drm/amd/display: Extract audio code to amdgpu_dm_audio

Move audio component, init/fini, ELD notification,
fill_audio_info, and commit_audio functions from
amdgpu_dm.c into a dedicated amdgpu_dm_audio.c file
with its own header.

No functional change intended.

Assisted-by: Copilot:Claude-Opus-4.6
Reviewed-by: Bhawanpreet Lakha <bhawanpreet.lakha@amd.com>
Signed-off-by: Alex Hung <alex.hung@amd.com>
Signed-off-by: Chenyu Chen <chen-yu.chen@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

4 files changed, 350 insertions, 267 deletions

diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/Makefile b/drivers/gpu/drm/amd/display/amdgpu_dm/Makefile
index 2953c59d85e7..83a7d03a0348 100644
--- a/drivers/gpu/drm/amd/display/amdgpu_dm/Makefile
+++ b/drivers/gpu/drm/amd/display/amdgpu_dm/Makefile
@@ -42,7 +42,8 @@ AMDGPUDM = \
 	amdgpu_dm_wb.o \
 	amdgpu_dm_colorop.o \
 	amdgpu_dm_ism.o \
-	amdgpu_dm_backlight.o
+	amdgpu_dm_backlight.o \
+	amdgpu_dm_audio.o
 
 ifdef CONFIG_DRM_AMD_DC_FP
 AMDGPUDM += dc_fpu.o
diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
index 3bd0ae0e54cd..d72ce66e3fd4 100644
--- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
+++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
@@ -67,6 +67,7 @@
 #include "amdgpu_dm_psr.h"
 #include "amdgpu_dm_replay.h"
 #include "amdgpu_dm_backlight.h"
+#include "amdgpu_dm_audio.h"
 
 #include "ivsrcid/ivsrcid_vislands30.h"
 
@@ -95,7 +96,6 @@
 #include <drm/drm_mode.h>
 #include <drm/drm_utils.h>
 #include <drm/drm_vblank.h>
-#include <drm/drm_audio_component.h>
 #include <drm/drm_colorop.h>
 #include <drm/drm_gem_atomic_helper.h>
 
@@ -1110,144 +1110,6 @@ static void amdgpu_dm_fbc_init(struct drm_connector *connector)
 
