[PATCH v3 2/2] platform/x86: uniwill-laptop: Map the screen rotation key

[Mohamed Jouini <amad3v@gmail.com>]

The PCSpecialist Recoil 16 AMD / TUXEDO Stellaris 16 Gen7 chassis has an
"Sc" key next to F12, meant to rotate the lay-flat screen by 180 degrees.
It reports WMI event 0xD0, which is currently reported as KEY_UNKNOWN.
Map it to KEY_ROTATE_DISPLAY.

Signed-off-by: Mohamed Jouini <amad3v@gmail.com>
Reviewed-by: Armin Wolf <W_Armin@gmx.de>
---
Changes in v3:
- None. TUXEDO know of no device using event 0xD0:
  https://lore.kernel.org/r/66a47248ecfa1704186274f2c245d3f5@tuxedo.de

Changes in v2:
- Added Reviewed-by.

 drivers/platform/x86/uniwill/uniwill-acpi.c | 3 +++
 drivers/platform/x86/uniwill/uniwill-wmi.h  | 3 +++
 2 files changed, 6 insertions(+)

diff --git a/drivers/platform/x86/uniwill/uniwill-acpi.c b/drivers/platform/x86/uniwill/uniwill-acpi.c
index dc9b73afd..6b0dd0e4f 100644
--- a/drivers/platform/x86/uniwill/uniwill-acpi.c
+++ b/drivers/platform/x86/uniwill/uniwill-acpi.c
@@ -506,6 +506,9 @@ static const struct key_entry uniwill_keymap[] = {
 	/* Reported when the user wants to toggle the webcam */
 	{ KE_IGNORE,    UNIWILL_OSD_WEBCAM_TOGGLE,              { KEY_UNKNOWN }},
 
+	/* Reported when the user wants to rotate the (lay-flat) screen by 180 degrees */
+	{ KE_KEY,       UNIWILL_OSD_ROTATE_SCREEN,              { KEY_ROTATE_DISPLAY }},
+
 	{ KE_END }
 };
 
diff --git a/drivers/platform/x86/uniwill/uniwill-wmi.h b/drivers/platform/x86/uniwill/uniwill-wmi.h
index b25b2f312..1b6f650c4 100644
--- a/drivers/platform/x86/uniwill/uniwill-wmi.h
+++ b/drivers/platform/x86/uniwill/uniwill-wmi.h
@@ -117,6 +117,9 @@
 
 #define UNIWILL_OSD_WEBCAM_TOGGLE		0xCF
 
+/* "Sc" key next to F12 on the PCSpecialist Recoil 16 / Stellaris 16 Gen7 */
+#define UNIWILL_OSD_ROTATE_SCREEN		0xD0
+
 #define UNIWILL_OSD_KBD_BACKLIGHT_CHANGED	0xF0
 
 struct device;
-- 
2.56.0