1 files changed, 0 insertions, 351 deletions

diff --git a/sound/hda/hdac_component.c b/sound/hda/hdac_component.c
deleted file mode 100644
index 89126c6fd216..000000000000
--- a/sound/hda/hdac_component.c
+++ /dev/null
@@ -1,351 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0
-// hdac_component.c - routines for sync between HD-A core and DRM driver
-
-#include <linux/init.h>
-#include <linux/module.h>
-#include <linux/pci.h>
-#include <linux/component.h>
-#include <sound/core.h>
-#include <sound/hdaudio.h>
-#include <sound/hda_component.h>
-#include <sound/hda_register.h>
-
-static void hdac_acomp_release(struct device *dev, void *res)
-{
-}
-
-static struct drm_audio_component *hdac_get_acomp(struct device *dev)
-{
-	return devres_find(dev, hdac_acomp_release, NULL, NULL);
-}
-
-/**
- * snd_hdac_set_codec_wakeup - Enable / disable HDMI/DP codec wakeup
- * @bus: HDA core bus
- * @enable: enable or disable the wakeup
- *
- * This function is supposed to be used only by a HD-audio controller
- * driver that needs the interaction with graphics driver.
- *
- * This function should be called during the chip reset, also called at
- * resume for updating STATESTS register read.
- *
- * Returns zero for success or a negative error code.
- */
-int snd_hdac_set_codec_wakeup(struct hdac_bus *bus, bool enable)
-{
-	struct drm_audio_component *acomp = bus->audio_component;
-
-	if (!acomp || !acomp->ops)
-		return -ENODEV;
-
-	if (!acomp->ops->codec_wake_override)
-		return 0;
-
-	dev_dbg(bus->dev, "%s codec wakeup\n",
-		enable ? "enable" : "disable");
-
-	acomp->ops->codec_wake_override(acomp->dev, enable);
-
-	return 0;
-}
-EXPORT_SYMBOL_GPL(snd_hdac_set_codec_wakeup);
-
-/**
- * snd_hdac_display_power - Power up / down the power refcount
- * @bus: HDA core bus
- * @idx: HDA codec address, pass HDA_CODEC_IDX_CONTROLLER for controller
- * @enable: power up or down
- *
- * This function is used by either HD-audio controller or codec driver that
- * needs the interaction with graphics driver.
- *
- * This function updates the power status, and calls the get_power() and
- * put_power() ops accordingly, toggling the codec wakeup, too.
- */
-void snd_hdac_display_power(struct hdac_bus *bus, unsigned int idx, bool enable)
-{
-	struct drm_audio_component *acomp = bus->audio_component;
-
-	dev_dbg(bus->dev, "display power %s\n",
-		enable ? "enable" : "disable");
-
-	mutex_lock(&bus->lock);
-	if (enable)
-		set_bit(idx, &bus->display_power_status);
-	else
-		clear_bit(idx, &bus->display_power_status);
-
-	if (!acomp || !acomp->ops)
-		goto unlock;
-
-	if (bus->display_power_status) {
-		if (!bus->display_power_active) {
-			unsigned long cookie = -1;
-
-			if (acomp->ops->get_power)
-				cookie = acomp->ops->get_power(acomp->dev);
-
-			snd_hdac_set_codec_wakeup(bus, true);
-			snd_hdac_set_codec_wakeup(bus, false);
-			bus->display_power_active = cookie;
-		}
-	} else {
-		if (bus->display_power_active) {
-			unsigned long cookie = bus->display_power_active;
-
-			if (acomp->ops->put_power)
-				acomp->ops->put_power(acomp->dev, cookie);
-
-			bus->display_power_active = 0;
-		}
-	}
- unlock:
-	mutex_unlock(&bus->lock);
-}
-EXPORT_SYMBOL_GPL(snd_hdac_display_power);
-
-/**
- * snd_hdac_sync_audio_rate - Set N/CTS based on the sample rate
- * @codec: HDA codec
- * @nid: the pin widget NID
- * @dev_id: device identifier
- * @rate: the sample rate to set
- *
- * This function is supposed to be used only by a HD-audio controller
- * driver that needs the interaction with graphics driver.
