2023-05-12 00:33:11

by Dmitry Torokhov

[permalink] [raw]
Subject: [PATCH 0/4] x86-android-tablets: convert to using GPIO references

Hi Hans,

This series came about because now software nodes can be used to
describe GPIOs (via PROPERTY_ENTRY_GPIO() macros) and I would like to
eventually get rid of gpio_keys_platform_data structure.

So while I was doing the conversions from GPIO_LOOKUP() tables for
gpio_keys devices I decided to convert the rest of them as well. Maybe
some time in the future we can drop support for GPIO_LOOKUP() and rely
on device properties exclusively.

This is completely untested.

Thanks.

Dmitry Torokhov (4):
platform/x86: x86-android-tablets: convert Goodix devices to GPIO references
platform/x86: x86-android-tablets: convert int3496 devices to GPIO references
platform/x86: x86-android-tablets: convert wm1502 devices to GPIO references
platform/x86: x86-android-tablets: convert gpio_keys devices to GPIO references

drivers/platform/x86/x86-android-tablets.c | 355 ++++++++++++---------
1 file changed, 201 insertions(+), 154 deletions(-)

--
Dmitry



2023-05-12 00:33:11

by Dmitry Torokhov

[permalink] [raw]
Subject: [PATCH 2/4] platform/x86: x86-android-tablets: convert int3496 devices to GPIO references

Now that gpiolib supports software nodes to describe GPIOs, switch the
driver away from using GPIO lookup tables for int3496 devices to using
PROPERTY_ENTRY_GPIO().

Signed-off-by: Dmitry Torokhov <[email protected]>
---
drivers/platform/x86/x86-android-tablets.c | 89 +++++++++-------------
1 file changed, 38 insertions(+), 51 deletions(-)

diff --git a/drivers/platform/x86/x86-android-tablets.c b/drivers/platform/x86/x86-android-tablets.c
index e187fb66b6d7..f7f80237cfa9 100644
--- a/drivers/platform/x86/x86-android-tablets.c
+++ b/drivers/platform/x86/x86-android-tablets.c
@@ -263,23 +263,6 @@ static const char * const bq24190_modules[] __initconst = {
NULL
};

-/* Generic pdevs array and gpio-lookups for micro USB ID pin handling */
-static const struct platform_device_info int3496_pdevs[] __initconst = {
- {
- /* For micro USB ID pin handling */
- .name = "intel-int3496",
- .id = PLATFORM_DEVID_NONE,
- },
-};
-
-static struct gpiod_lookup_table int3496_gpo2_pin22_gpios = {
- .dev_id = "intel-int3496",
- .table = {
- GPIO_LOOKUP("INT33FC:02", 22, "id", GPIO_ACTIVE_HIGH),
- { }
- },
-};
-
/*
* Advantech MICA-071
* This is a standard Windows tablet, but it has an extra "quick launch" button
@@ -347,6 +330,12 @@ static const struct gpio_keys_platform_data asus_me176c_tf103c_lid_pdata __initc
.name = "lid_sw",
};

+static const struct property_entry asus_me176c_tf103c_int3496_props[] = {
+ PROPERTY_ENTRY_GPIO("id-gpios",
+ &int33fc_gpiochip_nodes[2], 22, GPIO_ACTIVE_HIGH),
+ { }
+};
+
static const struct platform_device_info asus_me176c_tf103c_pdevs[] __initconst = {
{
.name = "gpio-keys",
@@ -358,6 +347,7 @@ static const struct platform_device_info asus_me176c_tf103c_pdevs[] __initconst
/* For micro USB ID pin handling */
.name = "intel-int3496",
.id = PLATFORM_DEVID_NONE,
+ .properties = asus_me176c_tf103c_int3496_props,
},
};

@@ -503,11 +493,6 @@ static const struct x86_serdev_info asus_me176c_serdevs[] __initconst = {
},
};

