drm/i915: Set the transcoder port to none when disabling DP.
The specs say to do so.
Signed-off-by: Eric Anholt <eric@anholt.net>
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
diff --git a/drivers/gpu/drm/i915/i915_reg.h b/drivers/gpu/drm/i915/i915_reg.h
index 77b1530..3297cf1 100644
--- a/drivers/gpu/drm/i915/i915_reg.h
+++ b/drivers/gpu/drm/i915/i915_reg.h
@@ -3245,6 +3245,7 @@
#define TRANS_DP_PORT_SEL_B (0<<29)
#define TRANS_DP_PORT_SEL_C (1<<29)
#define TRANS_DP_PORT_SEL_D (2<<29)
+#define TRANS_DP_PORT_SEL_NONE (3<<29)
#define TRANS_DP_PORT_SEL_MASK (3<<29)
#define TRANS_DP_AUDIO_ONLY (1<<26)
#define TRANS_DP_ENH_FRAMING (1<<18)