMAL_DEVICE_DISABLED;
> + data->tz->mode = THERMAL_DEVICE_DISABLED;
> clk_disable_unprepare(data->thermal_clk);
>
> return 0;
> @@ -905,7 +902,7 @@ static int __maybe_unused imx_thermal_resume(struct device *dev)
> data->socdata->power_down_mask);
> regmap_write(map, data->socdata->sensor_ctrl + REG_SET,
> data->socdata->measure_temp_mask);
> - data->mode = THERMAL_DEVICE_ENABLED;
> + data->tz->mode = THERMAL_DEVICE_ENABLED;
>
> return 0;
> }
> diff --git a/drivers/thermal/intel/int340x_thermal/int3400_thermal.c b/drivers/thermal/intel/int340x_thermal/int3400_thermal.c
> index e84faaadff87..f65b2fc09198 100644
> --- a/drivers/thermal/intel/int340x_thermal/int3400_thermal.c
> +++ b/drivers/thermal/intel/int340x_thermal/int3400_thermal.c
> @@ -48,7 +48,6 @@ struct int3400_thermal_priv {
> struct acpi_device *adev;
> struct platform_device *pdev;
> struct thermal_zone_device *thermal;
> - enum thermal_device_mode mode;
> int art_count;
> struct art *arts;
> int trt_count;
> @@ -381,12 +380,7 @@ static int int3400_thermal_get_temp(struct thermal_zone_device *thermal,
> static int int3400_thermal_get_mode(struct thermal_zone_device *thermal,
> enum thermal_device_mode *mode)
> {
> - struct int3400_thermal_priv *priv = thermal->devdata;
> -
> - if (!priv)
> - return -EINVAL;
> -
> - *mode = priv->mode;
> + *mode = thermal->mode;
>
> return 0;
> }
> @@ -404,8 +398,8 @@ static int int3400_thermal_set_mode(struct thermal_zone_device *thermal,
> mode != THERMAL_DEVICE_DISABLED)
> return -EINVAL;
>
> - if (mode != priv->mode) {
> - priv->mode = mode;
> + if (mode != thermal->mode) {
> + thermal->mode = mode;
> result = int3400_thermal_run_osc(priv->adev->handle,
> priv->current_uuid_index,
> mode == THERMAL_DEVICE_ENABLED);
> diff --git a/drivers/thermal/intel/intel_quark_dts_thermal.c b/drivers/thermal/intel/intel_quark_dts_thermal.c
> index d704fc104cfd..d77cb3df5ade 100644
> --- a/drivers/thermal/intel/intel_quark_dts_thermal.c
> +++ b/drivers/thermal/intel/intel_quark_dts_thermal.c
> @@ -103,7 +103,6 @@ struct soc_sensor_entry {
> bool locked;
> u32 store_ptps;
> u32 store_dts_enable;
> - enum thermal_device_mode mode;
> struct thermal_zone_device *tzone;
> };
>
> @@ -128,7 +127,7 @@ static int soc_dts_enable(struct thermal_zone_device *tzd)
> return ret;
>
> if (out & QRK_DTS_ENABLE_BIT) {
> - aux_entry->mode = THERMAL_DEVICE_ENABLED;
> + tzd->mode = THERMAL_DEVICE_ENABLED;
> return 0;
> }
>
> @@ -139,9 +138,9 @@ static int soc_dts_enable(struct thermal_zone_device *tzd)
> if (ret)
> return ret;
>
> - aux_entry->mode = THERMAL_DEVICE_ENABLED;
> + tzd->mode = THERMAL_DEVICE_ENABLED;
> } else {
> - aux_entry->mode = THERMAL_DEVICE_DISABLED;
> + tzd->mode = THERMAL_DEVICE_DISABLED;
> pr_info("DTS is locked. Cannot enable DTS\n");
> ret = -EPERM;
> }
> @@ -161,7 +160,7 @@ static int soc_dts_disable(struct thermal_zone_device *tzd)
> return ret;
>
> if (!(out & QRK_DTS_ENABLE_BIT)) {
> - aux_entry->mode = THERMAL_DEVICE_DISABLED;
> + tzd->mode = THERMAL_DEVICE_DISABLED;
> return 0;
> }
>
> @@ -173,9 +172,9 @@ static int soc_dts_disable(struct thermal_zone_device *tzd)
> if (ret)
> return ret;
>
> - aux_entry->mode = THERMAL_DEVICE_DISABLED;
> + tzd->mode = THERMAL_DEVICE_DISABLED;
> } else {
> - aux_entry->mode = THERMAL_DEVICE_ENABLED;
> + tzd->mode = THERMAL_DEVICE_ENABLED;
> pr_info("DTS is locked. Cannot disable DTS\n");
> ret = -EPERM;
> }
> @@ -312,8 +311,7 @@ static int sys_get_curr_temp(struct thermal_zone_device *tzd,
> static int sys_get_mode(struct thermal_zone_device *tzd,
> enum thermal_device_mode *mode)
> {
> - struct soc_sensor_entry *aux_entry = tzd->devdata;
> - *mode = aux_entry->mode;
> + *mode = tzd->mode;
> return 0;
> }
>
> diff --git a/drivers/thermal/thermal_of.c b/drivers/thermal/thermal_of.c
> index ddf88dbe7ba2..c495b1e48ef2 100644
> --- a/drivers/thermal/thermal_of.c
> +++ b/drivers/thermal/thermal_of.c
> @@ -51,7 +51,6 @@ struct __thermal_bind_params {
>
> /**
> * struct __thermal_zone - internal representation of a thermal zone
> - * @mode: current thermal zone device mode (enabled/disabled)
> * @passive_delay: polling interval while passive cooling is activated
> * @polling_delay: zone polling interval
> * @slope: slope of the temperature adjustment curve
> @@ -65,7 +64,6 @@ struct __thermal_bind_params {
> */
>
> struct __thermal_zone {
> - enum thermal_device_mode mode;
> int passive_delay;
> int polling_delay;
> int slope;
> @@ -272,9 +270,7 @@ static int of_thermal_unbind(struct thermal_zone_device *thermal,
> static int of_thermal_get_mode(struct thermal_zone_device *tz,
> enum thermal_device_mode *mode)
> {
> - struct __thermal_zone *data = tz->devdata;
> -
> - *mode = data->mode;
> + *mode = tz->mode;
>
> return 0;
> }
> @@ -296,7 +292,7 @@ static int of_thermal_set_mode(struct thermal_zone_device *tz,
>
> mutex_unlock(&tz->lock);
>
> - data->mode = mode;
> + tz->mode = mode;
> thermal_zone_device_update(tz, THERMAL_EVENT_UNSPECIFIED);
>
> return 0;
> @@ -979,7 +975,6 @@ __init *thermal_of_build_thermal_zone(struct device_node *np)
>
> finish:
> of_node_put(child);
> - tz->mode = THERMAL_DEVICE_DISABLED;
>
> return tz;
>
> @@ -1134,6 +1129,7 @@ int __init of_parse_thermal_zones(void)
> of_thermal_free_zone(tz);
> /* attempting to build remaining zones still */
> }
> + zone->mode = THERMAL_DEVICE_DISABLED;
> }
> of_node_put(np);
>
On Thu, May 28, 2020 at 09:20:45PM +0200, Andrzej Pietrasiewicz wrote:
> get_mode() is now redundant, as the state is stored in struct
> thermal_zone_device.
>
> Consequently the "mode" attribute in sysfs can always be visible, because
> it is always possible to get the mode from struct tzd.
>
> Signed-off-by: Andrzej Pietrasiewicz <[email protected]>
There is a slight semantic change for the two drivers which still have
a local copy of enum thermal_device_mode: Previously trying to read the
mode for those would return -EPERM since they don't have a get_mode
function. Now the global value for mode is returned, but I am not sure
if it matches the local value.
Guenter
> ---
> drivers/acpi/thermal.c | 9 ------
> .../ethernet/mellanox/mlxsw/core_thermal.c | 19 ------------
> drivers/platform/x86/acerhdf.c | 12 --------
> drivers/thermal/da9062-thermal.c | 8 -----
> drivers/thermal/imx_thermal.c | 9 ------
> .../intel/int340x_thermal/int3400_thermal.c | 9 ------
> .../thermal/intel/intel_quark_dts_thermal.c | 8 -----
> drivers/thermal/thermal_core.c | 7 +----
> drivers/thermal/thermal_of.c | 9 ------
> drivers/thermal/thermal_sysfs.c | 30 ++-----------------
> include/linux/thermal.h | 2 --
> 11 files changed, 3 insertions(+), 119 deletions(-)
>
> diff --git a/drivers/acpi/thermal.c b/drivers/acpi/thermal.c
> index 4ba273f49d87..592be97c4456 100644
> --- a/drivers/acpi/thermal.c
> +++ b/drivers/acpi/thermal.c
> @@ -525,14 +525,6 @@ static int thermal_get_temp(struct thermal_zone_device *thermal, int *temp)
> return 0;
> }
>
> -static int thermal_get_mode(struct thermal_zone_device *thermal,
> - enum thermal_device_mode *mode)
> -{
> - *mode = thermal->mode;
> -
> - return 0;
> -}
> -
> static int thermal_set_mode(struct thermal_zone_device *thermal,
> enum thermal_device_mode mode)
> {
> @@ -847,7 +839,6 @@ static struct thermal_zone_device_ops acpi_thermal_zone_ops = {
> .bind = acpi_thermal_bind_cooling_device,
> .unbind = acpi_thermal_unbind_cooling_device,
> .get_temp = thermal_get_temp,
> - .get_mode = thermal_get_mode,
> .set_mode = thermal_set_mode,
> .get_trip_type = thermal_get_trip_type,
> .get_trip_temp = thermal_get_trip_temp,
> diff --git a/drivers/net/ethernet/mellanox/mlxsw/core_thermal.c b/drivers/net/ethernet/mellanox/mlxsw/core_thermal.c
> index aa082e8a0b13..6e26678ac312 100644
> --- a/drivers/net/ethernet/mellanox/mlxsw/core_thermal.c
> +++ b/drivers/net/ethernet/mellanox/mlxsw/core_thermal.c
> @@ -275,14 +275,6 @@ static int mlxsw_thermal_unbind(struct thermal_zone_device *tzdev,
> return 0;
> }
>
> -static int mlxsw_thermal_get_mode(struct thermal_zone_device *tzdev,
> - enum thermal_device_mode *mode)
> -{
> - *mode = tzdev->mode;
> -
> - return 0;
> -}
> -
> static int mlxsw_thermal_set_mode(struct thermal_zone_device *tzdev,
> enum thermal_device_mode mode)
> {
> @@ -403,7 +395,6 @@ static int mlxsw_thermal_trend_get(struct thermal_zone_device *tzdev,
> static struct thermal_zone_device_ops mlxsw_thermal_ops = {
> .bind = mlxsw_thermal_bind,
> .unbind = mlxsw_thermal_unbind,
> - .get_mode = mlxsw_thermal_get_mode,
> .set_mode = mlxsw_thermal_set_mode,
> .get_temp = mlxsw_thermal_get_temp,
> .get_trip_type = mlxsw_thermal_get_trip_type,
> @@ -462,14 +453,6 @@ static int mlxsw_thermal_module_unbind(struct thermal_zone_device *tzdev,
> return err;
> }
>
> -static int mlxsw_thermal_module_mode_get(struct thermal_zone_device *tzdev,
> - enum thermal_device_mode *mode)
> -{
> - *mode = tzdev->mode;
> -
> - return 0;
> -}
> -
> static int mlxsw_thermal_module_mode_set(struct thermal_zone_device *tzdev,
> enum thermal_device_mode mode)
> {
> @@ -591,7 +574,6 @@ mlxsw_thermal_module_trip_hyst_set(struct thermal_zone_device *tzdev, int trip,
> static struct thermal_zone_device_ops mlxsw_thermal_module_ops = {
> .bind = mlxsw_thermal_module_bind,
> .unbind = mlxsw_thermal_module_unbind,
> - .get_mode = mlxsw_thermal_module_mode_get,
> .set_mode = mlxsw_thermal_module_mode_set,
> .get_temp = mlxsw_thermal_module_temp_get,
> .get_trip_type = mlxsw_thermal_module_trip_type_get,
> @@ -630,7 +612,6 @@ static int mlxsw_thermal_gearbox_temp_get(struct thermal_zone_device *tzdev,
> static struct thermal_zone_device_ops mlxsw_thermal_gearbox_ops = {
> .bind = mlxsw_thermal_module_bind,
> .unbind = mlxsw_thermal_module_unbind,
> - .get_mode = mlxsw_thermal_module_mode_get,
> .set_mode = mlxsw_thermal_module_mode_set,
> .get_temp = mlxsw_thermal_gearbox_temp_get,
> .get_trip_type = mlxsw_thermal_module_trip_type_get,
> diff --git a/drivers/platform/x86/acerhdf.c b/drivers/platform/x86/acerhdf.c
> index 97b288485837..32c5fe16b7f7 100644
> --- a/drivers/platform/x86/acerhdf.c
> +++ b/drivers/platform/x86/acerhdf.c
> @@ -413,17 +413,6 @@ static inline void acerhdf_enable_kernelmode(void)
> pr_notice("kernel mode fan control ON\n");
> }
>
> -static int acerhdf_get_mode(struct thermal_zone_device *thermal,
> - enum thermal_device_mode *mode)
> -{
> - if (verbose)
> - pr_notice("kernel mode fan control %d\n", kernelmode);
> -
> - *mode = thermal->mode;
> -
> - return 0;
> -}
> -
> /*
> * set operation mode;
> * enabled: the thermal layer of the kernel takes care about
> @@ -490,7 +479,6 @@ static struct thermal_zone_device_ops acerhdf_dev_ops = {
> .bind = acerhdf_bind,
> .unbind = acerhdf_unbind,
> .get_temp = acerhdf_get_ec_temp,
> - .get_mode = acerhdf_get_mode,
> .set_mode = acerhdf_set_mode,
> .get_trip_type = acerhdf_get_trip_type,
> .get_trip_hyst = acerhdf_get_trip_hyst,
> diff --git a/drivers/thermal/da9062-thermal.c b/drivers/thermal/da9062-thermal.c
> index a14c7981c7c7..a7ac8afb063e 100644
> --- a/drivers/thermal/da9062-thermal.c
> +++ b/drivers/thermal/da9062-thermal.c
> @@ -120,13 +120,6 @@ static irqreturn_t da9062_thermal_irq_handler(int irq, void *data)
> return IRQ_HANDLED;
> }
>
> -static int da9062_thermal_get_mode(struct thermal_zone_device *z,
> - enum thermal_device_mode *mode)
> -{
> - *mode = z->mode;
> - return 0;
> -}
> -
> static int da9062_thermal_get_trip_type(struct thermal_zone_device *z,
> int trip,
> enum thermal_trip_type *type)
> @@ -179,7 +172,6 @@ static int da9062_thermal_get_temp(struct thermal_zone_device *z,
>
> static struct thermal_zone_device_ops da9062_thermal_ops = {
> .get_temp = da9062_thermal_get_temp,
> - .get_mode = da9062_thermal_get_mode,
> .get_trip_type = da9062_thermal_get_trip_type,
> .get_trip_temp = da9062_thermal_get_trip_temp,
> };
> diff --git a/drivers/thermal/imx_thermal.c b/drivers/thermal/imx_thermal.c
> index 9a1114d721b6..2c7ee5da608a 100644
> --- a/drivers/thermal/imx_thermal.c
> +++ b/drivers/thermal/imx_thermal.c
> @@ -330,14 +330,6 @@ static int imx_get_temp(struct thermal_zone_device *tz, int *temp)
> return 0;
> }
>
> -static int imx_get_mode(struct thermal_zone_device *tz,
> - enum thermal_device_mode *mode)
> -{
> - *mode = tz->mode;
> -
> - return 0;
> -}
> -
> static int imx_set_mode(struct thermal_zone_device *tz,
> enum thermal_device_mode mode)
> {
> @@ -464,7 +456,6 @@ static struct thermal_zone_device_ops imx_tz_ops = {
> .bind = imx_bind,
> .unbind = imx_unbind,
> .get_temp = imx_get_temp,
> - .get_mode = imx_get_mode,
> .set_mode = imx_set_mode,
> .get_trip_type = imx_get_trip_type,
> .get_trip_temp = imx_get_trip_temp,
> diff --git a/drivers/thermal/intel/int340x_thermal/int3400_thermal.c b/drivers/thermal/intel/int340x_thermal/int3400_thermal.c
> index f65b2fc09198..9a622aaf29dd 100644
> --- a/drivers/thermal/intel/int340x_thermal/int3400_thermal.c
> +++ b/drivers/thermal/intel/int340x_thermal/int3400_thermal.c
> @@ -377,14 +377,6 @@ static int int3400_thermal_get_temp(struct thermal_zone_device *thermal,
> return 0;
> }
>
> -static int int3400_thermal_get_mode(struct thermal_zone_device *thermal,
> - enum thermal_device_mode *mode)
> -{
> - *mode = thermal->mode;
> -
> - return 0;
> -}
> -
> static int int3400_thermal_set_mode(struct thermal_zone_device *thermal,
> enum thermal_device_mode mode)
> {
> @@ -412,7 +404,6 @@ static int int3400_thermal_set_mode(struct thermal_zone_device *thermal,
>
> static struct thermal_zone_device_ops int3400_thermal_ops = {
> .get_temp = int3400_thermal_get_temp,
> - .get_mode = int3400_thermal_get_mode,
> .set_mode = int3400_thermal_set_mode,
> };
>
> diff --git a/drivers/thermal/intel/intel_quark_dts_thermal.c b/drivers/thermal/intel/intel_quark_dts_thermal.c
> index d77cb3df5ade..c4879b4bfbf1 100644
> --- a/drivers/thermal/intel/intel_quark_dts_thermal.c
> +++ b/drivers/thermal/intel/intel_quark_dts_thermal.c
> @@ -308,13 +308,6 @@ static int sys_get_curr_temp(struct thermal_zone_device *tzd,
> return 0;
> }
>
> -static int sys_get_mode(struct thermal_zone_device *tzd,
> - enum thermal_device_mode *mode)
> -{
> - *mode = tzd->mode;
> - return 0;
> -}
> -
> static int sys_set_mode(struct thermal_zone_device *tzd,
> enum thermal_device_mode mode)
> {
> @@ -336,7 +329,6 @@ static struct thermal_zone_device_ops tzone_ops = {
> .get_trip_type = sys_get_trip_type,
> .set_trip_temp = sys_set_trip_temp,
> .get_crit_temp = sys_get_crit_temp,
> - .get_mode = sys_get_mode,
> .set_mode = sys_set_mode,
> };
>
> diff --git a/drivers/thermal/thermal_core.c b/drivers/thermal/thermal_core.c
> index b71196eaf90e..14d3b1b94c4f 100644
> --- a/drivers/thermal/thermal_core.c
> +++ b/drivers/thermal/thermal_core.c
> @@ -1456,7 +1456,6 @@ static int thermal_pm_notify(struct notifier_block *nb,
> unsigned long mode, void *_unused)
> {
> struct thermal_zone_device *tz;
> - enum thermal_device_mode tz_mode;
>
> switch (mode) {
> case PM_HIBERNATION_PREPARE:
> @@ -1469,11 +1468,7 @@ static int thermal_pm_notify(struct notifier_block *nb,
> case PM_POST_SUSPEND:
> atomic_set(&in_suspend, 0);
> list_for_each_entry(tz, &thermal_tz_list, node) {
> - tz_mode = THERMAL_DEVICE_ENABLED;
> - if (tz->ops->get_mode)
> - tz->ops->get_mode(tz, &tz_mode);
> -
> - if (tz_mode == THERMAL_DEVICE_DISABLED)
> + if (tz->mode == THERMAL_DEVICE_DISABLED)
> continue;
>
> thermal_zone_device_init(tz);
> diff --git a/drivers/thermal/thermal_of.c b/drivers/thermal/thermal_of.c
> index c495b1e48ef2..ba65d48a48cb 100644
> --- a/drivers/thermal/thermal_of.c
> +++ b/drivers/thermal/thermal_of.c
> @@ -267,14 +267,6 @@ static int of_thermal_unbind(struct thermal_zone_device *thermal,
> return 0;
> }
>
> -static int of_thermal_get_mode(struct thermal_zone_device *tz,
> - enum thermal_device_mode *mode)
> -{
> - *mode = tz->mode;
> -
> - return 0;
> -}
> -
> static int of_thermal_set_mode(struct thermal_zone_device *tz,
> enum thermal_device_mode mode)
> {
> @@ -389,7 +381,6 @@ static int of_thermal_get_crit_temp(struct thermal_zone_device *tz,
> }
>
> static struct thermal_zone_device_ops of_thermal_ops = {
> - .get_mode = of_thermal_get_mode,
> .set_mode = of_thermal_set_mode,
>
> .get_trip_type = of_thermal_get_trip_type,
> diff --git a/drivers/thermal/thermal_sysfs.c b/drivers/thermal/thermal_sysfs.c
> index aa99edb4dff7..096370977068 100644
> --- a/drivers/thermal/thermal_sysfs.c
> +++ b/drivers/thermal/thermal_sysfs.c
> @@ -49,18 +49,9 @@ static ssize_t
> mode_show(struct device *dev, struct device_attribute *attr, char *buf)
> {
> struct thermal_zone_device *tz = to_thermal_zone(dev);
> - enum thermal_device_mode mode;
> - int result;
> -
> - if (!tz->ops->get_mode)
> - return -EPERM;
>
> - result = tz->ops->get_mode(tz, &mode);
> - if (result)
> - return result;
> -
> - return sprintf(buf, "%s\n", mode == THERMAL_DEVICE_ENABLED ? "enabled"
> - : "disabled");
> + return sprintf(buf, "%s\n", tz->mode == THERMAL_DEVICE_ENABLED ?
> + "enabled" : "disabled");
> }
>
> static ssize_t
> @@ -428,30 +419,13 @@ static struct attribute_group thermal_zone_attribute_group = {
> .attrs = thermal_zone_dev_attrs,
> };
>
> -/* We expose mode only if .get_mode is present */
> static struct attribute *thermal_zone_mode_attrs[] = {
> &dev_attr_mode.attr,
> NULL,
> };
>
> -static umode_t thermal_zone_mode_is_visible(struct kobject *kobj,
> - struct attribute *attr,
> - int attrno)
> -{
> - struct device *dev = container_of(kobj, struct device, kobj);
> - struct thermal_zone_device *tz;
> -
> - tz = container_of(dev, struct thermal_zone_device, device);
> -
> - if (tz->ops->get_mode)
> - return attr->mode;
> -
> - return 0;
> -}
> -
> static struct attribute_group thermal_zone_mode_attribute_group = {
> .attrs = thermal_zone_mode_attrs,
> - .is_visible = thermal_zone_mode_is_visible,
> };
>
> /* We expose passive only if passive trips are present */
> diff --git a/include/linux/thermal.h b/include/linux/thermal.h
> index 5f91d7f04512..a808f6fa2777 100644
> --- a/include/linux/thermal.h
> +++ b/include/linux/thermal.h
> @@ -76,8 +76,6 @@ struct thermal_zone_device_ops {
> struct thermal_cooling_device *);
> int (*get_temp) (struct thermal_zone_device *, int *);
> int (*set_trips) (struct thermal_zone_device *, int, int);
> - int (*get_mode) (struct thermal_zone_device *,
> - enum thermal_device_mode *);
> int (*set_mode) (struct thermal_zone_device *,
> enum thermal_device_mode);
> int (*get_trip_type) (struct thermal_zone_device *, int,
On Thu, May 28, 2020 at 09:20:46PM +0200, Andrzej Pietrasiewicz wrote:
> Prepare for making the drivers not access tzd's private members.
>
> Signed-off-by: Andrzej Pietrasiewicz <[email protected]>
> ---
> drivers/thermal/thermal_core.c | 53 ++++++++++++++++++++++++++++++++++
> include/linux/thermal.h | 13 +++++++++
> 2 files changed, 66 insertions(+)
>
> diff --git a/drivers/thermal/thermal_core.c b/drivers/thermal/thermal_core.c
> index 14d3b1b94c4f..f2a5c5ee3455 100644
> --- a/drivers/thermal/thermal_core.c
> +++ b/drivers/thermal/thermal_core.c
> @@ -459,6 +459,59 @@ static void thermal_zone_device_reset(struct thermal_zone_device *tz)
> thermal_zone_device_init(tz);
> }
>
> +int thermal_zone_device_set_mode(struct thermal_zone_device *tz,
> + enum thermal_device_mode mode)
> +{
> + int ret = 0;
> +
> + mutex_lock(&tz->lock);
> +
> + /* do nothing if mode isn't changing */
> + if (mode == tz->mode) {
> + mutex_unlock(&tz->lock);
> +
Nit: unnecessary empty line.
> + return ret;
> + }
> +
> + if (tz->ops->set_mode)
> + ret = tz->ops->set_mode(tz, mode);
> +
> + if (!ret)
> + tz->mode = mode;
> +
> + mutex_unlock(&tz->lock);
> +
> + thermal_zone_device_update(tz, THERMAL_EVENT_UNSPECIFIED);
> +
> + return ret;
> +}
> +
> +int thermal_zone_device_enable(struct thermal_zone_device *tz)
> +{
> + return thermal_zone_device_set_mode(tz, THERMAL_DEVICE_ENABLED);
> +}
> +EXPORT_SYMBOL(thermal_zone_device_enable);
Other exports in thermal/ use EXPORT_SYMBOL_GPL.