-static struct gpiod_lookup_table * const asus_me176c_gpios[] = {
- &int3496_gpo2_pin22_gpios,
- NULL
-};
-
static const struct x86_dev_info asus_me176c_info __initconst = {
.i2c_client_info = asus_me176c_i2c_clients,
.i2c_client_count = ARRAY_SIZE(asus_me176c_i2c_clients),
@@ -515,7 +500,6 @@ static const struct x86_dev_info asus_me176c_info __initconst = {
.pdev_count = ARRAY_SIZE(asus_me176c_tf103c_pdevs),
.serdev_info = asus_me176c_serdevs,
.serdev_count = ARRAY_SIZE(asus_me176c_serdevs),
- .gpiod_lookup_tables = asus_me176c_gpios,
.bat_swnode = &generic_lipo_hv_4v35_battery_node,
.modules = bq24190_modules,
.invalid_aei_gpiochip = "INT33FC:02",
@@ -648,17 +632,11 @@ static const struct x86_i2c_client_info asus_tf103c_i2c_clients[] __initconst =
},
};

-static struct gpiod_lookup_table * const asus_tf103c_gpios[] = {
- &int3496_gpo2_pin22_gpios,
- NULL
-};
-
static const struct x86_dev_info asus_tf103c_info __initconst = {
.i2c_client_info = asus_tf103c_i2c_clients,
.i2c_client_count = ARRAY_SIZE(asus_tf103c_i2c_clients),
.pdev_info = asus_me176c_tf103c_pdevs,
.pdev_count = ARRAY_SIZE(asus_me176c_tf103c_pdevs),
- .gpiod_lookup_tables = asus_tf103c_gpios,
.bat_swnode = &asus_tf103c_battery_node,
.modules = bq24190_modules,
.invalid_aei_gpiochip = "INT33FC:02",
@@ -877,12 +855,20 @@ static const struct x86_i2c_client_info lenovo_yoga_tab2_830_1050_i2c_clients[]
},
};

-static struct gpiod_lookup_table lenovo_yoga_tab2_830_1050_int3496_gpios = {
- .dev_id = "intel-int3496",
- .table = {
- GPIO_LOOKUP("INT33FC:02", 1, "mux", GPIO_ACTIVE_LOW),
- GPIO_LOOKUP("INT33FC:02", 24, "id", GPIO_ACTIVE_HIGH),
- { }
+static const struct property_entry lenovo_yoga_tab2_830_1050_int3496_props[] = {
+ PROPERTY_ENTRY_GPIO("mux-gpios",
+ &int33fc_gpiochip_nodes[2], 1, GPIO_ACTIVE_LOW),
+ PROPERTY_ENTRY_GPIO("id-gpios",
+ &int33fc_gpiochip_nodes[2], 24, GPIO_ACTIVE_HIGH),
+ { }
+};
+
+static const struct platform_device_info lenovo_yoga_tab2_830_1050_pdevs[] __initconst = {
+ {
+ /* For micro USB ID pin handling */
+ .name = "intel-int3496",
+ .id = PLATFORM_DEVID_NONE,
+ .properties = lenovo_yoga_tab2_830_1050_int3496_props,
},
};

@@ -900,7 +886,6 @@ static struct gpiod_lookup_table lenovo_yoga_tab2_830_1050_codec_gpios = {
};

static struct gpiod_lookup_table * const lenovo_yoga_tab2_830_1050_gpios[] = {
- &lenovo_yoga_tab2_830_1050_int3496_gpios,
&lenovo_yoga_tab2_830_1050_codec_gpios,
NULL
};
@@ -911,8 +896,8 @@ static void lenovo_yoga_tab2_830_1050_exit(void);
static struct x86_dev_info lenovo_yoga_tab2_830_1050_info __initdata = {
.i2c_client_info = lenovo_yoga_tab2_830_1050_i2c_clients,
/* i2c_client_count gets set by lenovo_yoga_tab2_830_1050_init() */
- .pdev_info = int3496_pdevs,
- .pdev_count = ARRAY_SIZE(int3496_pdevs),
+ .pdev_info = lenovo_yoga_tab2_830_1050_pdevs,
+ .pdev_count = ARRAY_SIZE(lenovo_yoga_tab2_830_1050_pdevs),
.gpiod_lookup_tables = lenovo_yoga_tab2_830_1050_gpios,
.bat_swnode = &generic_lipo_hv_4v35_battery_node,
.modules = bq24190_modules,
@@ -1305,26 +1290,28 @@ static const struct x86_i2c_client_info nextbook_ares8_i2c_clients[] __initconst
},
};

