extcon: Add EXTCON_DISP_DP and the property for USB Type-C

Add EXTCON_DISP_DP for the Display external connector. For Type-C
connector the DisplayPort can work as an Alternate Mode(VESA DisplayPort
Alt Mode on USB Type-C Standard). The Type-C support both normal
and flipped orientation, so add a property to extcon.

Signed-off-by: Chris Zhong <zyw@rock-chips.com>
Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
Tested-by: Chris Zhong <zyw@rock-chips.com>
Tested-by: Guenter Roeck <groeck@chromium.org>
Reviewed-by: Guenter Roeck <groeck@chromium.org>

1 files changed, 5 insertions, 0 deletions

diff --git a/drivers/extcon/extcon.c b/drivers/extcon/extcon.c
index 8fde4befaa51..a0a1eea18727 100644
--- a/drivers/extcon/extcon.c
+++ b/drivers/extcon/extcon.c
@@ -157,6 +157,11 @@ struct __extcon_info {
                 .id = EXTCON_DISP_VGA,
                 .name = "VGA",
         },
+        [EXTCON_DISP_DP] = {
+                .type = EXTCON_TYPE_DISP | EXTCON_TYPE_USB,
+                .id = EXTCON_DISP_DP,
+                .name = "DP",
+        },
 
         /* Miscellaneous external connector */
         [EXTCON_DOCK] = {