Exposes the FHD panel toggle avavilable on new ASUS Duo laptops.
Signed-off-by: Luke D. Jones <luke@xxxxxxxxxx>
---
.../ABI/testing/sysfs-platform-asus-wmi | 9 +++++++++
drivers/platform/x86/asus-wmi.c | 20 +++++++++++++++++++
include/linux/platform_data/x86/asus-wmi.h | 1 +
3 files changed, 30 insertions(+)
diff --git a/Documentation/ABI/testing/sysfs-platform-asus-wmi b/Documentation/ABI/testing/sysfs-platform-asus-wmi
index 984a04f32fd0..3b4eeea75b7b 100644
--- a/Documentation/ABI/testing/sysfs-platform-asus-wmi
+++ b/Documentation/ABI/testing/sysfs-platform-asus-wmi
@@ -217,3 +217,12 @@ Description:
Set if the MCU can go in to low-power mode on system sleep
* 0 - False,
* 1 - True
+
+What: /sys/devices/platform/<platform>/panel_fhd
+Date: Apr 2024
+KernelVersion: 6.11
+Contact: "Luke Jones" <luke@xxxxxxxxxx>
+Description:
+ Set panel to UHD or FHD mode
+ * 0 - UHD,
+ * 1 - FHD
diff --git a/drivers/platform/x86/asus-wmi.c b/drivers/platform/x86/asus-wmi.c
index 260548aa6a42..4b045f1828f1 100644
--- a/drivers/platform/x86/asus-wmi.c
+++ b/drivers/platform/x86/asus-wmi.c
@@ -798,6 +798,23 @@ WMI_ATTR_SIMPLE_RW(panel_od, 0, 1, ASUS_WMI_DEVID_PANEL_OD);
WMI_ATTR_SIMPLE_RW(boot_sound, 0, 1, ASUS_WMI_DEVID_BOOT_SOUND);
WMI_ATTR_SIMPLE_RO(charge_mode, ASUS_WMI_DEVID_CHARGE_MODE);
+static ssize_t panel_fhd_store(struct device *dev,
+ struct device_attribute *attr, const char *buf, size_t count)
+{
+ struct asus_wmi *asus = dev_get_drvdata(dev);
+ int err;
+
+ err = rog_tunable_store(asus, &attr->attr, buf, count,
+ 0, 1, -1, NULL, ASUS_WMI_DEVID_PANEL_FHD);
+ if (err < 0)
+ return err;
+
+ pr_info("Panel UHD/FHD display mode changed, reboot required\n");
+ return count;
+}
+WMI_SIMPLE_SHOW(panel_fhd, "%d\n", ASUS_WMI_DEVID_PANEL_FHD);
+static DEVICE_ATTR_RW(panel_fhd);
+
/* Tablet mode ****************************************************************/
static void asus_wmi_tablet_mode_get_state(struct asus_wmi *asus)
@@ -4040,6 +4057,7 @@ static struct attribute *platform_attributes[] = {
&dev_attr_mcu_powersave.attr,
&dev_attr_boot_sound.attr,
&dev_attr_panel_od.attr,
+ &dev_attr_panel_fhd.attr,
&dev_attr_mini_led_mode.attr,
&dev_attr_available_mini_led_mode.attr,
NULL
@@ -4111,6 +4129,8 @@ static umode_t asus_sysfs_is_visible(struct kobject *kobj,
devid = ASUS_WMI_DEVID_BOOT_SOUND;
else if (attr == &dev_attr_panel_od.attr)
devid = ASUS_WMI_DEVID_PANEL_OD;
+ else if (attr == &dev_attr_panel_fhd.attr)
+ devid = ASUS_WMI_DEVID_PANEL_FHD;
else if (attr == &dev_attr_mini_led_mode.attr)
ok = asus->mini_led_dev_id != 0;
else if (attr == &dev_attr_available_mini_led_mode.attr)
diff --git a/include/linux/platform_data/x86/asus-wmi.h b/include/linux/platform_data/x86/asus-wmi.h
index 79a50102440d..6c51d41ffc20 100644
--- a/include/linux/platform_data/x86/asus-wmi.h
+++ b/include/linux/platform_data/x86/asus-wmi.h
@@ -72,6 +72,7 @@
#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_PANEL_FHD 0x0005001C
/* Storage */
#define ASUS_WMI_DEVID_CARDREADER 0x00080013
--
2.45.1