-static struct gpiod_lookup_table nextbook_ares8_int3496_gpios = {
- .dev_id = "intel-int3496",
- .table = {
- GPIO_LOOKUP("INT33FC:02", 1, "mux", GPIO_ACTIVE_HIGH),
- GPIO_LOOKUP("INT33FC:02", 18, "id", GPIO_ACTIVE_HIGH),
- { }
- },
+static const struct property_entry nextbook_ares8_int3496_props[] = {
+ PROPERTY_ENTRY_GPIO("mux-gpios",
+ &int33fc_gpiochip_nodes[2], 1, GPIO_ACTIVE_HIGH),
+ PROPERTY_ENTRY_GPIO("id-gpios",
+ &int33fc_gpiochip_nodes[2], 18, GPIO_ACTIVE_HIGH),
+ { }
};

-static struct gpiod_lookup_table * const nextbook_ares8_gpios[] = {
- &nextbook_ares8_int3496_gpios,
- NULL
+static const struct platform_device_info nextbook_ares8_pdevs[] __initconst = {
+ {
+ /* For micro USB ID pin handling */
+ .name = "intel-int3496",
+ .id = PLATFORM_DEVID_NONE,
+ .properties = nextbook_ares8_int3496_props,
+ },
};

static const struct x86_dev_info nextbook_ares8_info __initconst = {
.i2c_client_info = nextbook_ares8_i2c_clients,
.i2c_client_count = ARRAY_SIZE(nextbook_ares8_i2c_clients),
- .pdev_info = int3496_pdevs,
- .pdev_count = ARRAY_SIZE(int3496_pdevs),
- .gpiod_lookup_tables = nextbook_ares8_gpios,
+ .pdev_info = nextbook_ares8_pdevs,
+ .pdev_count = ARRAY_SIZE(nextbook_ares8_pdevs),
.invalid_aei_gpiochip = "INT33FC:02",
};

--
2.40.1.606.ga4b1b128d6-goog


2023-05-12 00:40:41

by Dmitry Torokhov

[permalink] [raw]
Subject: [PATCH 1/4] platform/x86: x86-android-tablets: convert Goodix devices to GPIO references

Now that gpiolib supports software nodes to describe GPIOs, switch the
driver away from using GPIO lookup tables for Goodex touchscreens to using
PROPERTY_ENTRY_GPIO() to keep all touchscreen properties together.

Signed-off-by: Dmitry Torokhov <[email protected]>
---
drivers/platform/x86/x86-android-tablets.c | 85 +++++++++++-----------
1 file changed, 44 insertions(+), 41 deletions(-)

diff --git a/drivers/platform/x86/x86-android-tablets.c b/drivers/platform/x86/x86-android-tablets.c
index 111b007656fc..e187fb66b6d7 100644
--- a/drivers/platform/x86/x86-android-tablets.c
+++ b/drivers/platform/x86/x86-android-tablets.c
@@ -17,6 +17,7 @@
#include <linux/gpio/consumer.h>
#include <linux/gpio/driver.h>
#include <linux/gpio/machine.h>
+#include <linux/gpio/property.h>
#include <linux/i2c.h>
#include <linux/input.h>
#include <linux/irq.h>
@@ -184,6 +185,20 @@ struct x86_dev_info {
void (*exit)(void);
};

