|author||Egbert Eich <firstname.lastname@example.org>||2013-06-04 17:13:21 +0200|
|committer||Greg Kroah-Hartman <email@example.com>||2013-06-13 09:45:02 -0700|
drm/i915/sdvo: Use &intel_sdvo->ddc instead of intel_sdvo->i2c for DDC.
commit 53d3b4d7778daf15900867336c85d3f8dd70600c upstream. In intel_sdvo_get_lvds_modes() the wrong i2c adapter record is used for DDC. Thus the code will always have to rely on a LVDS panel mode supplied by VBT. In most cases this succeeds, so this didn't get detected for quite a while. This regression seems to have been introduced in commit f899fc64cda8569d0529452aafc0da31c042df2e Author: Chris Wilson <firstname.lastname@example.org> Date: Tue Jul 20 15:44:45 2010 -0700 drm/i915: use GMBUS to manage i2c links Signed-off-by: Egbert Eich <email@example.com> Reviewed-by: Chris Wilson <firstname.lastname@example.org> [danvet: Add note about which commit likely introduced this issue.] Signed-off-by: Daniel Vetter <email@example.com> Signed-off-by: Greg Kroah-Hartman <firstname.lastname@example.org>
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/gpu/drm/i915/intel_sdvo.c b/drivers/gpu/drm/i915/intel_sdvo.c
index 1b6b1570f4c2..aeb9d6e15030 100644
@@ -1581,7 +1581,7 @@ static void intel_sdvo_get_lvds_modes(struct drm_connector *connector)
* Assume that the preferred modes are
* arranged in priority order.
- intel_ddc_get_modes(connector, intel_sdvo->i2c);
+ intel_ddc_get_modes(connector, &intel_sdvo->ddc);
if (list_empty(&connector->probed_modes) == false)