[PATCH 5/8] drm/i915/dp: Use sink_format in dp_is_ycbcr420

[Ankit Nautiyal]

Use the new crtc_state member sink_format to check if DP DFP will use
YCBCR420.
The earlier intel_dp->dfp members are not required as decision to use
color format conversion by the PCON is computed and stored in
crtc_state. Also drop the intel_dp argument in the helper function.

Signed-off-by: Ankit Nautiyal <ankit.k.nautiyal at intel.com>
---
 drivers/gpu/drm/i915/display/intel_dp.c | 13 +++++--------
 1 file changed, 5 insertions(+), 8 deletions(-)

diff --git a/drivers/gpu/drm/i915/display/intel_dp.c b/drivers/gpu/drm/i915/display/intel_dp.c
index dec2bbb435b1..6f9856f560c6 100644
--- a/drivers/gpu/drm/i915/display/intel_dp.c
+++ b/drivers/gpu/drm/i915/display/intel_dp.c
@@ -1177,19 +1177,16 @@ static bool intel_dp_supports_dsc(struct intel_dp *intel_dp,
 		drm_dp_sink_supports_dsc(intel_dp->dsc_dpcd);
 }
 
-static bool intel_dp_is_ycbcr420(struct intel_dp *intel_dp,
-				 const struct intel_crtc_state *crtc_state)
+static bool intel_dp_is_ycbcr420(const struct intel_crtc_state *crtc_state)
 {
-	return crtc_state->output_format == INTEL_OUTPUT_FORMAT_YCBCR420 ||
-		(crtc_state->output_format == INTEL_OUTPUT_FORMAT_YCBCR444 &&
-		 intel_dp->dfp.ycbcr_444_to_420);
+	return crtc_state->sink_format == INTEL_OUTPUT_FORMAT_YCBCR420;
 }
 
 static int intel_dp_hdmi_compute_bpc(struct intel_dp *intel_dp,
 				     const struct intel_crtc_state *crtc_state,
 				     int bpc, bool respect_downstream_limits)
 {
-	bool ycbcr420_output = intel_dp_is_ycbcr420(intel_dp, crtc_state);
+	bool ycbcr420_output = intel_dp_is_ycbcr420(crtc_state);
 	int clock = crtc_state->hw.adjusted_mode.crtc_clock;
 
 	/*
@@ -1986,7 +1983,7 @@ intel_dp_compute_output_format(struct intel_encoder *encoder,
 
 	crtc_state->output_format = intel_dp_output_format(connector, ycbcr_420_only);
 
-	if (ycbcr_420_only && !intel_dp_is_ycbcr420(intel_dp, crtc_state)) {
+	if (ycbcr_420_only && !intel_dp_is_ycbcr420(crtc_state)) {
 		drm_dbg_kms(&i915->drm,
 			    "YCbCr 4:2:0 mode but YCbCr 4:2:0 output not possible. Falling back to RGB.\n");
 		crtc_state->output_format = INTEL_OUTPUT_FORMAT_RGB;
@@ -2001,7 +1998,7 @@ intel_dp_compute_output_format(struct intel_encoder *encoder,
 	ret = intel_dp_compute_link_config(encoder, crtc_state, conn_state,
 					   respect_downstream_limits);
 	if (ret) {
-		if (intel_dp_is_ycbcr420(intel_dp, crtc_state) ||
+		if (intel_dp_is_ycbcr420(crtc_state) ||
 		    !connector->base.ycbcr_420_allowed ||
 		    !drm_mode_is_420_also(info, adjusted_mode))
 			return ret;
-- 
2.25.1