+/* Software nodes representing GPIO chips used by varios devices below */
+static const struct software_node int33fc_gpiochip_nodes[] = {
+ { .name = "INT33FC:00" },
+ { .name = "INT33FC:01" },
+ { .name = "INT33FC:02" },
+};
+
+static const struct software_node *int33fc_gpiochip_node_group[] = {
+ &int33fc_gpiochip_nodes[0],
+ &int33fc_gpiochip_nodes[1],
+ &int33fc_gpiochip_nodes[2],
+ NULL
+};
+
/* Generic / shared charger / battery settings */
static const char * const tusb1211_chg_det_psy[] = { "tusb1211-charger-detect" };
static const char * const bq24190_psy[] = { "bq24190-charger" };
@@ -400,6 +415,18 @@ static const struct software_node asus_me176c_ug3105_node = {
.properties = asus_me176c_ug3105_props,
};

+static const struct property_entry asus_me176c_touchscreen_props[] = {
+ PROPERTY_ENTRY_GPIO("reset-gpios",
+ &int33fc_gpiochip_nodes[0], 60, GPIO_ACTIVE_HIGH),
+ PROPERTY_ENTRY_GPIO("irq-gpios",
+ &int33fc_gpiochip_nodes[2], 28, GPIO_ACTIVE_HIGH),
+ { }
+};
+
+static const struct software_node asus_me176c_touchscreen_node = {
+ .properties = asus_me176c_touchscreen_props,
+};
+
static const struct x86_i2c_client_info asus_me176c_i2c_clients[] __initconst = {
{
/* bq24297 battery charger */
@@ -455,6 +482,7 @@ static const struct x86_i2c_client_info asus_me176c_i2c_clients[] __initconst =
.type = "GDIX1001:00",
.addr = 0x14,
.dev_name = "goodix_ts",
+ .swnode = &asus_me176c_touchscreen_node,
},
.adapter_path = "\\_SB_.I2C6",
.irq_data = {
@@ -475,18 +503,8 @@ static const struct x86_serdev_info asus_me176c_serdevs[] __initconst = {
},
};

-static struct gpiod_lookup_table asus_me176c_goodix_gpios = {
- .dev_id = "i2c-goodix_ts",
- .table = {
- GPIO_LOOKUP("INT33FC:00", 60, "reset", GPIO_ACTIVE_HIGH),
- GPIO_LOOKUP("INT33FC:02", 28, "irq", GPIO_ACTIVE_HIGH),
- { }
- },
-};
-
static struct gpiod_lookup_table * const asus_me176c_gpios[] = {
&int3496_gpo2_pin22_gpios,
- &asus_me176c_goodix_gpios,
NULL
};

@@ -1181,6 +1199,10 @@ static const struct software_node medion_lifetab_s10346_accel_node = {
static const struct property_entry medion_lifetab_s10346_touchscreen_props[] = {
PROPERTY_ENTRY_BOOL("touchscreen-inverted-x"),
PROPERTY_ENTRY_BOOL("touchscreen-swapped-x-y"),
+ PROPERTY_ENTRY_GPIO("reset-gpios",
+ &int33fc_gpiochip_nodes[1], 26, GPIO_ACTIVE_HIGH),
+ PROPERTY_ENTRY_GPIO("irq-gpios",
+ &int33fc_gpiochip_nodes[2], 3, GPIO_ACTIVE_HIGH),
{ }
};

@@ -1223,24 +1245,9 @@ static const struct x86_i2c_client_info medion_lifetab_s10346_i2c_clients[] __in
},
};

