From: Ankit Nautiyal <ankit.k.nautiyal@xxxxxxxxx>
Add helper function to check if the DP sink supports DSC with the given
output format.
Signed-off-by: Ankit Nautiyal <ankit.k.nautiyal@xxxxxxxxx>
---
include/drm/display/drm_dp_helper.h | 7 +++++++
1 file changed, 7 insertions(+)
diff --git a/include/drm/display/drm_dp_helper.h b/include/drm/display/drm_dp_helper.h
index ab55453f2d2c..d529d0254b68 100644
--- a/include/drm/display/drm_dp_helper.h
+++ b/include/drm/display/drm_dp_helper.h
@@ -194,6 +194,13 @@ drm_dp_dsc_sink_max_slice_width(const u8 dsc_dpcd[DP_DSC_RECEIVER_CAP_SIZE])
DP_DSC_SLICE_WIDTH_MULTIPLIER;
}
+/* Check if sink supports DSC with given output format */
+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
