[03/12] drm/i915: Fix AVI infoframe quantization range for YCbCr output
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Message ID 20190718145053.25808-4-ville.syrjala@linux.intel.com
State New
Headers show
Series
  • drm/i915: YCbCr output fixes and prep work for YCbCr 4:4:4 output
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Commit Message

Ville Syrjälä July 18, 2019, 2:50 p.m. UTC
From: Ville Syrjälä <ville.syrjala@linux.intel.com>

We're configuring the AVI infoframe quantization range bits as if
we're always transmitting RGB pixels. Let's fix this so that we
correctly indicate limited range YCC quantization range when
transmitting YCbCr instead.

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
---
 drivers/gpu/drm/i915/display/intel_hdmi.c | 15 ++++++++++-----
 1 file changed, 10 insertions(+), 5 deletions(-)

Patch
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diff --git a/drivers/gpu/drm/i915/display/intel_hdmi.c b/drivers/gpu/drm/i915/display/intel_hdmi.c
index 9bf28de10401..b8100cf21dd0 100644
--- a/drivers/gpu/drm/i915/display/intel_hdmi.c
+++ b/drivers/gpu/drm/i915/display/intel_hdmi.c
@@ -724,11 +724,16 @@  intel_hdmi_compute_avi_infoframe(struct intel_encoder *encoder,
 
 	drm_hdmi_avi_infoframe_colorspace(frame, conn_state);
 
-	drm_hdmi_avi_infoframe_quant_range(frame, connector,
-					   adjusted_mode,
-					   crtc_state->limited_color_range ?
-					   HDMI_QUANTIZATION_RANGE_LIMITED :
-					   HDMI_QUANTIZATION_RANGE_FULL);
+	if (crtc_state->output_format == INTEL_OUTPUT_FORMAT_RGB) {
+		drm_hdmi_avi_infoframe_quant_range(frame, connector,
+						   adjusted_mode,
+						   crtc_state->limited_color_range ?
+						   HDMI_QUANTIZATION_RANGE_LIMITED :
+						   HDMI_QUANTIZATION_RANGE_FULL);
+	} else {
+		frame->quantization_range = HDMI_QUANTIZATION_RANGE_DEFAULT;
+		frame->ycc_quantization_range = HDMI_YCC_QUANTIZATION_RANGE_LIMITED;
+	}
 
 	drm_hdmi_avi_infoframe_content_type(frame, conn_state);