-static struct gpiod_lookup_table medion_lifetab_s10346_goodix_gpios = {
- .dev_id = "i2c-goodix_ts",
- .table = {
- GPIO_LOOKUP("INT33FC:01", 26, "reset", GPIO_ACTIVE_HIGH),
- GPIO_LOOKUP("INT33FC:02", 3, "irq", GPIO_ACTIVE_HIGH),
- { }
- },
-};
-
-static struct gpiod_lookup_table * const medion_lifetab_s10346_gpios[] = {
- &medion_lifetab_s10346_goodix_gpios,
- NULL
-};
-
static const struct x86_dev_info medion_lifetab_s10346_info __initconst = {
.i2c_client_info = medion_lifetab_s10346_i2c_clients,
.i2c_client_count = ARRAY_SIZE(medion_lifetab_s10346_i2c_clients),
- .gpiod_lookup_tables = medion_lifetab_s10346_gpios,
};

/* Nextbook Ares 8 tablets have an Android factory img with everything hardcoded */
@@ -1346,6 +1353,10 @@ static const struct property_entry whitelabel_tm800a550l_goodix_props[] = {
PROPERTY_ENTRY_STRING("firmware-name", "gt912-tm800a550l.fw"),
PROPERTY_ENTRY_STRING("goodix,config-name", "gt912-tm800a550l.cfg"),
PROPERTY_ENTRY_U32("goodix,main-clk", 54),
+ PROPERTY_ENTRY_GPIO("reset-gpios",
+ &int33fc_gpiochip_nodes[1], 26, GPIO_ACTIVE_HIGH),
+ PROPERTY_ENTRY_GPIO("irq-gpios",
+ &int33fc_gpiochip_nodes[2], 3, GPIO_ACTIVE_HIGH),
{ }
};

@@ -1381,24 +1392,9 @@ static const struct x86_i2c_client_info whitelabel_tm800a550l_i2c_clients[] __in
},
};

-static struct gpiod_lookup_table whitelabel_tm800a550l_goodix_gpios = {
- .dev_id = "i2c-goodix_ts",
- .table = {
- GPIO_LOOKUP("INT33FC:01", 26, "reset", GPIO_ACTIVE_HIGH),
- GPIO_LOOKUP("INT33FC:02", 3, "irq", GPIO_ACTIVE_HIGH),
- { }
- },
-};
-
-static struct gpiod_lookup_table * const whitelabel_tm800a550l_gpios[] = {
- &whitelabel_tm800a550l_goodix_gpios,
- NULL
-};
-
static const struct x86_dev_info whitelabel_tm800a550l_info __initconst = {
.i2c_client_info = whitelabel_tm800a550l_i2c_clients,
.i2c_client_count = ARRAY_SIZE(whitelabel_tm800a550l_i2c_clients),
- .gpiod_lookup_tables = whitelabel_tm800a550l_gpios,
};

/*
@@ -1691,6 +1687,7 @@ static void x86_android_tablet_cleanup(void)
gpiod_remove_lookup_table(gpiod_lookup_tables[i]);

software_node_unregister(bat_swnode);
+ software_node_unregister_node_group(int33fc_gpiochip_node_group);
}

static __init int x86_android_tablet_init(void)
@@ -1727,11 +1724,17 @@ static __init int x86_android_tablet_init(void)
for (i = 0; dev_info->modules && dev_info->modules[i]; i++)
request_module(dev_info->modules[i]);

+ ret = software_node_register_node_group(int33fc_gpiochip_node_group);
+ if (ret)
+ return ret;
+
bat_swnode = dev_info->bat_swnode;
if (bat_swnode) {
ret = software_node_register(bat_swnode);
- if (ret)
+ if (ret) {
+ x86_android_tablet_cleanup();
return ret;
+ }
}

gpiod_lookup_tables = dev_info->gpiod_lookup_tables;
--
2.40.1.606.ga4b1b128d6-goog


2023-05-12 00:40:41

by Dmitry Torokhov

[permalink] [raw]
Subject: [PATCH 4/4] platform/x86: x86-android-tablets: convert gpio_keys devices to GPIO references

Now that gpiolib supports software nodes to describe GPIOs, switch the
driver away from using GPIO lookup tables for wm1502 devices to using
PROPERTY_ENTRY_GPIO().

With that we can remove support for gpiod_lookup_tables from the driver.

