Merge tag 'drm-misc-fixes-2023-05-11' of git://anongit.freedesktop.org/drm/drm-misc...

[sfrench/cifs-2.6.git] / include / drm / display / drm_dp_helper.h

diff --git a/include/drm/display/drm_dp_helper.h b/include/drm/display/drm_dp_helper.h
index ade9df59e156aab39018996319889c29de316385..86f24a759268ae0ac313a6d7ed7a1a0892e38084 100644 (file)
--- a/include/drm/display/drm_dp_helper.h
+++ b/include/drm/display/drm_dp_helper.h
@@ -193,6 +193,19 @@ 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)