mirrors
/
linux-stable
mirror of https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
1
0
Fork 0
Code Issues Releases Wiki Activity

platform/x86: x86-android-tablets: Add support for more then 1 gpio_key 

Modify the gpio_keys support in x86_android_tablet_init() for
tablets which have more then 1 key/button which needs to be handled
by the gpio_keys driver.

This requires copying over the struct gpio_keys_button from
the x86_gpio_button struct array to a new gpio_keys_button struct array,
as an added benefit this allows marking the per model x86_gpio_button
arrays __initconst so that they all can be freed after module init().

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Link: https://lore.kernel.org/r/20230505205901.42649-1-hdegoede@redhat.com
This commit is contained in:
Hans de Goede 2023-05-05 22:59:00 +02:00
parent fbc29478aa
commit 6dc6c0c13d
5 changed files with 34 additions and 17 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

4
drivers/platform/x86/x86-android-tablets/asus.c
View File

@ -24,7 +24,7 @@ static struct gpiod_lookup_table int3496_gpo2_pin22_gpios = {
},
};
static struct x86_gpio_button asus_me176c_tf103c_lid = {
static const struct x86_gpio_button asus_me176c_tf103c_lid __initconst = {
.button = {
.code = SW_LID,
.active_low = true,
@ -175,6 +175,7 @@ const struct x86_dev_info asus_me176c_info __initconst = {
.serdev_info = asus_me176c_serdevs,
.serdev_count = ARRAY_SIZE(asus_me176c_serdevs),
.gpio_button = &asus_me176c_tf103c_lid,
.gpio_button_count = 1,
.gpiod_lookup_tables = asus_me176c_gpios,
.bat_swnode = &generic_lipo_hv_4v35_battery_node,
.modules = bq24190_modules,
@ -317,6 +318,7 @@ const struct x86_dev_info asus_tf103c_info __initconst = {
.pdev_info = int3496_pdevs,
.pdev_count = 1,
.gpio_button = &asus_me176c_tf103c_lid,
.gpio_button_count = 1,
.gpiod_lookup_tables = asus_tf103c_gpios,
.bat_swnode = &asus_tf103c_battery_node,
.modules = bq24190_modules,

32
drivers/platform/x86/x86-android-tablets/core.c
View File

@ -124,6 +124,7 @@ static int serdev_count;
static struct i2c_client **i2c_clients;
static struct platform_device **pdevs;
static struct serdev_device **serdevs;
static struct gpio_keys_button *buttons;
static struct gpiod_lookup_table * const *gpiod_lookup_tables;
static const struct software_node *bat_swnode;
static void (*exit_handler)(void);
@ -238,6 +239,7 @@ static void x86_android_tablet_cleanup(void)
platform_device_unregister(pdevs[i]);
kfree(pdevs);
kfree(buttons);
for (i = 0; i < i2c_client_count; i++)
i2c_unregister_device(i2c_clients[i]);
@ -353,22 +355,30 @@ static __init int x86_android_tablet_init(void)
}
}
if (dev_info->gpio_button) {
struct gpio_keys_platform_data pdata = {
.buttons = &dev_info->gpio_button->button,
.nbuttons = 1,
};
if (dev_info->gpio_button_count) {
struct gpio_keys_platform_data pdata = { };
struct gpio_desc *gpiod;
/* Get GPIO for the gpio-button */
ret = x86_android_tablet_get_gpiod(dev_info->gpio_button->chip,
dev_info->gpio_button->pin, &gpiod);
if (ret < 0) {
buttons = kcalloc(dev_info->gpio_button_count, sizeof(*buttons), GFP_KERNEL);
if (!buttons) {
x86_android_tablet_cleanup();
return ret;
return -ENOMEM;
}
dev_info->gpio_button->button.gpio = desc_to_gpio(gpiod);
for (i = 0; i < dev_info->gpio_button_count; i++) {
ret = x86_android_tablet_get_gpiod(dev_info->gpio_button[i].chip,
dev_info->gpio_button[i].pin, &gpiod);
if (ret < 0) {
x86_android_tablet_cleanup();
return ret;
}
buttons[i] = dev_info->gpio_button[i].button;
buttons[i].gpio = desc_to_gpio(gpiod);
}
pdata.buttons = buttons;
pdata.nbuttons = dev_info->gpio_button_count;
pdevs[pdev_count] = platform_device_register_data(NULL, "gpio-keys",
PLATFORM_DEVID_AUTO,

