From 47f0eb2234a2a1c790825393bbaccfadf82463d3 Mon Sep 17 00:00:00 2001 From: Keith Packard Date: Mon, 19 Sep 2011 14:33:26 -0700 Subject: [PATCH] drm/i915: Only use VBT panel mode on eDP if no EDID is found We're going to assume that EDID is more reliable than the VBT tables for eDP panels, which is notably true on MacBook machines where the VBT contains completely bogus data. Signed-off-by: Keith Packard Reviewed-by: Daniel Vetter --- drivers/gpu/drm/i915/intel_dp.c | 20 ++++++++++---------- 1 file changed, 10 insertions(+), 10 deletions(-) diff --git a/drivers/gpu/drm/i915/intel_dp.c b/drivers/gpu/drm/i915/intel_dp.c index 44fef5e1c490..3717fa699f56 100644 --- a/drivers/gpu/drm/i915/intel_dp.c +++ b/drivers/gpu/drm/i915/intel_dp.c @@ -1755,7 +1755,16 @@ static int intel_dp_get_modes(struct drm_connector *connector) /* if eDP has no EDID, try to use fixed panel mode from VBT */ if (is_edp(intel_dp)) { - if (dev_priv->panel_fixed_mode != NULL) { + /* initialize panel mode from VBT if available for eDP */ + if (dev_priv->panel_fixed_mode == NULL && dev_priv->lfp_lvds_vbt_mode != NULL) { + dev_priv->panel_fixed_mode = + drm_mode_duplicate(dev, dev_priv->lfp_lvds_vbt_mode); + if (dev_priv->panel_fixed_mode) { + dev_priv->panel_fixed_mode->type |= + DRM_MODE_TYPE_PREFERRED; + } + } + if (dev_priv->panel_fixed_mode) { struct drm_display_mode *mode; mode = drm_mode_duplicate(dev, dev_priv->panel_fixed_mode); drm_mode_probed_add(connector, mode); @@ -2068,15 +2077,6 @@ intel_dp_init(struct drm_device *dev, int output_reg) intel_encoder->hot_plug = intel_dp_hot_plug; if (is_edp(intel_dp)) { - /* initialize panel mode from VBT if available for eDP */ - if (dev_priv->lfp_lvds_vbt_mode) { - dev_priv->panel_fixed_mode = - drm_mode_duplicate(dev, dev_priv->lfp_lvds_vbt_mode); - if (dev_priv->panel_fixed_mode) { - dev_priv->panel_fixed_mode->type |= - DRM_MODE_TYPE_PREFERRED; - } - } dev_priv->int_edp_connector = connector; intel_panel_setup_backlight(dev); } -- 2.30.2