platform/x86: asus-wmi: Disable OOBE state after resume from hibernation

ASUS firmware resets OOBE state during S4 suspend, so the keyboard
blinks during resume from hibernation. This patch disables OOBE state
after resume from hibernation.

Signed-off-by: Pavel Nikulin <pavel@noa-labs.com>
Link: https://lore.kernel.org/r/20250418140706.1691-1-pavel@noa-labs.com
Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>

drivers/platform/x86/asus-wmi.c

@@ -304,6 +304,7 @@ struct asus_wmi {
 
 	u32 kbd_rgb_dev;
 	bool kbd_rgb_state_available;
+	bool oobe_state_available;
 
 	u8 throttle_thermal_policy_mode;
 	u32 throttle_thermal_policy_dev;
@@ -1826,7 +1827,7 @@ static int asus_wmi_led_init(struct asus_wmi *asus)
 			goto error;
 	}
 
-	if (asus_wmi_dev_is_present(asus, ASUS_WMI_DEVID_OOBE)) {
+	if (asus->oobe_state_available) {
 		/*
 		 * Disable OOBE state, so that e.g. the keyboard backlight
 		 * works.
@@ -4723,6 +4724,7 @@ static int asus_wmi_add(struct platform_device *pdev)
 	asus->egpu_enable_available = asus_wmi_dev_is_present(asus, ASUS_WMI_DEVID_EGPU);
 	asus->dgpu_disable_available = asus_wmi_dev_is_present(asus, ASUS_WMI_DEVID_DGPU);
 	asus->kbd_rgb_state_available = asus_wmi_dev_is_present(asus, ASUS_WMI_DEVID_TUF_RGB_STATE);
+	asus->oobe_state_available = asus_wmi_dev_is_present(asus, ASUS_WMI_DEVID_OOBE);
 	asus->ally_mcu_usb_switch = acpi_has_method(NULL, ASUS_USB0_PWR_EC0_CSEE)
 						&& dmi_check_system(asus_ally_mcu_quirk);
 
@@ -4970,6 +4972,13 @@ static int asus_hotk_restore(struct device *device)
 	}
 	if (!IS_ERR_OR_NULL(asus->kbd_led.dev))
 		kbd_led_update(asus);
+	if (asus->oobe_state_available) {
+		/*
+		 * Disable OOBE state, so that e.g. the keyboard backlight
+		 * works.
+		 */
+		asus_wmi_set_devstate(ASUS_WMI_DEVID_OOBE, 1, NULL);
+	}
 
 	if (asus_wmi_has_fnlock_key(asus))
 		asus_wmi_fnlock_update(asus);