diff --git a/drivers/gpu/drm/radeon/evergreen_hdmi.c b/drivers/gpu/drm/radeon/evergreen_hdmi.c
index 739336a48d085..5f3078f8ab950 100644
--- a/drivers/gpu/drm/radeon/evergreen_hdmi.c
+++ b/drivers/gpu/drm/radeon/evergreen_hdmi.c
@@ -27,6 +27,7 @@
 #include <linux/hdmi.h>
 
 #include <drm/radeon_drm.h>
+#include "evergreen_hdmi.h"
 #include "radeon.h"
 #include "radeon_asic.h"
 #include "radeon_audio.h"
diff --git a/drivers/gpu/drm/radeon/evergreen_hdmi.h b/drivers/gpu/drm/radeon/evergreen_hdmi.h
new file mode 100644
index 0000000000000..c86276b8d7f58
--- /dev/null
+++ b/drivers/gpu/drm/radeon/evergreen_hdmi.h
@@ -0,0 +1,69 @@
+/* evergreen_hdmi.h -- Private header for radeon driver -*- linux-c -*-
+ *
+ * Copyright 1999 Precision Insight, Inc., Cedar Park, Texas.
+ * Copyright 2000 VA Linux Systems, Inc., Fremont, California.
+ * All rights reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * PRECISION INSIGHT AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+ * DEALINGS IN THE SOFTWARE.
+ *
+ */
+
+#ifndef __EVERGREEN_HDMI_H__
+#define __EVERGREEN_HDMI_H__
+
+struct cea_sa;
+struct cea_sad;
+struct drm_connector;
+struct drm_display_mode;
+struct drm_encoder;
+struct r600_audio_pin;
+struct radeon_crtc;
+struct radeon_device;
+struct radeon_hdmi_acr;
+
+void evergreen_hdmi_write_sad_regs(struct drm_encoder *encoder,
+				   struct cea_sad *sads, int sad_count);
+void evergreen_set_avi_packet(struct radeon_device *rdev, u32 offset,
+			      unsigned char *buffer, size_t size);
+void evergreen_hdmi_update_acr(struct drm_encoder *encoder, long offset,
+			       const struct radeon_hdmi_acr *acr);
+void evergreen_hdmi_enable(struct drm_encoder *encoder, bool enable);
+void evergreen_dp_enable(struct drm_encoder *encoder, bool enable);
+
+void dce4_audio_enable(struct radeon_device *rdev, struct r600_audio_pin *pin,
+		       u8 enable_mask);
+void dce4_afmt_hdmi_write_speaker_allocation(struct drm_encoder *encoder,
+					     u8 *sadb, int sad_count);
+void dce4_afmt_dp_write_speaker_allocation(struct drm_encoder *encoder,
+					   u8 *sadb, int sad_count);
+void dce4_afmt_write_latency_fields(struct drm_encoder *encoder,
+				    struct drm_connector *connector,
+				    struct drm_display_mode *mode);
+void dce4_hdmi_audio_set_dto(struct radeon_device *rdev,
+			     struct radeon_crtc *crtc, unsigned int clock);
+void dce4_dp_audio_set_dto(struct radeon_device *rdev,
+			   struct radeon_crtc *crtc, unsigned int clock);
+void dce4_set_vbi_packet(struct drm_encoder *encoder, u32 offset);
+void dce4_hdmi_set_color_depth(struct drm_encoder *encoder,
+			       u32 offset, int bpc);
+void dce4_set_audio_packet(struct drm_encoder *encoder, u32 offset);
+void dce4_set_mute(struct drm_encoder *encoder, u32 offset, bool mute);
+
+#endif				/* __EVERGREEN_HDMI_H__ */
diff --git a/drivers/gpu/drm/radeon/radeon_audio.c b/drivers/gpu/drm/radeon/radeon_audio.c
index 18228b366752e..7a59028f64fbc 100644
--- a/drivers/gpu/drm/radeon/radeon_audio.c
+++ b/drivers/gpu/drm/radeon/radeon_audio.c
@@ -25,6 +25,7 @@
 #include <linux/gcd.h>
 