 }
 
-static int amdgpu_dm_audio_component_get_eld(struct device *kdev, int port,
-					  int pipe, bool *enabled,
-					  unsigned char *buf, int max_bytes)
-{
-	struct drm_device *dev = dev_get_drvdata(kdev);
-	struct amdgpu_device *adev = drm_to_adev(dev);
-	struct drm_connector *connector;
-	struct drm_connector_list_iter conn_iter;
-	struct amdgpu_dm_connector *aconnector;
-	int ret = 0;
-
-	*enabled = false;
-
-	mutex_lock(&adev->dm.audio_lock);
-
-	drm_connector_list_iter_begin(dev, &conn_iter);
-	drm_for_each_connector_iter(connector, &conn_iter) {
-
-		if (connector->connector_type == DRM_MODE_CONNECTOR_WRITEBACK)
-			continue;
-
-		aconnector = to_amdgpu_dm_connector(connector);
-		if (aconnector->audio_inst != port)
-			continue;
-
-		*enabled = true;
-		mutex_lock(&connector->eld_mutex);
-		ret = drm_eld_size(connector->eld);
-		memcpy(buf, connector->eld, min(max_bytes, ret));
-		mutex_unlock(&connector->eld_mutex);
-
-		break;
-	}
-	drm_connector_list_iter_end(&conn_iter);
-
-	mutex_unlock(&adev->dm.audio_lock);
-
-	drm_dbg_kms(adev_to_drm(adev), "Get ELD : idx=%d ret=%d en=%d\n", port, ret, *enabled);
-
-	return ret;
-}
-
-static const struct drm_audio_component_ops amdgpu_dm_audio_component_ops = {
-	.get_eld = amdgpu_dm_audio_component_get_eld,
-};
-
-static int amdgpu_dm_audio_component_bind(struct device *kdev,
-				       struct device *hda_kdev, void *data)
-{
-	struct drm_device *dev = dev_get_drvdata(kdev);
-	struct amdgpu_device *adev = drm_to_adev(dev);
-	struct drm_audio_component *acomp = data;
-
-	acomp->ops = &amdgpu_dm_audio_component_ops;
-	acomp->dev = kdev;
-	adev->dm.audio_component = acomp;
-
-	return 0;
-}
-
-static void amdgpu_dm_audio_component_unbind(struct device *kdev,
-					  struct device *hda_kdev, void *data)
-{
-	struct amdgpu_device *adev = drm_to_adev(dev_get_drvdata(kdev));
-	struct drm_audio_component *acomp = data;
-
-	acomp->ops = NULL;
-	acomp->dev = NULL;
-	adev->dm.audio_component = NULL;
-}
-
-static const struct component_ops amdgpu_dm_audio_component_bind_ops = {
-	.bind	= amdgpu_dm_audio_component_bind,
-	.unbind	= amdgpu_dm_audio_component_unbind,
-};
-
-static int amdgpu_dm_audio_init(struct amdgpu_device *adev)
-{
-	int i, ret;
-
-	if (!amdgpu_audio)
-		return 0;
-
-	adev->mode_info.audio.enabled = true;
-
-	adev->mode_info.audio.num_pins = adev->dm.dc->res_pool->audio_count;
-
-	for (i = 0; i < adev->mode_info.audio.num_pins; i++) {
-		adev->mode_info.audio.pin[i].channels = -1;
-		adev->mode_info.audio.pin[i].rate = -1;
-		adev->mode_info.audio.pin[i].bits_per_sample = -1;
-		adev->mode_info.audio.pin[i].status_bits = 0;
-		adev->mode_info.audio.pin[i].category_code = 0;
-		adev->mode_info.audio.pin[i].connected = false;
-		adev->mode_info.audio.pin[i].id =
-			adev->dm.dc->res_pool->audios[i]->inst;
-		adev->mode_info.audio.pin[i].offset = 0;
-	}
-
-	ret = component_add(adev->dev, &amdgpu_dm_audio_component_bind_ops);
-	if (ret < 0)
-		return ret;
-
-	adev->dm.audio_registered = true;
-
-	return 0;
-}
-
-static void amdgpu_dm_audio_fini(struct amdgpu_device *adev)
-{
-	if (!amdgpu_audio)
-		return;
-
-	if (!adev->mode_info.audio.enabled)
-		return;
-
-	if (adev->dm.audio_registered) {
-		component_del(adev->dev, &amdgpu_dm_audio_component_bind_ops);
-		adev->dm.audio_registered = false;
-	}
-
-	/* TODO: Disable audio? */
-
-	adev->mode_info.audio.enabled = false;
-}
-
-static  void amdgpu_dm_audio_eld_notify(struct amdgpu_device *adev, int pin)
-{
-	struct drm_audio_component *acomp = adev->dm.audio_component;
-
-	if (acomp && acomp->audio_ops && acomp->audio_ops->pin_eld_notify) {
-		drm_dbg_kms(adev_to_drm(adev), "Notify ELD: %d\n", pin);
-
-		acomp->audio_ops->pin_eld_notify(acomp->audio_ops->audio_ptr,
-						 pin, -1);
-	}
-}
-
 static int dm_dmub_hw_init(struct amdgpu_device *adev)
 {
 	const struct dmcub_firmware_header_v1_0 *hdr;
@@ -6530,51 +6392,6 @@ static void fill_stream_properties_from_drm_display_mode(
 	stream->content_type = get_output_content_type(connector_state);
 }
 
