On Wed, Jul 27, 2016 at 6:07 AM, Chris Zhong <zyw at rock-chips.com> wrote:
> 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 at rock-chips.com>
> Signed-off-by: Chanwoo Choi <cw00.choi at samsung.com>
Reviewed-by: Guenter Roeck <groeck at chromium.org>
> ---
>
> Changes in v7: None
> Changes in v6: None
> Changes in v5: None
> Changes in v4: None
> Changes in v3: None
> Changes in v2: None
> Changes in v1: None
>
> drivers/extcon/extcon.c | 5 +++++
> include/linux/extcon.h | 8 +++++++-
> 2 files changed, 12 insertions(+), 1 deletion(-)
>
> diff --git a/drivers/extcon/extcon.c b/drivers/extcon/extcon.c
> index 68890bb..6c7488a 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] = {
> diff --git a/include/linux/extcon.h b/include/linux/extcon.h
> index f686204..9670d3f 100644
> --- a/include/linux/extcon.h
> +++ b/include/linux/extcon.h
> @@ -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
> @@ -106,12 +107,17 @@
> * @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_ID 0
> #define EXTCON_PROP_USB_VBUS 1
> +#define EXTCON_PROP_USB_TYPEC_POLARITY 2
>
> #define EXTCON_PROP_USB_MIN 0
> -#define EXTCON_PROP_USB_MAX 1
> +#define EXTCON_PROP_USB_MAX 2
> #define EXTCON_PROP_USB_CNT (EXTCON_PROP_USB_MAX - EXTCON_PROP_USB_MIN + 1)
>
> /* Properties of EXTCON_TYPE_CHG. */
> --
> 2.6.3
>
