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Commit b9efc480 authored by Zhao Yakui's avatar Zhao Yakui Committed by Eric Anholt
Browse files

drm/i915: Add fixed panel mode parsed from EDID for eDP without fixed mode in VBT 



Signed-off-by: default avatarZhao Yakui <yakui.zhao@intel.com>
Reviewed-by: default avatarChris Wilson <chris@chris-wilson.co.uk>
Cc: stable@kernel.org
Signed-off-by: default avatarEric Anholt <eric@anholt.net>
parent 81a14b46

drivers/gpu/drm/i915/intel_dp.c

+15 −1
Original line number Diff line number Diff line
@@ -1374,8 +1374,22 @@ static int intel_dp_get_modes(struct drm_connector *connector) 
	 */



	ret = intel_ddc_get_modes(connector, intel_encoder->ddc_bus);

	if (ret)

	if (ret) {

		if ((IS_eDP(intel_encoder) || IS_PCH_eDP(dp_priv)) &&

		    !dev_priv->panel_fixed_mode) {

			struct drm_display_mode *newmode;

			list_for_each_entry(newmode, &connector->probed_modes,

					    head) {

				if (newmode->type & DRM_MODE_TYPE_PREFERRED) {

					dev_priv->panel_fixed_mode =

						drm_mode_duplicate(dev, newmode);

					break;

				}

			}

		}



		return ret;

	}



	/* if eDP has no EDID, try to use fixed panel mode from VBT */

	if (IS_eDP(intel_encoder) || IS_PCH_eDP(dp_priv)) {