SmartReflex driver interface is natively divided to two parts:
- external SmartReflex interface
- interface between SmartReflex driver and SmartReflex Class
Functions which belong to AVS class interface can use
struct omap_sr* instead of struct voltatedomain*, to provide a
direct connection between SR driver and SR class. This allows
us to optimize and not do additional lookups where none is
required.
Patches are based on:
git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
tag: v3.10-rc2
Verified on OMAP4430. Boot - OK. SmartReflex registers debug dump - OK
Available on GitHub:
https://github.com/andriit/linux-omap-k3.8/commits/avs_sr_driver_std_class_interfaces_v01
Andrii Tseglytskyi (3):
PM / AVS: SmartReflex: use omap_sr * for errgen interfaces
PM / AVS: SmartReflex: use omap_sr * for minmax interfaces
PM / AVS: SmartReflex: use omap_sr * for enable/disable interface
arch/arm/mach-omap2/smartreflex-class3.c | 8 ++--
drivers/power/avs/smartreflex.c | 63 +++++++++++++++---------------
include/linux/power/smartreflex.h | 10 ++---
3 files changed, 40 insertions(+), 41 deletions(-)
--
1.7.9.5
SmartReflex driver interface is natively divided to two parts:
- external SmartReflex interface
- interface between SmartReflex driver and SmartReflex Class
Functions which belong to AVS class interface can use
struct omap_sr* instead of struct voltatedomain*, to provide a
direct connection between SR driver and SR class. This allows
us to optimize and not do additional lookups where none is
required.
sr_configure_minmax() is interface function between SR driver
and SR class. It is typically used by Class driver to
configure MINMAXAVG module inside SmartReflex module.
Now it takes struct omap_sr* as input parameter.
Signed-off-by: Andrii Tseglytskyi <[email protected]>
Acked-by: Nishanth Menon <[email protected]>
---
drivers/power/avs/smartreflex.c | 14 +++++++-------
include/linux/power/smartreflex.h | 2 +-
2 files changed, 8 insertions(+), 8 deletions(-)
diff --git a/drivers/power/avs/smartreflex.c b/drivers/power/avs/smartreflex.c
index 155a050..ef92716 100644
--- a/drivers/power/avs/smartreflex.c
+++ b/drivers/power/avs/smartreflex.c
@@ -459,9 +459,9 @@ int sr_disable_errgen(struct omap_sr *sr)
}
/**
- * sr_configure_minmax() - Configures the smrtreflex to perform AVS using the
+ * sr_configure_minmax() - Configures the SmartReflex to perform AVS using the
* minmaxavg module.
- * @voltdm: VDD pointer to which the SR module to be configured belongs to.
+ * @sr: SR module to be configured.
*
* This API is to be called from the smartreflex class driver to
* configure the minmaxavg module inside the smartreflex module.
@@ -470,16 +470,16 @@ int sr_disable_errgen(struct omap_sr *sr)
* SR CLASS 2 can choose between ERROR module and MINMAXAVG
* module. Returns 0 on success and error value in case of failure.
*/
-int sr_configure_minmax(struct voltagedomain *voltdm)
+int sr_configure_minmax(struct omap_sr *sr)
{
u32 sr_config, sr_avgwt;
u32 senp_en = 0, senn_en = 0;
u8 senp_shift, senn_shift;
- struct omap_sr *sr = _sr_lookup(voltdm);
- if (IS_ERR(sr)) {
- pr_warning("%s: omap_sr struct for voltdm not found\n", __func__);
- return PTR_ERR(sr);
+ if (!sr) {
+ pr_warn("%s: NULL omap_sr from %pF\n", __func__,
+ (void *)_RET_IP_);
+ return -EINVAL;
}
if (!sr->clk_length)
diff --git a/include/linux/power/smartreflex.h b/include/linux/power/smartreflex.h
index 9c3b9ad..648be77 100644
--- a/include/linux/power/smartreflex.h
+++ b/include/linux/power/smartreflex.h
@@ -303,7 +303,7 @@ int sr_enable(struct voltagedomain *voltdm, unsigned long volt);
void sr_disable(struct voltagedomain *voltdm);
int sr_configure_errgen(struct omap_sr *sr);
int sr_disable_errgen(struct omap_sr *sr);
-int sr_configure_minmax(struct voltagedomain *voltdm);
+int sr_configure_minmax(struct omap_sr *sr);
/* API to register the smartreflex class driver with the smartreflex driver */
int sr_register_class(struct omap_sr_class_data *class_data);
--
1.7.9.5
SmartReflex driver interface is natively divided to two parts:
- external SmartReflex interface
- interface between SmartReflex driver and SmartReflex Class
Functions which belong to AVS class interface can use
struct omap_sr* instead of struct voltatedomain*, to provide a
direct connection between SR driver and SR class. This allows
us to optimize and not do additional lookups where none is
required.
