drm/i915: use vlv_dport_to_channel in vlv_signal_levels

Minor cleanup.  Would be nice to use an enum for channel in the DPIO
macros so we don't mix up pipes and channels, but that's for another
patch.

Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>

diff --git a/drivers/gpu/drm/i915/intel_dp.c b/drivers/gpu/drm/i915/intel_dp.c
index 058002659d9b20870e445aa20436bd79297d8b21..1ccf853e2df72d0b2f1a98529b223c328ec3f526 100644 (file)
--- a/drivers/gpu/drm/i915/intel_dp.c
+++ b/drivers/gpu/drm/i915/intel_dp.c
@@ -1595,14 +1595,7 @@ static uint32_t intel_vlv_signal_levels(struct intel_dp *intel_dp)
        unsigned long demph_reg_value, preemph_reg_value,
                uniqtranscale_reg_value;
        uint8_t train_set = intel_dp->train_set[0];
-       int port;
-
-       if (dport->port == PORT_B)
-               port = 0;
-       else if (dport->port == PORT_C)
-               port = 1;
-       else
-               BUG();
+       int port = vlv_dport_to_channel(dport);
 
        WARN_ON(!mutex_is_locked(&dev_priv->dpio_lock));