-static void fill_audio_info(struct audio_info *audio_info,
-			    const struct drm_connector *drm_connector,
-			    const struct dc_sink *dc_sink)
-{
-	int i = 0;
-	int cea_revision = 0;
-	const struct dc_edid_caps *edid_caps = &dc_sink->edid_caps;
-
-	audio_info->manufacture_id = edid_caps->manufacturer_id;
-	audio_info->product_id = edid_caps->product_id;
-
-	cea_revision = drm_connector->display_info.cea_rev;
-
-	strscpy(audio_info->display_name,
-		edid_caps->display_name,
-		AUDIO_INFO_DISPLAY_NAME_SIZE_IN_CHARS);
-
-	if (cea_revision >= 3) {
-		audio_info->mode_count = edid_caps->audio_mode_count;
-
-		for (i = 0; i < audio_info->mode_count; ++i) {
-			audio_info->modes[i].format_code =
-					(enum audio_format_code)
-					(edid_caps->audio_modes[i].format_code);
-			audio_info->modes[i].channel_count =
-					edid_caps->audio_modes[i].channel_count;
-			audio_info->modes[i].sample_rates.all =
-					edid_caps->audio_modes[i].sample_rate;
-			audio_info->modes[i].sample_size =
-					edid_caps->audio_modes[i].sample_size;
-		}
-	}
-
-	audio_info->flags.all = edid_caps->speaker_flags;
-
-	/* TODO: We only check for the progressive mode, check for interlace mode too */
-	if (drm_connector->latency_present[0]) {
-		audio_info->video_latency = drm_connector->video_latency[0];
-		audio_info->audio_latency = drm_connector->audio_latency[0];
-	}
-
-	/* TODO: For DP, video and audio latency should be calculated from DPCD caps */
-
-}
-
 static void
 copy_crtc_timing_for_drm_display_mode(const struct drm_display_mode *src_mode,
 				      struct drm_display_mode *dst_mode)
@@ -7176,7 +6993,7 @@ create_stream_for_sink(struct drm_connector *connector,
 
 	update_stream_scaling_settings(dev, &mode, dm_state, stream);
 
-	fill_audio_info(
+	amdgpu_dm_fill_audio_info(
 		&stream->audio_info,
 		connector,
 		sink);
@@ -9984,87 +9801,6 @@ cleanup:
 	kfree(bundle);
 }
 