- *
- * This function sets N/CTS value based on the given sample rate.
- * Returns zero for success, or a negative error code.
- */
-int snd_hdac_sync_audio_rate(struct hdac_device *codec, hda_nid_t nid,
-			     int dev_id, int rate)
-{
-	struct hdac_bus *bus = codec->bus;
-	struct drm_audio_component *acomp = bus->audio_component;
-	int port, pipe;
-
-	if (!acomp || !acomp->ops || !acomp->ops->sync_audio_rate)
-		return -ENODEV;
-	port = nid;
-	if (acomp->audio_ops && acomp->audio_ops->pin2port) {
-		port = acomp->audio_ops->pin2port(codec, nid);
-		if (port < 0)
-			return -EINVAL;
-	}
-	pipe = dev_id;
-	return acomp->ops->sync_audio_rate(acomp->dev, port, pipe, rate);
-}
-EXPORT_SYMBOL_GPL(snd_hdac_sync_audio_rate);
-
-/**
- * snd_hdac_acomp_get_eld - Get the audio state and ELD via component
- * @codec: HDA codec
- * @nid: the pin widget NID
- * @dev_id: device identifier
- * @audio_enabled: the pointer to store the current audio state
- * @buffer: the buffer pointer to store ELD bytes
- * @max_bytes: the max bytes to be stored on @buffer
- *
- * This function is supposed to be used only by a HD-audio controller
- * driver that needs the interaction with graphics driver.
- *
- * This function queries the current state of the audio on the given
- * digital port and fetches the ELD bytes onto the given buffer.
- * It returns the number of bytes for the total ELD data, zero for
- * invalid ELD, or a negative error code.
- *
- * The return size is the total bytes required for the whole ELD bytes,
- * thus it may be over @max_bytes.  If it's over @max_bytes, it implies
- * that only a part of ELD bytes have been fetched.
- */
-int snd_hdac_acomp_get_eld(struct hdac_device *codec, hda_nid_t nid, int dev_id,
-			   bool *audio_enabled, char *buffer, int max_bytes)
-{
-	struct hdac_bus *bus = codec->bus;
-	struct drm_audio_component *acomp = bus->audio_component;
-	int port, pipe;
-
-	if (!acomp || !acomp->ops || !acomp->ops->get_eld)
-		return -ENODEV;
-
-	port = nid;
-	if (acomp->audio_ops && acomp->audio_ops->pin2port) {
-		port = acomp->audio_ops->pin2port(codec, nid);
-		if (port < 0)
-			return -EINVAL;
-	}
-	pipe = dev_id;
-	return acomp->ops->get_eld(acomp->dev, port, pipe, audio_enabled,
-				   buffer, max_bytes);
-}
-EXPORT_SYMBOL_GPL(snd_hdac_acomp_get_eld);
-
-static int hdac_component_master_bind(struct device *dev)
-{
-	struct drm_audio_component *acomp = hdac_get_acomp(dev);
-	int ret;
-
-	if (WARN_ON(!acomp))
-		return -EINVAL;
-
-	ret = component_bind_all(dev, acomp);
-	if (ret < 0)
-		return ret;
-
-	if (WARN_ON(!(acomp->dev && acomp->ops))) {
-		ret = -EINVAL;
-		goto out_unbind;
-	}
-
-	/* pin the module to avoid dynamic unbinding, but only if given */
-	if (!try_module_get(acomp->ops->owner)) {
-		ret = -ENODEV;
-		goto out_unbind;
-	}
-
-	if (acomp->audio_ops && acomp->audio_ops->master_bind) {
-		ret = acomp->audio_ops->master_bind(dev, acomp);
-		if (ret < 0)
-			goto module_put;
-	}
-
-	return 0;
-
- module_put:
-	module_put(acomp->ops->owner);
-out_unbind:
-	component_unbind_all(dev, acomp);
-
-	return ret;
-}
-
-static void hdac_component_master_unbind(struct device *dev)
-{
-	struct drm_audio_component *acomp = hdac_get_acomp(dev);
-
-	if (acomp->audio_ops && acomp->audio_ops->master_unbind)
-		acomp->audio_ops->master_unbind(dev, acomp);
-	module_put(acomp->ops->owner);
-	component_unbind_all(dev, acomp);
-	WARN_ON(acomp->ops || acomp->dev);
-}
-
-static const struct component_master_ops hdac_component_master_ops = {
-	.bind = hdac_component_master_bind,
-	.unbind = hdac_component_master_unbind,
-};
-
-/**
- * snd_hdac_acomp_register_notifier - Register audio component ops
- * @bus: HDA core bus
- * @aops: audio component ops
- *
- * This function is supposed to be used only by a HD-audio controller
- * driver that needs the interaction with graphics driver.
