diff --git a/drivers/gpu/drm/radeon/r600_audio.c b/drivers/gpu/drm/radeon/r600_audio.c
index dac7042b797e031b47a049f1a09a6be853bfec02..1d898051c6310fee6713e90502432a47b0c7c330 100644
--- a/drivers/gpu/drm/radeon/r600_audio.c
+++ b/drivers/gpu/drm/radeon/r600_audio.c
@@ -35,7 +35,7 @@
  */
 static int r600_audio_chipset_supported(struct radeon_device *rdev)
 {
-	return rdev->family >= CHIP_R600
+	return (rdev->family >= CHIP_R600 && rdev->family < CHIP_CEDAR)
 		|| rdev->family == CHIP_RS600
 		|| rdev->family == CHIP_RS690
 		|| rdev->family == CHIP_RS740;
diff --git a/drivers/gpu/drm/radeon/r600_hdmi.c b/drivers/gpu/drm/radeon/r600_hdmi.c
index 029fa1406d1d43b3a8a99708fa117d324be5adb8..2616b822ba682468532d75f8c1e4cdb81320d14d 100644
--- a/drivers/gpu/drm/radeon/r600_hdmi.c
+++ b/drivers/gpu/drm/radeon/r600_hdmi.c
@@ -314,6 +314,9 @@ void r600_hdmi_setmode(struct drm_encoder *encoder, struct drm_display_mode *mod
 	struct radeon_device *rdev = dev->dev_private;
 	uint32_t offset = to_radeon_encoder(encoder)->hdmi_offset;
 
+	if (ASIC_IS_DCE4(rdev))
+		return;
+
 	if (!offset)
 		return;
 
@@ -484,6 +487,9 @@ void r600_hdmi_enable(struct drm_encoder *encoder)
 	struct radeon_device *rdev = dev->dev_private;
 	struct radeon_encoder *radeon_encoder = to_radeon_encoder(encoder);
 
+	if (ASIC_IS_DCE4(rdev))
+		return;
+
 	if (!radeon_encoder->hdmi_offset) {
 		r600_hdmi_assign_block(encoder);
 		if (!radeon_encoder->hdmi_offset) {
@@ -525,6 +531,9 @@ void r600_hdmi_disable(struct drm_encoder *encoder)
 	struct radeon_device *rdev = dev->dev_private;
 	struct radeon_encoder *radeon_encoder = to_radeon_encoder(encoder);
 
+	if (ASIC_IS_DCE4(rdev))
+		return;
+
 	if (!radeon_encoder->hdmi_offset) {
 		dev_err(rdev->dev, "Disabling not enabled HDMI\n");
 		return;