> +
> +int thermal_zone_device_disable(struct thermal_zone_device *tz)
> +{
> + return thermal_zone_device_set_mode(tz, THERMAL_DEVICE_DISABLED);
> +}
> +EXPORT_SYMBOL(thermal_zone_device_disable);
> +
> +int thermal_zone_device_is_enabled(struct thermal_zone_device *tz)
> +{
> + enum thermal_device_mode mode;
> +
> + mutex_lock(&tz->lock);
> +
> + mode = tz->mode;
> +
> + mutex_unlock(&tz->lock);
> +
> + return mode == THERMAL_DEVICE_ENABLED;
> +}
> +EXPORT_SYMBOL(thermal_zone_device_is_enabled);
> +
> void thermal_zone_device_update(struct thermal_zone_device *tz,
> enum thermal_notify_event event)
> {
> diff --git a/include/linux/thermal.h b/include/linux/thermal.h
> index a808f6fa2777..df013c39ba9b 100644
> --- a/include/linux/thermal.h
> +++ b/include/linux/thermal.h
> @@ -416,6 +416,9 @@ int thermal_zone_get_offset(struct thermal_zone_device *tz);
>
> void thermal_cdev_update(struct thermal_cooling_device *);
> void thermal_notify_framework(struct thermal_zone_device *, int);
> +int thermal_zone_device_enable(struct thermal_zone_device *tz);
> +int thermal_zone_device_disable(struct thermal_zone_device *tz);
> +int thermal_zone_device_is_enabled(struct thermal_zone_device *tz);
> #else
> static inline struct thermal_zone_device *thermal_zone_device_register(
> const char *type, int trips, int mask, void *devdata,
> @@ -463,6 +466,16 @@ static inline void thermal_cdev_update(struct thermal_cooling_device *cdev)
> static inline void thermal_notify_framework(struct thermal_zone_device *tz,
> int trip)
> { }
> +
> +static inline int thermal_zone_device_enable(struct thermal_zone_device *tz)
> +{ return -ENODEV; }
> +
> +static inline int thermal_zone_device_disable(struct thermal_zone_device *tz)
> +{ return -ENODEV; }
> +
> +static inline int
> +thermal_zone_device_is_enabled(struct thermal_zone_device *tz)
> +{ return -ENODEV; }
> #endif /* CONFIG_THERMAL */
>
> #endif /* __THERMAL_H__ */
Hi Guenter,
W dniu 29.05.2020 o 17:42, Guenter Roeck pisze:
> On Thu, May 28, 2020 at 09:20:44PM +0200, Andrzej Pietrasiewicz wrote:
>> Prepare for eliminating get_mode().
>>
> Might be worthwhile to explain (not only in the subject) what you are
> doing here.
>
>> Signed-off-by: Andrzej Pietrasiewicz <[email protected]>
>> ---
>> drivers/acpi/thermal.c | 18 ++++++----------
>> .../ethernet/mellanox/mlxsw/core_thermal.c | 21 +++++++------------
>> drivers/platform/x86/acerhdf.c | 15 ++++++-------
>> drivers/thermal/da9062-thermal.c | 6 ++----
>> drivers/thermal/imx_thermal.c | 17 +++++++--------
>> .../intel/int340x_thermal/int3400_thermal.c | 12 +++--------
>> .../thermal/intel/intel_quark_dts_thermal.c | 16 +++++++-------
>> drivers/thermal/thermal_of.c | 10 +++------
>
> After this patch is applied on top of the thermal 'testing' branch,
> there are still local instances of thermal_device_mode in
> drivers/thermal/st/stm_thermal.c
> drivers/thermal/ti-soc-thermal/ti-thermal-common.c
>
> If there is a reason not to replace those, it might make sense to explain
> it here.
>
My understanding is that these two are sensor devices which are "plugged"
into their "parent" thermal zone device. The latter is the "proper" tzd.
They both use thermal_zone_of_device_ops instead of thermal_zone_device_ops.
The former doesn't even have get_mode(). The thermal core, when it calls
get_mode(), operates on the "parent" thermal zone devices.
Consequently, the drivers you mention use their "mode" members for
their private purpose, not for the purpose of storing the "parent"
thermal zone device mode.
Andrzej
Hi again,
W dniu 29.05.2020 o 18:08, Andrzej Pietrasiewicz pisze:
> Hi Guenter,
>
> W dniu 29.05.2020 o 17:42, Guenter Roeck pisze:
>> On Thu, May 28, 2020 at 09:20:44PM +0200, Andrzej Pietrasiewicz wrote:
>>> Prepare for eliminating get_mode().
>>>
>> Might be worthwhile to explain (not only in the subject) what you are
>> doing here.
>>
>>> Signed-off-by: Andrzej Pietrasiewicz <[email protected]>
>>> ---
>>> drivers/acpi/thermal.c | 18 ++++++----------
>>> .../ethernet/mellanox/mlxsw/core_thermal.c | 21 +++++++------------
>>> drivers/platform/x86/acerhdf.c | 15 ++++++-------
>>> drivers/thermal/da9062-thermal.c | 6 ++----
>>> drivers/thermal/imx_thermal.c | 17 +++++++--------
>>> .../intel/int340x_thermal/int3400_thermal.c | 12 +++--------
>>> .../thermal/intel/intel_quark_dts_thermal.c | 16 +++++++-------
>>> drivers/thermal/thermal_of.c | 10 +++------
>>
>> After this patch is applied on top of the thermal 'testing' branch,
>> there are still local instances of thermal_device_mode in
>> drivers/thermal/st/stm_thermal.c
>> drivers/thermal/ti-soc-thermal/ti-thermal-common.c
>>
>> If there is a reason not to replace those, it might make sense to explain
>> it here.
>>
>
> My understanding is that these two are sensor devices which are "plugged"
> into their "parent" thermal zone device. The latter is the "proper" tzd.
> They both use thermal_zone_of_device_ops instead of thermal_zone_device_ops.
> The former doesn't even have get_mode(). The thermal core, when it calls
> get_mode(), operates on the "parent" thermal zone devices.
>
> Consequently, the drivers you mention use their "mode" members for
> their private purpose, not for the purpose of storing the "parent"
> thermal zone device mode.
>
Let me also say it differently.
Both drivers which you mention use devm_thermal_zone_of_sensor_register().
It calls thermal_zone_of_sensor_register(), which "will search the list of
thermal zones described in device tree and look for the zone that refer to
the sensor device pointed by @dev->of_node as temperature providers. For
the zone pointing to the sensor node, the sensor will be added to the DT
thermal zone device." When a match is found thermal_zone_of_add_sensor()
is invoked, which (using thermal_zone_get_zone_by_name()) iterates over
all registered thermal_zone_devices. The one eventually found will be
returned and propagated to the original caller of
devm_thermal_zone_of_sensor_register(). The state of this returned
device is managed elsewhere (in that device's struct tzd). The "mode"
member you are referring to is thus unrelated.
Regards,
Andrzej
Hi Guenter,
W dniu 29.05.2020 o 17:49, Guenter Roeck pisze:
> On Thu, May 28, 2020 at 09:20:45PM +0200, Andrzej Pietrasiewicz wrote:
>> get_mode() is now redundant, as the state is stored in struct
>> thermal_zone_device.
>>
>> Consequently the "mode" attribute in sysfs can always be visible, because
>> it is always possible to get the mode from struct tzd.
>>
>> Signed-off-by: Andrzej Pietrasiewicz <[email protected]>
>
> There is a slight semantic change for the two drivers which still have
> a local copy of enum thermal_device_mode: Previously trying to read the
> mode for those would return -EPERM since they don't have a get_mode
> function. Now the global value for mode is returned, but I am not sure
> if it matches the local value.
Please see my replies to your comment about patch 4/11.
Regards,
Andrzej
On 5/29/20 10:21 AM, Andrzej Pietrasiewicz wrote:
> Hi again,
>
> W dniu 29.05.2020 o 18:08, Andrzej Pietrasiewicz pisze:
>> Hi Guenter,
>>
>> W dniu 29.05.2020 o 17:42, Guenter Roeck pisze:
>>> On Thu, May 28, 2020 at 09:20:44PM +0200, Andrzej Pietrasiewicz wrote:
>>>> Prepare for eliminating get_mode().
>>>>
>>> Might be worthwhile to explain (not only in the subject) what you are
>>> doing here.
>>>
>>>> Signed-off-by: Andrzej Pietrasiewicz <[email protected]>
>>>> ---
>>>> drivers/acpi/thermal.c | 18 ++++++----------
>>>> .../ethernet/mellanox/mlxsw/core_thermal.c | 21 +++++++------------
>>>> drivers/platform/x86/acerhdf.c | 15 ++++++-------
>>>> drivers/thermal/da9062-thermal.c | 6 ++----
>>>> drivers/thermal/imx_thermal.c | 17 +++++++--------
>>>> .../intel/int340x_thermal/int3400_thermal.c | 12 +++--------
>>>> .../thermal/intel/intel_quark_dts_thermal.c | 16 +++++++-------
>>>> drivers/thermal/thermal_of.c | 10 +++------
>>>
>>> After this patch is applied on top of the thermal 'testing' branch,
>>> there are still local instances of thermal_device_mode in
>>> drivers/thermal/st/stm_thermal.c
>>> drivers/thermal/ti-soc-thermal/ti-thermal-common.c
>>>
>>> If there is a reason not to replace those, it might make sense to explain
>>> it here.
>>>
>>
>> My understanding is that these two are sensor devices which are "plugged"
>> into their "parent" thermal zone device. The latter is the "proper" tzd.
>> They both use thermal_zone_of_device_ops instead of thermal_zone_device_ops.
>> The former doesn't even have get_mode(). The thermal core, when it calls
>> get_mode(), operates on the "parent" thermal zone devices.
>>
>> Consequently, the drivers you mention use their "mode" members for
>> their private purpose, not for the purpose of storing the "parent"
>> thermal zone device mode.
>>
>
> Let me also say it differently.
>
> Both drivers which you mention use devm_thermal_zone_of_sensor_register().
> It calls thermal_zone_of_sensor_register(), which "will search the list of
> thermal zones described in device tree and look for the zone that refer to
> the sensor device pointed by @dev->of_node as temperature providers. For
> the zone pointing to the sensor node, the sensor will be added to the DT
> thermal zone device." When a match is found thermal_zone_of_add_sensor()
> is invoked, which (using thermal_zone_get_zone_by_name()) iterates over
> all registered thermal_zone_devices. The one eventually found will be
> returned and propagated to the original caller of
> devm_thermal_zone_of_sensor_register(). The state of this returned
> device is managed elsewhere (in that device's struct tzd). The "mode"
> member you are referring to is thus unrelated.
>
Quite confusing, especially since the ti-soc driver doesn't seem to use
the variable at all after setting it, and the stm_thermal driver uses it
to reflect power status associated with suspend/resume. So, yes, I agree
this is fine.
Thanks,
Guenter
> Regards,
>
> Andrzej
On Thu, May 28, 2020 at 09:20:44PM +0200, Andrzej Pietrasiewicz wrote:
> Prepare for eliminating get_mode().
>
> Signed-off-by: Andrzej Pietrasiewicz <[email protected]>
Based on discussion:
Reviewed-by: Guenter Roeck <[email protected]>
Guenter
> ---
> drivers/acpi/thermal.c | 18 ++++++----------
> .../ethernet/mellanox/mlxsw/core_thermal.c | 21 +++++++------------
> drivers/platform/x86/acerhdf.c | 15 ++++++-------
> drivers/thermal/da9062-thermal.c | 6 ++----
> drivers/thermal/imx_thermal.c | 17 +++++++--------
> .../intel/int340x_thermal/int3400_thermal.c | 12 +++--------
> .../thermal/intel/intel_quark_dts_thermal.c | 16 +++++++-------
> drivers/thermal/thermal_of.c | 10 +++------
> 8 files changed, 44 insertions(+), 71 deletions(-)
>
> diff --git a/drivers/acpi/thermal.c b/drivers/acpi/thermal.c
> index fb46070c66d8..4ba273f49d87 100644
> --- a/drivers/acpi/thermal.c
> +++ b/drivers/acpi/thermal.c
> @@ -172,7 +172,6 @@ struct acpi_thermal {
> struct acpi_thermal_trips trips;
> struct acpi_handle_list devices;
> struct thermal_zone_device *thermal_zone;
> - enum thermal_device_mode mode;
> int kelvin_offset; /* in millidegrees */
> struct work_struct thermal_check_work;
> };
> @@ -500,7 +499,7 @@ static void acpi_thermal_check(void *data)
> {
> struct acpi_thermal *tz = data;
>
> - if (tz->mode != THERMAL_DEVICE_ENABLED)
> + if (tz->thermal_zone->mode != THERMAL_DEVICE_ENABLED)
> return;
>
> thermal_zone_device_update(tz->thermal_zone,
> @@ -529,12 +528,7 @@ static int thermal_get_temp(struct thermal_zone_device *thermal, int *temp)
> static int thermal_get_mode(struct thermal_zone_device *thermal,
> enum thermal_device_mode *mode)
> {
> - struct acpi_thermal *tz = thermal->devdata;
> -
> - if (!tz)
> - return -EINVAL;
> -
> - *mode = tz->mode;
> + *mode = thermal->mode;
>
> return 0;
> }
> @@ -556,11 +550,11 @@ static int thermal_set_mode(struct thermal_zone_device *thermal,
> if (mode == THERMAL_DEVICE_DISABLED)
> pr_warn("thermal zone will be disabled\n");
>
> - if (mode != tz->mode) {
> - tz->mode = mode;
> + if (mode != tz->thermal_zone->mode) {
> + tz->thermal_zone->mode = mode;
> ACPI_DEBUG_PRINT((ACPI_DB_INFO,
> "%s kernel ACPI thermal control\n",
> - tz->mode == THERMAL_DEVICE_ENABLED ?
> + tz->thermal_zone->mode == THERMAL_DEVICE_ENABLED ?
> "Enable" : "Disable"));
> acpi_thermal_check(tz);
> }
> @@ -912,7 +906,7 @@ static int acpi_thermal_register_thermal_zone(struct acpi_thermal *tz)
> goto remove_dev_link;
> }
>
> - tz->mode = THERMAL_DEVICE_ENABLED;
> + tz->thermal_zone->mode = THERMAL_DEVICE_ENABLED;
>
> dev_info(&tz->device->dev, "registered as thermal_zone%d\n",
> tz->thermal_zone->id);
> diff --git a/drivers/net/ethernet/mellanox/mlxsw/core_thermal.c b/drivers/net/ethernet/mellanox/mlxsw/core_thermal.c
> index ce0a6837daa3..aa082e8a0b13 100644
> --- a/drivers/net/ethernet/mellanox/mlxsw/core_thermal.c
> +++ b/drivers/net/ethernet/mellanox/mlxsw/core_thermal.c
> @@ -98,7 +98,6 @@ struct mlxsw_thermal_module {
> struct mlxsw_thermal *parent;
> struct thermal_zone_device *tzdev;
> struct mlxsw_thermal_trip trips[MLXSW_THERMAL_NUM_TRIPS];
> - enum thermal_device_mode mode;
> int module; /* Module or gearbox number */
> };
>
> @@ -110,7 +109,6 @@ struct mlxsw_thermal {
> struct thermal_cooling_device *cdevs[MLXSW_MFCR_PWMS_MAX];
> u8 cooling_levels[MLXSW_THERMAL_MAX_STATE + 1];
> struct mlxsw_thermal_trip trips[MLXSW_THERMAL_NUM_TRIPS];
> - enum thermal_device_mode mode;
> struct mlxsw_thermal_module *tz_module_arr;
> u8 tz_module_num;
> struct mlxsw_thermal_module *tz_gearbox_arr;
> @@ -280,9 +278,7 @@ static int mlxsw_thermal_unbind(struct thermal_zone_device *tzdev,
> static int mlxsw_thermal_get_mode(struct thermal_zone_device *tzdev,
> enum thermal_device_mode *mode)
> {
> - struct mlxsw_thermal *thermal = tzdev->devdata;
> -
> - *mode = thermal->mode;
> + *mode = tzdev->mode;
>
> return 0;
> }
> @@ -299,9 +295,9 @@ static int mlxsw_thermal_set_mode(struct thermal_zone_device *tzdev,
> else
> tzdev->polling_delay = 0;
>
> + tzdev->mode = mode;
> mutex_unlock(&tzdev->lock);
>
> - thermal->mode = mode;
> thermal_zone_device_update(tzdev, THERMAL_EVENT_UNSPECIFIED);
>
> return 0;
> @@ -469,9 +465,7 @@ static int mlxsw_thermal_module_unbind(struct thermal_zone_device *tzdev,
> static int mlxsw_thermal_module_mode_get(struct thermal_zone_device *tzdev,
> enum thermal_device_mode *mode)
> {
> - struct mlxsw_thermal_module *tz = tzdev->devdata;
> -
> - *mode = tz->mode;
> + *mode = tzdev->mode;
>
> return 0;
> }
> @@ -489,9 +483,10 @@ static int mlxsw_thermal_module_mode_set(struct thermal_zone_device *tzdev,
> else
> tzdev->polling_delay = 0;
>
> + tzdev->mode = mode;
> +
> mutex_unlock(&tzdev->lock);
>
> - tz->mode = mode;
> thermal_zone_device_update(tzdev, THERMAL_EVENT_UNSPECIFIED);
>
> return 0;
> @@ -765,7 +760,7 @@ mlxsw_thermal_module_tz_init(struct mlxsw_thermal_module *module_tz)
> return err;
> }
>
> - module_tz->mode = THERMAL_DEVICE_ENABLED;
> + module_tz->tzdev->mode = THERMAL_DEVICE_ENABLED;
> return 0;
> }
>
> @@ -881,7 +876,7 @@ mlxsw_thermal_gearbox_tz_init(struct mlxsw_thermal_module *gearbox_tz)
> if (IS_ERR(gearbox_tz->tzdev))
> return PTR_ERR(gearbox_tz->tzdev);
>
> - gearbox_tz->mode = THERMAL_DEVICE_ENABLED;
> + gearbox_tz->tzdev->mode = THERMAL_DEVICE_ENABLED;
> return 0;
> }
>
> @@ -1050,7 +1045,7 @@ int mlxsw_thermal_init(struct mlxsw_core *core,
> if (err)
> goto err_unreg_modules_tzdev;
>
> - thermal->mode = THERMAL_DEVICE_ENABLED;
> + thermal->tzdev->mode = THERMAL_DEVICE_ENABLED;
> *p_thermal = thermal;
> return 0;
>
> diff --git a/drivers/platform/x86/acerhdf.c b/drivers/platform/x86/acerhdf.c
> index 830a8b060e74..97b288485837 100644
> --- a/drivers/platform/x86/acerhdf.c
> +++ b/drivers/platform/x86/acerhdf.c
> @@ -68,7 +68,6 @@ static int kernelmode = 1;
> #else
> static int kernelmode;
> #endif
> -static enum thermal_device_mode thermal_mode;
>
> static unsigned int interval = 10;
> static unsigned int fanon = 60000;
> @@ -398,15 +397,16 @@ static inline void acerhdf_revert_to_bios_mode(void)
> {
> acerhdf_change_fanstate(ACERHDF_FAN_AUTO);
> kernelmode = 0;
> - thermal_mode = THERMAL_DEVICE_DISABLED;
> - if (thz_dev)
> + if (thz_dev) {
> + thz_dev->mode = THERMAL_DEVICE_DISABLED;
> thz_dev->polling_delay = 0;
> + }
> pr_notice("kernel mode fan control OFF\n");
> }
> static inline void acerhdf_enable_kernelmode(void)
> {
> kernelmode = 1;
> - thermal_mode = THERMAL_DEVICE_ENABLED;
> + thz_dev->mode = THERMAL_DEVICE_ENABLED;
>
> thz_dev->polling_delay = interval*1000;
> thermal_zone_device_update(thz_dev, THERMAL_EVENT_UNSPECIFIED);
> @@ -419,7 +419,7 @@ static int acerhdf_get_mode(struct thermal_zone_device *thermal,
> if (verbose)
> pr_notice("kernel mode fan control %d\n", kernelmode);
>
> - *mode = thermal_mode;
> + *mode = thermal->mode;
>
> return 0;
> }
> @@ -741,8 +741,6 @@ static int __init acerhdf_register_thermal(void)
> if (IS_ERR(cl_dev))
> return -EINVAL;
>
> - thermal_mode = kernelmode ?
> - THERMAL_DEVICE_ENABLED : THERMAL_DEVICE_DISABLED;
> thz_dev = thermal_zone_device_register("acerhdf", 2, 0, NULL,
> &acerhdf_dev_ops,
> &acerhdf_zone_params, 0,
> @@ -750,6 +748,9 @@ static int __init acerhdf_register_thermal(void)
> if (IS_ERR(thz_dev))
> return -EINVAL;
>
> + thz_dev->mode = kernelmode ?
> + THERMAL_DEVICE_ENABLED : THERMAL_DEVICE_DISABLED;
> +
> if (strcmp(thz_dev->governor->name,
> acerhdf_zone_params.governor_name)) {
> pr_err("Didn't get thermal governor %s, perhaps not compiled into thermal subsystem.\n",
> diff --git a/drivers/thermal/da9062-thermal.c b/drivers/thermal/da9062-thermal.c
> index c32709badeda..a14c7981c7c7 100644
> --- a/drivers/thermal/da9062-thermal.c
> +++ b/drivers/thermal/da9062-thermal.c
> @@ -49,7 +49,6 @@ struct da9062_thermal {
> struct da9062 *hw;
> struct delayed_work work;
> struct thermal_zone_device *zone;
> - enum thermal_device_mode mode;
> struct mutex lock; /* protection for da9062_thermal temperature */
> int temperature;
> int irq;
> @@ -124,8 +123,7 @@ static irqreturn_t da9062_thermal_irq_handler(int irq, void *data)
> static int da9062_thermal_get_mode(struct thermal_zone_device *z,
> enum thermal_device_mode *mode)
> {
> - struct da9062_thermal *thermal = z->devdata;
> - *mode = thermal->mode;
> + *mode = z->mode;
> return 0;
> }
>
> @@ -233,7 +231,6 @@ static int da9062_thermal_probe(struct platform_device *pdev)
>
> thermal->config = match->data;
> thermal->hw = chip;
> - thermal->mode = THERMAL_DEVICE_ENABLED;
> thermal->dev = &pdev->dev;
>
> INIT_DELAYED_WORK(&thermal->work, da9062_thermal_poll_on);
> @@ -248,6 +245,7 @@ static int da9062_thermal_probe(struct platform_device *pdev)
> ret = PTR_ERR(thermal->zone);
> goto err;
> }
> + thermal->zone->mode = THERMAL_DEVICE_ENABLED;
>
> dev_dbg(&pdev->dev,
> "TJUNC temperature polling period set at %d ms\n",
> diff --git a/drivers/thermal/imx_thermal.c b/drivers/thermal/imx_thermal.c
> index e761c9b42217..9a1114d721b6 100644
> --- a/drivers/thermal/imx_thermal.c
> +++ b/drivers/thermal/imx_thermal.c
> @@ -197,7 +197,6 @@ struct imx_thermal_data {
> struct cpufreq_policy *policy;
> struct thermal_zone_device *tz;
> struct thermal_cooling_device *cdev;
> - enum thermal_device_mode mode;
> struct regmap *tempmon;
> u32 c1, c2; /* See formula in imx_init_calib() */
> int temp_passive;
> @@ -256,7 +255,7 @@ static int imx_get_temp(struct thermal_zone_device *tz, int *temp)
> bool wait;
> u32 val;
>
> - if (data->mode == THERMAL_DEVICE_ENABLED) {
> + if (tz->mode == THERMAL_DEVICE_ENABLED) {
> /* Check if a measurement is currently in progress */
> regmap_read(map, soc_data->temp_data, &val);
> wait = !(val & soc_data->temp_valid_mask);
> @@ -283,7 +282,7 @@ static int imx_get_temp(struct thermal_zone_device *tz, int *temp)
>
> regmap_read(map, soc_data->temp_data, &val);
>
> - if (data->mode != THERMAL_DEVICE_ENABLED) {
> + if (tz->mode != THERMAL_DEVICE_ENABLED) {
> regmap_write(map, soc_data->sensor_ctrl + REG_CLR,
> soc_data->measure_temp_mask);
> regmap_write(map, soc_data->sensor_ctrl + REG_SET,
> @@ -334,9 +333,7 @@ static int imx_get_temp(struct thermal_zone_device *tz, int *temp)
> static int imx_get_mode(struct thermal_zone_device *tz,
> enum thermal_device_mode *mode)
> {
> - struct imx_thermal_data *data = tz->devdata;
> -
> - *mode = data->mode;
> + *mode = tz->mode;
>
> return 0;
> }
> @@ -376,7 +373,7 @@ static int imx_set_mode(struct thermal_zone_device *tz,
> }
> }
>
> - data->mode = mode;
> + tz->mode = mode;
> thermal_zone_device_update(tz, THERMAL_EVENT_UNSPECIFIED);
>
> return 0;
> @@ -831,7 +828,7 @@ static int imx_thermal_probe(struct platform_device *pdev)
> data->socdata->measure_temp_mask);
>
> data->irq_enabled = true;
> - data->mode = THERMAL_DEVICE_ENABLED;
> + data->tz->mode = THERMAL_DEVICE_ENABLED;
>
> ret = devm_request_threaded_irq(&pdev->dev, data->irq,
> imx_thermal_alarm_irq, imx_thermal_alarm_irq_thread,
> @@ -885,7 +882,7 @@ static int __maybe_unused imx_thermal_suspend(struct device *dev)
> data->socdata->measure_temp_mask);
> regmap_write(map, data->socdata->sensor_ctrl + REG_SET,
> data->socdata->power_down_mask);
> - data->mode = THERMAL_DEVICE_DISABLED;
> + data->tz->mode = THERMAL_DEVICE_DISABLED;
> clk_disable_unprepare(data->thermal_clk);
>
> return 0;
> @@ -905,7 +902,7 @@ static int __maybe_unused imx_thermal_resume(struct device *dev)
> data->socdata->power_down_mask);
> regmap_write(map, data->socdata->sensor_ctrl + REG_SET,
> data->socdata->measure_temp_mask);
> - data->mode = THERMAL_DEVICE_ENABLED;
> + data->tz->mode = THERMAL_DEVICE_ENABLED;
>
> return 0;
> }
> diff --git a/drivers/thermal/intel/int340x_thermal/int3400_thermal.c b/drivers/thermal/intel/int340x_thermal/int3400_thermal.c
> index e84faaadff87..f65b2fc09198 100644
> --- a/drivers/thermal/intel/int340x_thermal/int3400_thermal.c
> +++ b/drivers/thermal/intel/int340x_thermal/int3400_thermal.c
> @@ -48,7 +48,6 @@ struct int3400_thermal_priv {
> struct acpi_device *adev;
> struct platform_device *pdev;
> struct thermal_zone_device *thermal;
> - enum thermal_device_mode mode;
> int art_count;
> struct art *arts;
> int trt_count;
> @@ -381,12 +380,7 @@ static int int3400_thermal_get_temp(struct thermal_zone_device *thermal,
> static int int3400_thermal_get_mode(struct thermal_zone_device *thermal,
> enum thermal_device_mode *mode)
> {
> - struct int3400_thermal_priv *priv = thermal->devdata;
> -
> - if (!priv)
> - return -EINVAL;
> -
> - *mode = priv->mode;
> + *mode = thermal->mode;
>
> return 0;
> }
> @@ -404,8 +398,8 @@ static int int3400_thermal_set_mode(struct thermal_zone_device *thermal,
> mode != THERMAL_DEVICE_DISABLED)
> return -EINVAL;
>
> - if (mode != priv->mode) {
> - priv->mode = mode;
> + if (mode != thermal->mode) {
> + thermal->mode = mode;
> result = int3400_thermal_run_osc(priv->adev->handle,
> priv->current_uuid_index,
> mode == THERMAL_DEVICE_ENABLED);
> diff --git a/drivers/thermal/intel/intel_quark_dts_thermal.c b/drivers/thermal/intel/intel_quark_dts_thermal.c
> index d704fc104cfd..d77cb3df5ade 100644
> --- a/drivers/thermal/intel/intel_quark_dts_thermal.c
> +++ b/drivers/thermal/intel/intel_quark_dts_thermal.c
> @@ -103,7 +103,6 @@ struct soc_sensor_entry {
> bool locked;
> u32 store_ptps;
> u32 store_dts_enable;
> - enum thermal_device_mode mode;
> struct thermal_zone_device *tzone;
> };
>
> @@ -128,7 +127,7 @@ static int soc_dts_enable(struct thermal_zone_device *tzd)
> return ret;
>
> if (out & QRK_DTS_ENABLE_BIT) {
> - aux_entry->mode = THERMAL_DEVICE_ENABLED;
> + tzd->mode = THERMAL_DEVICE_ENABLED;
> return 0;
> }
>
> @@ -139,9 +138,9 @@ static int soc_dts_enable(struct thermal_zone_device *tzd)
> if (ret)
> return ret;
>
> - aux_entry->mode = THERMAL_DEVICE_ENABLED;
> + tzd->mode = THERMAL_DEVICE_ENABLED;
> } else {
> - aux_entry->mode = THERMAL_DEVICE_DISABLED;
> + tzd->mode = THERMAL_DEVICE_DISABLED;
> pr_info("DTS is locked. Cannot enable DTS\n");
> ret = -EPERM;
> }
> @@ -161,7 +160,7 @@ static int soc_dts_disable(struct thermal_zone_device *tzd)
> return ret;
>
> if (!(out & QRK_DTS_ENABLE_BIT)) {
> - aux_entry->mode = THERMAL_DEVICE_DISABLED;
> + tzd->mode = THERMAL_DEVICE_DISABLED;
> return 0;
> }
>
> @@ -173,9 +172,9 @@ static int soc_dts_disable(struct thermal_zone_device *tzd)
> if (ret)
> return ret;
>
> - aux_entry->mode = THERMAL_DEVICE_DISABLED;
> + tzd->mode = THERMAL_DEVICE_DISABLED;
> } else {
> - aux_entry->mode = THERMAL_DEVICE_ENABLED;
> + tzd->mode = THERMAL_DEVICE_ENABLED;
> pr_info("DTS is locked. Cannot disable DTS\n");
> ret = -EPERM;
> }
> @@ -312,8 +311,7 @@ static int sys_get_curr_temp(struct thermal_zone_device *tzd,
> static int sys_get_mode(struct thermal_zone_device *tzd,
> enum thermal_device_mode *mode)
> {
> - struct soc_sensor_entry *aux_entry = tzd->devdata;
> - *mode = aux_entry->mode;
> + *mode = tzd->mode;
> return 0;
> }
>
> diff --git a/drivers/thermal/thermal_of.c b/drivers/thermal/thermal_of.c
> index ddf88dbe7ba2..c495b1e48ef2 100644
> --- a/drivers/thermal/thermal_of.c
> +++ b/drivers/thermal/thermal_of.c
> @@ -51,7 +51,6 @@ struct __thermal_bind_params {
>
> /**
> * struct __thermal_zone - internal representation of a thermal zone
> - * @mode: current thermal zone device mode (enabled/disabled)
> * @passive_delay: polling interval while passive cooling is activated
> * @polling_delay: zone polling interval
> * @slope: slope of the temperature adjustment curve
> @@ -65,7 +64,6 @@ struct __thermal_bind_params {
> */
>
> struct __thermal_zone {
> - enum thermal_device_mode mode;
> int passive_delay;
> int polling_delay;
> int slope;
> @@ -272,9 +270,7 @@ static int of_thermal_unbind(struct thermal_zone_device *thermal,
> static int of_thermal_get_mode(struct thermal_zone_device *tz,
> enum thermal_device_mode *mode)
> {
> - struct __thermal_zone *data = tz->devdata;
> -
> - *mode = data->mode;
> + *mode = tz->mode;
>
> return 0;
> }
> @@ -296,7 +292,7 @@ static int of_thermal_set_mode(struct thermal_zone_device *tz,
>
> mutex_unlock(&tz->lock);
>
> - data->mode = mode;
> + tz->mode = mode;
> thermal_zone_device_update(tz, THERMAL_EVENT_UNSPECIFIED);
>
> return 0;
> @@ -979,7 +975,6 @@ __init *thermal_of_build_thermal_zone(struct device_node *np)
>
> finish:
> of_node_put(child);
> - tz->mode = THERMAL_DEVICE_DISABLED;
>
> return tz;
>
> @@ -1134,6 +1129,7 @@ int __init of_parse_thermal_zones(void)
> of_thermal_free_zone(tz);
> /* attempting to build remaining zones still */
> }
> + zone->mode = THERMAL_DEVICE_DISABLED;
> }
> of_node_put(np);
>
On Thu, May 28, 2020 at 09:20:45PM +0200, Andrzej Pietrasiewicz wrote:
> get_mode() is now redundant, as the state is stored in struct
> thermal_zone_device.
