diff mbox series

[v5,7/8] drm/i915/dsc: Allow DSC only with YCbCr420 format when forced from debugfs

Message ID 20221107073432.1352991-8-suraj.kandpal@intel.com (mailing list archive)
State New, archived
Headers show
Series [v5,1/8] drm/dp_helper: Add helper to check if the sink supports given format with DSC | expand

Commit Message

Kandpal, Suraj Nov. 7, 2022, 7:34 a.m. UTC 
From: Swati Sharma <swati2.sharma@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@intel.com>
---
 drivers/gpu/drm/i915/display/intel_dp.c | 4 ++++
 1 file changed, 4 insertions(+)
diff mbox series

Patch

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) {