HID: input: add mapping for "Toggle Display" key

[ Upstream commit c01908a14bf735b871170092807c618bb9dae654 ]

According to HUT 1.12 usage 0xb5 from the generic desktop page is reserved
for switching between external and internal display, so let's add the
mapping.

Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>

diff --git a/drivers/hid/hid-input.c b/drivers/hid/hid-input.c
index 302a249..9f7b1cf 100644 (file)
--- a/drivers/hid/hid-input.c
+++ b/drivers/hid/hid-input.c
@@ -607,6 +607,14 @@ static void hidinput_configure_usage(struct hid_input *hidinput, struct hid_fiel
                        break;
                }
 
+               if ((usage->hid & 0xf0) == 0xb0) {      /* SC - Display */
+                       switch (usage->hid & 0xf) {
+                       case 0x05: map_key_clear(KEY_SWITCHVIDEOMODE); break;
+                       default: goto ignore;
+                       }
+                       break;
+               }
+
                /*
                 * Some lazy vendors declare 255 usages for System Control,
                 * leading to the creation of ABS_X|Y axis and too many others.