diff options
Diffstat (limited to 'drivers/gpu/drm/i915')
| -rw-r--r-- | drivers/gpu/drm/i915/i915_drv.h | 4 | ||||
| -rw-r--r-- | drivers/gpu/drm/i915/intel_lvds.c | 3 |
2 files changed, 7 insertions, 0 deletions
diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h index 0bb255331764..0ce76a82a675 100644 --- a/drivers/gpu/drm/i915/i915_drv.h +++ b/drivers/gpu/drm/i915/i915_drv.h @@ -1108,6 +1108,10 @@ extern int intel_setup_gmbus(struct drm_device *dev); extern void intel_teardown_gmbus(struct drm_device *dev); extern void intel_gmbus_set_speed(struct i2c_adapter *adapter, int speed); extern void intel_gmbus_force_bit(struct i2c_adapter *adapter, bool force_bit); +extern inline bool intel_gmbus_is_forced_bit(struct i2c_adapter *adapter) +{ + return container_of(adapter, struct intel_gmbus, adapter)->force_bit; +} extern void intel_i2c_reset(struct drm_device *dev); /* intel_opregion.c */ diff --git a/drivers/gpu/drm/i915/intel_lvds.c b/drivers/gpu/drm/i915/intel_lvds.c index 98172bcf485f..f1a649990ea9 100644 --- a/drivers/gpu/drm/i915/intel_lvds.c +++ b/drivers/gpu/drm/i915/intel_lvds.c @@ -827,6 +827,9 @@ static bool intel_lvds_ddc_probe(struct drm_device *dev, u8 pin) }, }; struct i2c_adapter *i2c = &dev_priv->gmbus[pin].adapter; + /* XXX this only appears to work when using GMBUS */ + if (intel_gmbus_is_forced_bit(i2c)) + return true; return i2c_transfer(i2c, msgs, 1) == 1; } |