Release 4.7 sound/soc/soc-devres.c
/*
* soc-devres.c -- ALSA SoC Audio Layer devres functions
*
* Copyright (C) 2013 Linaro Ltd
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by the
* Free Software Foundation; either version 2 of the License, or (at your
* option) any later version.
*/
#include <linux/module.h>
#include <linux/moduleparam.h>
#include <sound/soc.h>
#include <sound/dmaengine_pcm.h>
static void devm_component_release(struct device *dev, void *res)
{
snd_soc_unregister_component(*(struct device **)res);
}
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/**
* 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)
{
struct device **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 = dev;
devres_add(dev, ptr);
} else {
devres_free(ptr);
}
return ret;
}
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EXPORT_SYMBOL_GPL(devm_snd_soc_register_component);
static void devm_platform_release(struct device *dev, void *res)
{
snd_soc_unregister_platform(*(struct device **)res);
}
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/**
* devm_snd_soc_register_platform - resource managed platform registration
* @dev: Device used to manage platform
* @platform_drv: platform to register
*
* Register a platform driver with automatic unregistration when the device is
* unregistered.
*/
int devm_snd_soc_register_platform(struct device *dev,
const struct snd_soc_platform_driver *platform_drv)
{
struct device **ptr;
int ret;
ptr = devres_alloc(devm_platform_release, sizeof(*ptr), GFP_KERNEL);
if (!ptr)
return -ENOMEM;
ret = snd_soc_register_platform(dev, platform_drv);
if (ret == 0) {
*ptr = dev;
devres_add(dev, ptr);
} else {
devres_free(ptr);
}
return ret;
}
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EXPORT_SYMBOL_GPL(devm_snd_soc_register_platform);
static void devm_card_release(struct device *dev, void *res)
{
snd_soc_unregister_card(*(struct snd_soc_card **)res);
}
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/**
* 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;
}
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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);
}
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/**
* 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;
}
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EXPORT_SYMBOL_GPL(devm_snd_dmaengine_pcm_register);
#endif
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