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1// SPDX-License-Identifier: GPL-2.0+
2//
3// soc-devres.c -- ALSA SoC Audio Layer devres functions
4//
5// Copyright (C) 2013 Linaro Ltd
6
7#include <linux/module.h>
8#include <linux/moduleparam.h>
9#include <sound/soc.h>
10#include <sound/dmaengine_pcm.h>
11
12static void devm_component_release(struct device *dev, void *res)
13{
14 snd_soc_unregister_component(*(struct device **)res);
15}
16
17/**
18 * devm_snd_soc_register_component - resource managed component registration
19 * @dev: Device used to manage component
20 * @cmpnt_drv: Component driver
21 * @dai_drv: DAI driver
22 * @num_dai: Number of DAIs to register
23 *
24 * Register a component with automatic unregistration when the device is
25 * unregistered.
26 */
27int devm_snd_soc_register_component(struct device *dev,
28 const struct snd_soc_component_driver *cmpnt_drv,
29 struct snd_soc_dai_driver *dai_drv, int num_dai)
30{
31 struct device **ptr;
32 int ret;
33
34 ptr = devres_alloc(devm_component_release, sizeof(*ptr), GFP_KERNEL);
35 if (!ptr)
36 return -ENOMEM;
37
38 ret = snd_soc_register_component(dev, cmpnt_drv, dai_drv, num_dai);
39 if (ret == 0) {
40 *ptr = dev;
41 devres_add(dev, ptr);
42 } else {
43 devres_free(ptr);
44 }
45
46 return ret;
47}
48EXPORT_SYMBOL_GPL(devm_snd_soc_register_component);
49
50static void devm_card_release(struct device *dev, void *res)
51{
52 snd_soc_unregister_card(*(struct snd_soc_card **)res);
53}
54
55/**
56 * devm_snd_soc_register_card - resource managed card registration
57 * @dev: Device used to manage card
58 * @card: Card to register
59 *
60 * Register a card with automatic unregistration when the device is
61 * unregistered.
62 */
63int devm_snd_soc_register_card(struct device *dev, struct snd_soc_card *card)
64{
65 struct snd_soc_card **ptr;
66 int ret;
67
68 ptr = devres_alloc(devm_card_release, sizeof(*ptr), GFP_KERNEL);
69 if (!ptr)
70 return -ENOMEM;
71
72 ret = snd_soc_register_card(card);
73 if (ret == 0) {
74 *ptr = card;
75 devres_add(dev, ptr);
76 } else {
77 devres_free(ptr);
78 }
79
80 return ret;
81}
82EXPORT_SYMBOL_GPL(devm_snd_soc_register_card);
83
84#ifdef CONFIG_SND_SOC_GENERIC_DMAENGINE_PCM
85
86static void devm_dmaengine_pcm_release(struct device *dev, void *res)
87{
88 snd_dmaengine_pcm_unregister(*(struct device **)res);
89}
90
91/**
92 * devm_snd_dmaengine_pcm_register - resource managed dmaengine PCM registration
93 * @dev: The parent device for the PCM device
94 * @config: Platform specific PCM configuration
95 * @flags: Platform specific quirks
96 *
97 * Register a dmaengine based PCM device with automatic unregistration when the
98 * device is unregistered.
99 */
100int devm_snd_dmaengine_pcm_register(struct device *dev,
101 const struct snd_dmaengine_pcm_config *config, unsigned int flags)
102{
103 struct device **ptr;
104 int ret;
105
106 ptr = devres_alloc(devm_dmaengine_pcm_release, sizeof(*ptr), GFP_KERNEL);
107 if (!ptr)
108 return -ENOMEM;
109
110 ret = snd_dmaengine_pcm_register(dev, config, flags);
111 if (ret == 0) {
112 *ptr = dev;
113 devres_add(dev, ptr);
114 } else {
115 devres_free(ptr);
116 }
117
118 return ret;
119}
120EXPORT_SYMBOL_GPL(devm_snd_dmaengine_pcm_register);
121
122#endif
1/*
2 * soc-devres.c -- ALSA SoC Audio Layer devres functions
3 *
4 * Copyright (C) 2013 Linaro Ltd
5 *
6 * This program is free software; you can redistribute it and/or modify it
7 * under the terms of the GNU General Public License as published by the
8 * Free Software Foundation; either version 2 of the License, or (at your
9 * option) any later version.
