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- // SPDX-License-Identifier: GPL-2.0+
- //
- // soc-devres.c -- ALSA SoC Audio Layer devres functions
- //
- // Copyright (C) 2013 Linaro Ltd
- #include <linux/module.h>
- #include <linux/moduleparam.h>
- #include <sound/soc.h>
- #include <sound/dmaengine_pcm.h>
- static void devm_dai_release(struct device *dev, void *res)
- {
- snd_soc_unregister_dai(*(struct snd_soc_dai **)res);
- }
- /**
- * devm_snd_soc_register_dai - resource-managed dai registration
- * @dev: Device used to manage component
- * @component: The component the DAIs are registered for
- * @dai_drv: DAI driver to use for the DAI
- * @legacy_dai_naming: if %true, use legacy single-name format;
- * if %false, use multiple-name format;
- */
- struct snd_soc_dai *devm_snd_soc_register_dai(struct device *dev,
- struct snd_soc_component *component,
- struct snd_soc_dai_driver *dai_drv,
- bool legacy_dai_naming)
- {
- struct snd_soc_dai **ptr;
- struct snd_soc_dai *dai;
- ptr = devres_alloc(devm_dai_release, sizeof(*ptr), GFP_KERNEL);
- if (!ptr)
- return NULL;
- dai = snd_soc_register_dai(component, dai_drv, legacy_dai_naming);
- if (dai) {
- *ptr = dai;
- devres_add(dev, ptr);
- } else {
- devres_free(ptr);
- }
- return dai;
- }
- EXPORT_SYMBOL_GPL(devm_snd_soc_register_dai);
- static void devm_component_release(struct device *dev, void *res)
- {
- const struct snd_soc_component_driver **cmpnt_drv = res;
- snd_soc_unregister_component_by_driver(dev, *cmpnt_drv);
- }
- /**
- * devm_snd_soc_register_component - resource managed component registration
- * @dev: Device used to manage component
- * @cmpnt_drv: Component driver
- * @dai_drv: DAI driver
- * @num_dai: Number of DAIs to register
- *
- * Register a component with automatic unregistration when the device is
- * unregistered.
- */
- int devm_snd_soc_register_component(struct device *dev,
- const struct snd_soc_component_driver *cmpnt_drv,
- struct snd_soc_dai_driver *dai_drv, int num_dai)
- {
- const struct snd_soc_component_driver **ptr;
- int ret;
- ptr = devres_alloc(devm_component_release, sizeof(*ptr), GFP_KERNEL);
- if (!ptr)
- return -ENOMEM;
- ret = snd_soc_register_component(dev, cmpnt_drv, dai_drv, num_dai);
- if (ret == 0) {
- *ptr = cmpnt_drv;
- devres_add(dev, ptr);
- } else {
- devres_free(ptr);
- }
- return ret;
- }
- EXPORT_SYMBOL_GPL(devm_snd_soc_register_component);
- static void devm_card_release(struct device *dev, void *res)
- {
- snd_soc_unregister_card(*(struct snd_soc_card **)res);
- }
- /**
- * devm_snd_soc_register_card - resource managed card registration
- * @dev: Device used to manage card
- * @card: Card to register
- *
- * Register a card with automatic unregistration when the device is
- * unregistered.
- */
- int devm_snd_soc_register_card(struct device *dev, struct snd_soc_card *card)
- {
- struct snd_soc_card **ptr;
- int ret;
- ptr = devres_alloc(devm_card_release, sizeof(*ptr), GFP_KERNEL);
- if (!ptr)
- return -ENOMEM;
- ret = snd_soc_register_card(card);
- if (ret == 0) {
- *ptr = card;
- devres_add(dev, ptr);
- } else {
- devres_free(ptr);
- }
- return ret;
- }
- EXPORT_SYMBOL_GPL(devm_snd_soc_register_card);
- #ifdef CONFIG_SND_SOC_GENERIC_DMAENGINE_PCM
- static void devm_dmaengine_pcm_release(struct device *dev, void *res)
- {
- snd_dmaengine_pcm_unregister(*(struct device **)res);
- }
- /**
- * devm_snd_dmaengine_pcm_register - resource managed dmaengine PCM registration
- * @dev: The parent device for the PCM device
- * @config: Platform specific PCM configuration
- * @flags: Platform specific quirks
- *
- * Register a dmaengine based PCM device with automatic unregistration when the
- * device is unregistered.
- */
- int devm_snd_dmaengine_pcm_register(struct device *dev,
- const struct snd_dmaengine_pcm_config *config, unsigned int flags)
- {
- struct device **ptr;
- int ret;
- ptr = devres_alloc(devm_dmaengine_pcm_release, sizeof(*ptr), GFP_KERNEL);
- if (!ptr)
- return -ENOMEM;
- ret = snd_dmaengine_pcm_register(dev, config, flags);
- if (ret == 0) {
- *ptr = dev;
- devres_add(dev, ptr);
- } else {
- devres_free(ptr);
- }
- return ret;
- }
- EXPORT_SYMBOL_GPL(devm_snd_dmaengine_pcm_register);
- #endif
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