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platform/x86: asus-wmi: support setting mini-LED mode

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Support changing the mini-LED mode on some of the newer ASUS laptops.

Signed-off-by: Luke D. Jones <luke@ljones.dev>
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Link: https://lore.kernel.org/r/20230630053552.976579-8-luke@ljones.dev
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
This commit is contained in:
Luke D. Jones 2023-06-30 17:35:51 +12:00 committed by Hans de Goede
parent 609b3670c2
commit abac4259fc
3 changed files with 63 additions and 0 deletions
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9
Documentation/ABI/testing/sysfs-platform-asus-wmi
View file

@ -117,3 +117,12 @@ Description:
Show if the egpu (XG Mobile) is correctly connected:
* 0 - False,
* 1 - True
What: /sys/devices/platform/<platform>/mini_led_mode
Date: Jun 2023
KernelVersion: 6.5
Contact: "Luke Jones" <luke@ljones.dev>
Description:
Change the mini-LED mode:
* 0 - Single-zone,
* 1 - Multi-zone

53
drivers/platform/x86/asus-wmi.c
View file

@ -265,6 +265,7 @@ struct asus_wmi {
bool battery_rsoc_available;
bool panel_overdrive_available;
bool mini_led_mode_available;
struct hotplug_slot hotplug_slot;
struct mutex hotplug_lock;
@ -1820,6 +1821,54 @@ static ssize_t panel_od_store(struct device *dev,
}
static DEVICE_ATTR_RW(panel_od);
/* Mini-LED mode **************************************************************/
static ssize_t mini_led_mode_show(struct device *dev,
struct device_attribute *attr, char *buf)
{
struct asus_wmi *asus = dev_get_drvdata(dev);
int result;
result = asus_wmi_get_devstate_simple(asus, ASUS_WMI_DEVID_MINI_LED_MODE);
if (result < 0)
return result;
return sysfs_emit(buf, "%d\n", result);
}
static ssize_t mini_led_mode_store(struct device *dev,
struct device_attribute *attr,
const char *buf, size_t count)
{
int result, err;
u32 mode;
struct asus_wmi *asus = dev_get_drvdata(dev);
result = kstrtou32(buf, 10, &mode);
if (result)
return result;
if (mode > 1)
return -EINVAL;
err = asus_wmi_set_devstate(ASUS_WMI_DEVID_MINI_LED_MODE, mode, &result);
if (err) {
pr_warn("Failed to set mini-LED: %d\n", err);
return err;
}
if (result > 1) {
pr_warn("Failed to set mini-LED mode (result): 0x%x\n", result);
return -EIO;
}
sysfs_notify(&asus->platform_device->dev.kobj, NULL, "mini_led_mode");
return count;
}
static DEVICE_ATTR_RW(mini_led_mode);
/* Quirks *********************************************************************/
static void asus_wmi_set_xusb2pr(struct asus_wmi *asus)
@ -3727,6 +3776,7 @@ static struct attribute *platform_attributes[] = {
&dev_attr_fan_boost_mode.attr,
&dev_attr_throttle_thermal_policy.attr,
&dev_attr_panel_od.attr,
&dev_attr_mini_led_mode.attr,
NULL
};
@ -3764,6 +3814,8 @@ static umode_t asus_sysfs_is_visible(struct kobject *kobj,
ok = asus->throttle_thermal_policy_available;
else if (attr == &dev_attr_panel_od.attr)
ok = asus->panel_overdrive_available;
else if (attr == &dev_attr_mini_led_mode.attr)
ok = asus->mini_led_mode_available;
if (devid != -1)
ok = !(asus_wmi_get_devstate_simple(asus, devid) < 0);
@ -4026,6 +4078,7 @@ static int asus_wmi_add(struct platform_device *pdev)
asus->kbd_rgb_mode_available = asus_wmi_dev_is_present(asus, ASUS_WMI_DEVID_TUF_RGB_MODE);
asus->kbd_rgb_state_available = asus_wmi_dev_is_present(asus, ASUS_WMI_DEVID_TUF_RGB_STATE);
asus->panel_overdrive_available = asus_wmi_dev_is_present(asus, ASUS_WMI_DEVID_PANEL_OD);
asus->mini_led_mode_available = asus_wmi_dev_is_present(asus, ASUS_WMI_DEVID_MINI_LED_MODE);
err = fan_boost_mode_check_present(asus);
if (err)

1
include/linux/platform_data/x86/asus-wmi.h
View file

@ -66,6 +66,7 @@
#define ASUS_WMI_DEVID_CAMERA 0x00060013
#define ASUS_WMI_DEVID_LID_FLIP 0x00060062
#define ASUS_WMI_DEVID_LID_FLIP_ROG 0x00060077
#define ASUS_WMI_DEVID_MINI_LED_MODE 0x0005001E
/* Storage */
#define ASUS_WMI_DEVID_CARDREADER 0x00080013