sr_enable() and sr_disable() are interface functions between
SR driver and SR class. They are typically used by Class driver
to enable/disable SmartReflex hardware module.
Now they take struct omap_sr* as input parameter.
Signed-off-by: Andrii Tseglytskyi <[email protected]>
Acked-by: Nishanth Menon <[email protected]>
---
arch/arm/mach-omap2/smartreflex-class3.c | 4 ++--
drivers/power/avs/smartreflex.c | 23 +++++++++++------------
include/linux/power/smartreflex.h | 4 ++--
3 files changed, 15 insertions(+), 16 deletions(-)
diff --git a/arch/arm/mach-omap2/smartreflex-class3.c b/arch/arm/mach-omap2/smartreflex-class3.c
index 6c26dc1..7a42e19 100644
--- a/arch/arm/mach-omap2/smartreflex-class3.c
+++ b/arch/arm/mach-omap2/smartreflex-class3.c
@@ -26,14 +26,14 @@ static int sr_class3_enable(struct omap_sr *sr)
}
omap_vp_enable(sr->voltdm);
- return sr_enable(sr->voltdm, volt);
+ return sr_enable(sr, volt);
}
static int sr_class3_disable(struct omap_sr *sr, int is_volt_reset)
{
sr_disable_errgen(sr);
omap_vp_disable(sr->voltdm);
- sr_disable(sr->voltdm);
+ sr_disable(sr);
if (is_volt_reset)
voltdm_reset(sr->voltdm);
diff --git a/drivers/power/avs/smartreflex.c b/drivers/power/avs/smartreflex.c
index ef92716..af4e70b 100644
--- a/drivers/power/avs/smartreflex.c
+++ b/drivers/power/avs/smartreflex.c
@@ -546,7 +546,7 @@ int sr_configure_minmax(struct omap_sr *sr)
/**
* sr_enable() - Enables the smartreflex module.
- * @voltdm: VDD pointer to which the SR module to be configured belongs to.
+ * @sr: pointer to which the SR module to be configured belongs to.
* @volt: The voltage at which the Voltage domain associated with
* the smartreflex module is operating at.
* This is required only to program the correct Ntarget value.
@@ -555,16 +555,16 @@ int sr_configure_minmax(struct omap_sr *sr)
* enable a smartreflex module. Returns 0 on success. Returns error
* value if the voltage passed is wrong or if ntarget value is wrong.
*/
-int sr_enable(struct voltagedomain *voltdm, unsigned long volt)
+int sr_enable(struct omap_sr *sr, unsigned long volt)
{
struct omap_volt_data *volt_data;
- struct omap_sr *sr = _sr_lookup(voltdm);
struct omap_sr_nvalue_table *nvalue_row;
int ret;
- if (IS_ERR(sr)) {
- pr_warning("%s: omap_sr struct for voltdm not found\n", __func__);
- return PTR_ERR(sr);
+ if (!sr) {
+ pr_warn("%s: NULL omap_sr from %pF\n", __func__,
+ (void *)_RET_IP_);
+ return -EINVAL;
}
volt_data = omap_voltage_get_voltdata(sr->voltdm, volt);
@@ -606,17 +606,16 @@ int sr_enable(struct voltagedomain *voltdm, unsigned long volt)
/**
* sr_disable() - Disables the smartreflex module.
- * @voltdm: VDD pointer to which the SR module to be configured belongs to.
+ * @sr: pointer to which the SR module to be configured belongs to.
*
* This API is to be called from the smartreflex class driver to
* disable a smartreflex module.
