drm/i915: Don't touch PORT_HOTPLUG_EN in intel_dp_detect()

PORT_HOTPLUG_EN has allready been setup in i915_driver_irq_postinstall(),
when intel_dp_detect() runs.

Delete the DP[BCD]_HOTPLUG_INT_EN defines, they are not referenced anymore.

I found this while searching for a fix for
        https://bugzilla.redhat.com/show_bug.cgi?id=528312

Signed-off-by: Karsten Wiese <fzu@wemgehoertderstaat.de>
Signed-off-by: Eric Anholt <eric@anholt.net>

1 files changed, 0 insertions, 10 deletions

diff --git a/drivers/gpu/drm/i915/intel_dp.c b/drivers/gpu/drm/i915/intel_dp.c
index 480a5eef8a48..21e3fdc07585 100644
--- a/drivers/gpu/drm/i915/intel_dp.c
+++ b/drivers/gpu/drm/i915/intel_dp.c
@@ -1232,16 +1232,6 @@ intel_dp_detect(struct drm_connector *connector)
         if (HAS_PCH_SPLIT(dev))
                 return ironlake_dp_detect(connector);
 
-        temp = I915_READ(PORT_HOTPLUG_EN);
-
-        I915_WRITE(PORT_HOTPLUG_EN,
-               temp |
-               DPB_HOTPLUG_INT_EN |
-               DPC_HOTPLUG_INT_EN |
-               DPD_HOTPLUG_INT_EN);
-
-        POSTING_READ(PORT_HOTPLUG_EN);
-
         switch (dp_priv->output_reg) {
         case DP_B:
                 bit = DPB_HOTPLUG_INT_STATUS;