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authorChris Wilson <chris@chris-wilson.co.uk>2010-11-09 00:20:52 +0100
committerChris Wilson <chris@chris-wilson.co.uk>2010-11-09 01:59:32 +0100
commit3f8ff0e72d75fdbe7f2cba2c4015fd9fdd9e13fd (patch)
tree8ff3d7b542e72604eabe107ea90d96afb22dd3e2 /drivers/gpu
parentdrm/i915/ringbuffer: Use the HEAD auto-reporting mechanism (diff)
downloadlinux-3f8ff0e72d75fdbe7f2cba2c4015fd9fdd9e13fd.tar.xz
linux-3f8ff0e72d75fdbe7f2cba2c4015fd9fdd9e13fd.zip
drm/i915: Fix LVDS fixed-mode regression from 219adae1
Commit 219adae1 cached the EDID found during LVDS init, but in the process prevented the init routine from discovering the preferred fixed-mode for the panel. This was causing us to guess the correct mode, which sometimes is wide of the mark. Reported-and-tested-by: Jon Masters <jonathan@jonmasters.org> Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Diffstat (limited to 'drivers/gpu')
-rw-r--r--drivers/gpu/drm/i915/intel_lvds.c16
1 files changed, 11 insertions, 5 deletions
diff --git a/drivers/gpu/drm/i915/intel_lvds.c b/drivers/gpu/drm/i915/intel_lvds.c
index f1a649990ea9..4324a326f98e 100644
--- a/drivers/gpu/drm/i915/intel_lvds.c
+++ b/drivers/gpu/drm/i915/intel_lvds.c
@@ -481,11 +481,8 @@ static int intel_lvds_get_modes(struct drm_connector *connector)
struct drm_device *dev = connector->dev;
struct drm_display_mode *mode;
- if (intel_lvds->edid) {
- drm_mode_connector_update_edid_property(connector,
- intel_lvds->edid);
+ if (intel_lvds->edid)
return drm_add_edid_modes(connector, intel_lvds->edid);
- }
mode = drm_mode_duplicate(dev, intel_lvds->fixed_mode);
if (mode == 0)
@@ -939,7 +936,16 @@ void intel_lvds_init(struct drm_device *dev)
*/
intel_lvds->edid = drm_get_edid(connector,
&dev_priv->gmbus[pin].adapter);
-
+ if (intel_lvds->edid) {
+ if (drm_add_edid_modes(connector,
+ intel_lvds->edid)) {
+ drm_mode_connector_update_edid_property(connector,
+ intel_lvds->edid);
+ } else {
+ kfree(intel_lvds->edid);
+ intel_lvds->edid = NULL;
+ }
+ }
if (!intel_lvds->edid) {
/* Didn't get an EDID, so
* Set wide sync ranges so we get all modes