*/
-void sr_disable(struct voltagedomain *voltdm)
+void sr_disable(struct omap_sr *sr)
{
- struct omap_sr *sr = _sr_lookup(voltdm);
-
- if (IS_ERR(sr)) {
- pr_warning("%s: omap_sr struct for voltdm not found\n", __func__);
+ if (!sr) {
+ pr_warn("%s: NULL omap_sr from %pF\n", __func__,
+ (void *)_RET_IP_);
return;
}
diff --git a/include/linux/power/smartreflex.h b/include/linux/power/smartreflex.h
index 648be77..d8b187c3 100644
--- a/include/linux/power/smartreflex.h
+++ b/include/linux/power/smartreflex.h
@@ -299,8 +299,8 @@ void omap_sr_disable_reset_volt(struct voltagedomain *voltdm);
void omap_sr_register_pmic(struct omap_sr_pmic_data *pmic_data);
/* Smartreflex driver hooks to be called from Smartreflex class driver */
-int sr_enable(struct voltagedomain *voltdm, unsigned long volt);
-void sr_disable(struct voltagedomain *voltdm);
+int sr_enable(struct omap_sr *sr, unsigned long volt);
+void sr_disable(struct omap_sr *sr);
int sr_configure_errgen(struct omap_sr *sr);
int sr_disable_errgen(struct omap_sr *sr);
int sr_configure_minmax(struct omap_sr *sr);
--
1.7.9.5
SmartReflex driver interface is natively divided to two parts:
- external SmartReflex interface
- interface between SmartReflex driver and SmartReflex Class
Functions which belong to AVS class interface can use
struct omap_sr* instead of struct voltatedomain*, to provide a
direct connection between SR driver and SR class. This allows
us to optimize and not do additional lookups where none is
required.
sr_disable_errgen() and sr_configure_errgen() are interface
functions between SR driver and SR class. They are typically
used by Class driver to configure error generator module during
SmartReflex enable/disable sequence.
Now they take struct omap_sr* as input parameter.
Signed-off-by: Andrii Tseglytskyi <[email protected]>
Acked-by: Nishanth Menon <[email protected]>
---
arch/arm/mach-omap2/smartreflex-class3.c | 4 ++--
drivers/power/avs/smartreflex.c | 26 +++++++++++++-------------
include/linux/power/smartreflex.h | 4 ++--
3 files changed, 17 insertions(+), 17 deletions(-)
diff --git a/arch/arm/mach-omap2/smartreflex-class3.c b/arch/arm/mach-omap2/smartreflex-class3.c
index aee3c89..6c26dc1 100644
--- a/arch/arm/mach-omap2/smartreflex-class3.c
+++ b/arch/arm/mach-omap2/smartreflex-class3.c
@@ -31,7 +31,7 @@ static int sr_class3_enable(struct omap_sr *sr)
static int sr_class3_disable(struct omap_sr *sr, int is_volt_reset)
{
- sr_disable_errgen(sr->voltdm);
+ sr_disable_errgen(sr);
omap_vp_disable(sr->voltdm);
sr_disable(sr->voltdm);
if (is_volt_reset)
@@ -42,7 +42,7 @@ static int sr_class3_disable(struct omap_sr *sr, int is_volt_reset)
static int sr_class3_configure(struct omap_sr *sr)
{
- return sr_configure_errgen(sr->voltdm);
+ return sr_configure_errgen(sr);
}
/* SR class3 structure */
diff --git a/drivers/power/avs/smartreflex.c b/drivers/power/avs/smartreflex.c
index 6b2238b..155a050 100644
--- a/drivers/power/avs/smartreflex.c
+++ b/drivers/power/avs/smartreflex.c
@@ -341,9 +341,9 @@ static struct omap_sr_nvalue_table *sr_retrieve_nvalue_row(
/* Public Functions */
/**
- * sr_configure_errgen() - Configures the smrtreflex to perform AVS using the
+ * sr_configure_errgen() - Configures the SmartReflex to perform AVS using the
* error generator module.
- * @voltdm: VDD pointer to which the SR module to be configured belongs to.
+ * @sr: SR module to be configured.
*
* This API is to be called from the smartreflex class driver to
* configure the error generator module inside the smartreflex module.
@@ -352,17 +352,17 @@ static struct omap_sr_nvalue_table *sr_retrieve_nvalue_row(
* SR CLASS 2 can choose between ERROR module and MINMAXAVG
* module. Returns 0 on success and error value in case of failure.
