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 <keithp@xxxxxxxxxx>
---
drivers/gpu/drm/i915/intel_dp.c | 20 ++++++++++----------
1 files changed, 10 insertions(+), 10 deletions(-)
diff --git a/drivers/gpu/drm/i915/intel_dp.c b/drivers/gpu/drm/i915/intel_dp.c
index f0cfb6b..8ab2a88 100644
--- a/drivers/gpu/drm/i915/intel_dp.c
+++ b/drivers/gpu/drm/i915/intel_dp.c
@@ -1748,7 +1748,16 @@ 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);
@@ -2061,15 +2070,6 @@ 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);
}
--
1.7.6.3
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