[Intel-gfx] [PATCH v6 8/9] drm/i915/dsc: Allow DSC only with YCbCr420 format when forced from debugfs

Suraj Kandpal suraj.kandpal at intel.com
Wed Jan 11 05:38:36 UTC 2023


From: Swati Sharma <swati2.sharma at intel.com>

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 at intel.com>
---
 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 2adac42e585d..666ee85dd23a 100644
--- a/drivers/gpu/drm/i915/display/intel_dp.c
+++ b/drivers/gpu/drm/i915/display/intel_dp.c
@@ -1528,6 +1528,10 @@ 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;
+
 	if (compute_pipe_bpp)
 		pipe_bpp = intel_dp_dsc_compute_bpp(intel_dp, conn_state->max_requested_bpc);
 	else
-- 
2.25.1



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