Signed-off-by: Dmitry Torokhov <[email protected]>
---
drivers/platform/x86/x86-android-tablets.c | 117 ++++++++++++---------
1 file changed, 69 insertions(+), 48 deletions(-)

diff --git a/drivers/platform/x86/x86-android-tablets.c b/drivers/platform/x86/x86-android-tablets.c
index 02ee793a934e..878b2b72d214 100644
--- a/drivers/platform/x86/x86-android-tablets.c
+++ b/drivers/platform/x86/x86-android-tablets.c
@@ -16,7 +16,6 @@
#include <linux/gpio_keys.h>
#include <linux/gpio/consumer.h>
#include <linux/gpio/driver.h>
-#include <linux/gpio/machine.h>
#include <linux/gpio/property.h>
#include <linux/i2c.h>
#include <linux/input.h>
@@ -29,6 +28,7 @@
#include <linux/platform_data/lp855x.h>
#include <linux/platform_device.h>
#include <linux/power/bq24190_charger.h>
+#include <linux/property.h>
#include <linux/reboot.h>
#include <linux/rmi.h>
#include <linux/serdev.h>
@@ -174,7 +174,6 @@ struct x86_dev_info {
char *invalid_aei_gpiochip;
const char * const *modules;
const struct software_node *bat_swnode;
- struct gpiod_lookup_table * const *gpiod_lookup_tables;
const struct x86_i2c_client_info *i2c_client_info;
const struct platform_device_info *pdev_info;
const struct x86_serdev_info *serdev_info;
@@ -269,79 +268,102 @@ static const char * const bq24190_modules[] __initconst = {
* which is not described in the ACPI tables in anyway.
* Use the x86-android-tablets infra to create a gpio-button device for this.
*/
-static struct gpio_keys_button advantech_mica_071_button = {
- .code = KEY_PROG1,
- /* .gpio gets filled in by advantech_mica_071_init() */
- .active_low = true,
- .desc = "prog1_key",
- .type = EV_KEY,
- .wakeup = false,
- .debounce_interval = 50,
-};
-
-static const struct gpio_keys_platform_data advantech_mica_071_button_pdata __initconst = {
- .buttons = &advantech_mica_071_button,
- .nbuttons = 1,
+static const struct software_node advantech_mica_071_gpio_keys_node = {
.name = "prog1_key",
};

-static const struct platform_device_info advantech_mica_071_pdevs[] __initconst = {
+static const struct property_entry advantech_mica_071_prog1_key_props[] = {
+ PROPERTY_ENTRY_U32("linux,code", KEY_PROG1),
+ PROPERTY_ENTRY_STRING("label", "prog1_key"),
+ PROPERTY_ENTRY_GPIO("gpios",
+ &int33fc_gpiochip_nodes[0], 2, GPIO_ACTIVE_LOW),
+ PROPERTY_ENTRY_U32("debounce-interval", 50),
+ { }
+};
+
+static const struct software_node advantech_mica_071_prog1_key_node = {
+ .parent = &advantech_mica_071_gpio_keys_node,
+ .properties = advantech_mica_071_prog1_key_props,
+};
+
+static const struct software_node *advantech_mica_071_swnodes[] = {
+ &advantech_mica_071_gpio_keys_node,
+ &advantech_mica_071_prog1_key_node,
+ NULL
+};
+
+static struct platform_device_info advantech_mica_071_pdevs[] = {
{
.name = "gpio-keys",
.id = PLATFORM_DEVID_AUTO,
- .data = &advantech_mica_071_button_pdata,
- .size_data = sizeof(advantech_mica_071_button_pdata),
+ /* .fwnode will be filled by advantech_mica_071_init() */
},
};

static int __init advantech_mica_071_init(void)
{
- struct gpio_desc *gpiod;
int ret;

