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drm/i915/dp: Add helper to get sink_format

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Common function to get the sink format for a given mode for DP.

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/20230427125605.487769-6-ankit.k.nautiyal@intel.com
This commit is contained in:
Ankit Nautiyal
2023-04-27 18:26:04 +05:30
committed by Ville Syrjälä
parent 5231567994
commit 5814227de1
1 changed files with 15 additions and 15 deletions
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30
drivers/gpu/drm/i915/display/intel_dp.c
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@@ -954,17 +954,25 @@ static int intel_dp_output_bpp(enum intel_output_format output_format, int bpp)
return bpp;
}
static enum intel_output_format
intel_dp_sink_format(struct intel_connector *connector,
const struct drm_display_mode *mode)
{
const struct drm_display_info *info = &connector->base.display_info;
if (drm_mode_is_420_only(info, mode))
return INTEL_OUTPUT_FORMAT_YCBCR420;
return INTEL_OUTPUT_FORMAT_RGB;
}
static int
intel_dp_mode_min_output_bpp(struct intel_connector *connector,
const struct drm_display_mode *mode)
{
const struct drm_display_info *info = &connector->base.display_info;
enum intel_output_format output_format, sink_format;
if (drm_mode_is_420_only(info, mode))
sink_format = INTEL_OUTPUT_FORMAT_YCBCR420;
else
sink_format = INTEL_OUTPUT_FORMAT_RGB;
sink_format = intel_dp_sink_format(connector, mode);
output_format = intel_dp_output_format(connector, sink_format);
@@ -1036,7 +1044,6 @@ intel_dp_mode_valid_downstream(struct intel_connector *connector,
struct intel_dp *intel_dp = intel_attached_dp(connector);
const struct drm_display_info *info = &connector->base.display_info;
enum drm_mode_status status;
bool ycbcr_420_only;
enum intel_output_format sink_format;
/* If PCON supports FRL MODE, check FRL bandwidth constraints */
@@ -1062,12 +1069,7 @@ intel_dp_mode_valid_downstream(struct intel_connector *connector,
target_clock > intel_dp->dfp.max_dotclock)
return MODE_CLOCK_HIGH;
ycbcr_420_only = drm_mode_is_420_only(info, mode);
if (ycbcr_420_only)
sink_format = INTEL_OUTPUT_FORMAT_YCBCR420;
else
sink_format = INTEL_OUTPUT_FORMAT_RGB;
sink_format = intel_dp_sink_format(connector, mode);
/* Assume 8bpc for the DP++/HDMI/DVI TMDS clock check */
status = intel_dp_tmds_clock_valid(intel_dp, target_clock,
@@ -2188,10 +2190,8 @@ intel_dp_compute_output_format(struct intel_encoder *encoder,
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->sink_format = INTEL_OUTPUT_FORMAT_RGB;
} else if (ycbcr_420_only) {
crtc_state->sink_format = INTEL_OUTPUT_FORMAT_YCBCR420;
} else {
crtc_state->sink_format = INTEL_OUTPUT_FORMAT_RGB;
crtc_state->sink_format = intel_dp_sink_format(connector, adjusted_mode);
}
crtc_state->output_format = intel_dp_output_format(connector, crtc_state->sink_format);