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Commit ebb177d2 authored by Dave Airlie's avatar Dave Airlie
Browse files

drm/edid: fixup detailed timings like the X server. 



this syncs the versioning check with the code the X server uses.

Reported-by: default avatarAnssi Hannula <anssi.hannula@iki.fi>
Signed-off-by: default avatarDave Airlie <airlied@redhat.com>
parent 616b8434

drivers/gpu/drm/drm_edid.c

+34 −38
Original line number Diff line number Diff line
@@ -502,25 +502,9 @@ static int add_detailed_info(struct drm_connector *connector, 
		struct detailed_non_pixel *data = &timing->data.other_data;

		struct drm_display_mode *newmode;



		/* EDID up to and including 1.2 may put monitor info here */

		if (edid->version == 1 && edid->revision < 3)

			continue;



		/* Detailed mode timing */

		if (timing->pixel_clock) {

			newmode = drm_mode_detailed(dev, edid, timing, quirks);

			if (!newmode)

				continue;



			/* First detailed mode is preferred */

			if (i == 0 && (edid->features & DRM_EDID_FEATURE_PREFERRED_TIMING))

				newmode->type |= DRM_MODE_TYPE_PREFERRED;

			drm_mode_probed_add(connector, newmode);



			modes++;

			continue;

		}



		/* X server check is version 1.1 or higher */

		if (edid->version == 1 && edid->revision >= 1 &&

		    !timing->pixel_clock) {

			/* Other timing or info */

			switch (data->type) {

			case EDID_DETAIL_MONITOR_SERIAL:
@@ -551,6 +535,18 @@ static int add_detailed_info(struct drm_connector *connector, 
			default:

				break;

			}

		} else {

			newmode = drm_mode_detailed(dev, edid, timing, quirks);

			if (!newmode)

				continue;



			/* First detailed mode is preferred */

			if (i == 0 && (edid->features & DRM_EDID_FEATURE_PREFERRED_TIMING))

				newmode->type |= DRM_MODE_TYPE_PREFERRED;

			drm_mode_probed_add(connector, newmode);



			modes++;

		}

	}



	return modes;