- ret = x86_android_tablet_get_gpiod("INT33FC:00", 2, &gpiod);
+ ret = software_node_register_node_group(advantech_mica_071_swnodes);
if (ret < 0)
return ret;
- advantech_mica_071_button.gpio = desc_to_gpio(gpiod);
+
+ advantech_mica_071_pdevs[0].fwnode =
+ software_node_fwnode(advantech_mica_071_swnodes[0]);

return 0;
}

+static void __exit advantech_mica_071_exit(void)
+{
+ software_node_unregister_node_group(advantech_mica_071_swnodes);
+}
+
static const struct x86_dev_info advantech_mica_071_info __initconst = {
.pdev_info = advantech_mica_071_pdevs,
.pdev_count = ARRAY_SIZE(advantech_mica_071_pdevs),
.init = advantech_mica_071_init,
+ .exit = advantech_mica_071_exit,
};

/* Asus ME176C and TF103C tablets shared data */
-static struct gpio_keys_button asus_me176c_tf103c_lid = {
- .code = SW_LID,
- /* .gpio gets filled in by asus_me176c_tf103c_init() */
- .active_low = true,
- .desc = "lid_sw",
- .type = EV_SW,
- .wakeup = true,
- .debounce_interval = 50,
-};
-
-static const struct gpio_keys_platform_data asus_me176c_tf103c_lid_pdata __initconst = {
- .buttons = &asus_me176c_tf103c_lid,
- .nbuttons = 1,
+static const struct software_node asus_me176c_tf103c_gpio_keys_node = {
.name = "lid_sw",
};

+static const struct property_entry asus_me176c_tf103c_lid_props[] = {
+ PROPERTY_ENTRY_U32("linux,input-type", EV_SW),
+ PROPERTY_ENTRY_U32("linux,code", SW_LID),
+ PROPERTY_ENTRY_STRING("label", "lid_sw"),
+ PROPERTY_ENTRY_GPIO("gpios",
+ &int33fc_gpiochip_nodes[2], 2, GPIO_ACTIVE_LOW),
+ PROPERTY_ENTRY_U32("debounce-interval", 50),
+ PROPERTY_ENTRY_BOOL("wakeup-source"),
+ { }
+};
+
+static const struct software_node asus_me176c_tf103c_lid_node = {
+ .parent = &asus_me176c_tf103c_gpio_keys_node,
+ .properties = asus_me176c_tf103c_lid_props,
+};
+
+static const struct software_node *asus_me176c_tf103c_lid_swnodes[] = {
+ &asus_me176c_tf103c_gpio_keys_node,
+ &asus_me176c_tf103c_lid_node,
+ NULL
+};
+
static const struct property_entry asus_me176c_tf103c_int3496_props[] = {
PROPERTY_ENTRY_GPIO("id-gpios",
&int33fc_gpiochip_nodes[2], 22, GPIO_ACTIVE_HIGH),
{ }
};

-static const struct platform_device_info asus_me176c_tf103c_pdevs[] __initconst = {
+static struct platform_device_info asus_me176c_tf103c_pdevs[] = {
{
.name = "gpio-keys",
.id = PLATFORM_DEVID_AUTO,
- .data = &asus_me176c_tf103c_lid_pdata,
- .size_data = sizeof(asus_me176c_tf103c_lid_pdata),
+ /* .fwnode will be filled by asus_me176c_tf103c_init() */
},
{
/* For micro USB ID pin handling */
@@ -353,17 +375,22 @@ static const struct platform_device_info asus_me176c_tf103c_pdevs[] __initconst

static int __init asus_me176c_tf103c_init(void)
{
- struct gpio_desc *gpiod;
int ret;

- ret = x86_android_tablet_get_gpiod("INT33FC:02", 12, &gpiod);
+ ret = software_node_register_node_group(asus_me176c_tf103c_lid_swnodes);
if (ret < 0)
return ret;
- asus_me176c_tf103c_lid.gpio = desc_to_gpio(gpiod);
+
+ asus_me176c_tf103c_pdevs[0].fwnode =
+ software_node_fwnode(asus_me176c_tf103c_lid_swnodes[0]);

return 0;
}

+static void __exit asus_me176c_tf103c_exit(void)
+{
+ software_node_unregister_node_group(asus_me176c_tf103c_lid_swnodes);
+}