>
> Consequently the "mode" attribute in sysfs can always be visible, because
> it is always possible to get the mode from struct tzd.
>
> Signed-off-by: Andrzej Pietrasiewicz <[email protected]>
Based on separate feedback/dscussion:
Reviewed-by: Guenter Roeck <[email protected]>
Guenter
> ---
> drivers/acpi/thermal.c | 9 ------
> .../ethernet/mellanox/mlxsw/core_thermal.c | 19 ------------
> drivers/platform/x86/acerhdf.c | 12 --------
> drivers/thermal/da9062-thermal.c | 8 -----
> drivers/thermal/imx_thermal.c | 9 ------
> .../intel/int340x_thermal/int3400_thermal.c | 9 ------
> .../thermal/intel/intel_quark_dts_thermal.c | 8 -----
> drivers/thermal/thermal_core.c | 7 +----
> drivers/thermal/thermal_of.c | 9 ------
> drivers/thermal/thermal_sysfs.c | 30 ++-----------------
> include/linux/thermal.h | 2 --
> 11 files changed, 3 insertions(+), 119 deletions(-)
>
> diff --git a/drivers/acpi/thermal.c b/drivers/acpi/thermal.c
> index 4ba273f49d87..592be97c4456 100644
> --- a/drivers/acpi/thermal.c
> +++ b/drivers/acpi/thermal.c
> @@ -525,14 +525,6 @@ static int thermal_get_temp(struct thermal_zone_device *thermal, int *temp)
> return 0;
> }
>
> -static int thermal_get_mode(struct thermal_zone_device *thermal,
> - enum thermal_device_mode *mode)
> -{
> - *mode = thermal->mode;
> -
> - return 0;
> -}
> -
> static int thermal_set_mode(struct thermal_zone_device *thermal,
> enum thermal_device_mode mode)
> {
> @@ -847,7 +839,6 @@ static struct thermal_zone_device_ops acpi_thermal_zone_ops = {
> .bind = acpi_thermal_bind_cooling_device,
> .unbind = acpi_thermal_unbind_cooling_device,
> .get_temp = thermal_get_temp,
> - .get_mode = thermal_get_mode,
> .set_mode = thermal_set_mode,
> .get_trip_type = thermal_get_trip_type,
> .get_trip_temp = thermal_get_trip_temp,
> diff --git a/drivers/net/ethernet/mellanox/mlxsw/core_thermal.c b/drivers/net/ethernet/mellanox/mlxsw/core_thermal.c
> index aa082e8a0b13..6e26678ac312 100644
> --- a/drivers/net/ethernet/mellanox/mlxsw/core_thermal.c
> +++ b/drivers/net/ethernet/mellanox/mlxsw/core_thermal.c
> @@ -275,14 +275,6 @@ static int mlxsw_thermal_unbind(struct thermal_zone_device *tzdev,
> return 0;
> }
>
> -static int mlxsw_thermal_get_mode(struct thermal_zone_device *tzdev,
> - enum thermal_device_mode *mode)
> -{
> - *mode = tzdev->mode;
> -
> - return 0;
> -}
> -
> static int mlxsw_thermal_set_mode(struct thermal_zone_device *tzdev,
> enum thermal_device_mode mode)
> {
> @@ -403,7 +395,6 @@ static int mlxsw_thermal_trend_get(struct thermal_zone_device *tzdev,
> static struct thermal_zone_device_ops mlxsw_thermal_ops = {
> .bind = mlxsw_thermal_bind,
> .unbind = mlxsw_thermal_unbind,
> - .get_mode = mlxsw_thermal_get_mode,
> .set_mode = mlxsw_thermal_set_mode,
> .get_temp = mlxsw_thermal_get_temp,
> .get_trip_type = mlxsw_thermal_get_trip_type,
> @@ -462,14 +453,6 @@ static int mlxsw_thermal_module_unbind(struct thermal_zone_device *tzdev,
> return err;
> }
>
> -static int mlxsw_thermal_module_mode_get(struct thermal_zone_device *tzdev,
> - enum thermal_device_mode *mode)
> -{
> - *mode = tzdev->mode;
> -
> - return 0;
> -}
> -
> static int mlxsw_thermal_module_mode_set(struct thermal_zone_device *tzdev,
> enum thermal_device_mode mode)
> {
> @@ -591,7 +574,6 @@ mlxsw_thermal_module_trip_hyst_set(struct thermal_zone_device *tzdev, int trip,
> static struct thermal_zone_device_ops mlxsw_thermal_module_ops = {
> .bind = mlxsw_thermal_module_bind,
> .unbind = mlxsw_thermal_module_unbind,
> - .get_mode = mlxsw_thermal_module_mode_get,
> .set_mode = mlxsw_thermal_module_mode_set,
> .get_temp = mlxsw_thermal_module_temp_get,
> .get_trip_type = mlxsw_thermal_module_trip_type_get,
> @@ -630,7 +612,6 @@ static int mlxsw_thermal_gearbox_temp_get(struct thermal_zone_device *tzdev,
> static struct thermal_zone_device_ops mlxsw_thermal_gearbox_ops = {
> .bind = mlxsw_thermal_module_bind,
> .unbind = mlxsw_thermal_module_unbind,
> - .get_mode = mlxsw_thermal_module_mode_get,
> .set_mode = mlxsw_thermal_module_mode_set,
> .get_temp = mlxsw_thermal_gearbox_temp_get,
> .get_trip_type = mlxsw_thermal_module_trip_type_get,
> diff --git a/drivers/platform/x86/acerhdf.c b/drivers/platform/x86/acerhdf.c
> index 97b288485837..32c5fe16b7f7 100644
> --- a/drivers/platform/x86/acerhdf.c
> +++ b/drivers/platform/x86/acerhdf.c
> @@ -413,17 +413,6 @@ static inline void acerhdf_enable_kernelmode(void)
> pr_notice("kernel mode fan control ON\n");
> }
>
> -static int acerhdf_get_mode(struct thermal_zone_device *thermal,
> - enum thermal_device_mode *mode)
> -{
> - if (verbose)
> - pr_notice("kernel mode fan control %d\n", kernelmode);
> -
> - *mode = thermal->mode;
> -
> - return 0;
> -}
> -
> /*
> * set operation mode;
> * enabled: the thermal layer of the kernel takes care about
> @@ -490,7 +479,6 @@ static struct thermal_zone_device_ops acerhdf_dev_ops = {
> .bind = acerhdf_bind,
> .unbind = acerhdf_unbind,
> .get_temp = acerhdf_get_ec_temp,
> - .get_mode = acerhdf_get_mode,
> .set_mode = acerhdf_set_mode,
> .get_trip_type = acerhdf_get_trip_type,
> .get_trip_hyst = acerhdf_get_trip_hyst,
> diff --git a/drivers/thermal/da9062-thermal.c b/drivers/thermal/da9062-thermal.c
> index a14c7981c7c7..a7ac8afb063e 100644
> --- a/drivers/thermal/da9062-thermal.c
> +++ b/drivers/thermal/da9062-thermal.c
> @@ -120,13 +120,6 @@ static irqreturn_t da9062_thermal_irq_handler(int irq, void *data)
> return IRQ_HANDLED;
> }
>
> -static int da9062_thermal_get_mode(struct thermal_zone_device *z,
> - enum thermal_device_mode *mode)
> -{
> - *mode = z->mode;
> - return 0;
> -}
> -
> static int da9062_thermal_get_trip_type(struct thermal_zone_device *z,
> int trip,
> enum thermal_trip_type *type)
> @@ -179,7 +172,6 @@ static int da9062_thermal_get_temp(struct thermal_zone_device *z,
>
> static struct thermal_zone_device_ops da9062_thermal_ops = {
> .get_temp = da9062_thermal_get_temp,
> - .get_mode = da9062_thermal_get_mode,
> .get_trip_type = da9062_thermal_get_trip_type,
> .get_trip_temp = da9062_thermal_get_trip_temp,
> };
> diff --git a/drivers/thermal/imx_thermal.c b/drivers/thermal/imx_thermal.c
> index 9a1114d721b6..2c7ee5da608a 100644
> --- a/drivers/thermal/imx_thermal.c
> +++ b/drivers/thermal/imx_thermal.c
> @@ -330,14 +330,6 @@ static int imx_get_temp(struct thermal_zone_device *tz, int *temp)
> return 0;
> }
>
> -static int imx_get_mode(struct thermal_zone_device *tz,
> - enum thermal_device_mode *mode)
> -{
> - *mode = tz->mode;
> -
> - return 0;
> -}
> -
> static int imx_set_mode(struct thermal_zone_device *tz,
> enum thermal_device_mode mode)
> {
> @@ -464,7 +456,6 @@ static struct thermal_zone_device_ops imx_tz_ops = {
> .bind = imx_bind,
> .unbind = imx_unbind,
> .get_temp = imx_get_temp,
> - .get_mode = imx_get_mode,
> .set_mode = imx_set_mode,
> .get_trip_type = imx_get_trip_type,
> .get_trip_temp = imx_get_trip_temp,
> diff --git a/drivers/thermal/intel/int340x_thermal/int3400_thermal.c b/drivers/thermal/intel/int340x_thermal/int3400_thermal.c
> index f65b2fc09198..9a622aaf29dd 100644
> --- a/drivers/thermal/intel/int340x_thermal/int3400_thermal.c
> +++ b/drivers/thermal/intel/int340x_thermal/int3400_thermal.c
> @@ -377,14 +377,6 @@ static int int3400_thermal_get_temp(struct thermal_zone_device *thermal,
> return 0;
> }
>
> -static int int3400_thermal_get_mode(struct thermal_zone_device *thermal,
> - enum thermal_device_mode *mode)
> -{
> - *mode = thermal->mode;
> -
> - return 0;
> -}
> -
> static int int3400_thermal_set_mode(struct thermal_zone_device *thermal,
> enum thermal_device_mode mode)
> {
> @@ -412,7 +404,6 @@ static int int3400_thermal_set_mode(struct thermal_zone_device *thermal,
>
> static struct thermal_zone_device_ops int3400_thermal_ops = {
> .get_temp = int3400_thermal_get_temp,
> - .get_mode = int3400_thermal_get_mode,
> .set_mode = int3400_thermal_set_mode,
> };
>
> diff --git a/drivers/thermal/intel/intel_quark_dts_thermal.c b/drivers/thermal/intel/intel_quark_dts_thermal.c
> index d77cb3df5ade..c4879b4bfbf1 100644
> --- a/drivers/thermal/intel/intel_quark_dts_thermal.c
> +++ b/drivers/thermal/intel/intel_quark_dts_thermal.c
> @@ -308,13 +308,6 @@ static int sys_get_curr_temp(struct thermal_zone_device *tzd,
> return 0;
> }
>
> -static int sys_get_mode(struct thermal_zone_device *tzd,
> - enum thermal_device_mode *mode)
> -{
> - *mode = tzd->mode;
> - return 0;
> -}
> -
> static int sys_set_mode(struct thermal_zone_device *tzd,
> enum thermal_device_mode mode)
> {
> @@ -336,7 +329,6 @@ static struct thermal_zone_device_ops tzone_ops = {
> .get_trip_type = sys_get_trip_type,
> .set_trip_temp = sys_set_trip_temp,
> .get_crit_temp = sys_get_crit_temp,
> - .get_mode = sys_get_mode,
> .set_mode = sys_set_mode,
> };
>
> diff --git a/drivers/thermal/thermal_core.c b/drivers/thermal/thermal_core.c
> index b71196eaf90e..14d3b1b94c4f 100644
> --- a/drivers/thermal/thermal_core.c
> +++ b/drivers/thermal/thermal_core.c
> @@ -1456,7 +1456,6 @@ static int thermal_pm_notify(struct notifier_block *nb,
> unsigned long mode, void *_unused)
> {
> struct thermal_zone_device *tz;
> - enum thermal_device_mode tz_mode;
>
> switch (mode) {
> case PM_HIBERNATION_PREPARE:
> @@ -1469,11 +1468,7 @@ static int thermal_pm_notify(struct notifier_block *nb,
> case PM_POST_SUSPEND:
> atomic_set(&in_suspend, 0);
> list_for_each_entry(tz, &thermal_tz_list, node) {
> - tz_mode = THERMAL_DEVICE_ENABLED;
> - if (tz->ops->get_mode)
> - tz->ops->get_mode(tz, &tz_mode);
> -
> - if (tz_mode == THERMAL_DEVICE_DISABLED)
> + if (tz->mode == THERMAL_DEVICE_DISABLED)
> continue;
>
> thermal_zone_device_init(tz);
> diff --git a/drivers/thermal/thermal_of.c b/drivers/thermal/thermal_of.c
> index c495b1e48ef2..ba65d48a48cb 100644
> --- a/drivers/thermal/thermal_of.c
> +++ b/drivers/thermal/thermal_of.c
> @@ -267,14 +267,6 @@ static int of_thermal_unbind(struct thermal_zone_device *thermal,
> return 0;
> }
>
> -static int of_thermal_get_mode(struct thermal_zone_device *tz,
> - enum thermal_device_mode *mode)
> -{
> - *mode = tz->mode;
> -
> - return 0;
> -}
> -
> static int of_thermal_set_mode(struct thermal_zone_device *tz,
> enum thermal_device_mode mode)
> {
> @@ -389,7 +381,6 @@ static int of_thermal_get_crit_temp(struct thermal_zone_device *tz,
> }
>
> static struct thermal_zone_device_ops of_thermal_ops = {
> - .get_mode = of_thermal_get_mode,
> .set_mode = of_thermal_set_mode,
>
> .get_trip_type = of_thermal_get_trip_type,
> diff --git a/drivers/thermal/thermal_sysfs.c b/drivers/thermal/thermal_sysfs.c
> index aa99edb4dff7..096370977068 100644
> --- a/drivers/thermal/thermal_sysfs.c
> +++ b/drivers/thermal/thermal_sysfs.c
> @@ -49,18 +49,9 @@ static ssize_t
> mode_show(struct device *dev, struct device_attribute *attr, char *buf)
> {
> struct thermal_zone_device *tz = to_thermal_zone(dev);
> - enum thermal_device_mode mode;
> - int result;
> -
> - if (!tz->ops->get_mode)
> - return -EPERM;
>
> - result = tz->ops->get_mode(tz, &mode);
> - if (result)
> - return result;
> -
> - return sprintf(buf, "%s\n", mode == THERMAL_DEVICE_ENABLED ? "enabled"
> - : "disabled");
> + return sprintf(buf, "%s\n", tz->mode == THERMAL_DEVICE_ENABLED ?
> + "enabled" : "disabled");
> }
>
> static ssize_t
> @@ -428,30 +419,13 @@ static struct attribute_group thermal_zone_attribute_group = {
> .attrs = thermal_zone_dev_attrs,
> };
>
> -/* We expose mode only if .get_mode is present */
> static struct attribute *thermal_zone_mode_attrs[] = {
> &dev_attr_mode.attr,
> NULL,
> };
>
> -static umode_t thermal_zone_mode_is_visible(struct kobject *kobj,
> - struct attribute *attr,
> - int attrno)
> -{
> - struct device *dev = container_of(kobj, struct device, kobj);
> - struct thermal_zone_device *tz;
> -
> - tz = container_of(dev, struct thermal_zone_device, device);
> -
> - if (tz->ops->get_mode)
> - return attr->mode;
> -
> - return 0;
> -}
> -
> static struct attribute_group thermal_zone_mode_attribute_group = {
> .attrs = thermal_zone_mode_attrs,
> - .is_visible = thermal_zone_mode_is_visible,
> };
>
> /* We expose passive only if passive trips are present */
> diff --git a/include/linux/thermal.h b/include/linux/thermal.h
> index 5f91d7f04512..a808f6fa2777 100644
> --- a/include/linux/thermal.h
> +++ b/include/linux/thermal.h
> @@ -76,8 +76,6 @@ struct thermal_zone_device_ops {
> struct thermal_cooling_device *);
> int (*get_temp) (struct thermal_zone_device *, int *);
> int (*set_trips) (struct thermal_zone_device *, int, int);
> - int (*get_mode) (struct thermal_zone_device *,
> - enum thermal_device_mode *);
> int (*set_mode) (struct thermal_zone_device *,
> enum thermal_device_mode);
> int (*get_trip_type) (struct thermal_zone_device *, int,
Hi,
28. Mai 2020 21:21, "Andrzej Pietrasiewicz" <[email protected]> schrieb:
[...]
> This v4 series addresses those concerns: it takes a more gradual
> approach and uses explicit tzd state initialization, hence there are more
> insertions than in v3, and the net effect is -63 lines versus -139 lines
> in v3.
I'd like to test it. Which git repo / branch do you base this series of patches on?
[...]
> base-commit: 351f4911a477ae01239c42f771f621d85b06ea10
Can't find this hashref anywhere.
--
thanks
--peter;
W dniu 01.06.2020 o 12:02, Peter Kästle pisze:
> Hi,
>
> 28. Mai 2020 21:21, "Andrzej Pietrasiewicz" <[email protected]> schrieb:
>
> [...]
>
>> This v4 series addresses those concerns: it takes a more gradual
>> approach and uses explicit tzd state initialization, hence there are more
>> insertions than in v3, and the net effect is -63 lines versus -139 lines
>> in v3.
>
> I'd like to test it. Which git repo / branch do you base this series of patches on?
>
> [...]
>
>> base-commit: 351f4911a477ae01239c42f771f621d85b06ea10
>
> Can't find this hashref anywhere.
>
git://git.kernel.org/pub/scm/linux/kernel/git/thermal/linux.git, branch "testing".
base-commit: 351f4911a477ae01239c42f771f621d85b06ea10
Hi Guenter,
W dniu 29.05.2020 o 17:52, Guenter Roeck pisze:
> On Thu, May 28, 2020 at 09:20:46PM +0200, Andrzej Pietrasiewicz wrote:
>> Prepare for making the drivers not access tzd's private members.
>>
>> Signed-off-by: Andrzej Pietrasiewicz <[email protected]>
<snip>
>> +
> Nit: unnecessary empty line.
>
>> + return ret;
<snip>
>> + return thermal_zone_device_set_mode(tz, THERMAL_DEVICE_ENABLED);
>> +}
>> +EXPORT_SYMBOL(thermal_zone_device_enable);
>
> Other exports in thermal/ use EXPORT_SYMBOL_GPL.
Other than that does it look good to you?
I can send a v5 where the two above will be corrected, but did you have
a chance to review patches 7-11?
Andrzej
28. Mai 2020 21:21, "Andrzej Pietrasiewicz" <[email protected]> schrieb:
> Prepare for storing mode in struct thermal_zone_device.
>
> Signed-off-by: Andrzej Pietrasiewicz <[email protected]>
> ---
[...]
> drivers/platform/x86/acerhdf.c | 8 ++++--
Acked-by: Peter Kaestle <[email protected]>
28. Mai 2020 21:21, "Andrzej Pietrasiewicz" <[email protected]> schrieb:
> Prepare for eliminating get_mode().
>
> Signed-off-by: Andrzej Pietrasiewicz <[email protected]>
> ---
[...]
> drivers/platform/x86/acerhdf.c | 15 ++++++-------
Acked-by: Peter Kaestle <[email protected]>
28. Mai 2020 21:21, "Andrzej Pietrasiewicz" <[email protected]> schrieb:
> get_mode() is now redundant, as the state is stored in struct
> thermal_zone_device.
>
> Consequently the "mode" attribute in sysfs can always be visible, because
> it is always possible to get the mode from struct tzd.
>
> Signed-off-by: Andrzej Pietrasiewicz <[email protected]>
> ---
[...]
> drivers/platform/x86/acerhdf.c | 12 --------
Acked-by: Peter Kaestle <[email protected]>
28. Mai 2020 21:22, "Andrzej Pietrasiewicz" <[email protected]> schrieb:
> Use thermal_zone_device_{en|dis}able() and thermal_zone_device_is_enabled().
>
> Consequently, all set_mode() implementations in drivers:
>
> - can stop modifying tzd's "mode" member,
> - shall stop taking tzd's lock, as it is taken in the helpers
> - shall stop calling thermal_zone_device_update() as it is called in the
> helpers
> - can assume they are called when the mode truly changes, so checks to
> verify that can be dropped
>
> Not providing set_mode() by a driver no longer prevents the core from
> being able to set tzd's mode, so the relevant check in mode_store() is
> removed.
>
> Other comments:
>
> - acpi/thermal.c: tz->thermal_zone->mode will be updated only after we
> return from set_mode(), so use function parameter in thermal_set_mode()
> instead, no need to call acpi_thermal_check() in set_mode()
> - thermal/imx_thermal.c: regmap writes and mode assignment are done in
> thermal_zone_device_{en|dis}able() and set_mode() callback
> - thermal/intel/intel_quark_dts_thermal.c: soc_dts_{en|dis}able() are a
> part of set_mode() callback, so they don't need to modify tzd->mode, and
> don't need to fall back to the opposite mode if unsuccessful, as the return
> value will be propagated to thermal_zone_device_{en|dis}able() and
> ultimately tzd's member will not be changed in thermal_zone_device_set_mode().
> - thermal/of-thermal.c: no need to set zone->mode to DISABLED in
> of_parse_thermal_zones() as a tzd is kzalloc'ed so mode is DISABLED anyway
>
> Signed-off-by: Andrzej Pietrasiewicz <[email protected]>
> ---
[...]
> drivers/platform/x86/acerhdf.c | 17 +++++----
Acked-by: Peter Kaestle <[email protected]>
28. Mai 2020 21:22, "Andrzej Pietrasiewicz" <[email protected]> schrieb:
> Setting polling_delay is now done at thermal_core level (by not polling
> DISABLED devices), so no need to repeat this code.
>
> int340x: Checking for an impossible enum value is unnecessary.
