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Commit ebec9a7b authored by Jesse Barnes's avatar Jesse Barnes Committed by Keith Packard
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drm: track CEA version number if present 



Drivers need to know the CEA version number in addition to other display
info (like whether the display is an HDMI sink) before enabling certain
features.  So track the CEA version number in the display info
structure.

Signed-off-by: default avatarJesse Barnes <jbarnes@virtuousgeek.org>
Signed-off-by: default avatarKeith Packard <keithp@keithp.com>
parent 4e20fa65

drivers/gpu/drm/drm_edid.c

+9 −0
Original line number Diff line number Diff line
@@ -1439,6 +1439,8 @@ EXPORT_SYMBOL(drm_detect_monitor_audio); 
static void drm_add_display_info(struct edid *edid,

				 struct drm_display_info *info)

{

	u8 *edid_ext;



	info->width_mm = edid->width_cm * 10;

	info->height_mm = edid->height_cm * 10;
@@ -1483,6 +1485,13 @@ static void drm_add_display_info(struct edid *edid, 
		info->color_formats = DRM_COLOR_FORMAT_YCRCB444;

	if (info->color_formats & DRM_EDID_FEATURE_RGB_YCRCB422)

		info->color_formats = DRM_COLOR_FORMAT_YCRCB422;



	/* Get data from CEA blocks if present */

	edid_ext = drm_find_cea_extension(edid);

	if (!edid_ext)

		return;



	info->cea_rev = edid_ext[1];

}



/**

include/drm/drm_crtc.h

+2 −0
Original line number Diff line number Diff line
@@ -205,6 +205,8 @@ struct drm_display_info { 
	enum subpixel_order subpixel_order;

	u32 color_formats;



	u8 cea_rev;



	char *raw_edid; /* if any */

};