From 61f3e7704897188d85e5698980316f2929a7c753 Mon Sep 17 00:00:00 2001
From: Rodrigo Vivi <rodrigo.vivi@intel.com>
Date: Mon, 10 Jul 2017 13:58:52 -0700
Subject: [PATCH] drm/i915/cnl: Add missing type case.
Git-commit: 61f3e7704897188d85e5698980316f2929a7c753
Patch-mainline: v4.14-rc1
References: FATE#322643 bsc#1055900
Paulo had noticed that inside cnl_ddi_vswing_program
the case was handling voltage but with no indication
of type where a missing type could also take us to that
path. So my first attempt was to add a message to
let clear who trigger that path.
However DK had a better idea that is to handle the
missed type sooner before it might take to that path.
So this v2 here uses his approach.
V2: Handle missed type sooner.
Cc: Dhinakaran Pandiyan <dhinakaran.pandiyan@intel.com>
Cc: Paulo Zanoni <paulo.r.zanoni@intel.com>
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Reviewed-by: Dhinakaran Pandiyan <dhinakaran.pandiyan@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/20170710205852.28352-1-rodrigo.vivi@intel.com
Acked-by: Takashi Iwai <tiwai@suse.de>
---
drivers/gpu/drm/i915/intel_ddi.c | 5 ++++-
1 file changed, 4 insertions(+), 1 deletion(-)
--- a/drivers/gpu/drm/i915/intel_ddi.c
+++ b/drivers/gpu/drm/i915/intel_ddi.c
@@ -1979,9 +1979,12 @@ static void cnl_ddi_vswing_sequence(stru
if ((intel_dp) && (type == INTEL_OUTPUT_EDP || type == INTEL_OUTPUT_DP)) {
width = intel_dp->lane_count;
rate = intel_dp->link_rate;
- } else {
+ } else if (type == INTEL_OUTPUT_HDMI) {
width = 4;
/* Rate is always < than 6GHz for HDMI */
+ } else {
+ MISSING_CASE(type);
+ return;
}
/*