[PATCH 15/21] drm/amd/display: HDMI has no sound after Panel power off/on

[Harry Wentland]

From: Charlene Liu <charlene.liu at amd.com>

Signed-off-by: Charlene Liu <charlene.liu at amd.com>
Reviewed-by: Krunoslav Kovac <Krunoslav.Kovac at amd.com>
Acked-by: Harry Wentland <harry.wentland at amd.com>
Cc: stable at 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 07c32421c226..84e26c894046 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]);
 
-- 
2.15.1