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drm/i915: Force RGB output for DVI sink

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YCbCr output requires infoframes and whatnot, so don't allow
it when dealing with a DVI sink (or a HDMI sink we wish to
treat as DVI).

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20221107194604.15227-3-ville.syrjala@linux.intel.com
Reviewed-by: Jani Nikula <jani.nikula@intel.com>
This commit is contained in:
Ville Syrjälä 2022-11-07 21:46:01 +02:00
parent 95067dc648
commit 390a7d305c
1 changed files with 8 additions and 3 deletions
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11
drivers/gpu/drm/i915/display/intel_hdmi.c
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@ -2191,9 +2191,13 @@ static bool intel_hdmi_has_audio(struct intel_encoder *encoder,
}
static enum intel_output_format
intel_hdmi_output_format(struct intel_connector *connector,
intel_hdmi_output_format(const struct intel_crtc_state *crtc_state,
struct intel_connector *connector,
bool ycbcr_420_output)
{
if (!crtc_state->has_hdmi_sink)
return INTEL_OUTPUT_FORMAT_RGB;
if (connector->base.ycbcr_420_allowed && ycbcr_420_output)
return INTEL_OUTPUT_FORMAT_YCBCR420;
else
@ -2212,7 +2216,8 @@ static int intel_hdmi_compute_output_format(struct intel_encoder *encoder,
bool ycbcr_420_only = drm_mode_is_420_only(info, adjusted_mode);
int ret;
crtc_state->output_format = intel_hdmi_output_format(connector, ycbcr_420_only);
crtc_state->output_format =
intel_hdmi_output_format(crtc_state, connector, ycbcr_420_only);
if (ycbcr_420_only && !intel_hdmi_is_ycbcr420(crtc_state)) {
drm_dbg_kms(&i915->drm,
@ -2227,7 +2232,7 @@ static int intel_hdmi_compute_output_format(struct intel_encoder *encoder,
!drm_mode_is_420_also(info, adjusted_mode))
return ret;
crtc_state->output_format = intel_hdmi_output_format(connector, true);
crtc_state->output_format = intel_hdmi_output_format(crtc_state, connector, true);
ret = intel_hdmi_compute_clock(encoder, crtc_state, respect_downstream_limits);
}