/* Asus ME176C tablets have an Android factory img with everything hardcoded */
static const char * const asus_me176c_accel_mount_matrix[] = {
@@ -504,6 +531,7 @@ static const struct x86_dev_info asus_me176c_info __initconst = {
.modules = bq24190_modules,
.invalid_aei_gpiochip = "INT33FC:02",
.init = asus_me176c_tf103c_init,
+ .exit = asus_me176c_tf103c_exit,
};

/* Asus TF103C tablets have an Android factory img with everything hardcoded */
@@ -641,6 +669,7 @@ static const struct x86_dev_info asus_tf103c_info __initconst = {
.modules = bq24190_modules,
.invalid_aei_gpiochip = "INT33FC:02",
.init = asus_me176c_tf103c_init,
+ .exit = asus_me176c_tf103c_exit,
};

/*
@@ -1583,7 +1612,6 @@ static int serdev_count;
static struct i2c_client **i2c_clients;
static struct platform_device **pdevs;
static struct serdev_device **serdevs;
-static struct gpiod_lookup_table * const *gpiod_lookup_tables;
static const struct software_node *bat_swnode;
static void (*exit_handler)(void);

@@ -1706,9 +1734,6 @@ static void x86_android_tablet_cleanup(void)
if (exit_handler)
exit_handler();

- for (i = 0; gpiod_lookup_tables && gpiod_lookup_tables[i]; i++)
- gpiod_remove_lookup_table(gpiod_lookup_tables[i]);
-
software_node_unregister(bat_swnode);
software_node_unregister_node_group(int33fc_gpiochip_node_group);
}
@@ -1760,10 +1785,6 @@ static __init int x86_android_tablet_init(void)
}
}

- gpiod_lookup_tables = dev_info->gpiod_lookup_tables;
- for (i = 0; gpiod_lookup_tables && gpiod_lookup_tables[i]; i++)
- gpiod_add_lookup_table(gpiod_lookup_tables[i]);
-
if (dev_info->init) {
ret = dev_info->init();
if (ret < 0) {
--
2.40.1.606.ga4b1b128d6-goog


2023-05-14 21:27:05

by Hans de Goede

[permalink] [raw]
Subject: Re: [PATCH 0/4] x86-android-tablets: convert to using GPIO references

Hi Dmitry,

On 5/12/23 02:18, Dmitry Torokhov wrote:
> Hi Hans,
>
> This series came about because now software nodes can be used to
> describe GPIOs (via PROPERTY_ENTRY_GPIO() macros) and I would like to
> eventually get rid of gpio_keys_platform_data structure.
>
> So while I was doing the conversions from GPIO_LOOKUP() tables for
> gpio_keys devices I decided to convert the rest of them as well. Maybe
> some time in the future we can drop support for GPIO_LOOKUP() and rely
> on device properties exclusively.
>
> This is completely untested.

Thank you for your work on this. I have hw to test this.

But it seems that you have based this on an older tree,
in 6.4-rc1 the x86-android-tablets code has been split
over multiple files in their own subdir because it was
becoming unyielding.

Can you please rebase this on top of:

https://git.kernel.org/pub/scm/linux/kernel/git/pdx86/platform-drivers-x86.git/log/?h=for-next

?

Regards,

Hans





> Dmitry Torokhov (4):
> platform/x86: x86-android-tablets: convert Goodix devices to GPIO references
> platform/x86: x86-android-tablets: convert int3496 devices to GPIO references
> platform/x86: x86-android-tablets: convert wm1502 devices to GPIO references
> platform/x86: x86-android-tablets: convert gpio_keys devices to GPIO references
>
> drivers/platform/x86/x86-android-tablets.c | 355 ++++++++++++---------
> 1 file changed, 201 insertions(+), 154 deletions(-)
>