Input: cros_ec_keyb - add 3 buttons for monitor function

Add 3 extra buttons: 'brightness up', 'brightness down'
and 'screen lock' to support monitor manipulating function.

Signed-off-by: Joe Wu <joewu@msi.com>
Link: https://lore.kernel.org/r/e23628e2cb464d238eb1c33a9e1e516b@msi.com
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>

drivers/input/keyboard/cros_ec_keyb.c

@@ -100,6 +100,21 @@ static const struct cros_ec_bs_map cros_ec_keyb_bs[] = {
 		.code		= KEY_VOLUMEDOWN,
 		.bit		= EC_MKBP_VOL_DOWN,
 	},
+	{
+		.ev_type        = EV_KEY,
+		.code           = KEY_BRIGHTNESSUP,
+		.bit            = EC_MKBP_BRI_UP,
+	},
+	{
+		.ev_type        = EV_KEY,
+		.code           = KEY_BRIGHTNESSDOWN,
+		.bit            = EC_MKBP_BRI_DOWN,
+	},
+	{
+		.ev_type        = EV_KEY,
+		.code           = KEY_SCREENLOCK,
+		.bit            = EC_MKBP_SCREEN_LOCK,
+	},
 
 	/* Switches */
 	{

include/linux/platform_data/cros_ec_commands.h

@@ -3471,6 +3471,9 @@ struct ec_response_get_next_event_v1 {
 #define EC_MKBP_VOL_UP		1
 #define EC_MKBP_VOL_DOWN	2
 #define EC_MKBP_RECOVERY	3
+#define EC_MKBP_BRI_UP		4
+#define EC_MKBP_BRI_DOWN	5
+#define EC_MKBP_SCREEN_LOCK	6
 
 /* Switches */
 #define EC_MKBP_LID_OPEN	0