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drm/i915/dp: Configure PCON for conversion of output_format to YCbCr444

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Handle the case with DP to HDMI PCON, where sink_format is set to YCbCr444.
In that case PCON is required to be configured to convert from given
output_format to YCbCR444.

v2: Drop drm_WARN for invalid case, let MISSING_CASE catch it. (Ville)

Signed-off-by: Ankit Nautiyal <ankit.k.nautiyal@intel.com>
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20230427125605.487769-4-ankit.k.nautiyal@intel.com
This commit is contained in:
Ankit Nautiyal 2023-04-27 18:26:02 +05:30 committed by Ville Syrjälä
parent 68910c2a90
commit 9cca0fe329
1 changed files with 11 additions and 0 deletions
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11
drivers/gpu/drm/i915/display/intel_dp.c
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@ -2923,6 +2923,17 @@ void intel_dp_configure_protocol_converter(struct intel_dp *intel_dp,
MISSING_CASE(crtc_state->output_format);
break;
}
} else if (crtc_state->sink_format == INTEL_OUTPUT_FORMAT_YCBCR444) {
switch (crtc_state->output_format) {
case INTEL_OUTPUT_FORMAT_YCBCR444:
break;
case INTEL_OUTPUT_FORMAT_RGB:
rgb_to_ycbcr = true;
break;
default:
MISSING_CASE(crtc_state->output_format);
break;
}
}
tmp = ycbcr444_to_420 ? DP_CONVERSION_TO_YCBCR420_ENABLE : 0;