 #include <drm/drm_crtc.h>
+#include "evergreen_hdmi.h"
 #include "radeon.h"
 #include "atom.h"
 #include "r600d.h"
@@ -32,55 +33,30 @@
 
 void r600_audio_enable(struct radeon_device *rdev, struct r600_audio_pin *pin,
 		u8 enable_mask);
-void dce4_audio_enable(struct radeon_device *rdev, struct r600_audio_pin *pin,
-		u8 enable_mask);
 void dce6_audio_enable(struct radeon_device *rdev, struct r600_audio_pin *pin,
 		u8 enable_mask);
 u32 dce6_endpoint_rreg(struct radeon_device *rdev, u32 offset, u32 reg);
 void dce6_endpoint_wreg(struct radeon_device *rdev,
 		u32 offset, u32 reg, u32 v);
-void evergreen_hdmi_write_sad_regs(struct drm_encoder *encoder,
-		struct cea_sad *sads, int sad_count);
 void dce6_afmt_write_sad_regs(struct drm_encoder *encoder,
 		struct cea_sad *sads, int sad_count);
-void dce4_afmt_hdmi_write_speaker_allocation(struct drm_encoder *encoder,
-		u8 *sadb, int sad_count);
-void dce4_afmt_dp_write_speaker_allocation(struct drm_encoder *encoder,
-		u8 *sadb, int sad_count);
 void dce6_afmt_hdmi_write_speaker_allocation(struct drm_encoder *encoder,
 		u8 *sadb, int sad_count);
 void dce6_afmt_dp_write_speaker_allocation(struct drm_encoder *encoder,
 		u8 *sadb, int sad_count);
-void dce4_afmt_write_latency_fields(struct drm_encoder *encoder,
-		struct drm_connector *connector, struct drm_display_mode *mode);
 void dce6_afmt_write_latency_fields(struct drm_encoder *encoder,
 		struct drm_connector *connector, struct drm_display_mode *mode);
 struct r600_audio_pin* r600_audio_get_pin(struct radeon_device *rdev);
 struct r600_audio_pin* dce6_audio_get_pin(struct radeon_device *rdev);
 void dce6_afmt_select_pin(struct drm_encoder *encoder);
-void dce4_hdmi_audio_set_dto(struct radeon_device *rdev,
-	struct radeon_crtc *crtc, unsigned int clock);
-void dce4_dp_audio_set_dto(struct radeon_device *rdev,
-	struct radeon_crtc *crtc, unsigned int clock);
 void dce6_hdmi_audio_set_dto(struct radeon_device *rdev,
 	struct radeon_crtc *crtc, unsigned int clock);
 void dce6_dp_audio_set_dto(struct radeon_device *rdev,
 	struct radeon_crtc *crtc, unsigned int clock);
-void evergreen_set_avi_packet(struct radeon_device *rdev, u32 offset,
-	unsigned char *buffer, size_t size);
-void evergreen_hdmi_update_acr(struct drm_encoder *encoder, long offset,
-	const struct radeon_hdmi_acr *acr);
-void dce4_set_vbi_packet(struct drm_encoder *encoder, u32 offset);
-void dce4_hdmi_set_color_depth(struct drm_encoder *encoder,
-	u32 offset, int bpc);
-void dce4_set_audio_packet(struct drm_encoder *encoder, u32 offset);
-void dce4_set_mute(struct drm_encoder *encoder, u32 offset, bool mute);
 static void radeon_audio_hdmi_mode_set(struct drm_encoder *encoder,
 	struct drm_display_mode *mode);
 static void radeon_audio_dp_mode_set(struct drm_encoder *encoder,
 	struct drm_display_mode *mode);
-void evergreen_hdmi_enable(struct drm_encoder *encoder, bool enable);
-void evergreen_dp_enable(struct drm_encoder *encoder, bool enable);
 
 static const u32 pin_offsets[7] =
 {
