diff options
| 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/intel_drv.h | |
| parent | drm/i915: Add 30ms delay to make SDVO TV detection reliable. (diff) | |
| download | linux-dev-f0217c42c9ab3d772e543f635ce628b9478f70b6.tar.xz linux-dev-f0217c42c9ab3d772e543f635ce628b9478f70b6.zip | |
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/intel_drv.h')
| -rw-r--r-- | drivers/gpu/drm/i915/intel_drv.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/gpu/drm/i915/intel_drv.h b/drivers/gpu/drm/i915/intel_drv.h index 8a22f2508899..9ffa31e13eb3 100644 --- a/drivers/gpu/drm/i915/intel_drv.h +++ b/drivers/gpu/drm/i915/intel_drv.h @@ -162,6 +162,8 @@ void intel_i2c_destroy(struct i2c_adapter *adapter); int intel_ddc_get_modes(struct intel_output *intel_output); extern bool intel_ddc_probe(struct intel_output *intel_output); void intel_i2c_quirk_set(struct drm_device *dev, bool enable); +void intel_i2c_reset_gmbus(struct drm_device *dev); + extern void intel_crt_init(struct drm_device *dev); extern void intel_hdmi_init(struct drm_device *dev, int sdvox_reg); extern bool intel_sdvo_init(struct drm_device *dev, int output_device); |