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| author | Eric Anholt <eric@anholt.net> | 2009-12-01 11:56:30 -0800 |
|---|---|---|
| committer | Eric Anholt <eric@anholt.net> | 2009-12-01 11:56:30 -0800 |
| commit | f0217c42c9ab3d772e543f635ce628b9478f70b6 (patch) | |
| tree | 01dfcd607f90f250fb27cb303747b3d770879742 /drivers/gpu/drm/i915/i915_suspend.c | |
| parent | d09c23de9f967a7b7dcee0ffc57222ddbd821aba (diff) | |
| download | kernel_samsung_smdk4412-f0217c42c9ab3d772e543f635ce628b9478f70b6.zip kernel_samsung_smdk4412-f0217c42c9ab3d772e543f635ce628b9478f70b6.tar.gz kernel_samsung_smdk4412-f0217c42c9ab3d772e543f635ce628b9478f70b6.tar.bz2 | |
drm/i915: Fix DDC on some systems by clearing BIOS GMBUS setup.
This is a sync of a fix I made in the old UMS code. If the BIOS uses
the GMBUS and doesn't clear that setup, then our bit-banging I2C can
fail, leading to monitors not being detected.
Signed-off-by: Eric Anholt <eric@anholt.net>
Diffstat (limited to 'drivers/gpu/drm/i915/i915_suspend.c')
| -rw-r--r-- | drivers/gpu/drm/i915/i915_suspend.c | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/drivers/gpu/drm/i915/i915_suspend.c b/drivers/gpu/drm/i915/i915_suspend.c index cd10d9b..c5a6df9 100644 --- a/drivers/gpu/drm/i915/i915_suspend.c +++ b/drivers/gpu/drm/i915/i915_suspend.c @@ -27,7 +27,7 @@ #include "drmP.h" #include "drm.h" #include "i915_drm.h" -#include "i915_drv.h" +#include "intel_drv.h" static bool i915_pipe_enabled(struct drm_device *dev, enum pipe pipe) { @@ -816,6 +816,9 @@ int i915_restore_state(struct drm_device *dev) for (i = 0; i < 3; i++) I915_WRITE(SWF30 + (i << 2), dev_priv->saveSWF2[i]); + /* I2C state */ + intel_i2c_reset_gmbus(dev); + return 0; } |