From 9559c0d13b6b35abc2659bdd3024849d552e3c4e Mon Sep 17 00:00:00 2001
From: Uma Shankar <uma.shankar@intel.com>
Date: Tue, 1 Dec 2020 02:17:27 +0530
Subject: drm/i915/display: Fixes quantization range for YCbCr output
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit
This patch fixes the quantization range for YCbCr output on
Lspcon based devices.
v2: Re-phrased the description and added Ville's Rb.
Signed-off-by: Uma Shankar <uma.shankar@intel.com>
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20201130204738.2443-5-uma.shankar@intel.com
---
drivers/gpu/drm/i915/display/intel_lspcon.c | 17 +++++++++++------
1 file changed, 11 insertions(+), 6 deletions(-)
(limited to 'drivers/gpu/drm/i915/display/intel_lspcon.c')
diff --git a/drivers/gpu/drm/i915/display/intel_lspcon.c b/drivers/gpu/drm/i915/display/intel_lspcon.c
index f98891f058da..7cb65e0f241e 100644
--- a/drivers/gpu/drm/i915/display/intel_lspcon.c
+++ b/drivers/gpu/drm/i915/display/intel_lspcon.c
@@ -523,12 +523,17 @@ void lspcon_set_infoframes(struct intel_encoder *encoder,
else
frame.avi.colorspace = HDMI_COLORSPACE_RGB;
- drm_hdmi_avi_infoframe_quant_range(&frame.avi,
- conn_state->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.avi,
+ conn_state->connector,
+ adjusted_mode,
+ crtc_state->limited_color_range ?
+ HDMI_QUANTIZATION_RANGE_LIMITED :
+ HDMI_QUANTIZATION_RANGE_FULL);
+ } else {
+ frame.avi.quantization_range = HDMI_QUANTIZATION_RANGE_DEFAULT;
+ frame.avi.ycc_quantization_range = HDMI_YCC_QUANTIZATION_RANGE_LIMITED;
+ }
ret = hdmi_infoframe_pack(&frame, buf, sizeof(buf));
if (ret < 0) {
--
cgit