Re: [PATCH 1/3] drm/dp: add helper for checking DP_ENHANCED_FRAME_CAP in DPCD

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On Fri, Oct 4, 2013 at 8:08 AM, Jani Nikula <jani.nikula@xxxxxxxxx> wrote:
> Signed-off-by: Jani Nikula <jani.nikula@xxxxxxxxx>

Patches 1 and 2 are:

Reviewed-by: Alex Deucher <alexander.deucher@xxxxxxx>


> ---
>  include/drm/drm_dp_helper.h |    7 +++++++
>  1 file changed, 7 insertions(+)
>
> diff --git a/include/drm/drm_dp_helper.h b/include/drm/drm_dp_helper.h
> index ae8dbfb..fdf58fa 100644
> --- a/include/drm/drm_dp_helper.h
> +++ b/include/drm/drm_dp_helper.h
> @@ -390,4 +390,11 @@ drm_dp_max_lane_count(u8 dpcd[DP_RECEIVER_CAP_SIZE])
>         return dpcd[DP_MAX_LANE_COUNT] & DP_MAX_LANE_COUNT_MASK;
>  }
>
> +static inline bool
> +drm_dp_enhanced_frame_cap(const u8 dpcd[DP_RECEIVER_CAP_SIZE])
> +{
> +       return dpcd[DP_DPCD_REV] >= 0x11 &&
> +               (dpcd[DP_MAX_LANE_COUNT] & DP_ENHANCED_FRAME_CAP);
> +}
> +
>  #endif /* _DRM_DP_HELPER_H_ */
> --
> 1.7.9.5
>
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