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

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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>
This commit is contained in:
Chris Zhong 2016-07-22 01:13:02 +09:00 committed by Kishon Vijay Abraham I
parent a580982f08
commit 2f25140601
2 changed files with 12 additions and 1 deletions
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5
drivers/extcon/extcon.c
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@ -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] = {

8
include/linux/extcon.h
View File

@ -69,6 +69,7 @@
#define EXTCON_DISP_MHL 41 /* Mobile High-Definition Link */
#define EXTCON_DISP_DVI 42 /* Digital Visual Interface */
#define EXTCON_DISP_VGA 43 /* Video Graphics Array */
#define EXTCON_DISP_DP 44 /* Display Port */
/* Miscellaneous external connector */
#define EXTCON_DOCK 60
@ -102,11 +103,16 @@
* @type: integer (intval)
* @value: 0 (low) or 1 (high)
* @default: 0 (low)
* - EXTCON_PROP_USB_TYPEC_POLARITY
* @type: integer (intval)
* @value: 0 (normal) or 1 (flip)
* @default: 0 (normal)
*/
#define EXTCON_PROP_USB_VBUS 0
#define EXTCON_PROP_USB_TYPEC_POLARITY 1
#define EXTCON_PROP_USB_MIN 0
#define EXTCON_PROP_USB_MAX 0
#define EXTCON_PROP_USB_MAX 1
#define EXTCON_PROP_USB_CNT (EXTCON_PROP_USB_MAX - EXTCON_PROP_USB_MIN + 1)
/* Properties of EXTCON_TYPE_CHG. */