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| author | Daniel Vetter <daniel.vetter@ffwll.ch> | 2013-05-21 09:52:16 +0200 |
|---|---|---|
| committer | Daniel Vetter <daniel.vetter@ffwll.ch> | 2013-05-21 09:52:16 +0200 |
| commit | e1b73cba13a0cc68dd4f746eced15bd6bb24cda4 (patch) | |
| tree | b1c9e10730724024a700031ad56c20419dabb500 /drivers/gpu/drm/i915/intel_dvo.c | |
| parent | drm/i915: add support for dvo Chrontel 7010B (diff) | |
| parent | Linux 3.10-rc2 (diff) | |
| download | linux-e1b73cba13a0cc68dd4f746eced15bd6bb24cda4.tar.xz linux-e1b73cba13a0cc68dd4f746eced15bd6bb24cda4.zip | |
Merge tag 'v3.10-rc2' into drm-intel-next-queued
Backmerge Linux 3.10-rc2 since the various (rather trivial) conflicts
grew a bit out of hand. intel_dp.c has the only real functional
conflict since the logic changed while dev_priv->edp.bpp was moved
around.
Also squash in a whitespace fixup from Ben Widawsky for
i915_gem_gtt.c, git seems to do something pretty strange in there
(which I don't fully understand tbh).
Conflicts:
drivers/gpu/drm/i915/i915_reg.h
drivers/gpu/drm/i915/intel_dp.c
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Diffstat (limited to 'drivers/gpu/drm/i915/intel_dvo.c')
| -rw-r--r-- | drivers/gpu/drm/i915/intel_dvo.c | 13 |
1 files changed, 12 insertions, 1 deletions
diff --git a/drivers/gpu/drm/i915/intel_dvo.c b/drivers/gpu/drm/i915/intel_dvo.c index ee328ce8e9fe..2c0be924e9a9 100644 --- a/drivers/gpu/drm/i915/intel_dvo.c +++ b/drivers/gpu/drm/i915/intel_dvo.c @@ -455,6 +455,7 @@ void intel_dvo_init(struct drm_device *dev) const struct intel_dvo_device *dvo = &intel_dvo_devices[i]; struct i2c_adapter *i2c; int gpio; + bool dvoinit; /* Allow the I2C driver info to specify the GPIO to be used in * special cases, but otherwise default to what's defined @@ -474,7 +475,17 @@ void intel_dvo_init(struct drm_device *dev) i2c = intel_gmbus_get_adapter(dev_priv, gpio); intel_dvo->dev = *dvo; - if (!dvo->dev_ops->init(&intel_dvo->dev, i2c)) + + /* GMBUS NAK handling seems to be unstable, hence let the + * transmitter detection run in bit banging mode for now. + */ + intel_gmbus_force_bit(i2c, true); + + dvoinit = dvo->dev_ops->init(&intel_dvo->dev, i2c); + + intel_gmbus_force_bit(i2c, false); + + if (!dvoinit) continue; intel_encoder->type = INTEL_OUTPUT_DVO; |