From: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Date: Fri, 18 Jan 2019 22:35:45 +0000 (-0800)
Subject: HID: input: add mapping for "Toggle Display" key
X-Git-Tag: v4.9.177~42
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=e1b2ae96ac051c673ed4ac83b769ddbf6420280f;p=platform%2Fkernel%2Flinux-amlogic.git

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 302a24931147..9f7b1cf726a8 100644
--- 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.