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 83bae207371d..327a0a76266b 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
@@ -87,8 +87,10 @@ static void dce110_update_generic_info_packet(
 	 */
 	uint32_t max_retries = 50;
 
+	REG_GET(AFMT_CNTL, AFMT_AUDIO_CLOCK_EN, &regval);
 	/*we need turn on clock before programming AFMT block*/
-	REG_UPDATE(AFMT_CNTL, AFMT_AUDIO_CLOCK_EN, 1);
+	if (regval != 1)
+		REG_UPDATE(AFMT_CNTL, AFMT_AUDIO_CLOCK_EN, 1);
 
 	if (REG(AFMT_VBI_PACKET_CONTROL1)) {
 		if (packet_index >= 8)