6
drivers/platform/x86/x86-android-tablets/lenovo.c
View File

@ -160,7 +160,7 @@ static const struct x86_serdev_info lenovo_yb1_x90_serdevs[] __initconst = {
},
};
static struct x86_gpio_button lenovo_yb1_x90_lid = {
static const struct x86_gpio_button lenovo_yb1_x90_lid __initconst = {
.button = {
.code = SW_LID,
.active_low = true,
@ -232,6 +232,7 @@ const struct x86_dev_info lenovo_yogabook_x90_info __initconst = {
.serdev_info = lenovo_yb1_x90_serdevs,
.serdev_count = ARRAY_SIZE(lenovo_yb1_x90_serdevs),
.gpio_button = &lenovo_yb1_x90_lid,
.gpio_button_count = 1,
.gpiod_lookup_tables = lenovo_yb1_x90_gpios,
.init = lenovo_yb1_x90_init,
};
@ -268,7 +269,7 @@ static const struct software_node lenovo_yoga_tab2_830_1050_bq24190_node = {
.properties = lenovo_yoga_tab2_830_1050_bq24190_props,
};
static struct x86_gpio_button lenovo_yoga_tab2_830_1050_lid = {
static const struct x86_gpio_button lenovo_yoga_tab2_830_1050_lid __initconst = {
.button = {
.code = SW_LID,
.active_low = true,
@ -394,6 +395,7 @@ const struct x86_dev_info lenovo_yoga_tab2_830_1050_info __initconst = {
.pdev_info = int3496_pdevs,
.pdev_count = 1,
.gpio_button = &lenovo_yoga_tab2_830_1050_lid,
.gpio_button_count = 1,
.gpiod_lookup_tables = lenovo_yoga_tab2_830_1050_gpios,
.bat_swnode = &generic_lipo_hv_4v35_battery_node,
.modules = bq24190_modules,

6
drivers/platform/x86/x86-android-tablets/other.c
View File

@ -94,7 +94,7 @@ const struct x86_dev_info acer_b1_750_info __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 x86_gpio_button advantech_mica_071_button = {
static const struct x86_gpio_button advantech_mica_071_button __initconst = {
.button = {
.code = KEY_PROG1,
.active_low = true,
@ -109,6 +109,7 @@ static struct x86_gpio_button advantech_mica_071_button = {
const struct x86_dev_info advantech_mica_071_info __initconst = {
.gpio_button = &advantech_mica_071_button,
.gpio_button_count = 1,
};
/*
@ -449,7 +450,7 @@ const struct x86_dev_info nextbook_ares8a_info __initconst = {
* This button has a WMI interface, but that is broken. Instead of trying to
* use the broken WMI interface, instantiate a gpio_keys device for this.
*/
static struct x86_gpio_button peaq_c1010_button = {
static const struct x86_gpio_button peaq_c1010_button __initconst = {
.button = {
.code = KEY_SOUND,
.active_low = true,
@ -464,6 +465,7 @@ static struct x86_gpio_button peaq_c1010_button = {
const struct x86_dev_info peaq_c1010_info __initconst = {
.gpio_button = &peaq_c1010_button,
.gpio_button_count = 1,
/*
* Move the ACPI event handler used by the broken WMI interface out of
* the way. This is the only event handler on INT33FC:00.

3
drivers/platform/x86/x86-android-tablets/x86-android-tablets.h
View File

@ -73,10 +73,11 @@ struct x86_dev_info {
const struct x86_i2c_client_info *i2c_client_info;
const struct platform_device_info *pdev_info;
const struct x86_serdev_info *serdev_info;
struct x86_gpio_button *gpio_button;
const struct x86_gpio_button *gpio_button;
int i2c_client_count;
int pdev_count;
int serdev_count;
int gpio_button_count;
int (*init)(void);
void (*exit)(void);
};