*/
-int sr_configure_errgen(struct voltagedomain *voltdm)
+int sr_configure_errgen(struct omap_sr *sr)
{
u32 sr_config, sr_errconfig, errconfig_offs;
u32 vpboundint_en, vpboundint_st;
u32 senp_en = 0, senn_en = 0;
u8 senp_shift, senn_shift;
- struct omap_sr *sr = _sr_lookup(voltdm);
- if (IS_ERR(sr)) {
- pr_warning("%s: omap_sr struct for voltdm not found\n", __func__);
- return PTR_ERR(sr);
+ if (!sr) {
+ pr_warn("%s: NULL omap_sr from %pF\n", __func__,
+ (void *)_RET_IP_);
+ return -EINVAL;
}
if (!sr->clk_length)
@@ -414,22 +414,22 @@ int sr_configure_errgen(struct voltagedomain *voltdm)
/**
* sr_disable_errgen() - Disables SmartReflex AVS module's errgen component
- * @voltdm: VDD pointer to which the SR module to be configured belongs to.
+ * @sr: SR module to be configured.
*
* This API is to be called from the smartreflex class driver to
* disable the error generator module inside the smartreflex module.
*
* Returns 0 on success and error value in case of failure.
*/
-int sr_disable_errgen(struct voltagedomain *voltdm)
+int sr_disable_errgen(struct omap_sr *sr)
{
u32 errconfig_offs;
u32 vpboundint_en, vpboundint_st;
- struct omap_sr *sr = _sr_lookup(voltdm);
- if (IS_ERR(sr)) {
- pr_warning("%s: omap_sr struct for voltdm not found\n", __func__);
- return PTR_ERR(sr);
+ if (!sr) {
+ pr_warn("%s: NULL omap_sr from %pF\n", __func__,
+ (void *)_RET_IP_);
+ return -EINVAL;
}
switch (sr->ip_type) {
diff --git a/include/linux/power/smartreflex.h b/include/linux/power/smartreflex.h
index c0f44c2..9c3b9ad 100644
--- a/include/linux/power/smartreflex.h
+++ b/include/linux/power/smartreflex.h
@@ -301,8 +301,8 @@ void omap_sr_register_pmic(struct omap_sr_pmic_data *pmic_data);
/* Smartreflex driver hooks to be called from Smartreflex class driver */
int sr_enable(struct voltagedomain *voltdm, unsigned long volt);
void sr_disable(struct voltagedomain *voltdm);
-int sr_configure_errgen(struct voltagedomain *voltdm);
-int sr_disable_errgen(struct voltagedomain *voltdm);
+int sr_configure_errgen(struct omap_sr *sr);
+int sr_disable_errgen(struct omap_sr *sr);
int sr_configure_minmax(struct voltagedomain *voltdm);
/* API to register the smartreflex class driver with the smartreflex driver */
--
1.7.9.5
Andrii Tseglytskyi <[email protected]> writes:
> SmartReflex driver interface is natively divided to two parts:
>
> - external SmartReflex interface
> - interface between SmartReflex driver and SmartReflex Class
>
> Functions which belong to AVS class interface can use
> struct omap_sr* instead of struct voltatedomain*, to provide a
> direct connection between SR driver and SR class. This allows
> us to optimize and not do additional lookups where none is
> required.
>
> Patches are based on:
> git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
> tag: v3.10-rc2
>
> Verified on OMAP4430. Boot - OK. SmartReflex registers debug dump - OK
>
> Available on GitHub:
> https://github.com/andriit/linux-omap-k3.8/commits/avs_sr_driver_std_class_interfaces_v01
>
> Andrii Tseglytskyi (3):
> PM / AVS: SmartReflex: use omap_sr * for errgen interfaces
> PM / AVS: SmartReflex: use omap_sr * for minmax interfaces
> PM / AVS: SmartReflex: use omap_sr * for enable/disable interface
>
> arch/arm/mach-omap2/smartreflex-class3.c | 8 ++--
> drivers/power/avs/smartreflex.c | 63 +++++++++++++++---------------
> include/linux/power/smartreflex.h | 10 ++---
> 3 files changed, 40 insertions(+), 41 deletions(-)
Thanks, queuing this series for v3.11.
Kevin