- *
- * This function sets the given ops to be called by the graphics driver.
- *
- * Returns zero for success or a negative error code.
- */
-int snd_hdac_acomp_register_notifier(struct hdac_bus *bus,
-				    const struct drm_audio_component_audio_ops *aops)
-{
-	if (!bus->audio_component)
-		return -ENODEV;
-
-	bus->audio_component->audio_ops = aops;
-	return 0;
-}
-EXPORT_SYMBOL_GPL(snd_hdac_acomp_register_notifier);
-
-/**
- * snd_hdac_acomp_init - Initialize audio component
- * @bus: HDA core bus
- * @aops: audio component ops
- * @match_master: match function for finding components
- * @extra_size: Extra bytes to allocate
- *
- * This function is supposed to be used only by a HD-audio controller
- * driver that needs the interaction with graphics driver.
- *
- * This function initializes and sets up the audio component to communicate
- * with graphics driver.
- *
- * Unlike snd_hdac_i915_init(), this function doesn't synchronize with the
- * binding with the DRM component.  Each caller needs to sync via master_bind
- * audio_ops.
- *
- * Returns zero for success or a negative error code.
- */
-int snd_hdac_acomp_init(struct hdac_bus *bus,
-			const struct drm_audio_component_audio_ops *aops,
-			int (*match_master)(struct device *, int, void *),
-			size_t extra_size)
-{
-	struct component_match *match = NULL;
-	struct device *dev = bus->dev;
-	struct drm_audio_component *acomp;
-	int ret;
-
-	if (WARN_ON(hdac_get_acomp(dev)))
-		return -EBUSY;
-
-	acomp = devres_alloc(hdac_acomp_release, sizeof(*acomp) + extra_size,
-			     GFP_KERNEL);
-	if (!acomp)
-		return -ENOMEM;
-	acomp->audio_ops = aops;
-	bus->audio_component = acomp;
-	devres_add(dev, acomp);
-
-	component_match_add_typed(dev, &match, match_master, bus);
-	ret = component_master_add_with_match(dev, &hdac_component_master_ops,
-					      match);
-	if (ret < 0)
-		goto out_err;
-
-	return 0;
-
-out_err:
-	bus->audio_component = NULL;
-	devres_destroy(dev, hdac_acomp_release, NULL, NULL);
-	dev_info(dev, "failed to add audio component master (%d)\n", ret);
-
-	return ret;
-}
-EXPORT_SYMBOL_GPL(snd_hdac_acomp_init);
-
-/**
- * snd_hdac_acomp_exit - Finalize audio component
- * @bus: HDA core bus
- *
- * This function is supposed to be used only by a HD-audio controller
- * driver that needs the interaction with graphics driver.
- *
- * This function releases the audio component that has been used.
- *
- * Returns zero for success or a negative error code.
- */
-int snd_hdac_acomp_exit(struct hdac_bus *bus)
-{
-	struct device *dev = bus->dev;
-	struct drm_audio_component *acomp = bus->audio_component;
-
-	if (!acomp)
-		return 0;
-
-	if (WARN_ON(bus->display_power_active) && acomp->ops)
-		acomp->ops->put_power(acomp->dev, bus->display_power_active);
-
-	bus->display_power_active = 0;
-	bus->display_power_status = 0;
-
-	component_master_del(dev, &hdac_component_master_ops);
-
-	bus->audio_component = NULL;
-	devres_destroy(dev, hdac_acomp_release, NULL, NULL);
-
-	return 0;
-}
-EXPORT_SYMBOL_GPL(snd_hdac_acomp_exit);