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platform/x86: lenovo-yogabook: Abstract kbd backlight setting 

Abstract kbd backlight setting.

This is a preparation patch for making lenovo-yogabook-wmi also work
on the Android version of the Yoga Book 1 which does not have a WMI
interface to deal with toggling the keyboard half between
touch-keyboard and wacom-digitizer mode.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Link: https://lore.kernel.org/r/20230430165807.472798-13-hdegoede@redhat.com
This commit is contained in:
Hans de Goede 2023-04-30 18:58:00 +02:00
parent 9acf236e95
commit f771ec85b6
1 changed files with 8 additions and 5 deletions
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13
drivers/platform/x86/lenovo-yogabook-wmi.c
View File

@ -31,6 +31,7 @@ struct yogabook_wmi {
struct device *dig_dev;
struct led_classdev *pen_led;
struct gpio_desc *backside_hall_gpio;
int (*set_kbd_backlight)(struct yogabook_wmi *data, uint8_t level);
int backside_hall_irq;
struct work_struct work;
struct led_classdev kbd_bl_led;
@ -97,7 +98,7 @@ static void yogabook_wmi_work(struct work_struct *work)
* Must be done before releasing the keyboard touchscreen driver,
* so that the keyboard touchscreen dev is still in D0.
*/
yogabook_wmi_set_kbd_backlight(data, 0);
data->set_kbd_backlight(data, 0);
device_release_driver(data->kbd_dev);
clear_bit(YB_KBD_IS_ON, &data->flags);
}
@ -113,7 +114,7 @@ static void yogabook_wmi_work(struct work_struct *work)
if (r)
dev_warn(data->dev, "Reprobe of keyboard touchscreen failed: %d\n", r);
yogabook_wmi_set_kbd_backlight(data, data->brightness);
data->set_kbd_backlight(data, data->brightness);
set_bit(YB_KBD_IS_ON, &data->flags);
}
@ -182,7 +183,7 @@ static int kbd_brightness_set(struct led_classdev *cdev,
if (!test_bit(YB_KBD_IS_ON, &data->flags))
return 0;
return yogabook_wmi_set_kbd_backlight(data, data->brightness);
return data->set_kbd_backlight(data, data->brightness);
}
static struct gpiod_lookup_table yogabook_wmi_gpios = {
@ -232,7 +233,7 @@ static int yogabook_probe(struct device *dev, struct yogabook_wmi *data,
data->backside_hall_irq = r;
/* Set default brightness before enabling the IRQ */
yogabook_wmi_set_kbd_backlight(data, YB_KBD_BL_DEFAULT);
data->set_kbd_backlight(data, YB_KBD_BL_DEFAULT);
r = request_irq(data->backside_hall_irq, yogabook_backside_hall_irq,
IRQF_TRIGGER_RISING | IRQF_TRIGGER_FALLING,
@ -294,6 +295,8 @@ static int yogabook_wmi_probe(struct wmi_device *wdev, const void *context)
goto error_put_devs;
}
data->set_kbd_backlight = yogabook_wmi_set_kbd_backlight;
r = yogabook_probe(dev, data, "ybwmi::kbd_backlight");
if (r)
goto error_put_devs;
@ -352,7 +355,7 @@ static int yogabook_resume(struct device *dev)
struct yogabook_wmi *data = dev_get_drvdata(dev);
if (test_bit(YB_KBD_IS_ON, &data->flags))
yogabook_wmi_set_kbd_backlight(data, data->brightness);
data->set_kbd_backlight(data, data->brightness);
clear_bit(YB_SUSPENDED, &data->flags);