-static void amdgpu_dm_commit_audio(struct drm_device *dev,
-				   struct drm_atomic_commit *state)
-{
-	struct amdgpu_device *adev = drm_to_adev(dev);
-	struct amdgpu_dm_connector *aconnector;
-	struct drm_connector *connector;
-	struct drm_connector_state *old_con_state, *new_con_state;
-	struct drm_crtc_state *new_crtc_state;
-	struct dm_crtc_state *new_dm_crtc_state;
-	const struct dc_stream_status *status;
-	int i, inst;
-
-	/* Notify device removals. */
-	for_each_oldnew_connector_in_state(state, connector, old_con_state, new_con_state, i) {
-		if (old_con_state->crtc != new_con_state->crtc) {
-			/* CRTC changes require notification. */
-			goto notify;
-		}
-
-		if (!new_con_state->crtc)
-			continue;
-
-		new_crtc_state = drm_atomic_get_new_crtc_state(
-			state, new_con_state->crtc);
-
-		if (!new_crtc_state)
-			continue;
-
-		if (!drm_atomic_crtc_needs_modeset(new_crtc_state))
-			continue;
-
-notify:
-		if (connector->connector_type == DRM_MODE_CONNECTOR_WRITEBACK)
-			continue;
-
-		aconnector = to_amdgpu_dm_connector(connector);
-
-		mutex_lock(&adev->dm.audio_lock);
-		inst = aconnector->audio_inst;
-		aconnector->audio_inst = -1;
-		mutex_unlock(&adev->dm.audio_lock);
-
-		amdgpu_dm_audio_eld_notify(adev, inst);
-	}
-
-	/* Notify audio device additions. */
-	for_each_new_connector_in_state(state, connector, new_con_state, i) {
-		if (!new_con_state->crtc)
-			continue;
-
-		new_crtc_state = drm_atomic_get_new_crtc_state(
-			state, new_con_state->crtc);
-
-		if (!new_crtc_state)
-			continue;
-
-		if (!drm_atomic_crtc_needs_modeset(new_crtc_state))
-			continue;
-
-		new_dm_crtc_state = to_dm_crtc_state(new_crtc_state);
-		if (!new_dm_crtc_state->stream)
-			continue;
-
-		status = dc_stream_get_status(new_dm_crtc_state->stream);
-		if (!status)
-			continue;
-
-		if (connector->connector_type == DRM_MODE_CONNECTOR_WRITEBACK)
-			continue;
-
-		aconnector = to_amdgpu_dm_connector(connector);
-
-		mutex_lock(&adev->dm.audio_lock);
-		inst = status->audio_inst;
-		aconnector->audio_inst = inst;
-		mutex_unlock(&adev->dm.audio_lock);
-
-		amdgpu_dm_audio_eld_notify(adev, inst);
-	}
-}
-
 /*
  * amdgpu_dm_crtc_copy_transient_flags - copy mirrored flags from DRM to DC
  * @crtc_state: the DRM CRTC state
diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_audio.c b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_audio.c
new file mode 100644
index 000000000000..a15b7c0c9075
--- /dev/null
+++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_audio.c
@@ -0,0 +1,302 @@
+// SPDX-License-Identifier: MIT
+/*
+ * Copyright 2026 Advanced Micro Devices, Inc.
+ *
+ * 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 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
+ * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) 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.
+ *
+ * Authors: AMD
+ */
+
+#include "amdgpu.h"
+#include "amdgpu_dm.h"
+#include "amdgpu_dm_audio.h"
+#include "dc.h"
+
+#include <linux/component.h>
+#include <drm/drm_atomic.h>
+#include <drm/drm_audio_component.h>
+#include <drm/drm_connector.h>
+#include <drm/drm_edid.h>
+#include <drm/drm_eld.h>
+
+#include "dc/inc/core_types.h"
+
+static int amdgpu_dm_audio_component_get_eld(struct device *kdev, int port,
+					  int pipe, bool *enabled,
+					  unsigned char *buf, int max_bytes)
+{
+	struct drm_device *dev = dev_get_drvdata(kdev);
+	struct amdgpu_device *adev = drm_to_adev(dev);
+	struct drm_connector *connector;
+	struct drm_connector_list_iter conn_iter;
+	struct amdgpu_dm_connector *aconnector;
+	int ret = 0;
+
+	*enabled = false;
+
+	mutex_lock(&adev->dm.audio_lock);
+
+	drm_connector_list_iter_begin(dev, &conn_iter);
+	drm_for_each_connector_iter(connector, &conn_iter) {
+
+		if (connector->connector_type == DRM_MODE_CONNECTOR_WRITEBACK)
+			continue;
+
+		aconnector = to_amdgpu_dm_connector(connector);
+		if (aconnector->audio_inst != port)