> acpi/thermal: It only prints debug messages.
>
> Signed-off-by: Andrzej Pietrasiewicz <[email protected]>
> ---
[...]
> drivers/platform/x86/acerhdf.c | 3 --
Acked-by: Peter Kaestle <[email protected]>
28. Mai 2020 21:22, "Andrzej Pietrasiewicz" <[email protected]> schrieb:
> set_mode() is only called when tzd's mode is about to change. Actual
> setting is performed in thermal_core, in thermal_zone_device_set_mode().
> The meaning of set_mode() callback is actually to notify the driver about
> the mode being changed and giving the driver a chance to oppose such
> change.
>
> To better reflect the purpose of the method rename it to change_mode()
>
> Signed-off-by: Andrzej Pietrasiewicz <[email protected]>
> ---
> drivers/platform/x86/acerhdf.c | 6 +++---
Acked-by: Peter Kaestle <[email protected]>
On 6/1/20 4:16 AM, Andrzej Pietrasiewicz wrote:
> Hi Guenter,
>
> W dniu 29.05.2020 o 17:52, Guenter Roeck pisze:
>> On Thu, May 28, 2020 at 09:20:46PM +0200, Andrzej Pietrasiewicz wrote:
>>> Prepare for making the drivers not access tzd's private members.
>>>
>>> Signed-off-by: Andrzej Pietrasiewicz <[email protected]>
>
> <snip>
>
>>> +
>> Nit: unnecessary empty line.
>>
>>> + return ret;
>
> <snip>
>
>>> + return thermal_zone_device_set_mode(tz, THERMAL_DEVICE_ENABLED);
>>> +}
>>> +EXPORT_SYMBOL(thermal_zone_device_enable);
>>
>> Other exports in thermal/ use EXPORT_SYMBOL_GPL.
>
> Other than that does it look good to you?
Yes, it does.
> I can send a v5 where the two above will be corrected, but did you have
> a chance to review patches 7-11?
>
Not yet. I got distracted, sorry. Hopefully I'll get to it
today or tomorrow.
Guenter
On Thu, May 28, 2020 at 09:20:45PM +0200, Andrzej Pietrasiewicz wrote:
> get_mode() is now redundant, as the state is stored in struct
> thermal_zone_device.
>
> Consequently the "mode" attribute in sysfs can always be visible, because
> it is always possible to get the mode from struct tzd.
>
> Signed-off-by: Andrzej Pietrasiewicz <[email protected]>
Reviewed-by: Guenter Roeck <[email protected]>
> ---
> drivers/acpi/thermal.c | 9 ------
> .../ethernet/mellanox/mlxsw/core_thermal.c | 19 ------------
> drivers/platform/x86/acerhdf.c | 12 --------
> drivers/thermal/da9062-thermal.c | 8 -----
> drivers/thermal/imx_thermal.c | 9 ------
> .../intel/int340x_thermal/int3400_thermal.c | 9 ------
> .../thermal/intel/intel_quark_dts_thermal.c | 8 -----
> drivers/thermal/thermal_core.c | 7 +----
> drivers/thermal/thermal_of.c | 9 ------
> drivers/thermal/thermal_sysfs.c | 30 ++-----------------
> include/linux/thermal.h | 2 --
> 11 files changed, 3 insertions(+), 119 deletions(-)
>
> diff --git a/drivers/acpi/thermal.c b/drivers/acpi/thermal.c
> index 4ba273f49d87..592be97c4456 100644
> --- a/drivers/acpi/thermal.c
> +++ b/drivers/acpi/thermal.c
> @@ -525,14 +525,6 @@ static int thermal_get_temp(struct thermal_zone_device *thermal, int *temp)
> return 0;
> }
>
> -static int thermal_get_mode(struct thermal_zone_device *thermal,
> - enum thermal_device_mode *mode)
> -{
> - *mode = thermal->mode;
> -
> - return 0;
> -}
> -
> static int thermal_set_mode(struct thermal_zone_device *thermal,
> enum thermal_device_mode mode)
> {
> @@ -847,7 +839,6 @@ static struct thermal_zone_device_ops acpi_thermal_zone_ops = {
> .bind = acpi_thermal_bind_cooling_device,
> .unbind = acpi_thermal_unbind_cooling_device,
> .get_temp = thermal_get_temp,
> - .get_mode = thermal_get_mode,
> .set_mode = thermal_set_mode,
> .get_trip_type = thermal_get_trip_type,
> .get_trip_temp = thermal_get_trip_temp,
> diff --git a/drivers/net/ethernet/mellanox/mlxsw/core_thermal.c b/drivers/net/ethernet/mellanox/mlxsw/core_thermal.c
> index aa082e8a0b13..6e26678ac312 100644
> --- a/drivers/net/ethernet/mellanox/mlxsw/core_thermal.c
> +++ b/drivers/net/ethernet/mellanox/mlxsw/core_thermal.c
> @@ -275,14 +275,6 @@ static int mlxsw_thermal_unbind(struct thermal_zone_device *tzdev,
> return 0;
> }
>
> -static int mlxsw_thermal_get_mode(struct thermal_zone_device *tzdev,
> - enum thermal_device_mode *mode)
> -{
> - *mode = tzdev->mode;
> -
> - return 0;
> -}
> -
> static int mlxsw_thermal_set_mode(struct thermal_zone_device *tzdev,
> enum thermal_device_mode mode)
> {
> @@ -403,7 +395,6 @@ static int mlxsw_thermal_trend_get(struct thermal_zone_device *tzdev,
> static struct thermal_zone_device_ops mlxsw_thermal_ops = {
> .bind = mlxsw_thermal_bind,
> .unbind = mlxsw_thermal_unbind,
> - .get_mode = mlxsw_thermal_get_mode,
> .set_mode = mlxsw_thermal_set_mode,
> .get_temp = mlxsw_thermal_get_temp,
> .get_trip_type = mlxsw_thermal_get_trip_type,
> @@ -462,14 +453,6 @@ static int mlxsw_thermal_module_unbind(struct thermal_zone_device *tzdev,
> return err;
> }
>
> -static int mlxsw_thermal_module_mode_get(struct thermal_zone_device *tzdev,
> - enum thermal_device_mode *mode)
> -{
> - *mode = tzdev->mode;
> -
> - return 0;
> -}
> -
> static int mlxsw_thermal_module_mode_set(struct thermal_zone_device *tzdev,
> enum thermal_device_mode mode)
> {
> @@ -591,7 +574,6 @@ mlxsw_thermal_module_trip_hyst_set(struct thermal_zone_device *tzdev, int trip,
> static struct thermal_zone_device_ops mlxsw_thermal_module_ops = {
> .bind = mlxsw_thermal_module_bind,
> .unbind = mlxsw_thermal_module_unbind,
> - .get_mode = mlxsw_thermal_module_mode_get,
> .set_mode = mlxsw_thermal_module_mode_set,
> .get_temp = mlxsw_thermal_module_temp_get,
> .get_trip_type = mlxsw_thermal_module_trip_type_get,
> @@ -630,7 +612,6 @@ static int mlxsw_thermal_gearbox_temp_get(struct thermal_zone_device *tzdev,
> static struct thermal_zone_device_ops mlxsw_thermal_gearbox_ops = {
> .bind = mlxsw_thermal_module_bind,
> .unbind = mlxsw_thermal_module_unbind,
> - .get_mode = mlxsw_thermal_module_mode_get,
> .set_mode = mlxsw_thermal_module_mode_set,
> .get_temp = mlxsw_thermal_gearbox_temp_get,
> .get_trip_type = mlxsw_thermal_module_trip_type_get,
> diff --git a/drivers/platform/x86/acerhdf.c b/drivers/platform/x86/acerhdf.c
> index 97b288485837..32c5fe16b7f7 100644
> --- a/drivers/platform/x86/acerhdf.c
> +++ b/drivers/platform/x86/acerhdf.c
> @@ -413,17 +413,6 @@ static inline void acerhdf_enable_kernelmode(void)
> pr_notice("kernel mode fan control ON\n");
> }
>
> -static int acerhdf_get_mode(struct thermal_zone_device *thermal,
> - enum thermal_device_mode *mode)
> -{
> - if (verbose)
> - pr_notice("kernel mode fan control %d\n", kernelmode);
> -
> - *mode = thermal->mode;
> -
> - return 0;
> -}
> -
> /*
> * set operation mode;
> * enabled: the thermal layer of the kernel takes care about
> @@ -490,7 +479,6 @@ static struct thermal_zone_device_ops acerhdf_dev_ops = {
> .bind = acerhdf_bind,
> .unbind = acerhdf_unbind,
> .get_temp = acerhdf_get_ec_temp,
> - .get_mode = acerhdf_get_mode,
> .set_mode = acerhdf_set_mode,
> .get_trip_type = acerhdf_get_trip_type,
> .get_trip_hyst = acerhdf_get_trip_hyst,
> diff --git a/drivers/thermal/da9062-thermal.c b/drivers/thermal/da9062-thermal.c
> index a14c7981c7c7..a7ac8afb063e 100644
> --- a/drivers/thermal/da9062-thermal.c
> +++ b/drivers/thermal/da9062-thermal.c
> @@ -120,13 +120,6 @@ static irqreturn_t da9062_thermal_irq_handler(int irq, void *data)
> return IRQ_HANDLED;
> }
>
> -static int da9062_thermal_get_mode(struct thermal_zone_device *z,
> - enum thermal_device_mode *mode)
> -{
> - *mode = z->mode;
> - return 0;
> -}
> -
> static int da9062_thermal_get_trip_type(struct thermal_zone_device *z,
> int trip,
> enum thermal_trip_type *type)
> @@ -179,7 +172,6 @@ static int da9062_thermal_get_temp(struct thermal_zone_device *z,
>
> static struct thermal_zone_device_ops da9062_thermal_ops = {
> .get_temp = da9062_thermal_get_temp,
> - .get_mode = da9062_thermal_get_mode,
> .get_trip_type = da9062_thermal_get_trip_type,
> .get_trip_temp = da9062_thermal_get_trip_temp,
> };
> diff --git a/drivers/thermal/imx_thermal.c b/drivers/thermal/imx_thermal.c
> index 9a1114d721b6..2c7ee5da608a 100644
> --- a/drivers/thermal/imx_thermal.c
> +++ b/drivers/thermal/imx_thermal.c
> @@ -330,14 +330,6 @@ static int imx_get_temp(struct thermal_zone_device *tz, int *temp)
> return 0;
> }
>
> -static int imx_get_mode(struct thermal_zone_device *tz,
> - enum thermal_device_mode *mode)
> -{
> - *mode = tz->mode;
> -
> - return 0;
> -}
> -
> static int imx_set_mode(struct thermal_zone_device *tz,
> enum thermal_device_mode mode)
> {
> @@ -464,7 +456,6 @@ static struct thermal_zone_device_ops imx_tz_ops = {
> .bind = imx_bind,
> .unbind = imx_unbind,
> .get_temp = imx_get_temp,
> - .get_mode = imx_get_mode,
> .set_mode = imx_set_mode,
> .get_trip_type = imx_get_trip_type,
> .get_trip_temp = imx_get_trip_temp,
> diff --git a/drivers/thermal/intel/int340x_thermal/int3400_thermal.c b/drivers/thermal/intel/int340x_thermal/int3400_thermal.c
> index f65b2fc09198..9a622aaf29dd 100644
> --- a/drivers/thermal/intel/int340x_thermal/int3400_thermal.c
> +++ b/drivers/thermal/intel/int340x_thermal/int3400_thermal.c
> @@ -377,14 +377,6 @@ static int int3400_thermal_get_temp(struct thermal_zone_device *thermal,
> return 0;
> }
>
> -static int int3400_thermal_get_mode(struct thermal_zone_device *thermal,
> - enum thermal_device_mode *mode)
> -{
> - *mode = thermal->mode;
> -
> - return 0;
> -}
> -
> static int int3400_thermal_set_mode(struct thermal_zone_device *thermal,
> enum thermal_device_mode mode)
> {
> @@ -412,7 +404,6 @@ static int int3400_thermal_set_mode(struct thermal_zone_device *thermal,
>
> static struct thermal_zone_device_ops int3400_thermal_ops = {
> .get_temp = int3400_thermal_get_temp,
> - .get_mode = int3400_thermal_get_mode,
> .set_mode = int3400_thermal_set_mode,
> };
>
> diff --git a/drivers/thermal/intel/intel_quark_dts_thermal.c b/drivers/thermal/intel/intel_quark_dts_thermal.c
> index d77cb3df5ade..c4879b4bfbf1 100644
> --- a/drivers/thermal/intel/intel_quark_dts_thermal.c
> +++ b/drivers/thermal/intel/intel_quark_dts_thermal.c
> @@ -308,13 +308,6 @@ static int sys_get_curr_temp(struct thermal_zone_device *tzd,
> return 0;
> }
>
> -static int sys_get_mode(struct thermal_zone_device *tzd,
> - enum thermal_device_mode *mode)
> -{
> - *mode = tzd->mode;
> - return 0;
> -}
> -
> static int sys_set_mode(struct thermal_zone_device *tzd,
> enum thermal_device_mode mode)
> {
> @@ -336,7 +329,6 @@ static struct thermal_zone_device_ops tzone_ops = {
> .get_trip_type = sys_get_trip_type,
> .set_trip_temp = sys_set_trip_temp,
> .get_crit_temp = sys_get_crit_temp,
> - .get_mode = sys_get_mode,
> .set_mode = sys_set_mode,
> };
>
> diff --git a/drivers/thermal/thermal_core.c b/drivers/thermal/thermal_core.c
> index b71196eaf90e..14d3b1b94c4f 100644
> --- a/drivers/thermal/thermal_core.c
> +++ b/drivers/thermal/thermal_core.c
> @@ -1456,7 +1456,6 @@ static int thermal_pm_notify(struct notifier_block *nb,
> unsigned long mode, void *_unused)
> {
> struct thermal_zone_device *tz;
> - enum thermal_device_mode tz_mode;
>
> switch (mode) {
> case PM_HIBERNATION_PREPARE:
> @@ -1469,11 +1468,7 @@ static int thermal_pm_notify(struct notifier_block *nb,
> case PM_POST_SUSPEND:
> atomic_set(&in_suspend, 0);
> list_for_each_entry(tz, &thermal_tz_list, node) {
> - tz_mode = THERMAL_DEVICE_ENABLED;
> - if (tz->ops->get_mode)
> - tz->ops->get_mode(tz, &tz_mode);
> -
> - if (tz_mode == THERMAL_DEVICE_DISABLED)
> + if (tz->mode == THERMAL_DEVICE_DISABLED)
> continue;
>
> thermal_zone_device_init(tz);
> diff --git a/drivers/thermal/thermal_of.c b/drivers/thermal/thermal_of.c
> index c495b1e48ef2..ba65d48a48cb 100644
> --- a/drivers/thermal/thermal_of.c
> +++ b/drivers/thermal/thermal_of.c
> @@ -267,14 +267,6 @@ static int of_thermal_unbind(struct thermal_zone_device *thermal,
> return 0;
> }
>
> -static int of_thermal_get_mode(struct thermal_zone_device *tz,
> - enum thermal_device_mode *mode)
> -{
> - *mode = tz->mode;
> -
> - return 0;
> -}
> -
> static int of_thermal_set_mode(struct thermal_zone_device *tz,
> enum thermal_device_mode mode)
> {
> @@ -389,7 +381,6 @@ static int of_thermal_get_crit_temp(struct thermal_zone_device *tz,
> }
>
> static struct thermal_zone_device_ops of_thermal_ops = {
> - .get_mode = of_thermal_get_mode,
> .set_mode = of_thermal_set_mode,
>
> .get_trip_type = of_thermal_get_trip_type,
> diff --git a/drivers/thermal/thermal_sysfs.c b/drivers/thermal/thermal_sysfs.c
> index aa99edb4dff7..096370977068 100644
> --- a/drivers/thermal/thermal_sysfs.c
> +++ b/drivers/thermal/thermal_sysfs.c
> @@ -49,18 +49,9 @@ static ssize_t
> mode_show(struct device *dev, struct device_attribute *attr, char *buf)
> {
> struct thermal_zone_device *tz = to_thermal_zone(dev);
> - enum thermal_device_mode mode;
> - int result;
> -
> - if (!tz->ops->get_mode)
> - return -EPERM;
>
> - result = tz->ops->get_mode(tz, &mode);
> - if (result)
> - return result;
> -
> - return sprintf(buf, "%s\n", mode == THERMAL_DEVICE_ENABLED ? "enabled"
> - : "disabled");
> + return sprintf(buf, "%s\n", tz->mode == THERMAL_DEVICE_ENABLED ?
> + "enabled" : "disabled");
> }
>
> static ssize_t
> @@ -428,30 +419,13 @@ static struct attribute_group thermal_zone_attribute_group = {
> .attrs = thermal_zone_dev_attrs,
> };
>
> -/* We expose mode only if .get_mode is present */
> static struct attribute *thermal_zone_mode_attrs[] = {
> &dev_attr_mode.attr,
> NULL,
> };
>
> -static umode_t thermal_zone_mode_is_visible(struct kobject *kobj,
> - struct attribute *attr,
> - int attrno)
> -{
> - struct device *dev = container_of(kobj, struct device, kobj);
> - struct thermal_zone_device *tz;
> -
> - tz = container_of(dev, struct thermal_zone_device, device);
> -
> - if (tz->ops->get_mode)
> - return attr->mode;
> -
> - return 0;
> -}
> -
> static struct attribute_group thermal_zone_mode_attribute_group = {
> .attrs = thermal_zone_mode_attrs,
> - .is_visible = thermal_zone_mode_is_visible,
> };
>
> /* We expose passive only if passive trips are present */
> diff --git a/include/linux/thermal.h b/include/linux/thermal.h
> index 5f91d7f04512..a808f6fa2777 100644
> --- a/include/linux/thermal.h
> +++ b/include/linux/thermal.h
> @@ -76,8 +76,6 @@ struct thermal_zone_device_ops {
> struct thermal_cooling_device *);
> int (*get_temp) (struct thermal_zone_device *, int *);
> int (*set_trips) (struct thermal_zone_device *, int, int);
> - int (*get_mode) (struct thermal_zone_device *,
> - enum thermal_device_mode *);
> int (*set_mode) (struct thermal_zone_device *,
> enum thermal_device_mode);
> int (*get_trip_type) (struct thermal_zone_device *, int,
On Thu, May 28, 2020 at 09:20:44PM +0200, Andrzej Pietrasiewicz wrote:
> Prepare for eliminating get_mode().
>
> Signed-off-by: Andrzej Pietrasiewicz <[email protected]>
Reviewed-by: Guenter Roeck <[email protected]>
> ---
> drivers/acpi/thermal.c | 18 ++++++----------
> .../ethernet/mellanox/mlxsw/core_thermal.c | 21 +++++++------------
> drivers/platform/x86/acerhdf.c | 15 ++++++-------
> drivers/thermal/da9062-thermal.c | 6 ++----
> drivers/thermal/imx_thermal.c | 17 +++++++--------
> .../intel/int340x_thermal/int3400_thermal.c | 12 +++--------
> .../thermal/intel/intel_quark_dts_thermal.c | 16 +++++++-------
> drivers/thermal/thermal_of.c | 10 +++------
> 8 files changed, 44 insertions(+), 71 deletions(-)
>
> diff --git a/drivers/acpi/thermal.c b/drivers/acpi/thermal.c
> index fb46070c66d8..4ba273f49d87 100644
> --- a/drivers/acpi/thermal.c
> +++ b/drivers/acpi/thermal.c
> @@ -172,7 +172,6 @@ struct acpi_thermal {
> struct acpi_thermal_trips trips;
> struct acpi_handle_list devices;
> struct thermal_zone_device *thermal_zone;
> - enum thermal_device_mode mode;
> int kelvin_offset; /* in millidegrees */
> struct work_struct thermal_check_work;
> };
> @@ -500,7 +499,7 @@ static void acpi_thermal_check(void *data)
> {
> struct acpi_thermal *tz = data;
>
> - if (tz->mode != THERMAL_DEVICE_ENABLED)
> + if (tz->thermal_zone->mode != THERMAL_DEVICE_ENABLED)
> return;
>
> thermal_zone_device_update(tz->thermal_zone,
> @@ -529,12 +528,7 @@ static int thermal_get_temp(struct thermal_zone_device *thermal, int *temp)
> static int thermal_get_mode(struct thermal_zone_device *thermal,
> enum thermal_device_mode *mode)
> {
> - struct acpi_thermal *tz = thermal->devdata;
> -
> - if (!tz)
> - return -EINVAL;
> -
> - *mode = tz->mode;
> + *mode = thermal->mode;
>
> return 0;
> }
> @@ -556,11 +550,11 @@ static int thermal_set_mode(struct thermal_zone_device *thermal,
> if (mode == THERMAL_DEVICE_DISABLED)
> pr_warn("thermal zone will be disabled\n");
>
> - if (mode != tz->mode) {
> - tz->mode = mode;
> + if (mode != tz->thermal_zone->mode) {
> + tz->thermal_zone->mode = mode;
> ACPI_DEBUG_PRINT((ACPI_DB_INFO,
> "%s kernel ACPI thermal control\n",
> - tz->mode == THERMAL_DEVICE_ENABLED ?
> + tz->thermal_zone->mode == THERMAL_DEVICE_ENABLED ?
> "Enable" : "Disable"));
> acpi_thermal_check(tz);
> }
> @@ -912,7 +906,7 @@ static int acpi_thermal_register_thermal_zone(struct acpi_thermal *tz)
> goto remove_dev_link;
> }
>
> - tz->mode = THERMAL_DEVICE_ENABLED;
> + tz->thermal_zone->mode = THERMAL_DEVICE_ENABLED;
>
> dev_info(&tz->device->dev, "registered as thermal_zone%d\n",
> tz->thermal_zone->id);
> diff --git a/drivers/net/ethernet/mellanox/mlxsw/core_thermal.c b/drivers/net/ethernet/mellanox/mlxsw/core_thermal.c
> index ce0a6837daa3..aa082e8a0b13 100644
> --- a/drivers/net/ethernet/mellanox/mlxsw/core_thermal.c
> +++ b/drivers/net/ethernet/mellanox/mlxsw/core_thermal.c
> @@ -98,7 +98,6 @@ struct mlxsw_thermal_module {
> struct mlxsw_thermal *parent;
> struct thermal_zone_device *tzdev;
> struct mlxsw_thermal_trip trips[MLXSW_THERMAL_NUM_TRIPS];
> - enum thermal_device_mode mode;
> int module; /* Module or gearbox number */
> };
>
> @@ -110,7 +109,6 @@ struct mlxsw_thermal {
> struct thermal_cooling_device *cdevs[MLXSW_MFCR_PWMS_MAX];
> u8 cooling_levels[MLXSW_THERMAL_MAX_STATE + 1];
> struct mlxsw_thermal_trip trips[MLXSW_THERMAL_NUM_TRIPS];
> - enum thermal_device_mode mode;
> struct mlxsw_thermal_module *tz_module_arr;
> u8 tz_module_num;
> struct mlxsw_thermal_module *tz_gearbox_arr;
> @@ -280,9 +278,7 @@ static int mlxsw_thermal_unbind(struct thermal_zone_device *tzdev,
> static int mlxsw_thermal_get_mode(struct thermal_zone_device *tzdev,
> enum thermal_device_mode *mode)
> {
> - struct mlxsw_thermal *thermal = tzdev->devdata;
> -
> - *mode = thermal->mode;
> + *mode = tzdev->mode;
>
> return 0;
> }
> @@ -299,9 +295,9 @@ static int mlxsw_thermal_set_mode(struct thermal_zone_device *tzdev,
> else
> tzdev->polling_delay = 0;
>
> + tzdev->mode = mode;
> mutex_unlock(&tzdev->lock);
>
> - thermal->mode = mode;
> thermal_zone_device_update(tzdev, THERMAL_EVENT_UNSPECIFIED);
>
> return 0;
> @@ -469,9 +465,7 @@ static int mlxsw_thermal_module_unbind(struct thermal_zone_device *tzdev,
> static int mlxsw_thermal_module_mode_get(struct thermal_zone_device *tzdev,
> enum thermal_device_mode *mode)
> {
> - struct mlxsw_thermal_module *tz = tzdev->devdata;
> -
> - *mode = tz->mode;
> + *mode = tzdev->mode;
>
> return 0;
> }
> @@ -489,9 +483,10 @@ static int mlxsw_thermal_module_mode_set(struct thermal_zone_device *tzdev,
> else
> tzdev->polling_delay = 0;
>
> + tzdev->mode = mode;
> +
> mutex_unlock(&tzdev->lock);
>
> - tz->mode = mode;
> thermal_zone_device_update(tzdev, THERMAL_EVENT_UNSPECIFIED);
>
> return 0;
> @@ -765,7 +760,7 @@ mlxsw_thermal_module_tz_init(struct mlxsw_thermal_module *module_tz)
> return err;
> }
>
> - module_tz->mode = THERMAL_DEVICE_ENABLED;
> + module_tz->tzdev->mode = THERMAL_DEVICE_ENABLED;
> return 0;
> }
>
> @@ -881,7 +876,7 @@ mlxsw_thermal_gearbox_tz_init(struct mlxsw_thermal_module *gearbox_tz)
> if (IS_ERR(gearbox_tz->tzdev))
> return PTR_ERR(gearbox_tz->tzdev);
>
> - gearbox_tz->mode = THERMAL_DEVICE_ENABLED;
> + gearbox_tz->tzdev->mode = THERMAL_DEVICE_ENABLED;
> return 0;
> }
>
> @@ -1050,7 +1045,7 @@ int mlxsw_thermal_init(struct mlxsw_core *core,
> if (err)
> goto err_unreg_modules_tzdev;
>
> - thermal->mode = THERMAL_DEVICE_ENABLED;
> + thermal->tzdev->mode = THERMAL_DEVICE_ENABLED;
> *p_thermal = thermal;
> return 0;
>
> diff --git a/drivers/platform/x86/acerhdf.c b/drivers/platform/x86/acerhdf.c
> index 830a8b060e74..97b288485837 100644
> --- a/drivers/platform/x86/acerhdf.c
> +++ b/drivers/platform/x86/acerhdf.c
> @@ -68,7 +68,6 @@ static int kernelmode = 1;
> #else
> static int kernelmode;
> #endif
> -static enum thermal_device_mode thermal_mode;
>
> static unsigned int interval = 10;
> static unsigned int fanon = 60000;
> @@ -398,15 +397,16 @@ static inline void acerhdf_revert_to_bios_mode(void)
> {
> acerhdf_change_fanstate(ACERHDF_FAN_AUTO);
> kernelmode = 0;
> - thermal_mode = THERMAL_DEVICE_DISABLED;
> - if (thz_dev)
> + if (thz_dev) {
> + thz_dev->mode = THERMAL_DEVICE_DISABLED;
> thz_dev->polling_delay = 0;
> + }
> pr_notice("kernel mode fan control OFF\n");
> }
> static inline void acerhdf_enable_kernelmode(void)
> {
> kernelmode = 1;
> - thermal_mode = THERMAL_DEVICE_ENABLED;
> + thz_dev->mode = THERMAL_DEVICE_ENABLED;
>
> thz_dev->polling_delay = interval*1000;
> thermal_zone_device_update(thz_dev, THERMAL_EVENT_UNSPECIFIED);
> @@ -419,7 +419,7 @@ static int acerhdf_get_mode(struct thermal_zone_device *thermal,
> if (verbose)
> pr_notice("kernel mode fan control %d\n", kernelmode);
>
> - *mode = thermal_mode;
> + *mode = thermal->mode;
>
> return 0;
> }
> @@ -741,8 +741,6 @@ static int __init acerhdf_register_thermal(void)
> if (IS_ERR(cl_dev))
> return -EINVAL;
>
> - thermal_mode = kernelmode ?
