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
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

1 files changed, 2 insertions, 0 deletions

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 444558ca6533..162f6a6c4208 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
@@ -735,6 +735,8 @@ 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]);