10 */
11
12#include <linux/module.h>
13#include <linux/moduleparam.h>
14#include <sound/soc.h>
15#include <sound/dmaengine_pcm.h>
16
17static void devm_component_release(struct device *dev, void *res)
18{
19 snd_soc_unregister_component(*(struct device **)res);
20}
21
22/**
23 * devm_snd_soc_register_component - resource managed component registration
24 * @dev: Device used to manage component
25 * @cmpnt_drv: Component driver
26 * @dai_drv: DAI driver
27 * @num_dai: Number of DAIs to register
28 *
29 * Register a component with automatic unregistration when the device is
30 * unregistered.
31 */
32int devm_snd_soc_register_component(struct device *dev,
33 const struct snd_soc_component_driver *cmpnt_drv,
34 struct snd_soc_dai_driver *dai_drv, int num_dai)
35{
36 struct device **ptr;
37 int ret;
38
39 ptr = devres_alloc(devm_component_release, sizeof(*ptr), GFP_KERNEL);
40 if (!ptr)
41 return -ENOMEM;
42
43 ret = snd_soc_register_component(dev, cmpnt_drv, dai_drv, num_dai);
44 if (ret == 0) {
45 *ptr = dev;
46 devres_add(dev, ptr);
47 } else {
48 devres_free(ptr);
49 }
50
51 return ret;
52}
53EXPORT_SYMBOL_GPL(devm_snd_soc_register_component);
54
55static void devm_platform_release(struct device *dev, void *res)
56{
57 snd_soc_unregister_platform(*(struct device **)res);
58}
59
60/**
61 * devm_snd_soc_register_platform - resource managed platform registration
62 * @dev: Device used to manage platform
63 * @platform_drv: platform to register
64 *
65 * Register a platform driver with automatic unregistration when the device is
66 * unregistered.
67 */
68int devm_snd_soc_register_platform(struct device *dev,
69 const struct snd_soc_platform_driver *platform_drv)
70{
71 struct device **ptr;
72 int ret;
73
74 ptr = devres_alloc(devm_platform_release, sizeof(*ptr), GFP_KERNEL);
75 if (!ptr)
76 return -ENOMEM;
77
78 ret = snd_soc_register_platform(dev, platform_drv);
79 if (ret == 0) {
80 *ptr = dev;
81 devres_add(dev, ptr);
82 } else {
83 devres_free(ptr);
84 }
85
86 return ret;
87}
88EXPORT_SYMBOL_GPL(devm_snd_soc_register_platform);
89
90static void devm_card_release(struct device *dev, void *res)
91{
92 snd_soc_unregister_card(*(struct snd_soc_card **)res);
93}
94
95/**
96 * devm_snd_soc_register_card - resource managed card registration
97 * @dev: Device used to manage card
98 * @card: Card to register
99 *
100 * Register a card with automatic unregistration when the device is
101 * unregistered.
102 */
103int devm_snd_soc_register_card(struct device *dev, struct snd_soc_card *card)
104{
105 struct snd_soc_card **ptr;
106 int ret;
107
108 ptr = devres_alloc(devm_card_release, sizeof(*ptr), GFP_KERNEL);
109 if (!ptr)
110 return -ENOMEM;
111
112 ret = snd_soc_register_card(card);
113 if (ret == 0) {
114 *ptr = card;
115 devres_add(dev, ptr);
116 } else {
117 devres_free(ptr);
118 }
119
120 return ret;
121}
122EXPORT_SYMBOL_GPL(devm_snd_soc_register_card);
123
124#ifdef CONFIG_SND_SOC_GENERIC_DMAENGINE_PCM
125
126static void devm_dmaengine_pcm_release(struct device *dev, void *res)
127{
128 snd_dmaengine_pcm_unregister(*(struct device **)res);
129}
130
131/**
132 * devm_snd_dmaengine_pcm_register - resource managed dmaengine PCM registration
133 * @dev: The parent device for the PCM device
134 * @config: Platform specific PCM configuration
135 * @flags: Platform specific quirks
136 *
137 * Register a dmaengine based PCM device with automatic unregistration when the
138 * device is unregistered.
139 */
140int devm_snd_dmaengine_pcm_register(struct device *dev,
141 const struct snd_dmaengine_pcm_config *config, unsigned int flags)
142{
143 struct device **ptr;
144 int ret;
145
146 ptr = devres_alloc(devm_dmaengine_pcm_release, sizeof(*ptr), GFP_KERNEL);
147 if (!ptr)
148 return -ENOMEM;
149
150 ret = snd_dmaengine_pcm_register(dev, config, flags);
151 if (ret == 0) {
152 *ptr = dev;
153 devres_add(dev, ptr);
154 } else {
155 devres_free(ptr);
156 }
157
158 return ret;
159}
160EXPORT_SYMBOL_GPL(devm_snd_dmaengine_pcm_register);
161
162#endif