From: Zhao Yakui <[email protected]>
Signed-off-by: Zhao Yakui <[email protected]>
Reviewed-by: Chris Wilson <[email protected]>
Cc: [email protected]
---
drivers/gpu/drm/i915/intel_dp.c | 12 ++++++++++++
1 files changed, 12 insertions(+), 0 deletions(-)
diff --git a/drivers/gpu/drm/i915/intel_dp.c b/drivers/gpu/drm/i915/intel_dp.c
index 25168fa..6f4afde 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) &&
--
1.7.1
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