This fails on the Macbook for example, and Jesse reported a failure after unloading and reloading the i915.ko module on a HP system. It looked promising distinguishing several of the ghost LVDS, but with even a single false positive, it cannot replace the quirk table.
Signed-off-by: Chris Wilson <[email protected]> Cc: Jesse Barnes <[email protected]> --- drivers/gpu/drm/i915/intel_lvds.c | 24 ------------------------ 1 files changed, 0 insertions(+), 24 deletions(-) diff --git a/drivers/gpu/drm/i915/intel_lvds.c b/drivers/gpu/drm/i915/intel_lvds.c index 86cd30b..a562bd2 100644 --- a/drivers/gpu/drm/i915/intel_lvds.c +++ b/drivers/gpu/drm/i915/intel_lvds.c @@ -829,25 +829,6 @@ static bool lvds_is_present_in_vbt(struct drm_device *dev, return false; } -static bool intel_lvds_ddc_probe(struct drm_device *dev, u8 pin) -{ - struct drm_i915_private *dev_priv = dev->dev_private; - u8 buf = 0; - struct i2c_msg msgs[] = { - { - .addr = 0xA0, - .flags = 0, - .len = 1, - .buf = &buf, - }, - }; - 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; -} - /** * intel_lvds_init - setup LVDS connectors on this device * @dev: drm device @@ -888,11 +869,6 @@ bool intel_lvds_init(struct drm_device *dev) } } - if (!intel_lvds_ddc_probe(dev, pin)) { - DRM_DEBUG_KMS("LVDS did not respond to DDC probe\n"); - return false; - } - intel_lvds = kzalloc(sizeof(struct intel_lvds), GFP_KERNEL); if (!intel_lvds) { return false; -- 1.7.4.1 _______________________________________________ Intel-gfx mailing list [email protected] http://lists.freedesktop.org/mailman/listinfo/intel-gfx
