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drm/i915/sdvo: Use &intel_sdvo->ddc instead of intel_sdvo->i2c for DDC.

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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 f899fc64cd
Author: Chris Wilson <[email protected]>
Date:   Tue Jul 20 15:44:45 2010 -0700

    drm/i915: use GMBUS to manage i2c links

Signed-off-by: Egbert Eich <[email protected]>
Cc: [email protected]
Reviewed-by: Chris Wilson <[email protected]>
[danvet: Add note about which commit likely introduced this issue.]
Signed-off-by: Daniel Vetter <[email protected]>
This commit is contained in:
Egbert Eich 2013-06-04 17:13:21 +02:00 • committed by Daniel Vetter
commit 53d3b4d777
1 changed files with 1 additions and 1 deletions
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2
drivers/gpu/drm/i915/intel_sdvo.c
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@ -1776,7 +1776,7 @@ 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)
goto end;