drm/i915: Enable GMBUS for post-gen2 chipsets

With the recent SDVO fix, this is working on all the machines I have to
hand - except for an 845G.

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>

1 files changed, 2 insertions, 1 deletions

diff --git a/drivers/gpu/drm/i915/intel_i2c.c b/drivers/gpu/drm/i915/intel_i2c.c
index 58040f68ed7a..82d04c5899d2 100644
--- a/drivers/gpu/drm/i915/intel_i2c.c
+++ b/drivers/gpu/drm/i915/intel_i2c.c
@@ -384,7 +384,8 @@ int intel_setup_gmbus(struct drm_device *dev)
                 bus->reg0 = i | GMBUS_RATE_100KHZ;
 
                 /* XXX force bit banging until GMBUS is fully debugged */
-                bus->force_bit = intel_gpio_create(dev_priv, i);
+                if (IS_GEN2(dev))
+                        bus->force_bit = intel_gpio_create(dev_priv, i);
         }
 
         intel_i2c_reset(dev_priv->dev);