| Message ID | 20230222053153.3658345-2-suraj.kandpal@intel.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | Enable YCbCr420 format for VDSC | expand |
> -----Original Message----- > From: Kandpal, Suraj <suraj.kandpal@intel.com> > Sent: Wednesday, February 22, 2023 11:02 AM > To: dri-devel@lists.freedesktop.org; intel-gfx@lists.freedesktop.org > Cc: Shankar, Uma <uma.shankar@intel.com>; Nautiyal, Ankit K > <ankit.k.nautiyal@intel.com> > Subject: [PATCH 1/7] drm/dp_helper: Add helper to check DSC support with given > o/p format > > From: Ankit Nautiyal <ankit.k.nautiyal@intel.com> > > Add helper to check if the DP sink supports DSC with the given o/p format. > > v2: Add documentation for the helper. (Uma Shankar) > > Signed-off-by: Ankit Nautiyal <ankit.k.nautiyal@intel.com> > --- > include/drm/display/drm_dp_helper.h | 13 +++++++++++++ > 1 file changed, 13 insertions(+) > > diff --git a/include/drm/display/drm_dp_helper.h > b/include/drm/display/drm_dp_helper.h > index ab55453f2d2c..41da8eb4801e 100644 > --- a/include/drm/display/drm_dp_helper.h > +++ b/include/drm/display/drm_dp_helper.h > @@ -194,6 +194,19 @@ drm_dp_dsc_sink_max_slice_width(const u8 > dsc_dpcd[DP_DSC_RECEIVER_CAP_SIZE]) > DP_DSC_SLICE_WIDTH_MULTIPLIER; > } > > +/* Use /** instead of /* With that fixed, this is Reviewed-by: Uma Shankar <uma.shankar@intel.com> > + * drm_dp_dsc_sink_supports_format() - check if sink supports DSC with > +given output format > + * @dsc_dpcd : DSC-capability DPCDs of the sink > + * @output_format: output_format which is to be checked > + * > + * Returns true if the sink supports DSC with the given output_format, false > otherwise. > + */ > +static inline bool > +drm_dp_dsc_sink_supports_format(const u8 > +dsc_dpcd[DP_DSC_RECEIVER_CAP_SIZE], u8 output_format) { > + return dsc_dpcd[DP_DSC_DEC_COLOR_FORMAT_CAP - DP_DSC_SUPPORT] > & > +output_format; } > + > /* Forward Error Correction Support on DP 1.4 */ static inline bool > drm_dp_sink_supports_fec(const u8 fec_capable) > -- > 2.25.1
diff --git a/include/drm/display/drm_dp_helper.h b/include/drm/display/drm_dp_helper.h index ab55453f2d2c..41da8eb4801e 100644 --- a/include/drm/display/drm_dp_helper.h +++ b/include/drm/display/drm_dp_helper.h @@ -194,6 +194,19 @@ drm_dp_dsc_sink_max_slice_width(const u8 dsc_dpcd[DP_DSC_RECEIVER_CAP_SIZE]) DP_DSC_SLICE_WIDTH_MULTIPLIER; } +/* + * drm_dp_dsc_sink_supports_format() - check if sink supports DSC with given output format + * @dsc_dpcd : DSC-capability DPCDs of the sink + * @output_format: output_format which is to be checked + * + * Returns true if the sink supports DSC with the given output_format, false otherwise. + */ +static inline bool +drm_dp_dsc_sink_supports_format(const u8 dsc_dpcd[DP_DSC_RECEIVER_CAP_SIZE], u8 output_format) +{ + return dsc_dpcd[DP_DSC_DEC_COLOR_FORMAT_CAP - DP_DSC_SUPPORT] & output_format; +} + /* Forward Error Correction Support on DP 1.4 */ static inline bool drm_dp_sink_supports_fec(const u8 fec_capable)