> - THERMAL_DEVICE_ENABLED : THERMAL_DEVICE_DISABLED;
> thz_dev = thermal_zone_device_register("acerhdf", 2, 0, NULL,
> &acerhdf_dev_ops,
> &acerhdf_zone_params, 0,
> @@ -750,6 +748,9 @@ static int __init acerhdf_register_thermal(void)
> if (IS_ERR(thz_dev))
> return -EINVAL;
>
> + thz_dev->mode = kernelmode ?
> + THERMAL_DEVICE_ENABLED : THERMAL_DEVICE_DISABLED;
> +
> if (strcmp(thz_dev->governor->name,
> acerhdf_zone_params.governor_name)) {
> pr_err("Didn't get thermal governor %s, perhaps not compiled into thermal subsystem.\n",
> diff --git a/drivers/thermal/da9062-thermal.c b/drivers/thermal/da9062-thermal.c
> index c32709badeda..a14c7981c7c7 100644
> --- a/drivers/thermal/da9062-thermal.c
> +++ b/drivers/thermal/da9062-thermal.c
> @@ -49,7 +49,6 @@ struct da9062_thermal {
> struct da9062 *hw;
> struct delayed_work work;
> struct thermal_zone_device *zone;
> - enum thermal_device_mode mode;
> struct mutex lock; /* protection for da9062_thermal temperature */
> int temperature;
> int irq;
> @@ -124,8 +123,7 @@ static irqreturn_t da9062_thermal_irq_handler(int irq, void *data)
> static int da9062_thermal_get_mode(struct thermal_zone_device *z,
> enum thermal_device_mode *mode)
> {
> - struct da9062_thermal *thermal = z->devdata;
> - *mode = thermal->mode;
> + *mode = z->mode;
> return 0;
> }
>
> @@ -233,7 +231,6 @@ static int da9062_thermal_probe(struct platform_device *pdev)
>
> thermal->config = match->data;
> thermal->hw = chip;
> - thermal->mode = THERMAL_DEVICE_ENABLED;
> thermal->dev = &pdev->dev;
>
> INIT_DELAYED_WORK(&thermal->work, da9062_thermal_poll_on);
> @@ -248,6 +245,7 @@ static int da9062_thermal_probe(struct platform_device *pdev)
> ret = PTR_ERR(thermal->zone);
> goto err;
> }
> + thermal->zone->mode = THERMAL_DEVICE_ENABLED;
>
> dev_dbg(&pdev->dev,
> "TJUNC temperature polling period set at %d ms\n",
> diff --git a/drivers/thermal/imx_thermal.c b/drivers/thermal/imx_thermal.c
> index e761c9b42217..9a1114d721b6 100644
> --- a/drivers/thermal/imx_thermal.c
> +++ b/drivers/thermal/imx_thermal.c
> @@ -197,7 +197,6 @@ struct imx_thermal_data {
> struct cpufreq_policy *policy;
> struct thermal_zone_device *tz;
> struct thermal_cooling_device *cdev;
> - enum thermal_device_mode mode;
> struct regmap *tempmon;
> u32 c1, c2; /* See formula in imx_init_calib() */
> int temp_passive;
> @@ -256,7 +255,7 @@ static int imx_get_temp(struct thermal_zone_device *tz, int *temp)
> bool wait;
> u32 val;
>
> - if (data->mode == THERMAL_DEVICE_ENABLED) {
> + if (tz->mode == THERMAL_DEVICE_ENABLED) {
> /* Check if a measurement is currently in progress */
> regmap_read(map, soc_data->temp_data, &val);
> wait = !(val & soc_data->temp_valid_mask);
> @@ -283,7 +282,7 @@ static int imx_get_temp(struct thermal_zone_device *tz, int *temp)
>
> regmap_read(map, soc_data->temp_data, &val);
>
> - if (data->mode != THERMAL_DEVICE_ENABLED) {
> + if (tz->mode != THERMAL_DEVICE_ENABLED) {
> regmap_write(map, soc_data->sensor_ctrl + REG_CLR,
> soc_data->measure_temp_mask);
> regmap_write(map, soc_data->sensor_ctrl + REG_SET,
> @@ -334,9 +333,7 @@ static int imx_get_temp(struct thermal_zone_device *tz, int *temp)
> static int imx_get_mode(struct thermal_zone_device *tz,
> enum thermal_device_mode *mode)
> {
> - struct imx_thermal_data *data = tz->devdata;
> -
> - *mode = data->mode;
> + *mode = tz->mode;
>
> return 0;
> }
> @@ -376,7 +373,7 @@ static int imx_set_mode(struct thermal_zone_device *tz,
> }
> }
>
> - data->mode = mode;
> + tz->mode = mode;
> thermal_zone_device_update(tz, THERMAL_EVENT_UNSPECIFIED);
>
> return 0;
> @@ -831,7 +828,7 @@ static int imx_thermal_probe(struct platform_device *pdev)
> data->socdata->measure_temp_mask);
>
> data->irq_enabled = true;
> - data->mode = THERMAL_DEVICE_ENABLED;
> + data->tz->mode = THERMAL_DEVICE_ENABLED;
>
> ret = devm_request_threaded_irq(&pdev->dev, data->irq,
> imx_thermal_alarm_irq, imx_thermal_alarm_irq_thread,
> @@ -885,7 +882,7 @@ static int __maybe_unused imx_thermal_suspend(struct device *dev)
> data->socdata->measure_temp_mask);
> regmap_write(map, data->socdata->sensor_ctrl + REG_SET,
> data->socdata->power_down_mask);
> - data->mode = THERMAL_DEVICE_DISABLED;
> + data->tz->mode = THERMAL_DEVICE_DISABLED;
> clk_disable_unprepare(data->thermal_clk);
>
> return 0;
> @@ -905,7 +902,7 @@ static int __maybe_unused imx_thermal_resume(struct device *dev)
> data->socdata->power_down_mask);
> regmap_write(map, data->socdata->sensor_ctrl + REG_SET,
> data->socdata->measure_temp_mask);
> - data->mode = THERMAL_DEVICE_ENABLED;
> + data->tz->mode = THERMAL_DEVICE_ENABLED;
>
> return 0;
> }
> diff --git a/drivers/thermal/intel/int340x_thermal/int3400_thermal.c b/drivers/thermal/intel/int340x_thermal/int3400_thermal.c
> index e84faaadff87..f65b2fc09198 100644
> --- a/drivers/thermal/intel/int340x_thermal/int3400_thermal.c
> +++ b/drivers/thermal/intel/int340x_thermal/int3400_thermal.c
> @@ -48,7 +48,6 @@ struct int3400_thermal_priv {
> struct acpi_device *adev;
> struct platform_device *pdev;
> struct thermal_zone_device *thermal;
> - enum thermal_device_mode mode;
> int art_count;
> struct art *arts;
> int trt_count;
> @@ -381,12 +380,7 @@ static int int3400_thermal_get_temp(struct thermal_zone_device *thermal,
> static int int3400_thermal_get_mode(struct thermal_zone_device *thermal,
> enum thermal_device_mode *mode)
> {
> - struct int3400_thermal_priv *priv = thermal->devdata;
> -
> - if (!priv)
> - return -EINVAL;
> -
> - *mode = priv->mode;
> + *mode = thermal->mode;
>
> return 0;
> }
> @@ -404,8 +398,8 @@ static int int3400_thermal_set_mode(struct thermal_zone_device *thermal,
> mode != THERMAL_DEVICE_DISABLED)
> return -EINVAL;
>
> - if (mode != priv->mode) {
> - priv->mode = mode;
> + if (mode != thermal->mode) {
> + thermal->mode = mode;
> result = int3400_thermal_run_osc(priv->adev->handle,
> priv->current_uuid_index,
> mode == THERMAL_DEVICE_ENABLED);
> diff --git a/drivers/thermal/intel/intel_quark_dts_thermal.c b/drivers/thermal/intel/intel_quark_dts_thermal.c
> index d704fc104cfd..d77cb3df5ade 100644
> --- a/drivers/thermal/intel/intel_quark_dts_thermal.c
> +++ b/drivers/thermal/intel/intel_quark_dts_thermal.c
> @@ -103,7 +103,6 @@ struct soc_sensor_entry {
> bool locked;
> u32 store_ptps;
> u32 store_dts_enable;
> - enum thermal_device_mode mode;
> struct thermal_zone_device *tzone;
> };
>
> @@ -128,7 +127,7 @@ static int soc_dts_enable(struct thermal_zone_device *tzd)
> return ret;
>
> if (out & QRK_DTS_ENABLE_BIT) {
> - aux_entry->mode = THERMAL_DEVICE_ENABLED;
> + tzd->mode = THERMAL_DEVICE_ENABLED;
> return 0;
> }
>
> @@ -139,9 +138,9 @@ static int soc_dts_enable(struct thermal_zone_device *tzd)
> if (ret)
> return ret;
>
> - aux_entry->mode = THERMAL_DEVICE_ENABLED;
> + tzd->mode = THERMAL_DEVICE_ENABLED;
> } else {
> - aux_entry->mode = THERMAL_DEVICE_DISABLED;
> + tzd->mode = THERMAL_DEVICE_DISABLED;
> pr_info("DTS is locked. Cannot enable DTS\n");
> ret = -EPERM;
> }
> @@ -161,7 +160,7 @@ static int soc_dts_disable(struct thermal_zone_device *tzd)
> return ret;
>
> if (!(out & QRK_DTS_ENABLE_BIT)) {
> - aux_entry->mode = THERMAL_DEVICE_DISABLED;
> + tzd->mode = THERMAL_DEVICE_DISABLED;
> return 0;
> }
>
> @@ -173,9 +172,9 @@ static int soc_dts_disable(struct thermal_zone_device *tzd)
> if (ret)
> return ret;
>
> - aux_entry->mode = THERMAL_DEVICE_DISABLED;
> + tzd->mode = THERMAL_DEVICE_DISABLED;
> } else {
> - aux_entry->mode = THERMAL_DEVICE_ENABLED;
> + tzd->mode = THERMAL_DEVICE_ENABLED;
> pr_info("DTS is locked. Cannot disable DTS\n");
> ret = -EPERM;
> }
> @@ -312,8 +311,7 @@ static int sys_get_curr_temp(struct thermal_zone_device *tzd,
> static int sys_get_mode(struct thermal_zone_device *tzd,
> enum thermal_device_mode *mode)
> {
> - struct soc_sensor_entry *aux_entry = tzd->devdata;
> - *mode = aux_entry->mode;
> + *mode = tzd->mode;
> return 0;
> }
>
> diff --git a/drivers/thermal/thermal_of.c b/drivers/thermal/thermal_of.c
> index ddf88dbe7ba2..c495b1e48ef2 100644
> --- a/drivers/thermal/thermal_of.c
> +++ b/drivers/thermal/thermal_of.c
> @@ -51,7 +51,6 @@ struct __thermal_bind_params {
>
> /**
> * struct __thermal_zone - internal representation of a thermal zone
> - * @mode: current thermal zone device mode (enabled/disabled)
> * @passive_delay: polling interval while passive cooling is activated
> * @polling_delay: zone polling interval
> * @slope: slope of the temperature adjustment curve
> @@ -65,7 +64,6 @@ struct __thermal_bind_params {
> */
>
> struct __thermal_zone {
> - enum thermal_device_mode mode;
> int passive_delay;
> int polling_delay;
> int slope;
> @@ -272,9 +270,7 @@ static int of_thermal_unbind(struct thermal_zone_device *thermal,
> static int of_thermal_get_mode(struct thermal_zone_device *tz,
> enum thermal_device_mode *mode)
> {
> - struct __thermal_zone *data = tz->devdata;
> -
> - *mode = data->mode;
> + *mode = tz->mode;
>
> return 0;
> }
> @@ -296,7 +292,7 @@ static int of_thermal_set_mode(struct thermal_zone_device *tz,
>
> mutex_unlock(&tz->lock);
>
> - data->mode = mode;
> + tz->mode = mode;
> thermal_zone_device_update(tz, THERMAL_EVENT_UNSPECIFIED);
>
> return 0;
> @@ -979,7 +975,6 @@ __init *thermal_of_build_thermal_zone(struct device_node *np)
>
> finish:
> of_node_put(child);
> - tz->mode = THERMAL_DEVICE_DISABLED;
>
> return tz;
>
> @@ -1134,6 +1129,7 @@ int __init of_parse_thermal_zones(void)
> of_thermal_free_zone(tz);
> /* attempting to build remaining zones still */
> }
> + zone->mode = THERMAL_DEVICE_DISABLED;
> }
> of_node_put(np);
>
Hi Andrzej,
On 28/05/2020 21:20, Andrzej Pietrasiewicz wrote:
> There is already a reviewed v3 (not to be confused with RFC v3), which can
> be considered for merging:
>
> https://lore.kernel.org/linux-pm/[email protected]/
>
> Let me cite Bartlomiej Zolnierkiewicz:
>
> "I couldn't find the problems with the patch itself (no new issues
> being introduced, all changes seem to be improvements over the current
> situation).
>
> Also the patch is not small but it also not that big and it mostly
> removes the code:
>
> 17 files changed, 105 insertions(+), 244 deletions(-)"
Thanks for this nice cleanup. Given the series was tested, reviewed and
acked, I would like to merge it as soon as possible.
Can you send the V5 with the EXPORT_SYMBOL_GPL fixed ? So the series can
enter the integration loop.
Thanks
-- Daniel
--
<http://www.linaro.org/> Linaro.org │ Open source software for ARM SoCs
Follow Linaro: <http://www.facebook.com/pages/Linaro> Facebook |
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<http://www.linaro.org/linaro-blog/> Blog
On 5/28/20 9:20 PM, Andrzej Pietrasiewicz wrote:
> The acpi_thermal_register_thermal_zone() is missing any error handling.
> This needs to be fixed.
>
> Signed-off-by: Andrzej Pietrasiewicz <[email protected]>
Reviewed-by: Bartlomiej Zolnierkiewicz <[email protected]>
Best regards,
--
Bartlomiej Zolnierkiewicz
Samsung R&D Institute Poland
Samsung Electronics
> ---
> drivers/acpi/thermal.c | 20 ++++++++++++++++----
> 1 file changed, 16 insertions(+), 4 deletions(-)
>
> diff --git a/drivers/acpi/thermal.c b/drivers/acpi/thermal.c
> index 19067a5e5293..6de8066ca1e7 100644
> --- a/drivers/acpi/thermal.c
> +++ b/drivers/acpi/thermal.c
> @@ -901,23 +901,35 @@ static int acpi_thermal_register_thermal_zone(struct acpi_thermal *tz)
> result = sysfs_create_link(&tz->device->dev.kobj,
> &tz->thermal_zone->device.kobj, "thermal_zone");
> if (result)
> - return result;
> + goto unregister_tzd;
>
> result = sysfs_create_link(&tz->thermal_zone->device.kobj,
> &tz->device->dev.kobj, "device");
> if (result)
> - return result;
> + goto remove_tz_link;
>
> status = acpi_bus_attach_private_data(tz->device->handle,
> tz->thermal_zone);
> - if (ACPI_FAILURE(status))
> - return -ENODEV;
> + if (ACPI_FAILURE(status)) {
> + result = -ENODEV;
> + goto remove_dev_link;
> + }
>
> tz->tz_enabled = 1;
>
> dev_info(&tz->device->dev, "registered as thermal_zone%d\n",
> tz->thermal_zone->id);
> +
> return 0;
> +
> +remove_dev_link:
> + sysfs_remove_link(&tz->thermal_zone->device.kobj, "device");
> +remove_tz_link:
> + sysfs_remove_link(&tz->device->dev.kobj, "thermal_zone");
> +unregister_tzd:
> + thermal_zone_device_unregister(tz->thermal_zone);
> +
> + return result;
> }
>
> static void acpi_thermal_unregister_thermal_zone(struct acpi_thermal *tz)
>
On 5/28/20 9:20 PM, Andrzej Pietrasiewicz wrote:
> Prepare for storing mode in struct thermal_zone_device.
>
> Signed-off-by: Andrzej Pietrasiewicz <[email protected]>
Reviewed-by: Bartlomiej Zolnierkiewicz <[email protected]>
Best regards,
--
Bartlomiej Zolnierkiewicz
Samsung R&D Institute Poland
Samsung Electronics
> ---
> drivers/acpi/thermal.c | 27 +++++++++----------
> drivers/platform/x86/acerhdf.c | 8 ++++--
> .../intel/int340x_thermal/int3400_thermal.c | 18 +++++--------
> 3 files changed, 25 insertions(+), 28 deletions(-)
>
> diff --git a/drivers/acpi/thermal.c b/drivers/acpi/thermal.c
> index 6de8066ca1e7..fb46070c66d8 100644
> --- a/drivers/acpi/thermal.c
> +++ b/drivers/acpi/thermal.c
> @@ -172,7 +172,7 @@ struct acpi_thermal {
> struct acpi_thermal_trips trips;
> struct acpi_handle_list devices;
> struct thermal_zone_device *thermal_zone;
> - int tz_enabled;
> + enum thermal_device_mode mode;
> int kelvin_offset; /* in millidegrees */
> struct work_struct thermal_check_work;
> };
> @@ -500,7 +500,7 @@ static void acpi_thermal_check(void *data)
> {
> struct acpi_thermal *tz = data;
>
> - if (!tz->tz_enabled)
> + if (tz->mode != THERMAL_DEVICE_ENABLED)
> return;
>
> thermal_zone_device_update(tz->thermal_zone,
> @@ -534,8 +534,7 @@ static int thermal_get_mode(struct thermal_zone_device *thermal,
> if (!tz)
> return -EINVAL;
>
> - *mode = tz->tz_enabled ? THERMAL_DEVICE_ENABLED :
> - THERMAL_DEVICE_DISABLED;
> + *mode = tz->mode;
>
> return 0;
> }
> @@ -544,27 +543,25 @@ static int thermal_set_mode(struct thermal_zone_device *thermal,
> enum thermal_device_mode mode)
> {
> struct acpi_thermal *tz = thermal->devdata;
> - int enable;
>
> if (!tz)
> return -EINVAL;
>
> + if (mode != THERMAL_DEVICE_DISABLED &&
> + mode != THERMAL_DEVICE_ENABLED)
> + return -EINVAL;
> /*
> * enable/disable thermal management from ACPI thermal driver
> */
> - if (mode == THERMAL_DEVICE_ENABLED)
> - enable = 1;
> - else if (mode == THERMAL_DEVICE_DISABLED) {
> - enable = 0;
> + if (mode == THERMAL_DEVICE_DISABLED)
> pr_warn("thermal zone will be disabled\n");
> - } else
> - return -EINVAL;
>
> - if (enable != tz->tz_enabled) {
> - tz->tz_enabled = enable;
> + if (mode != tz->mode) {
> + tz->mode = mode;
> ACPI_DEBUG_PRINT((ACPI_DB_INFO,
> "%s kernel ACPI thermal control\n",
> - tz->tz_enabled ? "Enable" : "Disable"));
> + tz->mode == THERMAL_DEVICE_ENABLED ?
> + "Enable" : "Disable"));
> acpi_thermal_check(tz);
> }
> return 0;
> @@ -915,7 +912,7 @@ static int acpi_thermal_register_thermal_zone(struct acpi_thermal *tz)
> goto remove_dev_link;
> }
>
> - tz->tz_enabled = 1;
> + tz->mode = THERMAL_DEVICE_ENABLED;
>
> dev_info(&tz->device->dev, "registered as thermal_zone%d\n",
> tz->thermal_zone->id);
> diff --git a/drivers/platform/x86/acerhdf.c b/drivers/platform/x86/acerhdf.c
> index 8cc86f4e3ac1..830a8b060e74 100644
> --- a/drivers/platform/x86/acerhdf.c
> +++ b/drivers/platform/x86/acerhdf.c
> @@ -68,6 +68,7 @@ static int kernelmode = 1;
> #else
> static int kernelmode;
> #endif
> +static enum thermal_device_mode thermal_mode;
>
> static unsigned int interval = 10;
> static unsigned int fanon = 60000;
> @@ -397,6 +398,7 @@ static inline void acerhdf_revert_to_bios_mode(void)
> {
> acerhdf_change_fanstate(ACERHDF_FAN_AUTO);
> kernelmode = 0;
> + thermal_mode = THERMAL_DEVICE_DISABLED;
> if (thz_dev)
> thz_dev->polling_delay = 0;
> pr_notice("kernel mode fan control OFF\n");
> @@ -404,6 +406,7 @@ static inline void acerhdf_revert_to_bios_mode(void)
> static inline void acerhdf_enable_kernelmode(void)
> {
> kernelmode = 1;
> + thermal_mode = THERMAL_DEVICE_ENABLED;
>
> thz_dev->polling_delay = interval*1000;
> thermal_zone_device_update(thz_dev, THERMAL_EVENT_UNSPECIFIED);
> @@ -416,8 +419,7 @@ static int acerhdf_get_mode(struct thermal_zone_device *thermal,
> if (verbose)
> pr_notice("kernel mode fan control %d\n", kernelmode);
>
> - *mode = (kernelmode) ? THERMAL_DEVICE_ENABLED
> - : THERMAL_DEVICE_DISABLED;
> + *mode = thermal_mode;
>
> return 0;
> }
> @@ -739,6 +741,8 @@ static int __init acerhdf_register_thermal(void)
> if (IS_ERR(cl_dev))
> return -EINVAL;
>
> + thermal_mode = kernelmode ?
> + THERMAL_DEVICE_ENABLED : THERMAL_DEVICE_DISABLED;
> thz_dev = thermal_zone_device_register("acerhdf", 2, 0, NULL,
> &acerhdf_dev_ops,
> &acerhdf_zone_params, 0,
> diff --git a/drivers/thermal/intel/int340x_thermal/int3400_thermal.c b/drivers/thermal/intel/int340x_thermal/int3400_thermal.c
> index 0b3a62655843..e84faaadff87 100644
> --- a/drivers/thermal/intel/int340x_thermal/int3400_thermal.c
> +++ b/drivers/thermal/intel/int340x_thermal/int3400_thermal.c
> @@ -48,7 +48,7 @@ struct int3400_thermal_priv {
> struct acpi_device *adev;
> struct platform_device *pdev;
> struct thermal_zone_device *thermal;
> - int mode;
> + enum thermal_device_mode mode;
> int art_count;
> struct art *arts;
> int trt_count;
> @@ -395,24 +395,20 @@ static int int3400_thermal_set_mode(struct thermal_zone_device *thermal,
> enum thermal_device_mode mode)
> {
> struct int3400_thermal_priv *priv = thermal->devdata;
> - bool enable;
> int result = 0;
>
> if (!priv)
> return -EINVAL;
>
> - if (mode == THERMAL_DEVICE_ENABLED)
> - enable = true;
> - else if (mode == THERMAL_DEVICE_DISABLED)
> - enable = false;
> - else
> + if (mode != THERMAL_DEVICE_ENABLED &&
> + mode != THERMAL_DEVICE_DISABLED)
> return -EINVAL;
>
> - if (enable != priv->mode) {
> - priv->mode = enable;
> + if (mode != priv->mode) {
> + priv->mode = mode;
> result = int3400_thermal_run_osc(priv->adev->handle,
> - priv->current_uuid_index,
> - enable);
> + priv->current_uuid_index,
> + mode == THERMAL_DEVICE_ENABLED);
> }
>
> evaluate_odvp(priv);
>
On 5/28/20 9:20 PM, Andrzej Pietrasiewicz wrote:
> Prepare for changing the place where the mode is stored: now it is in
> drivers, which might or might not implement get_mode()/set_mode() methods.
> A lot of cleanup can be done thanks to storing it in struct tzd. The
> get_mode() methods will become redundant.
>
> Signed-off-by: Andrzej Pietrasiewicz <[email protected]>
Reviewed-by: Bartlomiej Zolnierkiewicz <[email protected]>
Best regards,
--
Bartlomiej Zolnierkiewicz
Samsung R&D Institute Poland
Samsung Electronics
> ---
> include/linux/thermal.h | 2 ++
> 1 file changed, 2 insertions(+)
>
> diff --git a/include/linux/thermal.h b/include/linux/thermal.h
> index 216185bb3014..5f91d7f04512 100644
> --- a/include/linux/thermal.h
> +++ b/include/linux/thermal.h
> @@ -128,6 +128,7 @@ struct thermal_cooling_device {
> * @trip_temp_attrs: attributes for trip points for sysfs: trip temperature
> * @trip_type_attrs: attributes for trip points for sysfs: trip type
> * @trip_hyst_attrs: attributes for trip points for sysfs: trip hysteresis
> + * @mode: current mode of this thermal zone
> * @devdata: private pointer for device private data
> * @trips: number of trip points the thermal zone supports
> * @trips_disabled; bitmap for disabled trips
> @@ -170,6 +171,7 @@ struct thermal_zone_device {
> struct thermal_attr *trip_temp_attrs;
> struct thermal_attr *trip_type_attrs;
> struct thermal_attr *trip_hyst_attrs;
> + enum thermal_device_mode mode;
> void *devdata;
> int trips;
> unsigned long trips_disabled; /* bitmap for disabled trips */
>
On 5/28/20 9:20 PM, Andrzej Pietrasiewicz wrote:
> Prepare for eliminating get_mode().
