From 7de56f43e06ec6e17f548dfb359d395adbfbb87d Mon Sep 17 00:00:00 2001 From: Zhao Yakui Date: Mon, 19 Jul 2010 09:43:14 +0100 Subject: [PATCH] drm/i915: Validate the mode for eDP by using fixed panel size Signed-off-by: Zhao Yakui Reviewed-by: Chris Wilson Cc: stable@kernel.org Signed-off-by: Eric Anholt --- drivers/gpu/drm/i915/intel_dp.c | 12 ++++++++++++ 1 file changed, 12 insertions(+) diff --git a/drivers/gpu/drm/i915/intel_dp.c b/drivers/gpu/drm/i915/intel_dp.c index 233e6fd89328..40be1fa65be1 100644 --- a/drivers/gpu/drm/i915/intel_dp.c +++ b/drivers/gpu/drm/i915/intel_dp.c @@ -150,9 +150,21 @@ intel_dp_mode_valid(struct drm_connector *connector, { struct drm_encoder *encoder = intel_attached_encoder(connector); struct intel_encoder *intel_encoder = enc_to_intel_encoder(encoder); + struct intel_dp_priv *dp_priv = intel_encoder->dev_priv; + struct drm_device *dev = connector->dev; + struct drm_i915_private *dev_priv = dev->dev_private; int max_link_clock = intel_dp_link_clock(intel_dp_max_link_bw(intel_encoder)); int max_lanes = intel_dp_max_lane_count(intel_encoder); + if ((IS_eDP(intel_encoder) || IS_PCH_eDP(dp_priv)) && + dev_priv->panel_fixed_mode) { + if (mode->hdisplay > dev_priv->panel_fixed_mode->hdisplay) + return MODE_PANEL; + + if (mode->vdisplay > dev_priv->panel_fixed_mode->vdisplay) + return MODE_PANEL; + } + /* only refuse the mode on non eDP since we have seen some wierd eDP panels which are outside spec tolerances but somehow work by magic */ if (!IS_eDP(intel_encoder) && -- 2.20.1