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

[Pavel Nikulin <pavel@noa-labs.com>]

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>
---
 drivers/platform/x86/asus-wmi.c | 11 ++++++++++-
 1 file changed, 10 insertions(+), 1 deletion(-)

diff --git a/drivers/platform/x86/asus-wmi.c b/drivers/platform/x86/asus-wmi.c
index 38ef778e8c19..0c697b46f436 100644
--- a/drivers/platform/x86/asus-wmi.c
+++ b/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);
-- 
2.49.0