diff --git a/drivers/gpu/drm/amd/display/dc/dcn31/dcn31_apg.c b/drivers/gpu/drm/amd/display/dc/dcn31/dcn31_apg.c
index 6bd7a06266659d7ca179cd727db3c4d8e163a1e4..de5e18c2a3ac858bec1397e8e4d9f2295b384ca2 100644
--- a/drivers/gpu/drm/amd/display/dc/dcn31/dcn31_apg.c
+++ b/drivers/gpu/drm/amd/display/dc/dcn31/dcn31_apg.c
@@ -129,7 +129,7 @@ static void apg31_se_audio_setup(
 
 	/* When running in "pair mode", pairs of audio channels have their own enable
 	 * this is for really old audio drivers */
-	REG_UPDATE(APG_DBG_GEN_CONTROL, APG_DBG_AUDIO_CHANNEL_ENABLE, 0xF);
+	REG_UPDATE(APG_DBG_GEN_CONTROL, APG_DBG_AUDIO_CHANNEL_ENABLE, 0xFF);
 	// REG_UPDATE(APG_DBG_GEN_CONTROL, APG_DBG_AUDIO_CHANNEL_ENABLE, channels);
 
 	/* Disable forced mem power off */