platform/x86: asus-armoury: add screen auto-brightness toggle

Add screen_auto_brightness toggle supported on some laptops.

Signed-off-by: Denis Benato <denis.benato@linux.dev>
Signed-off-by: Luke D. Jones <luke@ljones.dev>
Reviewed-by: Mario Limonciello <mario.limonciello@amd.com>
Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Link: https://patch.msgid.link/20251102215319.3126879-7-denis.benato@linux.dev
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>

Author: flukejones

drivers/platform/x86/asus-armoury.c

@@ -707,6 +707,9 @@ ASUS_ATTR_GROUP_BOOL_RW(panel_od, "panel_overdrive", ASUS_WMI_DEVID_PANEL_OD,
 			"Set the panel refresh overdrive");
 ASUS_ATTR_GROUP_BOOL_RW(panel_hd_mode, "panel_hd_mode", ASUS_WMI_DEVID_PANEL_HD,
 			"Set the panel HD mode to UHD<0> or FHD<1>");
+ASUS_ATTR_GROUP_BOOL_RW(screen_auto_brightness, "screen_auto_brightness",
+			ASUS_WMI_DEVID_SCREEN_AUTO_BRIGHTNESS,
+			"Set the panel brightness to Off<0> or On<1>");
 ASUS_ATTR_GROUP_BOOL_RO(egpu_connected, "egpu_connected", ASUS_WMI_DEVID_EGPU_CONNECTED,
 			"Show the eGPU connection status");
 
@@ -722,6 +725,7 @@ static const struct asus_attr_group armoury_attr_groups[] = {
 	{ &mcu_powersave_attr_group, ASUS_WMI_DEVID_MCU_POWERSAVE },
 	{ &panel_od_attr_group, ASUS_WMI_DEVID_PANEL_OD },
 	{ &panel_hd_mode_attr_group, ASUS_WMI_DEVID_PANEL_HD },
+	{ &screen_auto_brightness_attr_group, ASUS_WMI_DEVID_SCREEN_AUTO_BRIGHTNESS },
 };
 
 static int asus_fw_attr_add(void)

include/linux/platform_data/x86/asus-wmi.h

@@ -82,6 +82,7 @@
 #define ASUS_WMI_DEVID_LID_FLIP_ROG	0x00060077
 #define ASUS_WMI_DEVID_MINI_LED_MODE	0x0005001E
 #define ASUS_WMI_DEVID_MINI_LED_MODE2	0x0005002E
+#define ASUS_WMI_DEVID_SCREEN_AUTO_BRIGHTNESS	0x0005002A
 
 /* Storage */
 #define ASUS_WMI_DEVID_CARDREADER	0x00080013