>
> Signed-off-by: Andrzej Pietrasiewicz <[email protected]>
Reviewed-by: Bartlomiej Zolnierkiewicz <[email protected]>
Best regards,
--
Bartlomiej Zolnierkiewicz
Samsung R&D Institute Poland
Samsung Electronics
> ---
> drivers/acpi/thermal.c | 18 ++++++----------
> .../ethernet/mellanox/mlxsw/core_thermal.c | 21 +++++++------------
> drivers/platform/x86/acerhdf.c | 15 ++++++-------
> drivers/thermal/da9062-thermal.c | 6 ++----
> drivers/thermal/imx_thermal.c | 17 +++++++--------
> .../intel/int340x_thermal/int3400_thermal.c | 12 +++--------
> .../thermal/intel/intel_quark_dts_thermal.c | 16 +++++++-------
> drivers/thermal/thermal_of.c | 10 +++------
> 8 files changed, 44 insertions(+), 71 deletions(-)
>
> diff --git a/drivers/acpi/thermal.c b/drivers/acpi/thermal.c
> index fb46070c66d8..4ba273f49d87 100644
> --- a/drivers/acpi/thermal.c
> +++ b/drivers/acpi/thermal.c
> @@ -172,7 +172,6 @@ struct acpi_thermal {
> struct acpi_thermal_trips trips;
> struct acpi_handle_list devices;
> struct thermal_zone_device *thermal_zone;
> - enum thermal_device_mode mode;
> int kelvin_offset; /* in millidegrees */
> struct work_struct thermal_check_work;
> };
> @@ -500,7 +499,7 @@ static void acpi_thermal_check(void *data)
> {
> struct acpi_thermal *tz = data;
>
> - if (tz->mode != THERMAL_DEVICE_ENABLED)
> + if (tz->thermal_zone->mode != THERMAL_DEVICE_ENABLED)
> return;
>
> thermal_zone_device_update(tz->thermal_zone,
> @@ -529,12 +528,7 @@ static int thermal_get_temp(struct thermal_zone_device *thermal, int *temp)
> static int thermal_get_mode(struct thermal_zone_device *thermal,
> enum thermal_device_mode *mode)
> {
> - struct acpi_thermal *tz = thermal->devdata;
> -
> - if (!tz)
> - return -EINVAL;
> -
> - *mode = tz->mode;
> + *mode = thermal->mode;
>
> return 0;
> }
> @@ -556,11 +550,11 @@ static int thermal_set_mode(struct thermal_zone_device *thermal,
> if (mode == THERMAL_DEVICE_DISABLED)
> pr_warn("thermal zone will be disabled\n");
>
> - if (mode != tz->mode) {
> - tz->mode = mode;
> + if (mode != tz->thermal_zone->mode) {
> + tz->thermal_zone->mode = mode;
> ACPI_DEBUG_PRINT((ACPI_DB_INFO,
> "%s kernel ACPI thermal control\n",
> - tz->mode == THERMAL_DEVICE_ENABLED ?
> + tz->thermal_zone->mode == THERMAL_DEVICE_ENABLED ?
> "Enable" : "Disable"));
> acpi_thermal_check(tz);
> }
> @@ -912,7 +906,7 @@ static int acpi_thermal_register_thermal_zone(struct acpi_thermal *tz)
> goto remove_dev_link;
> }
>
> - tz->mode = THERMAL_DEVICE_ENABLED;
> + tz->thermal_zone->mode = THERMAL_DEVICE_ENABLED;
>
> dev_info(&tz->device->dev, "registered as thermal_zone%d\n",
> tz->thermal_zone->id);
> diff --git a/drivers/net/ethernet/mellanox/mlxsw/core_thermal.c b/drivers/net/ethernet/mellanox/mlxsw/core_thermal.c
> index ce0a6837daa3..aa082e8a0b13 100644
> --- a/drivers/net/ethernet/mellanox/mlxsw/core_thermal.c
> +++ b/drivers/net/ethernet/mellanox/mlxsw/core_thermal.c
> @@ -98,7 +98,6 @@ struct mlxsw_thermal_module {
> struct mlxsw_thermal *parent;
> struct thermal_zone_device *tzdev;
> struct mlxsw_thermal_trip trips[MLXSW_THERMAL_NUM_TRIPS];
> - enum thermal_device_mode mode;
> int module; /* Module or gearbox number */
> };
>
> @@ -110,7 +109,6 @@ struct mlxsw_thermal {
> struct thermal_cooling_device *cdevs[MLXSW_MFCR_PWMS_MAX];
> u8 cooling_levels[MLXSW_THERMAL_MAX_STATE + 1];
> struct mlxsw_thermal_trip trips[MLXSW_THERMAL_NUM_TRIPS];
> - enum thermal_device_mode mode;
> struct mlxsw_thermal_module *tz_module_arr;
> u8 tz_module_num;
> struct mlxsw_thermal_module *tz_gearbox_arr;
> @@ -280,9 +278,7 @@ static int mlxsw_thermal_unbind(struct thermal_zone_device *tzdev,
> static int mlxsw_thermal_get_mode(struct thermal_zone_device *tzdev,
> enum thermal_device_mode *mode)
> {
> - struct mlxsw_thermal *thermal = tzdev->devdata;
> -
> - *mode = thermal->mode;
> + *mode = tzdev->mode;
>
> return 0;
> }
> @@ -299,9 +295,9 @@ static int mlxsw_thermal_set_mode(struct thermal_zone_device *tzdev,
> else
> tzdev->polling_delay = 0;
>
> + tzdev->mode = mode;
> mutex_unlock(&tzdev->lock);
>
> - thermal->mode = mode;
> thermal_zone_device_update(tzdev, THERMAL_EVENT_UNSPECIFIED);
>
> return 0;
> @@ -469,9 +465,7 @@ static int mlxsw_thermal_module_unbind(struct thermal_zone_device *tzdev,
> static int mlxsw_thermal_module_mode_get(struct thermal_zone_device *tzdev,
> enum thermal_device_mode *mode)
> {
> - struct mlxsw_thermal_module *tz = tzdev->devdata;
> -
> - *mode = tz->mode;
> + *mode = tzdev->mode;
>
> return 0;
> }
> @@ -489,9 +483,10 @@ static int mlxsw_thermal_module_mode_set(struct thermal_zone_device *tzdev,
> else
> tzdev->polling_delay = 0;
>
> + tzdev->mode = mode;
> +
> mutex_unlock(&tzdev->lock);
>
> - tz->mode = mode;
> thermal_zone_device_update(tzdev, THERMAL_EVENT_UNSPECIFIED);
>
> return 0;
> @@ -765,7 +760,7 @@ mlxsw_thermal_module_tz_init(struct mlxsw_thermal_module *module_tz)
> return err;
> }
>
> - module_tz->mode = THERMAL_DEVICE_ENABLED;
> + module_tz->tzdev->mode = THERMAL_DEVICE_ENABLED;
> return 0;
> }
>
> @@ -881,7 +876,7 @@ mlxsw_thermal_gearbox_tz_init(struct mlxsw_thermal_module *gearbox_tz)
> if (IS_ERR(gearbox_tz->tzdev))
> return PTR_ERR(gearbox_tz->tzdev);
>
> - gearbox_tz->mode = THERMAL_DEVICE_ENABLED;
> + gearbox_tz->tzdev->mode = THERMAL_DEVICE_ENABLED;
> return 0;
> }
>
> @@ -1050,7 +1045,7 @@ int mlxsw_thermal_init(struct mlxsw_core *core,
> if (err)
> goto err_unreg_modules_tzdev;
>
> - thermal->mode = THERMAL_DEVICE_ENABLED;
> + thermal->tzdev->mode = THERMAL_DEVICE_ENABLED;
> *p_thermal = thermal;
> return 0;
>
> diff --git a/drivers/platform/x86/acerhdf.c b/drivers/platform/x86/acerhdf.c
> index 830a8b060e74..97b288485837 100644
> --- a/drivers/platform/x86/acerhdf.c
> +++ b/drivers/platform/x86/acerhdf.c
> @@ -68,7 +68,6 @@ static int kernelmode = 1;
> #else
> static int kernelmode;
> #endif
> -static enum thermal_device_mode thermal_mode;
>
> static unsigned int interval = 10;
> static unsigned int fanon = 60000;
> @@ -398,15 +397,16 @@ static inline void acerhdf_revert_to_bios_mode(void)
> {
> acerhdf_change_fanstate(ACERHDF_FAN_AUTO);
> kernelmode = 0;
> - thermal_mode = THERMAL_DEVICE_DISABLED;
> - if (thz_dev)
> + if (thz_dev) {
> + thz_dev->mode = THERMAL_DEVICE_DISABLED;
> thz_dev->polling_delay = 0;
> + }
> pr_notice("kernel mode fan control OFF\n");
> }
> static inline void acerhdf_enable_kernelmode(void)
> {
> kernelmode = 1;
> - thermal_mode = THERMAL_DEVICE_ENABLED;
> + thz_dev->mode = THERMAL_DEVICE_ENABLED;
>
> thz_dev->polling_delay = interval*1000;
> thermal_zone_device_update(thz_dev, THERMAL_EVENT_UNSPECIFIED);
> @@ -419,7 +419,7 @@ static int acerhdf_get_mode(struct thermal_zone_device *thermal,
> if (verbose)
> pr_notice("kernel mode fan control %d\n", kernelmode);
>
> - *mode = thermal_mode;
> + *mode = thermal->mode;
>
> return 0;
> }
> @@ -741,8 +741,6 @@ static int __init acerhdf_register_thermal(void)
> if (IS_ERR(cl_dev))
> return -EINVAL;
>
> - thermal_mode = kernelmode ?
> - THERMAL_DEVICE_ENABLED : THERMAL_DEVICE_DISABLED;
> thz_dev = thermal_zone_device_register("acerhdf", 2, 0, NULL,
> &acerhdf_dev_ops,
> &acerhdf_zone_params, 0,
> @@ -750,6 +748,9 @@ static int __init acerhdf_register_thermal(void)
> if (IS_ERR(thz_dev))
> return -EINVAL;
>
> + thz_dev->mode = kernelmode ?
> + THERMAL_DEVICE_ENABLED : THERMAL_DEVICE_DISABLED;
> +
> if (strcmp(thz_dev->governor->name,
> acerhdf_zone_params.governor_name)) {
> pr_err("Didn't get thermal governor %s, perhaps not compiled into thermal subsystem.\n",
> diff --git a/drivers/thermal/da9062-thermal.c b/drivers/thermal/da9062-thermal.c
> index c32709badeda..a14c7981c7c7 100644
> --- a/drivers/thermal/da9062-thermal.c
> +++ b/drivers/thermal/da9062-thermal.c
> @@ -49,7 +49,6 @@ struct da9062_thermal {
> struct da9062 *hw;
> struct delayed_work work;
> struct thermal_zone_device *zone;
> - enum thermal_device_mode mode;
> struct mutex lock; /* protection for da9062_thermal temperature */
> int temperature;
> int irq;
> @@ -124,8 +123,7 @@ static irqreturn_t da9062_thermal_irq_handler(int irq, void *data)
> static int da9062_thermal_get_mode(struct thermal_zone_device *z,
> enum thermal_device_mode *mode)
> {
> - struct da9062_thermal *thermal = z->devdata;
> - *mode = thermal->mode;
> + *mode = z->mode;
> return 0;
> }
>
> @@ -233,7 +231,6 @@ static int da9062_thermal_probe(struct platform_device *pdev)
>
> thermal->config = match->data;
> thermal->hw = chip;
> - thermal->mode = THERMAL_DEVICE_ENABLED;
> thermal->dev = &pdev->dev;
>
> INIT_DELAYED_WORK(&thermal->work, da9062_thermal_poll_on);
> @@ -248,6 +245,7 @@ static int da9062_thermal_probe(struct platform_device *pdev)
> ret = PTR_ERR(thermal->zone);
> goto err;
> }
> + thermal->zone->mode = THERMAL_DEVICE_ENABLED;
>
> dev_dbg(&pdev->dev,
> "TJUNC temperature polling period set at %d ms\n",
> diff --git a/drivers/thermal/imx_thermal.c b/drivers/thermal/imx_thermal.c
> index e761c9b42217..9a1114d721b6 100644
> --- a/drivers/thermal/imx_thermal.c
> +++ b/drivers/thermal/imx_thermal.c
> @@ -197,7 +197,6 @@ struct imx_thermal_data {
> struct cpufreq_policy *policy;
> struct thermal_zone_device *tz;
> struct thermal_cooling_device *cdev;
> - enum thermal_device_mode mode;
> struct regmap *tempmon;
> u32 c1, c2; /* See formula in imx_init_calib() */
> int temp_passive;
> @@ -256,7 +255,7 @@ static int imx_get_temp(struct thermal_zone_device *tz, int *temp)
> bool wait;
> u32 val;
>
> - if (data->mode == THERMAL_DEVICE_ENABLED) {
> + if (tz->mode == THERMAL_DEVICE_ENABLED) {
> /* Check if a measurement is currently in progress */
> regmap_read(map, soc_data->temp_data, &val);
> wait = !(val & soc_data->temp_valid_mask);
> @@ -283,7 +282,7 @@ static int imx_get_temp(struct thermal_zone_device *tz, int *temp)
>
> regmap_read(map, soc_data->temp_data, &val);
>
> - if (data->mode != THERMAL_DEVICE_ENABLED) {
> + if (tz->mode != THERMAL_DEVICE_ENABLED) {
> regmap_write(map, soc_data->sensor_ctrl + REG_CLR,
> soc_data->measure_temp_mask);
> regmap_write(map, soc_data->sensor_ctrl + REG_SET,
> @@ -334,9 +333,7 @@ static int imx_get_temp(struct thermal_zone_device *tz, int *temp)
> static int imx_get_mode(struct thermal_zone_device *tz,
> enum thermal_device_mode *mode)
> {
> - struct imx_thermal_data *data = tz->devdata;
> -
> - *mode = data->mode;
> + *mode = tz->mode;
>
> return 0;
> }
> @@ -376,7 +373,7 @@ static int imx_set_mode(struct thermal_zone_device *tz,
> }
> }
>
> - data->mode = mode;
> + tz->mode = mode;
> thermal_zone_device_update(tz, THERMAL_EVENT_UNSPECIFIED);
>
> return 0;
> @@ -831,7 +828,7 @@ static int imx_thermal_probe(struct platform_device *pdev)
> data->socdata->measure_temp_mask);
>
> data->irq_enabled = true;
> - data->mode = THERMAL_DEVICE_ENABLED;
> + data->tz->mode = THERMAL_DEVICE_ENABLED;
>
> ret = devm_request_threaded_irq(&pdev->dev, data->irq,
> imx_thermal_alarm_irq, imx_thermal_alarm_irq_thread,
> @@ -885,7 +882,7 @@ static int __maybe_unused imx_thermal_suspend(struct device *dev)
> data->socdata->measure_temp_mask);
> regmap_write(map, data->socdata->sensor_ctrl + REG_SET,
> data->socdata->power_down_mask);
> - data->mode = THERMAL_DEVICE_DISABLED;
> + data->tz->mode = THERMAL_DEVICE_DISABLED;
> clk_disable_unprepare(data->thermal_clk);
>
> return 0;
> @@ -905,7 +902,7 @@ static int __maybe_unused imx_thermal_resume(struct device *dev)
> data->socdata->power_down_mask);
> regmap_write(map, data->socdata->sensor_ctrl + REG_SET,
> data->socdata->measure_temp_mask);
> - data->mode = THERMAL_DEVICE_ENABLED;
> + data->tz->mode = THERMAL_DEVICE_ENABLED;
>
> return 0;
> }
> diff --git a/drivers/thermal/intel/int340x_thermal/int3400_thermal.c b/drivers/thermal/intel/int340x_thermal/int3400_thermal.c
> index e84faaadff87..f65b2fc09198 100644
> --- a/drivers/thermal/intel/int340x_thermal/int3400_thermal.c
> +++ b/drivers/thermal/intel/int340x_thermal/int3400_thermal.c
> @@ -48,7 +48,6 @@ struct int3400_thermal_priv {
> struct acpi_device *adev;
> struct platform_device *pdev;
> struct thermal_zone_device *thermal;
> - enum thermal_device_mode mode;
> int art_count;
> struct art *arts;
> int trt_count;
> @@ -381,12 +380,7 @@ static int int3400_thermal_get_temp(struct thermal_zone_device *thermal,
> static int int3400_thermal_get_mode(struct thermal_zone_device *thermal,
> enum thermal_device_mode *mode)
> {
> - struct int3400_thermal_priv *priv = thermal->devdata;
> -
> - if (!priv)
> - return -EINVAL;
> -
> - *mode = priv->mode;
> + *mode = thermal->mode;
>
> return 0;
> }
> @@ -404,8 +398,8 @@ static int int3400_thermal_set_mode(struct thermal_zone_device *thermal,
> mode != THERMAL_DEVICE_DISABLED)
> return -EINVAL;
>
> - if (mode != priv->mode) {
> - priv->mode = mode;
> + if (mode != thermal->mode) {
> + thermal->mode = mode;
> result = int3400_thermal_run_osc(priv->adev->handle,
> priv->current_uuid_index,
> mode == THERMAL_DEVICE_ENABLED);
> diff --git a/drivers/thermal/intel/intel_quark_dts_thermal.c b/drivers/thermal/intel/intel_quark_dts_thermal.c
> index d704fc104cfd..d77cb3df5ade 100644
> --- a/drivers/thermal/intel/intel_quark_dts_thermal.c
> +++ b/drivers/thermal/intel/intel_quark_dts_thermal.c
> @@ -103,7 +103,6 @@ struct soc_sensor_entry {
> bool locked;
> u32 store_ptps;
> u32 store_dts_enable;
> - enum thermal_device_mode mode;
> struct thermal_zone_device *tzone;
> };
>
> @@ -128,7 +127,7 @@ static int soc_dts_enable(struct thermal_zone_device *tzd)
> return ret;
>
> if (out & QRK_DTS_ENABLE_BIT) {
> - aux_entry->mode = THERMAL_DEVICE_ENABLED;
> + tzd->mode = THERMAL_DEVICE_ENABLED;
> return 0;
> }
>
> @@ -139,9 +138,9 @@ static int soc_dts_enable(struct thermal_zone_device *tzd)
> if (ret)
> return ret;
>
> - aux_entry->mode = THERMAL_DEVICE_ENABLED;
> + tzd->mode = THERMAL_DEVICE_ENABLED;
> } else {
> - aux_entry->mode = THERMAL_DEVICE_DISABLED;
> + tzd->mode = THERMAL_DEVICE_DISABLED;
> pr_info("DTS is locked. Cannot enable DTS\n");
> ret = -EPERM;
> }
> @@ -161,7 +160,7 @@ static int soc_dts_disable(struct thermal_zone_device *tzd)
> return ret;
>
> if (!(out & QRK_DTS_ENABLE_BIT)) {
> - aux_entry->mode = THERMAL_DEVICE_DISABLED;
> + tzd->mode = THERMAL_DEVICE_DISABLED;
> return 0;
> }
>
> @@ -173,9 +172,9 @@ static int soc_dts_disable(struct thermal_zone_device *tzd)
> if (ret)
> return ret;
>
> - aux_entry->mode = THERMAL_DEVICE_DISABLED;
> + tzd->mode = THERMAL_DEVICE_DISABLED;
> } else {
> - aux_entry->mode = THERMAL_DEVICE_ENABLED;
> + tzd->mode = THERMAL_DEVICE_ENABLED;
> pr_info("DTS is locked. Cannot disable DTS\n");
> ret = -EPERM;
> }
> @@ -312,8 +311,7 @@ static int sys_get_curr_temp(struct thermal_zone_device *tzd,
> static int sys_get_mode(struct thermal_zone_device *tzd,
> enum thermal_device_mode *mode)
> {
> - struct soc_sensor_entry *aux_entry = tzd->devdata;
> - *mode = aux_entry->mode;
> + *mode = tzd->mode;
> return 0;
> }
>
> diff --git a/drivers/thermal/thermal_of.c b/drivers/thermal/thermal_of.c
> index ddf88dbe7ba2..c495b1e48ef2 100644
> --- a/drivers/thermal/thermal_of.c
> +++ b/drivers/thermal/thermal_of.c
> @@ -51,7 +51,6 @@ struct __thermal_bind_params {
>
> /**
> * struct __thermal_zone - internal representation of a thermal zone
> - * @mode: current thermal zone device mode (enabled/disabled)
> * @passive_delay: polling interval while passive cooling is activated
> * @polling_delay: zone polling interval
> * @slope: slope of the temperature adjustment curve
> @@ -65,7 +64,6 @@ struct __thermal_bind_params {
> */
>
> struct __thermal_zone {
> - enum thermal_device_mode mode;
> int passive_delay;
> int polling_delay;
> int slope;
> @@ -272,9 +270,7 @@ static int of_thermal_unbind(struct thermal_zone_device *thermal,
> static int of_thermal_get_mode(struct thermal_zone_device *tz,
> enum thermal_device_mode *mode)
> {
> - struct __thermal_zone *data = tz->devdata;
> -
> - *mode = data->mode;
> + *mode = tz->mode;
>
> return 0;
> }
> @@ -296,7 +292,7 @@ static int of_thermal_set_mode(struct thermal_zone_device *tz,
>
> mutex_unlock(&tz->lock);
>
> - data->mode = mode;
> + tz->mode = mode;
> thermal_zone_device_update(tz, THERMAL_EVENT_UNSPECIFIED);
>
> return 0;
> @@ -979,7 +975,6 @@ __init *thermal_of_build_thermal_zone(struct device_node *np)
>
> finish:
> of_node_put(child);
> - tz->mode = THERMAL_DEVICE_DISABLED;
>
> return tz;
>
> @@ -1134,6 +1129,7 @@ int __init of_parse_thermal_zones(void)
> of_thermal_free_zone(tz);
> /* attempting to build remaining zones still */
> }
> + zone->mode = THERMAL_DEVICE_DISABLED;
> }
> of_node_put(np);
>
>
On 5/28/20 9:20 PM, Andrzej Pietrasiewicz wrote:
> get_mode() is now redundant, as the state is stored in struct
> thermal_zone_device.
>
> Consequently the "mode" attribute in sysfs can always be visible, because
> it is always possible to get the mode from struct tzd.
>
> Signed-off-by: Andrzej Pietrasiewicz <[email protected]>
The side-effect of splitting the v3 is that some devices will be
marked in sysfs as disabled (however they are in reality enabled)
after applying this patch (it gets fixed by patch #08).
