From: Swati Sharma <swati2.sharma@xxxxxxxxx>
If force_dsc_ycbcr420_en is set through debugfs allow DSC iff
output_format is INTEL_OUTPUT_FORMAT_YCBCR420.
Signed-off-by: Swati Sharma <swati2.sharma@xxxxxxxxx>
---
drivers/gpu/drm/i915/display/intel_dp.c | 4 ++++
1 file changed, 4 insertions(+)
diff --git a/drivers/gpu/drm/i915/display/intel_dp.c b/drivers/gpu/drm/i915/display/intel_dp.c
index b7b7b40ce7ff..4d2314c10d2b 100644
--- a/drivers/gpu/drm/i915/display/intel_dp.c
+++ b/drivers/gpu/drm/i915/display/intel_dp.c
@@ -1507,6 +1507,10 @@ static int intel_dp_dsc_compute_config(struct intel_dp *intel_dp,
if (!intel_dp_dsc_supports_format(intel_dp, pipe_config->output_format))
return -EINVAL;
+ if (intel_dp->force_dsc_ycbcr420_en &&
+ pipe_config->output_format != INTEL_OUTPUT_FORMAT_YCBCR420)
+ return -EINVAL;
+
pipe_bpp = intel_dp_dsc_compute_bpp(intel_dp, conn_state->max_requested_bpc);
if (intel_dp->force_dsc_bpc) {
--
2.25.1
