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| author | Chris Wilson <chris@chris-wilson.co.uk> | 2010-12-08 17:48:21 +0100 |
|---|---|---|
| committer | Chris Wilson <chris@chris-wilson.co.uk> | 2010-12-09 21:20:42 +0100 |
| commit | 63abf3edaf42d0b9f278df90fe41c7ed4796b6b1 (patch) | |
| tree | cd779b8015fa7be521a6255cb0f51d663e691bca | |
| parent | drm/i915/ringbuffer: Handle wrapping of the autoreported HEAD (diff) | |
| download | linux-63abf3edaf42d0b9f278df90fe41c7ed4796b6b1.tar.xz linux-63abf3edaf42d0b9f278df90fe41c7ed4796b6b1.zip | |
drm/i915/sdvo: Only use the SDVO pin if it is in the valid range
BIOSes. Can't live without them (apparently), definitely can't live with
them.
Reported-by: Ben Gamari <bgamari@gmail.com>
Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=24312
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
| -rw-r--r-- | drivers/gpu/drm/i915/intel_sdvo.c | 9 |
1 files changed, 6 insertions, 3 deletions
diff --git a/drivers/gpu/drm/i915/intel_sdvo.c b/drivers/gpu/drm/i915/intel_sdvo.c index d97e6cb52d34..27e63abf2a73 100644 --- a/drivers/gpu/drm/i915/intel_sdvo.c +++ b/drivers/gpu/drm/i915/intel_sdvo.c @@ -1908,9 +1908,12 @@ intel_sdvo_select_i2c_bus(struct drm_i915_private *dev_priv, speed = mapping->i2c_speed; } - sdvo->i2c = &dev_priv->gmbus[pin].adapter; - intel_gmbus_set_speed(sdvo->i2c, speed); - intel_gmbus_force_bit(sdvo->i2c, true); + if (pin < GMBUS_NUM_PORTS) { + sdvo->i2c = &dev_priv->gmbus[pin].adapter; + intel_gmbus_set_speed(sdvo->i2c, speed); + intel_gmbus_force_bit(sdvo->i2c, true); + } else + sdvo->i2c = &dev_priv->gmbus[GMBUS_PORT_DPB].adapter; } static bool |