From: Mario Kleiner <mario.kleiner.de@gmail.com>
Date: Thu, 5 Jun 2014 13:52:10 +0000 (-0400)
Subject: drm/edid: Store all supported hdmi deep color modes in drm_display_info
X-Git-Url: http://drtracing.org/?a=commitdiff_plain;h=5d02626d3167cd4214bf611362e08dfd1e98c62e;p=deliverable%2Flinux.git

drm/edid: Store all supported hdmi deep color modes in drm_display_info

HDMI deep color setup must know which modes are supported if
it needs to degrade gracefully, as only 12 bpc / dc_36 is
guaranteed, but 10 bpc / dc_30 is optional. The maximum bpc
is not sufficient for this.

Signed-off-by: Mario Kleiner <mario.kleiner.de@gmail.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
---

diff --git a/drivers/gpu/drm/drm_edid.c b/drivers/gpu/drm/drm_edid.c
index 7be21781d3bd..dfa9769b26b5 100644
--- a/drivers/gpu/drm/drm_edid.c
+++ b/drivers/gpu/drm/drm_edid.c
@@ -3471,18 +3471,21 @@ static bool drm_assign_hdmi_deep_color_info(struct edid *edid,
 
 			if (hdmi[6] & DRM_EDID_HDMI_DC_30) {
 				dc_bpc = 10;
+				info->edid_hdmi_dc_modes |= DRM_EDID_HDMI_DC_30;
 				DRM_DEBUG("%s: HDMI sink does deep color 30.\n",
 						  connector->name);
 			}
 
 			if (hdmi[6] & DRM_EDID_HDMI_DC_36) {
 				dc_bpc = 12;
+				info->edid_hdmi_dc_modes |= DRM_EDID_HDMI_DC_36;
 				DRM_DEBUG("%s: HDMI sink does deep color 36.\n",
 						  connector->name);
 			}
 
 			if (hdmi[6] & DRM_EDID_HDMI_DC_48) {
 				dc_bpc = 16;
+				info->edid_hdmi_dc_modes |= DRM_EDID_HDMI_DC_48;
 				DRM_DEBUG("%s: HDMI sink does deep color 48.\n",
 						  connector->name);
 			}
diff --git a/include/drm/drm_crtc.h b/include/drm/drm_crtc.h
index a7fac5686915..251b75e6bf7a 100644
--- a/include/drm/drm_crtc.h
+++ b/include/drm/drm_crtc.h
@@ -121,6 +121,9 @@ struct drm_display_info {
 	enum subpixel_order subpixel_order;
 	u32 color_formats;
 
+	/* Mask of supported hdmi deep color modes */
+	u8 edid_hdmi_dc_modes;
+
 	u8 cea_rev;
 };