I think that we can live with that so:
Reviewed-by: Bartlomiej Zolnierkiewicz <[email protected]>
Best regards,
--
Bartlomiej Zolnierkiewicz
Samsung R&D Institute Poland
Samsung Electronics
> ---
> drivers/acpi/thermal.c | 9 ------
> .../ethernet/mellanox/mlxsw/core_thermal.c | 19 ------------
> drivers/platform/x86/acerhdf.c | 12 --------
> drivers/thermal/da9062-thermal.c | 8 -----
> drivers/thermal/imx_thermal.c | 9 ------
> .../intel/int340x_thermal/int3400_thermal.c | 9 ------
> .../thermal/intel/intel_quark_dts_thermal.c | 8 -----
> drivers/thermal/thermal_core.c | 7 +----
> drivers/thermal/thermal_of.c | 9 ------
> drivers/thermal/thermal_sysfs.c | 30 ++-----------------
> include/linux/thermal.h | 2 --
> 11 files changed, 3 insertions(+), 119 deletions(-)
>
> diff --git a/drivers/acpi/thermal.c b/drivers/acpi/thermal.c
> index 4ba273f49d87..592be97c4456 100644
> --- a/drivers/acpi/thermal.c
> +++ b/drivers/acpi/thermal.c
> @@ -525,14 +525,6 @@ static int thermal_get_temp(struct thermal_zone_device *thermal, int *temp)
> return 0;
> }
>
> -static int thermal_get_mode(struct thermal_zone_device *thermal,
> - enum thermal_device_mode *mode)
> -{
> - *mode = thermal->mode;
> -
> - return 0;
> -}
> -
> static int thermal_set_mode(struct thermal_zone_device *thermal,
> enum thermal_device_mode mode)
> {
> @@ -847,7 +839,6 @@ static struct thermal_zone_device_ops acpi_thermal_zone_ops = {
> .bind = acpi_thermal_bind_cooling_device,
> .unbind = acpi_thermal_unbind_cooling_device,
> .get_temp = thermal_get_temp,
> - .get_mode = thermal_get_mode,
> .set_mode = thermal_set_mode,
> .get_trip_type = thermal_get_trip_type,
> .get_trip_temp = thermal_get_trip_temp,
> diff --git a/drivers/net/ethernet/mellanox/mlxsw/core_thermal.c b/drivers/net/ethernet/mellanox/mlxsw/core_thermal.c
> index aa082e8a0b13..6e26678ac312 100644
> --- a/drivers/net/ethernet/mellanox/mlxsw/core_thermal.c
> +++ b/drivers/net/ethernet/mellanox/mlxsw/core_thermal.c
> @@ -275,14 +275,6 @@ static int mlxsw_thermal_unbind(struct thermal_zone_device *tzdev,
> return 0;
> }
>
> -static int mlxsw_thermal_get_mode(struct thermal_zone_device *tzdev,
> - enum thermal_device_mode *mode)
> -{
> - *mode = tzdev->mode;
> -
> - return 0;
> -}
> -
> static int mlxsw_thermal_set_mode(struct thermal_zone_device *tzdev,
> enum thermal_device_mode mode)
> {
> @@ -403,7 +395,6 @@ static int mlxsw_thermal_trend_get(struct thermal_zone_device *tzdev,
> static struct thermal_zone_device_ops mlxsw_thermal_ops = {
> .bind = mlxsw_thermal_bind,
> .unbind = mlxsw_thermal_unbind,
> - .get_mode = mlxsw_thermal_get_mode,
> .set_mode = mlxsw_thermal_set_mode,
> .get_temp = mlxsw_thermal_get_temp,
> .get_trip_type = mlxsw_thermal_get_trip_type,
> @@ -462,14 +453,6 @@ static int mlxsw_thermal_module_unbind(struct thermal_zone_device *tzdev,
> return err;
> }
>
> -static int mlxsw_thermal_module_mode_get(struct thermal_zone_device *tzdev,
> - enum thermal_device_mode *mode)
> -{
> - *mode = tzdev->mode;
> -
> - return 0;
> -}
> -
> static int mlxsw_thermal_module_mode_set(struct thermal_zone_device *tzdev,
> enum thermal_device_mode mode)
> {
> @@ -591,7 +574,6 @@ mlxsw_thermal_module_trip_hyst_set(struct thermal_zone_device *tzdev, int trip,
> static struct thermal_zone_device_ops mlxsw_thermal_module_ops = {
> .bind = mlxsw_thermal_module_bind,
> .unbind = mlxsw_thermal_module_unbind,
> - .get_mode = mlxsw_thermal_module_mode_get,
> .set_mode = mlxsw_thermal_module_mode_set,
> .get_temp = mlxsw_thermal_module_temp_get,
> .get_trip_type = mlxsw_thermal_module_trip_type_get,
> @@ -630,7 +612,6 @@ static int mlxsw_thermal_gearbox_temp_get(struct thermal_zone_device *tzdev,
> static struct thermal_zone_device_ops mlxsw_thermal_gearbox_ops = {
> .bind = mlxsw_thermal_module_bind,
> .unbind = mlxsw_thermal_module_unbind,
> - .get_mode = mlxsw_thermal_module_mode_get,
> .set_mode = mlxsw_thermal_module_mode_set,
> .get_temp = mlxsw_thermal_gearbox_temp_get,
> .get_trip_type = mlxsw_thermal_module_trip_type_get,
> diff --git a/drivers/platform/x86/acerhdf.c b/drivers/platform/x86/acerhdf.c
> index 97b288485837..32c5fe16b7f7 100644
> --- a/drivers/platform/x86/acerhdf.c
> +++ b/drivers/platform/x86/acerhdf.c
> @@ -413,17 +413,6 @@ static inline void acerhdf_enable_kernelmode(void)
> pr_notice("kernel mode fan control ON\n");
> }
>
> -static int acerhdf_get_mode(struct thermal_zone_device *thermal,
> - enum thermal_device_mode *mode)
> -{
> - if (verbose)
> - pr_notice("kernel mode fan control %d\n", kernelmode);
> -
> - *mode = thermal->mode;
> -
> - return 0;
> -}
> -
> /*
> * set operation mode;
> * enabled: the thermal layer of the kernel takes care about
> @@ -490,7 +479,6 @@ static struct thermal_zone_device_ops acerhdf_dev_ops = {
> .bind = acerhdf_bind,
> .unbind = acerhdf_unbind,
> .get_temp = acerhdf_get_ec_temp,
> - .get_mode = acerhdf_get_mode,
> .set_mode = acerhdf_set_mode,
> .get_trip_type = acerhdf_get_trip_type,
> .get_trip_hyst = acerhdf_get_trip_hyst,
> diff --git a/drivers/thermal/da9062-thermal.c b/drivers/thermal/da9062-thermal.c
> index a14c7981c7c7..a7ac8afb063e 100644
> --- a/drivers/thermal/da9062-thermal.c
> +++ b/drivers/thermal/da9062-thermal.c
> @@ -120,13 +120,6 @@ static irqreturn_t da9062_thermal_irq_handler(int irq, void *data)
> return IRQ_HANDLED;
> }
>
> -static int da9062_thermal_get_mode(struct thermal_zone_device *z,
> - enum thermal_device_mode *mode)
> -{
> - *mode = z->mode;
> - return 0;
> -}
> -
> static int da9062_thermal_get_trip_type(struct thermal_zone_device *z,
> int trip,
> enum thermal_trip_type *type)
> @@ -179,7 +172,6 @@ static int da9062_thermal_get_temp(struct thermal_zone_device *z,
>
> static struct thermal_zone_device_ops da9062_thermal_ops = {
> .get_temp = da9062_thermal_get_temp,
> - .get_mode = da9062_thermal_get_mode,
> .get_trip_type = da9062_thermal_get_trip_type,
> .get_trip_temp = da9062_thermal_get_trip_temp,
> };
> diff --git a/drivers/thermal/imx_thermal.c b/drivers/thermal/imx_thermal.c
> index 9a1114d721b6..2c7ee5da608a 100644
> --- a/drivers/thermal/imx_thermal.c
> +++ b/drivers/thermal/imx_thermal.c
> @@ -330,14 +330,6 @@ static int imx_get_temp(struct thermal_zone_device *tz, int *temp)
> return 0;
> }
>
> -static int imx_get_mode(struct thermal_zone_device *tz,
> - enum thermal_device_mode *mode)
> -{
> - *mode = tz->mode;
> -
> - return 0;
> -}
> -
> static int imx_set_mode(struct thermal_zone_device *tz,
> enum thermal_device_mode mode)
> {
> @@ -464,7 +456,6 @@ static struct thermal_zone_device_ops imx_tz_ops = {
> .bind = imx_bind,
> .unbind = imx_unbind,
> .get_temp = imx_get_temp,
> - .get_mode = imx_get_mode,
> .set_mode = imx_set_mode,
> .get_trip_type = imx_get_trip_type,
> .get_trip_temp = imx_get_trip_temp,
> diff --git a/drivers/thermal/intel/int340x_thermal/int3400_thermal.c b/drivers/thermal/intel/int340x_thermal/int3400_thermal.c
> index f65b2fc09198..9a622aaf29dd 100644
> --- a/drivers/thermal/intel/int340x_thermal/int3400_thermal.c
> +++ b/drivers/thermal/intel/int340x_thermal/int3400_thermal.c
> @@ -377,14 +377,6 @@ static int int3400_thermal_get_temp(struct thermal_zone_device *thermal,
> return 0;
> }
>
> -static int int3400_thermal_get_mode(struct thermal_zone_device *thermal,
> - enum thermal_device_mode *mode)
> -{
> - *mode = thermal->mode;
> -
> - return 0;
> -}
> -
> static int int3400_thermal_set_mode(struct thermal_zone_device *thermal,
> enum thermal_device_mode mode)
> {
> @@ -412,7 +404,6 @@ static int int3400_thermal_set_mode(struct thermal_zone_device *thermal,
>
> static struct thermal_zone_device_ops int3400_thermal_ops = {
> .get_temp = int3400_thermal_get_temp,
> - .get_mode = int3400_thermal_get_mode,
> .set_mode = int3400_thermal_set_mode,
> };
>
> diff --git a/drivers/thermal/intel/intel_quark_dts_thermal.c b/drivers/thermal/intel/intel_quark_dts_thermal.c
> index d77cb3df5ade..c4879b4bfbf1 100644
> --- a/drivers/thermal/intel/intel_quark_dts_thermal.c
> +++ b/drivers/thermal/intel/intel_quark_dts_thermal.c
> @@ -308,13 +308,6 @@ static int sys_get_curr_temp(struct thermal_zone_device *tzd,
> return 0;
> }
>
> -static int sys_get_mode(struct thermal_zone_device *tzd,
> - enum thermal_device_mode *mode)
> -{
> - *mode = tzd->mode;
> - return 0;
> -}
> -
> static int sys_set_mode(struct thermal_zone_device *tzd,
> enum thermal_device_mode mode)
> {
> @@ -336,7 +329,6 @@ static struct thermal_zone_device_ops tzone_ops = {
> .get_trip_type = sys_get_trip_type,
> .set_trip_temp = sys_set_trip_temp,
> .get_crit_temp = sys_get_crit_temp,
> - .get_mode = sys_get_mode,
> .set_mode = sys_set_mode,
> };
>
> diff --git a/drivers/thermal/thermal_core.c b/drivers/thermal/thermal_core.c
> index b71196eaf90e..14d3b1b94c4f 100644
> --- a/drivers/thermal/thermal_core.c
> +++ b/drivers/thermal/thermal_core.c
> @@ -1456,7 +1456,6 @@ static int thermal_pm_notify(struct notifier_block *nb,
> unsigned long mode, void *_unused)
> {
> struct thermal_zone_device *tz;
> - enum thermal_device_mode tz_mode;
>
> switch (mode) {
> case PM_HIBERNATION_PREPARE:
> @@ -1469,11 +1468,7 @@ static int thermal_pm_notify(struct notifier_block *nb,
> case PM_POST_SUSPEND:
> atomic_set(&in_suspend, 0);
> list_for_each_entry(tz, &thermal_tz_list, node) {
> - tz_mode = THERMAL_DEVICE_ENABLED;
> - if (tz->ops->get_mode)
> - tz->ops->get_mode(tz, &tz_mode);
> -
> - if (tz_mode == THERMAL_DEVICE_DISABLED)
> + if (tz->mode == THERMAL_DEVICE_DISABLED)
> continue;
>
> thermal_zone_device_init(tz);
> diff --git a/drivers/thermal/thermal_of.c b/drivers/thermal/thermal_of.c
> index c495b1e48ef2..ba65d48a48cb 100644
> --- a/drivers/thermal/thermal_of.c
> +++ b/drivers/thermal/thermal_of.c
> @@ -267,14 +267,6 @@ static int of_thermal_unbind(struct thermal_zone_device *thermal,
> return 0;
> }
>
> -static int of_thermal_get_mode(struct thermal_zone_device *tz,
> - enum thermal_device_mode *mode)
> -{
> - *mode = tz->mode;
> -
> - return 0;
> -}
> -
> static int of_thermal_set_mode(struct thermal_zone_device *tz,
> enum thermal_device_mode mode)
> {
> @@ -389,7 +381,6 @@ static int of_thermal_get_crit_temp(struct thermal_zone_device *tz,
> }
>
> static struct thermal_zone_device_ops of_thermal_ops = {
> - .get_mode = of_thermal_get_mode,
> .set_mode = of_thermal_set_mode,
>
> .get_trip_type = of_thermal_get_trip_type,
> diff --git a/drivers/thermal/thermal_sysfs.c b/drivers/thermal/thermal_sysfs.c
> index aa99edb4dff7..096370977068 100644
> --- a/drivers/thermal/thermal_sysfs.c
> +++ b/drivers/thermal/thermal_sysfs.c
> @@ -49,18 +49,9 @@ static ssize_t
> mode_show(struct device *dev, struct device_attribute *attr, char *buf)
> {
> struct thermal_zone_device *tz = to_thermal_zone(dev);
> - enum thermal_device_mode mode;
> - int result;
> -
> - if (!tz->ops->get_mode)
> - return -EPERM;
>
> - result = tz->ops->get_mode(tz, &mode);
> - if (result)
> - return result;
> -
> - return sprintf(buf, "%s\n", mode == THERMAL_DEVICE_ENABLED ? "enabled"
> - : "disabled");
> + return sprintf(buf, "%s\n", tz->mode == THERMAL_DEVICE_ENABLED ?
> + "enabled" : "disabled");
> }
>
> static ssize_t
> @@ -428,30 +419,13 @@ static struct attribute_group thermal_zone_attribute_group = {
> .attrs = thermal_zone_dev_attrs,
> };
>
> -/* We expose mode only if .get_mode is present */
> static struct attribute *thermal_zone_mode_attrs[] = {
> &dev_attr_mode.attr,
> NULL,
> };
>
> -static umode_t thermal_zone_mode_is_visible(struct kobject *kobj,
> - struct attribute *attr,
> - int attrno)
> -{
> - struct device *dev = container_of(kobj, struct device, kobj);
> - struct thermal_zone_device *tz;
> -
> - tz = container_of(dev, struct thermal_zone_device, device);
> -
> - if (tz->ops->get_mode)
> - return attr->mode;
> -
> - return 0;
> -}
> -
> static struct attribute_group thermal_zone_mode_attribute_group = {
> .attrs = thermal_zone_mode_attrs,
> - .is_visible = thermal_zone_mode_is_visible,
> };
>
> /* We expose passive only if passive trips are present */
> diff --git a/include/linux/thermal.h b/include/linux/thermal.h
> index 5f91d7f04512..a808f6fa2777 100644
> --- a/include/linux/thermal.h
> +++ b/include/linux/thermal.h
> @@ -76,8 +76,6 @@ struct thermal_zone_device_ops {
> struct thermal_cooling_device *);
> int (*get_temp) (struct thermal_zone_device *, int *);
> int (*set_trips) (struct thermal_zone_device *, int, int);
> - int (*get_mode) (struct thermal_zone_device *,
> - enum thermal_device_mode *);
> int (*set_mode) (struct thermal_zone_device *,
> enum thermal_device_mode);
> int (*get_trip_type) (struct thermal_zone_device *, int,
>
On 5/28/20 9:20 PM, Andrzej Pietrasiewicz wrote:
> Prepare for making the drivers not access tzd's private members.
>
> Signed-off-by: Andrzej Pietrasiewicz <[email protected]>
Reviewed-by: Bartlomiej Zolnierkiewicz <[email protected]>
Best regards,
--
Bartlomiej Zolnierkiewicz
Samsung R&D Institute Poland
Samsung Electronics
> ---
> drivers/thermal/thermal_core.c | 53 ++++++++++++++++++++++++++++++++++
> include/linux/thermal.h | 13 +++++++++
> 2 files changed, 66 insertions(+)
>
> diff --git a/drivers/thermal/thermal_core.c b/drivers/thermal/thermal_core.c
> index 14d3b1b94c4f..f2a5c5ee3455 100644
> --- a/drivers/thermal/thermal_core.c
> +++ b/drivers/thermal/thermal_core.c
> @@ -459,6 +459,59 @@ static void thermal_zone_device_reset(struct thermal_zone_device *tz)
> thermal_zone_device_init(tz);
> }
>
> +int thermal_zone_device_set_mode(struct thermal_zone_device *tz,
> + enum thermal_device_mode mode)
> +{
> + int ret = 0;
> +
> + mutex_lock(&tz->lock);
> +
> + /* do nothing if mode isn't changing */
> + if (mode == tz->mode) {
> + mutex_unlock(&tz->lock);
> +
> + return ret;
> + }
> +
> + if (tz->ops->set_mode)
> + ret = tz->ops->set_mode(tz, mode);
> +
> + if (!ret)
> + tz->mode = mode;
> +
> + mutex_unlock(&tz->lock);
> +
> + thermal_zone_device_update(tz, THERMAL_EVENT_UNSPECIFIED);
> +
> + return ret;
> +}
> +
> +int thermal_zone_device_enable(struct thermal_zone_device *tz)
> +{
> + return thermal_zone_device_set_mode(tz, THERMAL_DEVICE_ENABLED);
> +}
> +EXPORT_SYMBOL(thermal_zone_device_enable);
> +
> +int thermal_zone_device_disable(struct thermal_zone_device *tz)
> +{
> + return thermal_zone_device_set_mode(tz, THERMAL_DEVICE_DISABLED);
> +}
> +EXPORT_SYMBOL(thermal_zone_device_disable);
> +
> +int thermal_zone_device_is_enabled(struct thermal_zone_device *tz)
> +{
> + enum thermal_device_mode mode;
> +
> + mutex_lock(&tz->lock);
> +
> + mode = tz->mode;
> +
> + mutex_unlock(&tz->lock);
> +
> + return mode == THERMAL_DEVICE_ENABLED;
> +}
> +EXPORT_SYMBOL(thermal_zone_device_is_enabled);
> +
> void thermal_zone_device_update(struct thermal_zone_device *tz,
> enum thermal_notify_event event)
> {
> diff --git a/include/linux/thermal.h b/include/linux/thermal.h
> index a808f6fa2777..df013c39ba9b 100644
> --- a/include/linux/thermal.h
> +++ b/include/linux/thermal.h
> @@ -416,6 +416,9 @@ int thermal_zone_get_offset(struct thermal_zone_device *tz);
>
> void thermal_cdev_update(struct thermal_cooling_device *);
> void thermal_notify_framework(struct thermal_zone_device *, int);
> +int thermal_zone_device_enable(struct thermal_zone_device *tz);
> +int thermal_zone_device_disable(struct thermal_zone_device *tz);
> +int thermal_zone_device_is_enabled(struct thermal_zone_device *tz);
> #else
> static inline struct thermal_zone_device *thermal_zone_device_register(
> const char *type, int trips, int mask, void *devdata,
> @@ -463,6 +466,16 @@ static inline void thermal_cdev_update(struct thermal_cooling_device *cdev)
> static inline void thermal_notify_framework(struct thermal_zone_device *tz,
> int trip)
> { }
> +
> +static inline int thermal_zone_device_enable(struct thermal_zone_device *tz)
> +{ return -ENODEV; }
> +
> +static inline int thermal_zone_device_disable(struct thermal_zone_device *tz)
> +{ return -ENODEV; }
> +
> +static inline int
> +thermal_zone_device_is_enabled(struct thermal_zone_device *tz)
> +{ return -ENODEV; }
> #endif /* CONFIG_THERMAL */
>
> #endif /* __THERMAL_H__ */
>
On 5/28/20 9:20 PM, Andrzej Pietrasiewicz wrote:
> Use thermal_zone_device_{en|dis}able() and thermal_zone_device_is_enabled().
>
> Consequently, all set_mode() implementations in drivers:
>
> - can stop modifying tzd's "mode" member,
> - shall stop taking tzd's lock, as it is taken in the helpers
> - shall stop calling thermal_zone_device_update() as it is called in the
> helpers
> - can assume they are called when the mode truly changes, so checks to
> verify that can be dropped
>
> Not providing set_mode() by a driver no longer prevents the core from
> being able to set tzd's mode, so the relevant check in mode_store() is
> removed.
>
> Other comments:
>
> - acpi/thermal.c: tz->thermal_zone->mode will be updated only after we
> return from set_mode(), so use function parameter in thermal_set_mode()
> instead, no need to call acpi_thermal_check() in set_mode()
> - thermal/imx_thermal.c: regmap writes and mode assignment are done in
> thermal_zone_device_{en|dis}able() and set_mode() callback
> - thermal/intel/intel_quark_dts_thermal.c: soc_dts_{en|dis}able() are a
> part of set_mode() callback, so they don't need to modify tzd->mode, and
> don't need to fall back to the opposite mode if unsuccessful, as the return
> value will be propagated to thermal_zone_device_{en|dis}able() and
> ultimately tzd's member will not be changed in thermal_zone_device_set_mode().
> - thermal/of-thermal.c: no need to set zone->mode to DISABLED in
> of_parse_thermal_zones() as a tzd is kzalloc'ed so mode is DISABLED anyway
>
> Signed-off-by: Andrzej Pietrasiewicz <[email protected]>
> ---
> drivers/acpi/thermal.c | 21 ++++++-----
> .../ethernet/mellanox/mlxsw/core_thermal.c | 37 +++++++++----------
> drivers/platform/x86/acerhdf.c | 17 +++++----
> drivers/thermal/da9062-thermal.c | 6 ++-
> drivers/thermal/hisi_thermal.c | 6 ++-
> drivers/thermal/imx_thermal.c | 33 +++++++----------
> .../intel/int340x_thermal/int3400_thermal.c | 5 +--
> .../thermal/intel/intel_quark_dts_thermal.c | 18 ++-------
> drivers/thermal/rockchip_thermal.c | 6 ++-
> drivers/thermal/sprd_thermal.c | 6 ++-
> drivers/thermal/thermal_core.c | 2 +-
> drivers/thermal/thermal_of.c | 10 +----
> drivers/thermal/thermal_sysfs.c | 11 ++----
> 13 files changed, 80 insertions(+), 98 deletions(-)
[...]
> diff --git a/drivers/platform/x86/acerhdf.c b/drivers/platform/x86/acerhdf.c
> index 32c5fe16b7f7..3efe749dc5a0 100644
> --- a/drivers/platform/x86/acerhdf.c
> +++ b/drivers/platform/x86/acerhdf.c
> @@ -397,19 +397,16 @@ static inline void acerhdf_revert_to_bios_mode(void)
> {
> acerhdf_change_fanstate(ACERHDF_FAN_AUTO);
> kernelmode = 0;
> - if (thz_dev) {
> - thz_dev->mode = THERMAL_DEVICE_DISABLED;
> + if (thz_dev)
> thz_dev->polling_delay = 0;
> - }
> +
> pr_notice("kernel mode fan control OFF\n");
> }
> static inline void acerhdf_enable_kernelmode(void)
> {
> kernelmode = 1;
> - thz_dev->mode = THERMAL_DEVICE_ENABLED;
>
> thz_dev->polling_delay = interval*1000;
> - thermal_zone_device_update(thz_dev, THERMAL_EVENT_UNSPECIFIED);
> pr_notice("kernel mode fan control ON\n");
> }
>
> @@ -723,6 +720,8 @@ static void acerhdf_unregister_platform(void)
>
> static int __init acerhdf_register_thermal(void)
> {
> + int ret;
> +
> cl_dev = thermal_cooling_device_register("acerhdf-fan", NULL,
> &acerhdf_cooling_ops);
>
> @@ -736,8 +735,12 @@ static int __init acerhdf_register_thermal(void)
> if (IS_ERR(thz_dev))
> return -EINVAL;
>
> - thz_dev->mode = kernelmode ?
> - THERMAL_DEVICE_ENABLED : THERMAL_DEVICE_DISABLED;
> + if (kernelmode)
> + ret = thermal_zone_device_enable(thz_dev);
> + else
> + ret = thermal_zone_device_disable(thz_dev);
> + if (ret)
Cleanup on error seems to be missing here.
> + return ret;
>
> if (strcmp(thz_dev->governor->name,
> acerhdf_zone_params.governor_name)) {
Best regards,
--
Bartlomiej Zolnierkiewicz
Samsung R&D Institute Poland
Samsung Electronics
On 5/28/20 9:20 PM, Andrzej Pietrasiewicz wrote:
> Some thermal zone devices never change their state, so they should be
> always enabled.
>
> Signed-off-by: Andrzej Pietrasiewicz <[email protected]>
> ---
> drivers/net/ethernet/chelsio/cxgb4/cxgb4_thermal.c | 8 ++++++++
> drivers/net/wireless/intel/iwlwifi/mvm/tt.c | 9 ++++++++-
> drivers/platform/x86/intel_mid_thermal.c | 6 ++++++
> drivers/power/supply/power_supply_core.c | 9 +++++++--
> drivers/thermal/armada_thermal.c | 6 ++++++
> drivers/thermal/dove_thermal.c | 6 ++++++
> .../thermal/intel/int340x_thermal/int3400_thermal.c | 5 +++++
> .../intel/int340x_thermal/int340x_thermal_zone.c | 5 +++++
> drivers/thermal/intel/intel_pch_thermal.c | 5 +++++
> drivers/thermal/intel/intel_soc_dts_iosf.c | 3 +++
> drivers/thermal/intel/x86_pkg_temp_thermal.c | 6 ++++++
> drivers/thermal/kirkwood_thermal.c | 7 +++++++
> drivers/thermal/rcar_thermal.c | 9 ++++++++-
> drivers/thermal/spear_thermal.c | 7 +++++++
> drivers/thermal/st/st_thermal.c | 5 +++++
> drivers/thermal/thermal_of.c | 10 +++++++++-
> 16 files changed, 101 insertions(+), 5 deletions(-)
[...]
> diff --git a/drivers/thermal/intel/int340x_thermal/int3400_thermal.c b/drivers/thermal/intel/int340x_thermal/int3400_thermal.c
> index 3c0397a29b8c..8e8c9af7e5f4 100644
> --- a/drivers/thermal/intel/int340x_thermal/int3400_thermal.c
> +++ b/drivers/thermal/intel/int340x_thermal/int3400_thermal.c
> @@ -485,6 +485,10 @@ static int int3400_thermal_probe(struct platform_device *pdev)
> goto free_art_trt;
> }
>
> + result = thermal_zone_device_enable(priv->thermal);
I'm not sure about correctness of this addition.
This driver contains ->set_mode but doesn't call it on initialization
(in v3 it was using THERMAL_DEVICE_DISABLED as .initial_mode parameter).
> + if (result)
> + goto free_tzd;
> +
> priv->rel_misc_dev_res = acpi_thermal_rel_misc_device_add(
> priv->adev->handle);
>
> @@ -518,6 +522,7 @@ static int int3400_thermal_probe(struct platform_device *pdev)
> free_rel_misc:
> if (!priv->rel_misc_dev_res)
> acpi_thermal_rel_misc_device_remove(priv->adev->handle);
> +free_tzd:
> thermal_zone_device_unregister(priv->thermal);
> free_art_trt:
> kfree(priv->trts);
[...]
> diff --git a/drivers/thermal/thermal_of.c b/drivers/thermal/thermal_of.c
> index 43a516a35d64..011fd7f0a01e 100644
> --- a/drivers/thermal/thermal_of.c
> +++ b/drivers/thermal/thermal_of.c
> @@ -1066,7 +1066,7 @@ int __init of_parse_thermal_zones(void)
> for_each_available_child_of_node(np, child) {
> struct thermal_zone_device *zone;
> struct thermal_zone_params *tzp;
> - int i, mask = 0;
> + int i, ret, mask = 0;
> u32 prop;
>
> tz = thermal_of_build_thermal_zone(child);
> @@ -1113,6 +1113,14 @@ int __init of_parse_thermal_zones(void)
> of_thermal_free_zone(tz);
> /* attempting to build remaining zones still */
> }
> + ret = thermal_zone_device_enable(zone);
This doesn't seem correct as it is done too early and
there is already proper thermal_zone_device_enable() call
in thermal_zone_of_sensor_register().
> + if (ret) {
> + thermal_zone_device_unregister(zone);
> + pr_err("Failed to enable thermal zone\n");
> + kfree(tzp);
> + kfree(ops);
> + of_thermal_free_zone(tz);
> + }
> }
> of_node_put(np);
>
Best regards,
--
Bartlomiej Zolnierkiewicz
Samsung R&D Institute Poland
Samsung Electronics
On 5/28/20 9:20 PM, Andrzej Pietrasiewicz wrote:
> Polling DISABLED devices is not desired, as all such "disabled" devices
> are meant to be handled by userspace. This patch introduces and uses
> should_stop_polling() to decide whether the device should be polled or not.
>
> Signed-off-by: Andrzej Pietrasiewicz <[email protected]>
Reviewed-by: Bartlomiej Zolnierkiewicz <[email protected]>
Best regards,
--
Bartlomiej Zolnierkiewicz
Samsung R&D Institute Poland
Samsung Electronics
> ---
> drivers/thermal/thermal_core.c | 16 ++++++++++++++--
> 1 file changed, 14 insertions(+), 2 deletions(-)
>
> diff --git a/drivers/thermal/thermal_core.c b/drivers/thermal/thermal_core.c
> index 14baf0288759..e9c0b990e4a9 100644
> --- a/drivers/thermal/thermal_core.c
> +++ b/drivers/thermal/thermal_core.c
> @@ -301,13 +301,22 @@ static void thermal_zone_device_set_polling(struct thermal_zone_device *tz,
> cancel_delayed_work(&tz->poll_queue);
> }
>
> +static inline bool should_stop_polling(struct thermal_zone_device *tz)
> +{
> + return !thermal_zone_device_is_enabled(tz);
> +}
> +
> static void monitor_thermal_zone(struct thermal_zone_device *tz)
> {
> + bool stop;
> +
> + stop = should_stop_polling(tz);
> +
> mutex_lock(&tz->lock);
>
> - if (tz->passive)
> + if (!stop && tz->passive)
> thermal_zone_device_set_polling(tz, tz->passive_delay);
> - else if (tz->polling_delay)
> + else if (!stop && tz->polling_delay)
> thermal_zone_device_set_polling(tz, tz->polling_delay);
> else
> thermal_zone_device_set_polling(tz, 0);
> @@ -517,6 +526,9 @@ void thermal_zone_device_update(struct thermal_zone_device *tz,
> {
> int count;
>
> + if (should_stop_polling(tz))
> + return;
> +
> if (atomic_read(&in_suspend))
> return;
>
>
On 5/28/20 9:20 PM, Andrzej Pietrasiewicz wrote:
> Setting polling_delay is now done at thermal_core level (by not polling
> DISABLED devices), so no need to repeat this code.
