[Intel-gfx] [PATCH 1/2] drm/dp: add extended receiver capability field present bit

[Rodrigo Vivi]

On Tue, Jul 17, 2018 at 02:49:38PM -0700, matthew.s.atwood at intel.com wrote:
> From: Matt Atwood <matthew.s.atwood at intel.com>
> 
> This bit was added to DP Training Aux RD interval sometime between DP
> 1.2 and DP 1.3. Via description of the spec this field indicates the
> panels true capabilities are described in DPCD address space 02200h
> through 022FFh.
> 
> Signed-off-by: Matt Atwood <matthew.s.atwood at intel.com>
> ---
>  include/drm/drm_dp_helper.h | 5 +++--
>  1 file changed, 3 insertions(+), 2 deletions(-)
> 
> diff --git a/include/drm/drm_dp_helper.h b/include/drm/drm_dp_helper.h
> index c01564991a9f..757bd5913f3d 100644
> --- a/include/drm/drm_dp_helper.h
> +++ b/include/drm/drm_dp_helper.h
> @@ -123,8 +123,9 @@
>  # define DP_FRAMING_CHANGE_CAP		    (1 << 1)
>  # define DP_DPCD_DISPLAY_CONTROL_CAPABLE     (1 << 3) /* edp v1.2 or higher */
>  
> -#define DP_TRAINING_AUX_RD_INTERVAL         0x00e   /* XXX 1.2? */
> -# define DP_TRAINING_AUX_RD_MASK            0x7F    /* XXX 1.2? */
> +#define DP_TRAINING_AUX_RD_INTERVAL             0x00e   /* XXX 1.2? */
> +# define DP_TRAINING_AUX_RD_MASK                0x7F    /* XXX 1.2? */
> +# define DP_EXTENDED_RECEIVER_CAP_FIELD_PRESENT (1 << 7)/* XXX 1.2? */

I couldn't find this on 1.2 version. So 1.3?!

>  
>  #define DP_ADAPTER_CAP			    0x00f   /* 1.2 */
>  # define DP_FORCE_LOAD_SENSE_CAP	    (1 << 0)
> -- 
> 2.17.1
> 
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