+			continue;
+
+		*enabled = true;
+		mutex_lock(&connector->eld_mutex);
+		ret = drm_eld_size(connector->eld);
+		memcpy(buf, connector->eld, min(max_bytes, ret));
+		mutex_unlock(&connector->eld_mutex);
+
+		break;
+	}
+	drm_connector_list_iter_end(&conn_iter);
+
+	mutex_unlock(&adev->dm.audio_lock);
+
+	drm_dbg_kms(adev_to_drm(adev), "Get ELD : idx=%d ret=%d en=%d\n", port, ret, *enabled);
+
+	return ret;
+}
+
+static const struct drm_audio_component_ops amdgpu_dm_audio_component_ops = {
+	.get_eld = amdgpu_dm_audio_component_get_eld,
+};
+
+static int amdgpu_dm_audio_component_bind(struct device *kdev,
+				       struct device *hda_kdev, void *data)
+{
+	struct drm_device *dev = dev_get_drvdata(kdev);
+	struct amdgpu_device *adev = drm_to_adev(dev);
+	struct drm_audio_component *acomp = data;
+
+	acomp->ops = &amdgpu_dm_audio_component_ops;
+	acomp->dev = kdev;
+	adev->dm.audio_component = acomp;
+
+	return 0;
+}
+
+static void amdgpu_dm_audio_component_unbind(struct device *kdev,
+					  struct device *hda_kdev, void *data)
+{
+	struct amdgpu_device *adev = drm_to_adev(dev_get_drvdata(kdev));
+	struct drm_audio_component *acomp = data;
+
+	acomp->ops = NULL;
+	acomp->dev = NULL;
+	adev->dm.audio_component = NULL;
+}
+
+static const struct component_ops amdgpu_dm_audio_component_bind_ops = {
+	.bind	= amdgpu_dm_audio_component_bind,
+	.unbind	= amdgpu_dm_audio_component_unbind,
+};
+
+int amdgpu_dm_audio_init(struct amdgpu_device *adev)
+{
+	int i, ret;
+
+	if (!amdgpu_audio)
+		return 0;
+
+	adev->mode_info.audio.enabled = true;
+
+	adev->mode_info.audio.num_pins = adev->dm.dc->res_pool->audio_count;
+
+	for (i = 0; i < adev->mode_info.audio.num_pins; i++) {
+		adev->mode_info.audio.pin[i].channels = -1;
+		adev->mode_info.audio.pin[i].rate = -1;
+		adev->mode_info.audio.pin[i].bits_per_sample = -1;
+		adev->mode_info.audio.pin[i].status_bits = 0;
+		adev->mode_info.audio.pin[i].category_code = 0;
+		adev->mode_info.audio.pin[i].connected = false;
+		adev->mode_info.audio.pin[i].id =
+			adev->dm.dc->res_pool->audios[i]->inst;
+		adev->mode_info.audio.pin[i].offset = 0;
+	}
+
+	ret = component_add(adev->dev, &amdgpu_dm_audio_component_bind_ops);
+	if (ret < 0)
+		return ret;
+
+	adev->dm.audio_registered = true;
+
+	return 0;
+}
+
+void amdgpu_dm_audio_fini(struct amdgpu_device *adev)
+{
+	if (!amdgpu_audio)
+		return;
+
+	if (!adev->mode_info.audio.enabled)
+		return;
+
+	if (adev->dm.audio_registered) {
+		component_del(adev->dev, &amdgpu_dm_audio_component_bind_ops);
+		adev->dm.audio_registered = false;
+	}
+
+	/* TODO: Disable audio? */
+
+	adev->mode_info.audio.enabled = false;
+}
+
+static void amdgpu_dm_audio_eld_notify(struct amdgpu_device *adev, int pin)
+{
+	struct drm_audio_component *acomp = adev->dm.audio_component;
+
+	if (acomp && acomp->audio_ops && acomp->audio_ops->pin_eld_notify) {
+		drm_dbg_kms(adev_to_drm(adev), "Notify ELD: %d\n", pin);
+
+		acomp->audio_ops->pin_eld_notify(acomp->audio_ops->audio_ptr,
+						 pin, -1);
+	}
+}
+
+void amdgpu_dm_fill_audio_info(struct audio_info *audio_info,
+		     const struct drm_connector *drm_connector,
+		     const struct dc_sink *dc_sink)
+{
+	int i = 0;
+	int cea_revision = 0;
+	const struct dc_edid_caps *edid_caps = &dc_sink->edid_caps;
+
+	audio_info->manufacture_id = edid_caps->manufacturer_id;
+	audio_info->product_id = edid_caps->product_id;
+
+	cea_revision = drm_connector->display_info.cea_rev;
+
+	strscpy(audio_info->display_name,
+		edid_caps->display_name,
+		AUDIO_INFO_DISPLAY_NAME_SIZE_IN_CHARS);
+
+	if (cea_revision >= 3) {
+		audio_info->mode_count = edid_caps->audio_mode_count;
+
+		for (i = 0; i < audio_info->mode_count; ++i) {
+			audio_info->modes[i].format_code =
+					(enum audio_format_code)
+					(edid_caps->audio_modes[i].format_code);
+			audio_info->modes[i].channel_count =
+					edid_caps->audio_modes[i].channel_count;