>
> int340x: Checking for an impossible enum value is unnecessary.
> acpi/thermal: It only prints debug messages.
>
> Signed-off-by: Andrzej Pietrasiewicz <[email protected]>
Reviewed-by: Bartlomiej Zolnierkiewicz <[email protected]>
Best regards,
--
Bartlomiej Zolnierkiewicz
Samsung R&D Institute Poland
Samsung Electronics
> ---
> drivers/acpi/thermal.c | 26 ----------------
> .../ethernet/mellanox/mlxsw/core_thermal.c | 30 -------------------
> drivers/platform/x86/acerhdf.c | 3 --
> drivers/thermal/imx_thermal.c | 6 ----
> .../intel/int340x_thermal/int3400_thermal.c | 4 ---
> drivers/thermal/thermal_of.c | 18 -----------
> 6 files changed, 87 deletions(-)
>
> diff --git a/drivers/acpi/thermal.c b/drivers/acpi/thermal.c
> index 52b6cda1bcc3..29a2b73fe035 100644
> --- a/drivers/acpi/thermal.c
> +++ b/drivers/acpi/thermal.c
> @@ -525,31 +525,6 @@ static int thermal_get_temp(struct thermal_zone_device *thermal, int *temp)
> return 0;
> }
>
> -static int thermal_set_mode(struct thermal_zone_device *thermal,
> - enum thermal_device_mode mode)
> -{
> - struct acpi_thermal *tz = thermal->devdata;
> -
> - if (!tz)
> - return -EINVAL;
> -
> - if (mode != THERMAL_DEVICE_DISABLED &&
> - mode != THERMAL_DEVICE_ENABLED)
> - return -EINVAL;
> - /*
> - * enable/disable thermal management from ACPI thermal driver
> - */
> - if (mode == THERMAL_DEVICE_DISABLED)
> - pr_warn("thermal zone will be disabled\n");
> -
> - ACPI_DEBUG_PRINT((ACPI_DB_INFO,
> - "%s kernel ACPI thermal control\n",
> - mode == THERMAL_DEVICE_ENABLED ?
> - "Enable" : "Disable"));
> -
> - return 0;
> -}
> -
> static int thermal_get_trip_type(struct thermal_zone_device *thermal,
> int trip, enum thermal_trip_type *type)
> {
> @@ -836,7 +811,6 @@ static struct thermal_zone_device_ops acpi_thermal_zone_ops = {
> .bind = acpi_thermal_bind_cooling_device,
> .unbind = acpi_thermal_unbind_cooling_device,
> .get_temp = thermal_get_temp,
> - .set_mode = thermal_set_mode,
> .get_trip_type = thermal_get_trip_type,
> .get_trip_temp = thermal_get_trip_temp,
> .get_crit_temp = thermal_get_crit_temp,
> diff --git a/drivers/net/ethernet/mellanox/mlxsw/core_thermal.c b/drivers/net/ethernet/mellanox/mlxsw/core_thermal.c
> index e1d800be8bb4..c7f334383912 100644
> --- a/drivers/net/ethernet/mellanox/mlxsw/core_thermal.c
> +++ b/drivers/net/ethernet/mellanox/mlxsw/core_thermal.c
> @@ -275,19 +275,6 @@ static int mlxsw_thermal_unbind(struct thermal_zone_device *tzdev,
> return 0;
> }
>
> -static int mlxsw_thermal_set_mode(struct thermal_zone_device *tzdev,
> - enum thermal_device_mode mode)
> -{
> - struct mlxsw_thermal *thermal = tzdev->devdata;
> -
> - if (mode == THERMAL_DEVICE_ENABLED)
> - tzdev->polling_delay = thermal->polling_delay;
> - else
> - tzdev->polling_delay = 0;
> -
> - return 0;
> -}
> -
> static int mlxsw_thermal_get_temp(struct thermal_zone_device *tzdev,
> int *p_temp)
> {
> @@ -388,7 +375,6 @@ static int mlxsw_thermal_trend_get(struct thermal_zone_device *tzdev,
> static struct thermal_zone_device_ops mlxsw_thermal_ops = {
> .bind = mlxsw_thermal_bind,
> .unbind = mlxsw_thermal_unbind,
> - .set_mode = mlxsw_thermal_set_mode,
> .get_temp = mlxsw_thermal_get_temp,
> .get_trip_type = mlxsw_thermal_get_trip_type,
> .get_trip_temp = mlxsw_thermal_get_trip_temp,
> @@ -446,20 +432,6 @@ static int mlxsw_thermal_module_unbind(struct thermal_zone_device *tzdev,
> return err;
> }
>
> -static int mlxsw_thermal_module_mode_set(struct thermal_zone_device *tzdev,
> - enum thermal_device_mode mode)
> -{
> - struct mlxsw_thermal_module *tz = tzdev->devdata;
> - struct mlxsw_thermal *thermal = tz->parent;
> -
> - if (mode == THERMAL_DEVICE_ENABLED)
> - tzdev->polling_delay = thermal->polling_delay;
> - else
> - tzdev->polling_delay = 0;
> -
> - return 0;
> -}
> -
> static int mlxsw_thermal_module_temp_get(struct thermal_zone_device *tzdev,
> int *p_temp)
> {
> @@ -559,7 +531,6 @@ mlxsw_thermal_module_trip_hyst_set(struct thermal_zone_device *tzdev, int trip,
> static struct thermal_zone_device_ops mlxsw_thermal_module_ops = {
> .bind = mlxsw_thermal_module_bind,
> .unbind = mlxsw_thermal_module_unbind,
> - .set_mode = mlxsw_thermal_module_mode_set,
> .get_temp = mlxsw_thermal_module_temp_get,
> .get_trip_type = mlxsw_thermal_module_trip_type_get,
> .get_trip_temp = mlxsw_thermal_module_trip_temp_get,
> @@ -597,7 +568,6 @@ static int mlxsw_thermal_gearbox_temp_get(struct thermal_zone_device *tzdev,
> static struct thermal_zone_device_ops mlxsw_thermal_gearbox_ops = {
> .bind = mlxsw_thermal_module_bind,
> .unbind = mlxsw_thermal_module_unbind,
> - .set_mode = mlxsw_thermal_module_mode_set,
> .get_temp = mlxsw_thermal_gearbox_temp_get,
> .get_trip_type = mlxsw_thermal_module_trip_type_get,
> .get_trip_temp = mlxsw_thermal_module_trip_temp_get,
> diff --git a/drivers/platform/x86/acerhdf.c b/drivers/platform/x86/acerhdf.c
> index 3efe749dc5a0..d33a70af0869 100644
> --- a/drivers/platform/x86/acerhdf.c
> +++ b/drivers/platform/x86/acerhdf.c
> @@ -397,8 +397,6 @@ static inline void acerhdf_revert_to_bios_mode(void)
> {
> acerhdf_change_fanstate(ACERHDF_FAN_AUTO);
> kernelmode = 0;
> - if (thz_dev)
> - thz_dev->polling_delay = 0;
>
> pr_notice("kernel mode fan control OFF\n");
> }
> @@ -406,7 +404,6 @@ static inline void acerhdf_enable_kernelmode(void)
> {
> kernelmode = 1;
>
> - thz_dev->polling_delay = interval*1000;
> pr_notice("kernel mode fan control ON\n");
> }
>
> diff --git a/drivers/thermal/imx_thermal.c b/drivers/thermal/imx_thermal.c
> index 53abb1be1cba..a02398118d88 100644
> --- a/drivers/thermal/imx_thermal.c
> +++ b/drivers/thermal/imx_thermal.c
> @@ -338,9 +338,6 @@ static int imx_set_mode(struct thermal_zone_device *tz,
> const struct thermal_soc_data *soc_data = data->socdata;
>
> if (mode == THERMAL_DEVICE_ENABLED) {
> - tz->polling_delay = IMX_POLLING_DELAY;
> - tz->passive_delay = IMX_PASSIVE_DELAY;
> -
> regmap_write(map, soc_data->sensor_ctrl + REG_CLR,
> soc_data->power_down_mask);
> regmap_write(map, soc_data->sensor_ctrl + REG_SET,
> @@ -356,9 +353,6 @@ static int imx_set_mode(struct thermal_zone_device *tz,
> regmap_write(map, soc_data->sensor_ctrl + REG_SET,
> soc_data->power_down_mask);
>
> - tz->polling_delay = 0;
> - tz->passive_delay = 0;
> -
> if (data->irq_enabled) {
> disable_irq(data->irq);
> data->irq_enabled = false;
> diff --git a/drivers/thermal/intel/int340x_thermal/int3400_thermal.c b/drivers/thermal/intel/int340x_thermal/int3400_thermal.c
> index 8e8c9af7e5f4..9af862ab9f65 100644
> --- a/drivers/thermal/intel/int340x_thermal/int3400_thermal.c
> +++ b/drivers/thermal/intel/int340x_thermal/int3400_thermal.c
> @@ -386,10 +386,6 @@ static int int3400_thermal_set_mode(struct thermal_zone_device *thermal,
> if (!priv)
> return -EINVAL;
>
> - if (mode != THERMAL_DEVICE_ENABLED &&
> - mode != THERMAL_DEVICE_DISABLED)
> - return -EINVAL;
> -
> if (mode != thermal->mode)
> result = int3400_thermal_run_osc(priv->adev->handle,
> priv->current_uuid_index,
> diff --git a/drivers/thermal/thermal_of.c b/drivers/thermal/thermal_of.c
> index 011fd7f0a01e..8a6272570347 100644
> --- a/drivers/thermal/thermal_of.c
> +++ b/drivers/thermal/thermal_of.c
> @@ -267,22 +267,6 @@ static int of_thermal_unbind(struct thermal_zone_device *thermal,
> return 0;
> }
>
> -static int of_thermal_set_mode(struct thermal_zone_device *tz,
> - enum thermal_device_mode mode)
> -{
> - struct __thermal_zone *data = tz->devdata;
> -
> - if (mode == THERMAL_DEVICE_ENABLED) {
> - tz->polling_delay = data->polling_delay;
> - tz->passive_delay = data->passive_delay;
> - } else {
> - tz->polling_delay = 0;
> - tz->passive_delay = 0;
> - }
> -
> - return 0;
> -}
> -
> static int of_thermal_get_trip_type(struct thermal_zone_device *tz, int trip,
> enum thermal_trip_type *type)
> {
> @@ -374,8 +358,6 @@ static int of_thermal_get_crit_temp(struct thermal_zone_device *tz,
> }
>
> static struct thermal_zone_device_ops of_thermal_ops = {
> - .set_mode = of_thermal_set_mode,
> -
> .get_trip_type = of_thermal_get_trip_type,
> .get_trip_temp = of_thermal_get_trip_temp,
> .set_trip_temp = of_thermal_set_trip_temp,
>
On 5/28/20 9:20 PM, Andrzej Pietrasiewicz wrote:
> set_mode() is only called when tzd's mode is about to change. Actual
> setting is performed in thermal_core, in thermal_zone_device_set_mode().
> The meaning of set_mode() callback is actually to notify the driver about
> the mode being changed and giving the driver a chance to oppose such
> change.
>
> To better reflect the purpose of the method rename it to change_mode()
>
> Signed-off-by: Andrzej Pietrasiewicz <[email protected]>
Reviewed-by: Bartlomiej Zolnierkiewicz <[email protected]>
Best regards,
--
Bartlomiej Zolnierkiewicz
Samsung R&D Institute Poland
Samsung Electronics
> ---
> drivers/platform/x86/acerhdf.c | 6 +++---
> drivers/thermal/imx_thermal.c | 8 ++++----
> drivers/thermal/intel/int340x_thermal/int3400_thermal.c | 6 +++---
> drivers/thermal/intel/intel_quark_dts_thermal.c | 6 +++---
> drivers/thermal/thermal_core.c | 4 ++--
> include/linux/thermal.h | 2 +-
> 6 files changed, 16 insertions(+), 16 deletions(-)
>
> diff --git a/drivers/platform/x86/acerhdf.c b/drivers/platform/x86/acerhdf.c
> index d33a70af0869..63b562e06d5c 100644
> --- a/drivers/platform/x86/acerhdf.c
> +++ b/drivers/platform/x86/acerhdf.c
> @@ -413,8 +413,8 @@ static inline void acerhdf_enable_kernelmode(void)
> * the temperature and the fan.
> * disabled: the BIOS takes control of the fan.
> */
> -static int acerhdf_set_mode(struct thermal_zone_device *thermal,
> - enum thermal_device_mode mode)
> +static int acerhdf_change_mode(struct thermal_zone_device *thermal,
> + enum thermal_device_mode mode)
> {
> if (mode == THERMAL_DEVICE_DISABLED && kernelmode)
> acerhdf_revert_to_bios_mode();
> @@ -473,7 +473,7 @@ static struct thermal_zone_device_ops acerhdf_dev_ops = {
> .bind = acerhdf_bind,
> .unbind = acerhdf_unbind,
> .get_temp = acerhdf_get_ec_temp,
> - .set_mode = acerhdf_set_mode,
> + .change_mode = acerhdf_change_mode,
> .get_trip_type = acerhdf_get_trip_type,
> .get_trip_hyst = acerhdf_get_trip_hyst,
> .get_trip_temp = acerhdf_get_trip_temp,
> diff --git a/drivers/thermal/imx_thermal.c b/drivers/thermal/imx_thermal.c
> index a02398118d88..9700ae39feb7 100644
> --- a/drivers/thermal/imx_thermal.c
> +++ b/drivers/thermal/imx_thermal.c
> @@ -330,8 +330,8 @@ static int imx_get_temp(struct thermal_zone_device *tz, int *temp)
> return 0;
> }
>
> -static int imx_set_mode(struct thermal_zone_device *tz,
> - enum thermal_device_mode mode)
> +static int imx_change_mode(struct thermal_zone_device *tz,
> + enum thermal_device_mode mode)
> {
> struct imx_thermal_data *data = tz->devdata;
> struct regmap *map = data->tempmon;
> @@ -447,7 +447,7 @@ static struct thermal_zone_device_ops imx_tz_ops = {
> .bind = imx_bind,
> .unbind = imx_unbind,
> .get_temp = imx_get_temp,
> - .set_mode = imx_set_mode,
> + .change_mode = imx_change_mode,
> .get_trip_type = imx_get_trip_type,
> .get_trip_temp = imx_get_trip_temp,
> .get_crit_temp = imx_get_crit_temp,
> @@ -860,7 +860,7 @@ static int __maybe_unused imx_thermal_suspend(struct device *dev)
> * Need to disable thermal sensor, otherwise, when thermal core
> * try to get temperature before thermal sensor resume, a wrong
> * temperature will be read as the thermal sensor is powered
> - * down. This is done in set_mode() operation called from
> + * down. This is done in change_mode() operation called from
> * thermal_zone_device_disable()
> */
> ret = thermal_zone_device_disable(data->tz);
> diff --git a/drivers/thermal/intel/int340x_thermal/int3400_thermal.c b/drivers/thermal/intel/int340x_thermal/int3400_thermal.c
> index 9af862ab9f65..58870d215471 100644
> --- a/drivers/thermal/intel/int340x_thermal/int3400_thermal.c
> +++ b/drivers/thermal/intel/int340x_thermal/int3400_thermal.c
> @@ -377,8 +377,8 @@ static int int3400_thermal_get_temp(struct thermal_zone_device *thermal,
> return 0;
> }
>
> -static int int3400_thermal_set_mode(struct thermal_zone_device *thermal,
> - enum thermal_device_mode mode)
> +static int int3400_thermal_change_mode(struct thermal_zone_device *thermal,
> + enum thermal_device_mode mode)
> {
> struct int3400_thermal_priv *priv = thermal->devdata;
> int result = 0;
> @@ -399,7 +399,7 @@ static int int3400_thermal_set_mode(struct thermal_zone_device *thermal,
>
> static struct thermal_zone_device_ops int3400_thermal_ops = {
> .get_temp = int3400_thermal_get_temp,
> - .set_mode = int3400_thermal_set_mode,
> + .change_mode = int3400_thermal_change_mode,
> };
>
> static struct thermal_zone_params int3400_thermal_params = {
> diff --git a/drivers/thermal/intel/intel_quark_dts_thermal.c b/drivers/thermal/intel/intel_quark_dts_thermal.c
> index e29c3e330b17..3eafc6b0e6c3 100644
> --- a/drivers/thermal/intel/intel_quark_dts_thermal.c
> +++ b/drivers/thermal/intel/intel_quark_dts_thermal.c
> @@ -298,8 +298,8 @@ static int sys_get_curr_temp(struct thermal_zone_device *tzd,
> return 0;
> }
>
> -static int sys_set_mode(struct thermal_zone_device *tzd,
> - enum thermal_device_mode mode)
> +static int sys_change_mode(struct thermal_zone_device *tzd,
> + enum thermal_device_mode mode)
> {
> int ret;
>
> @@ -319,7 +319,7 @@ static struct thermal_zone_device_ops tzone_ops = {
> .get_trip_type = sys_get_trip_type,
> .set_trip_temp = sys_set_trip_temp,
> .get_crit_temp = sys_get_crit_temp,
> - .set_mode = sys_set_mode,
> + .change_mode = sys_change_mode,
> };
>
> static void free_soc_dts(struct soc_sensor_entry *aux_entry)
> diff --git a/drivers/thermal/thermal_core.c b/drivers/thermal/thermal_core.c
> index e9c0b990e4a9..c00edae7839e 100644
> --- a/drivers/thermal/thermal_core.c
> +++ b/drivers/thermal/thermal_core.c
> @@ -482,8 +482,8 @@ int thermal_zone_device_set_mode(struct thermal_zone_device *tz,
> return ret;
> }
>
> - if (tz->ops->set_mode)
> - ret = tz->ops->set_mode(tz, mode);
> + if (tz->ops->change_mode)
> + ret = tz->ops->change_mode(tz, mode);
>
> if (!ret)
> tz->mode = mode;
> diff --git a/include/linux/thermal.h b/include/linux/thermal.h
> index df013c39ba9b..b9efaa780d88 100644
> --- a/include/linux/thermal.h
> +++ b/include/linux/thermal.h
> @@ -76,7 +76,7 @@ struct thermal_zone_device_ops {
> struct thermal_cooling_device *);
> int (*get_temp) (struct thermal_zone_device *, int *);
> int (*set_trips) (struct thermal_zone_device *, int, int);
> - int (*set_mode) (struct thermal_zone_device *,
> + int (*change_mode) (struct thermal_zone_device *,
> enum thermal_device_mode);
> int (*get_trip_type) (struct thermal_zone_device *, int,
> enum thermal_trip_type *);
>
Hi Bartlomiej,
W dniu 24.06.2020 o 11:51, Bartlomiej Zolnierkiewicz pisze:
>
> On 5/28/20 9:20 PM, Andrzej Pietrasiewicz wrote:
>> Use thermal_zone_device_{en|dis}able() and thermal_zone_device_is_enabled().
>>
>> Consequently, all set_mode() implementations in drivers:
>>
>> - can stop modifying tzd's "mode" member,
>> - shall stop taking tzd's lock, as it is taken in the helpers
>> - shall stop calling thermal_zone_device_update() as it is called in the
>> helpers
>> - can assume they are called when the mode truly changes, so checks to
>> verify that can be dropped
>>
>> Not providing set_mode() by a driver no longer prevents the core from
>> being able to set tzd's mode, so the relevant check in mode_store() is
>> removed.
>>
>> Other comments:
>>
>> - acpi/thermal.c: tz->thermal_zone->mode will be updated only after we
>> return from set_mode(), so use function parameter in thermal_set_mode()
>> instead, no need to call acpi_thermal_check() in set_mode()
>> - thermal/imx_thermal.c: regmap writes and mode assignment are done in
>> thermal_zone_device_{en|dis}able() and set_mode() callback
>> - thermal/intel/intel_quark_dts_thermal.c: soc_dts_{en|dis}able() are a
>> part of set_mode() callback, so they don't need to modify tzd->mode, and
>> don't need to fall back to the opposite mode if unsuccessful, as the return
>> value will be propagated to thermal_zone_device_{en|dis}able() and
>> ultimately tzd's member will not be changed in thermal_zone_device_set_mode().
>> - thermal/of-thermal.c: no need to set zone->mode to DISABLED in
>> of_parse_thermal_zones() as a tzd is kzalloc'ed so mode is DISABLED anyway
>>
>> Signed-off-by: Andrzej Pietrasiewicz <[email protected]>
>> ---
>> drivers/acpi/thermal.c | 21 ++++++-----
>> .../ethernet/mellanox/mlxsw/core_thermal.c | 37 +++++++++----------
>> drivers/platform/x86/acerhdf.c | 17 +++++----
>> drivers/thermal/da9062-thermal.c | 6 ++-
>> drivers/thermal/hisi_thermal.c | 6 ++-
>> drivers/thermal/imx_thermal.c | 33 +++++++----------
>> .../intel/int340x_thermal/int3400_thermal.c | 5 +--
>> .../thermal/intel/intel_quark_dts_thermal.c | 18 ++-------
>> drivers/thermal/rockchip_thermal.c | 6 ++-
>> drivers/thermal/sprd_thermal.c | 6 ++-
>> drivers/thermal/thermal_core.c | 2 +-
>> drivers/thermal/thermal_of.c | 10 +----
>> drivers/thermal/thermal_sysfs.c | 11 ++----
>> 13 files changed, 80 insertions(+), 98 deletions(-)
>
> [...]
>
>> diff --git a/drivers/platform/x86/acerhdf.c b/drivers/platform/x86/acerhdf.c
>> index 32c5fe16b7f7..3efe749dc5a0 100644
>> --- a/drivers/platform/x86/acerhdf.c
>> +++ b/drivers/platform/x86/acerhdf.c
>> @@ -397,19 +397,16 @@ static inline void acerhdf_revert_to_bios_mode(void)
>> {
>> acerhdf_change_fanstate(ACERHDF_FAN_AUTO);
>> kernelmode = 0;
>> - if (thz_dev) {
>> - thz_dev->mode = THERMAL_DEVICE_DISABLED;
>> + if (thz_dev)
>> thz_dev->polling_delay = 0;
>> - }
>> +
>> pr_notice("kernel mode fan control OFF\n");
>> }
>> static inline void acerhdf_enable_kernelmode(void)
>> {
>> kernelmode = 1;
>> - thz_dev->mode = THERMAL_DEVICE_ENABLED;
>>
>> thz_dev->polling_delay = interval*1000;
>> - thermal_zone_device_update(thz_dev, THERMAL_EVENT_UNSPECIFIED);
>> pr_notice("kernel mode fan control ON\n");
>> }
>>
>> @@ -723,6 +720,8 @@ static void acerhdf_unregister_platform(void)
>>
>> static int __init acerhdf_register_thermal(void)
>> {
>> + int ret;
>> +
>> cl_dev = thermal_cooling_device_register("acerhdf-fan", NULL,
>> &acerhdf_cooling_ops);
>>
>> @@ -736,8 +735,12 @@ static int __init acerhdf_register_thermal(void)
>> if (IS_ERR(thz_dev))
>> return -EINVAL;
>>
>> - thz_dev->mode = kernelmode ?
>> - THERMAL_DEVICE_ENABLED : THERMAL_DEVICE_DISABLED;
>> + if (kernelmode)
>> + ret = thermal_zone_device_enable(thz_dev);
>> + else
>> + ret = thermal_zone_device_disable(thz_dev);
>> + if (ret)
>
> Cleanup on error seems to be missing here.
It does seem so, but it is not the case.
acerhdf_register_thermal() is called from acerhdf_init().
The latter checks the return value of the former and on error
jumps to the err_unreg label, where thermal zone(s) is/are unregistered.
Regards,
Andrzej
A respin of v4 with these changes:
v4..v5:
- EXPORT_SYMBOL -> EXPORT_SYMBOL_GPL (Daniel)
- dropped unnecessary thermal_zone_device_enable() in int3400_thermal.c
and in thermal_of.c (Bartlomiej)
Andrzej Pietrasiewicz (11):
acpi: thermal: Fix error handling in the register function
thermal: Store thermal mode in a dedicated enum
thermal: Add current mode to thermal zone device
thermal: Store device mode in struct thermal_zone_device
thermal: remove get_mode() operation of drivers
thermal: Add mode helpers
thermal: Use mode helpers in drivers
thermal: Explicitly enable non-changing thermal zone devices
thermal: core: Stop polling DISABLED thermal devices
thermal: Simplify or eliminate unnecessary set_mode() methods
thermal: Rename set_mode() to change_mode()
drivers/acpi/thermal.c | 75 +++++----------
.../ethernet/chelsio/cxgb4/cxgb4_thermal.c | 8 ++
.../ethernet/mellanox/mlxsw/core_thermal.c | 91 ++++---------------
drivers/net/wireless/intel/iwlwifi/mvm/tt.c | 9 +-
drivers/platform/x86/acerhdf.c | 33 +++----
drivers/platform/x86/intel_mid_thermal.c | 6 ++
drivers/power/supply/power_supply_core.c | 9 +-
drivers/thermal/armada_thermal.c | 6 ++
drivers/thermal/da9062-thermal.c | 16 +---
drivers/thermal/dove_thermal.c | 6 ++
drivers/thermal/hisi_thermal.c | 6 +-
drivers/thermal/imx_thermal.c | 57 ++++--------
.../intel/int340x_thermal/int3400_thermal.c | 38 ++------
.../int340x_thermal/int340x_thermal_zone.c | 5 +
drivers/thermal/intel/intel_pch_thermal.c | 5 +
.../thermal/intel/intel_quark_dts_thermal.c | 34 ++-----
drivers/thermal/intel/intel_soc_dts_iosf.c | 3 +
drivers/thermal/intel/x86_pkg_temp_thermal.c | 6 ++
drivers/thermal/kirkwood_thermal.c | 7 ++
drivers/thermal/rcar_thermal.c | 9 +-
drivers/thermal/rockchip_thermal.c | 6 +-
drivers/thermal/spear_thermal.c | 7 ++
drivers/thermal/sprd_thermal.c | 6 +-
drivers/thermal/st/st_thermal.c | 5 +
drivers/thermal/thermal_core.c | 76 ++++++++++++++--
drivers/thermal/thermal_of.c | 41 +--------
drivers/thermal/thermal_sysfs.c | 37 +-------
include/linux/thermal.h | 19 +++-
28 files changed, 275 insertions(+), 351 deletions(-)
base-commit: 48778464bb7d346b47157d21ffde2af6b2d39110
--
2.17.1