input: cros_ec_keyb: Add Tablet Mode switch

Add switch to report tablet mode.
Signed-off-by: Gwendal Grignou <gwendal@chromium.org>
Signed-off-by: Enric Balletbo Serra <enric.balletbo@collabora.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>

drivers/input/keyboard/cros_ec_keyb.c

@@ -111,6 +111,11 @@ static const struct cros_ec_bs_map cros_ec_keyb_bs[] = {
 		.bit		= EC_MKBP_LID_OPEN,
 		.inverted	= true,
 	},
+	{
+		.ev_type	= EV_SW,
+		.code		= SW_TABLET_MODE,
+		.bit		= EC_MKBP_TABLET_MODE,
+	},
 };
 
 /*

include/linux/mfd/cros_ec_commands.h

@@ -2068,6 +2068,7 @@ struct ec_response_get_next_event {
 
 /* Switches */
 #define EC_MKBP_LID_OPEN	0
+#define EC_MKBP_TABLET_MODE	1
 
 /*****************************************************************************/
 /* Temperature sensor commands */