[PATCH 32/34] drm/amd/display: check if audio clk enable is applicable

[Harry Wentland]

From: Roman Li <Roman.Li at amd.com>

Fixing warning on dce10 with HDMI display.

Signed-off-by: Roman Li <Roman.Li at amd.com>
Reviewed-by: Charlene Liu <Charlene.Liu at amd.com>
Reviewed-by: Harry Wentland <Harry.Wentland at amd.com>
---
 drivers/gpu/drm/amd/display/dc/dce/dce_stream_encoder.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

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 c0631756cd89..c0e813c7ddd4 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
@@ -720,7 +720,8 @@ static void dce110_stream_encoder_update_hdmi_info_packets(
 			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);
+			if (REG(AFMT_CNTL))
+				REG_UPDATE(AFMT_CNTL, AFMT_AUDIO_CLOCK_EN, 1);
 
 			REG_WRITE(AFMT_AVI_INFO0, content[0]);
 
-- 
2.17.0