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drm/edid: fix color format when parsing hdmi deep color info

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According to HDMI spec 1.4, YCbCr422 is also 36-bit mode, so
we remove the override of color format when parsing hdmi deep
color info. And record hdmi YCbCr444 deep color info in
edid_hdmi_dc_modes.

The edid_hdmi_dc_modes should be clean up when parsing EDID.

Change-Id: Ic5bd3ff5e50b37f04ed4a0688be68bd8259e5af0
Signed-off-by: Zheng Yang <zhengyang@rock-chips.com>
This commit is contained in:
Zheng Yang
2017-06-29 09:12:18 +08:00
committed by Huang, Tao
parent 5cb9cc3e1b
commit a1af913eb2
1 changed files with 2 additions and 7 deletions
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9
drivers/gpu/drm/drm_edid.c
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@@ -4183,15 +4183,9 @@ static void drm_parse_hdmi_deep_color_info(struct drm_connector *connector,
connector->name, dc_bpc);
info->bpc = dc_bpc;
/*
* Deep color support mandates RGB444 support for all video
* modes and forbids YCRCB422 support for all video modes per
* HDMI 1.3 spec.
*/
info->color_formats = DRM_COLOR_FORMAT_RGB444;
/* YCRCB444 is optional according to spec. */
if (hdmi[6] & DRM_EDID_HDMI_DC_Y444) {
info->color_formats |= DRM_COLOR_FORMAT_YCRCB444;
info->edid_hdmi_dc_modes |= DRM_EDID_HDMI_DC_Y444;
DRM_DEBUG("%s: HDMI sink does YCRCB444 in deep color.\n",
connector->name);
}
@@ -4274,6 +4268,7 @@ static void drm_add_display_info(struct drm_connector *connector,
info->cea_rev = 0;
info->max_tmds_clock = 0;
info->dvi_dual = false;
info->edid_hdmi_dc_modes = 0;
memset(&info->hdmi, 0, sizeof(info->hdmi));