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HID: apple: ensure the keyboard backlight is off if suspending

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Some users reported that upon suspending their keyboard backlight
remained on. Fix this by adding the missing LED_CORE_SUSPENDRESUME flag.

Cc: stable@vger.kernel.org
Fixes: 394ba612f9 ("HID: apple: Add support for magic keyboard backlight on T2 Macs")
Fixes: 9018eacbe6 ("HID: apple: Add support for keyboard backlight on certain T2 Macs.")
Reported-by: André Eikmeyer <andre.eikmeyer@gmail.com>
Tested-by: André Eikmeyer <andre.eikmeyer@gmail.com>
Signed-off-by: Aditya Garg <gargaditya08@live.com>
Signed-off-by: Jiri Kosina <jkosina@suse.com>
This commit is contained in:
Aditya Garg 2026-04-04 15:14:34 +05:30 committed by Jiri Kosina
parent d4229fc0cb
commit 1f95a6cd5a
1 changed files with 2 additions and 0 deletions
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2
drivers/hid/hid-apple.c
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@ -858,6 +858,7 @@ static int apple_backlight_init(struct hid_device *hdev)
asc->backlight->cdev.name = "apple::kbd_backlight"; asc->backlight->cdev.name = "apple::kbd_backlight";
asc->backlight->cdev.max_brightness = rep->backlight_on_max; asc->backlight->cdev.max_brightness = rep->backlight_on_max;
asc->backlight->cdev.brightness_set_blocking = apple_backlight_led_set; asc->backlight->cdev.brightness_set_blocking = apple_backlight_led_set;
asc->backlight->cdev.flags = LED_CORE_SUSPENDRESUME;
ret = apple_backlight_set(hdev, 0, 0); ret = apple_backlight_set(hdev, 0, 0);
if (ret < 0) { if (ret < 0) {
@ -926,6 +927,7 @@ static int apple_magic_backlight_init(struct hid_device *hdev)
backlight->cdev.name = ":white:" LED_FUNCTION_KBD_BACKLIGHT; backlight->cdev.name = ":white:" LED_FUNCTION_KBD_BACKLIGHT;
backlight->cdev.max_brightness = backlight->brightness->field[0]->logical_maximum; backlight->cdev.max_brightness = backlight->brightness->field[0]->logical_maximum;
backlight->cdev.brightness_set_blocking = apple_magic_backlight_led_set; backlight->cdev.brightness_set_blocking = apple_magic_backlight_led_set;
backlight->cdev.flags = LED_CORE_SUSPENDRESUME;
apple_magic_backlight_set(backlight, 0, 0); apple_magic_backlight_set(backlight, 0, 0);