+			audio_info->modes[i].sample_rates.all =
+					edid_caps->audio_modes[i].sample_rate;
+			audio_info->modes[i].sample_size =
+					edid_caps->audio_modes[i].sample_size;
+		}
+	}
+
+	audio_info->flags.all = edid_caps->speaker_flags;
+
+	/* TODO: We only check for the progressive mode, check for interlace mode too */
+	if (drm_connector->latency_present[0]) {
+		audio_info->video_latency = drm_connector->video_latency[0];
+		audio_info->audio_latency = drm_connector->audio_latency[0];
+	}
+
+	/* TODO: For DP, video and audio latency should be calculated from DPCD caps */
+
+}
+
+void amdgpu_dm_commit_audio(struct drm_device *dev,
+			    struct drm_atomic_commit *state)
+{
+	struct amdgpu_device *adev = drm_to_adev(dev);
+	struct amdgpu_dm_connector *aconnector;
+	struct drm_connector *connector;
+	struct drm_connector_state *old_con_state, *new_con_state;
+	struct drm_crtc_state *new_crtc_state;
+	struct dm_crtc_state *new_dm_crtc_state;
+	const struct dc_stream_status *status;
+	int i, inst;
+
+	/* Notify device removals. */
+	for_each_oldnew_connector_in_state(state, connector, old_con_state, new_con_state, i) {
+		if (old_con_state->crtc != new_con_state->crtc) {
+			/* CRTC changes require notification. */
+			goto notify;
+		}
+
+		if (!new_con_state->crtc)
+			continue;
+
+		new_crtc_state = drm_atomic_get_new_crtc_state(
+			state, new_con_state->crtc);
+
+		if (!new_crtc_state)
+			continue;
+
+		if (!drm_atomic_crtc_needs_modeset(new_crtc_state))
+			continue;
+
+notify:
+		if (connector->connector_type == DRM_MODE_CONNECTOR_WRITEBACK)
+			continue;
+
+		aconnector = to_amdgpu_dm_connector(connector);
+
+		mutex_lock(&adev->dm.audio_lock);
+		inst = aconnector->audio_inst;
+		aconnector->audio_inst = -1;
+		mutex_unlock(&adev->dm.audio_lock);
+
+		amdgpu_dm_audio_eld_notify(adev, inst);
+	}
+
+	/* Notify audio device additions. */
+	for_each_new_connector_in_state(state, connector, new_con_state, i) {
+		if (!new_con_state->crtc)
+			continue;
+
+		new_crtc_state = drm_atomic_get_new_crtc_state(
+			state, new_con_state->crtc);
+
+		if (!new_crtc_state)
+			continue;
+
+		if (!drm_atomic_crtc_needs_modeset(new_crtc_state))
+			continue;
+
+		new_dm_crtc_state = to_dm_crtc_state(new_crtc_state);
+		if (!new_dm_crtc_state->stream)
+			continue;
+
+		status = dc_stream_get_status(new_dm_crtc_state->stream);
+		if (!status)
+			continue;
+
+		if (connector->connector_type == DRM_MODE_CONNECTOR_WRITEBACK)
+			continue;
+
+		aconnector = to_amdgpu_dm_connector(connector);
+
+		mutex_lock(&adev->dm.audio_lock);
+		inst = status->audio_inst;
+		aconnector->audio_inst = inst;
+		mutex_unlock(&adev->dm.audio_lock);
+
+		amdgpu_dm_audio_eld_notify(adev, inst);
+	}
+}
diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_audio.h b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_audio.h
new file mode 100644
index 000000000000..58cce1f79ffd
--- /dev/null
+++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_audio.h
@@ -0,0 +1,44 @@
+/* SPDX-License-Identifier: MIT */
+/*
+ * Copyright 2026 Advanced Micro Devices, Inc.
+ *
+ * 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 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
+ * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) 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.
+ *
+ * Authors: AMD
+ */
+
+#ifndef __AMDGPU_DM_AUDIO_H__
+#define __AMDGPU_DM_AUDIO_H__
+
+struct amdgpu_device;
+struct drm_device;
+struct drm_atomic_state;
+struct drm_connector;
+struct audio_info;
+struct dc_sink;
+
+int amdgpu_dm_audio_init(struct amdgpu_device *adev);
+void amdgpu_dm_audio_fini(struct amdgpu_device *adev);
+void amdgpu_dm_commit_audio(struct drm_device *dev,
+			    struct drm_atomic_commit *state);
+void amdgpu_dm_fill_audio_info(struct audio_info *audio_info,
+		     const struct drm_connector *drm_connector,
+		     const struct dc_sink *dc_sink);
+
+#endif /* __AMDGPU_DM_AUDIO_H__ */