drm/i915: Explicitly use ddi buf trans entry 9 for hdmi

When the DDI port is in HDMI/DVI mode, it automagically uses the buffer
translations values from entry 9. Let's make that explicit in the code.

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: http://patchwork.freedesktop.org/patch/msgid/1468328376-6380-6-git-send-email-ville.syrjala@linux.intel.com
diff --git a/drivers/gpu/drm/i915/intel_ddi.c b/drivers/gpu/drm/i915/intel_ddi.c
index 52589bb..35b9799 100644
--- a/drivers/gpu/drm/i915/intel_ddi.c
+++ b/drivers/gpu/drm/i915/intel_ddi.c
@@ -526,9 +526,9 @@
 		return;
 
 	/* Entry 9 is for HDMI: */
-	I915_WRITE(DDI_BUF_TRANS_LO(port, i),
+	I915_WRITE(DDI_BUF_TRANS_LO(port, 9),
 		   ddi_translations_hdmi[hdmi_level].trans1 | iboost_bit);
-	I915_WRITE(DDI_BUF_TRANS_HI(port, i),
+	I915_WRITE(DDI_BUF_TRANS_HI(port, 9),
 		   ddi_translations_hdmi[hdmi_level].trans2);
 }