platform/x86: asus-wmi: Document the dgpu_disable sysfs attribute

The dgpu_disable attribute was not documented, this adds the
required documentation.

Fixes: 98829e84dc67 ("asus-wmi: Add dgpu disable method")
Signed-off-by: Luke D. Jones <luke@ljones.dev>
Link: https://lore.kernel.org/r/20220812222509.292692-2-luke@ljones.dev
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>

diff --git a/Documentation/ABI/testing/sysfs-platform-asus-wmi b/Documentation/ABI/testing/sysfs-platform-asus-wmi
index 0488573..0f8f077 100644 (file)
--- a/Documentation/ABI/testing/sysfs-platform-asus-wmi
+++ b/Documentation/ABI/testing/sysfs-platform-asus-wmi
@@ -57,3 +57,12 @@ Description:
                        * 0 - default,
                        * 1 - overboost,
                        * 2 - silent
+
+What:          /sys/devices/platform/<platform>/dgpu_disable
+Date:          Aug 2022
+KernelVersion: 5.17
+Contact:       "Luke Jones" <luke@ljones.dev>
+Description:
+               Disable discrete GPU:
+                       * 0 - Enable dGPU,
+                       * 1 - Disable dGPU