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drm/i915: Extract intel_hdmi_bpc_possible() 

Extract intel_hdmi_bpc_possible() from intel_hdmi_deep_color_possible()
so that we can reuse it for mode validation.

Cc: Werner Sembach <wse@tuxedocomputers.com>
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20210511160532.21446-2-ville.syrjala@linux.intel.com
Reviewed-by: José Roberto de Souza <jose.souza@intel.com>
This commit is contained in:
Ville Syrjälä 2021-05-11 19:05:27 +03:00
parent 2fdb6a5ef6
commit 06e0df24fc
1 changed files with 27 additions and 19 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

46
drivers/gpu/drm/i915/display/intel_hdmi.c
View File

@ -1865,6 +1865,31 @@ static int intel_hdmi_port_clock(int clock, int bpc)
return clock * bpc / 8;
}
static bool intel_hdmi_bpc_possible(struct drm_connector *connector,
int bpc, bool has_hdmi_sink, bool ycbcr420_output)
{
const struct drm_display_info *info = &connector->display_info;
const struct drm_hdmi_info *hdmi = &info->hdmi;
switch (bpc) {
case 12:
if (ycbcr420_output)
return hdmi->y420_dc_modes & DRM_EDID_YCBCR420_DC_36;
else
return info->edid_hdmi_dc_modes & DRM_EDID_HDMI_DC_36;
case 10:
if (ycbcr420_output)
return hdmi->y420_dc_modes & DRM_EDID_YCBCR420_DC_30;
else
return info->edid_hdmi_dc_modes & DRM_EDID_HDMI_DC_30;
case 8:
return true;
default:
MISSING_CASE(bpc);
return false;
}
}
static enum drm_mode_status
intel_hdmi_mode_clock_valid(struct intel_hdmi *hdmi, int clock, bool has_hdmi_sink)
{
@ -1954,28 +1979,11 @@ bool intel_hdmi_deep_color_possible(const struct intel_crtc_state *crtc_state,
return false;
for_each_new_connector_in_state(state, connector, connector_state, i) {
const struct drm_display_info *info = &connector->display_info;
if (connector_state->crtc != crtc_state->uapi.crtc)
continue;
if (ycbcr420_output) {
const struct drm_hdmi_info *hdmi = &info->hdmi;
if (bpc == 12 && !(hdmi->y420_dc_modes &
DRM_EDID_YCBCR420_DC_36))
return false;
else if (bpc == 10 && !(hdmi->y420_dc_modes &
DRM_EDID_YCBCR420_DC_30))
return false;
} else {
if (bpc == 12 && !(info->edid_hdmi_dc_modes &
DRM_EDID_HDMI_DC_36))
return false;
else if (bpc == 10 && !(info->edid_hdmi_dc_modes &
DRM_EDID_HDMI_DC_30))
return false;
}
if (!intel_hdmi_bpc_possible(connector, bpc, has_hdmi_sink, ycbcr420_output))
return false;
}
return true;