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From 8551dbb39be200f208d8bdab2e9a273830d05e12 Mon Sep 17 00:00:00 2001
From: Charlene Liu <charlene.liu@amd.com>
Date: Fri, 6 Apr 2018 23:03:12 -0400
Subject: [PATCH 4214/5725] drm/amd/display: HDMI has no sound after Panel
power off/on
Signed-off-by: Charlene Liu <charlene.liu@amd.com>
Reviewed-by: Krunoslav Kovac <Krunoslav.Kovac@amd.com>
Acked-by: Harry Wentland <harry.wentland@amd.com>
Cc: stable@vger.kernel.org
---
drivers/gpu/drm/amd/display/dc/dce/dce_stream_encoder.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/drivers/gpu/drm/amd/display/dc/dce/dce_stream_encoder.c b/drivers/gpu/drm/amd/display/dc/dce/dce_stream_encoder.c
index 07c3242..84e26c8 100644
--- a/drivers/gpu/drm/amd/display/dc/dce/dce_stream_encoder.c
+++ b/drivers/gpu/drm/amd/display/dc/dce/dce_stream_encoder.c
@@ -718,6 +718,8 @@ static void dce110_stream_encoder_update_hdmi_info_packets(
if (info_frame->avi.valid) {
const uint32_t *content =
(const uint32_t *) &info_frame->avi.sb[0];
+ /*we need turn on clock before programming AFMT block*/
+ REG_UPDATE(AFMT_CNTL, AFMT_AUDIO_CLOCK_EN, 1);
REG_WRITE(AFMT_AVI_INFO0, content[0]);
--
2.7.4
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