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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
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_card_release(struct device *dev, void *res)
56{
57 snd_soc_unregister_card(*(struct snd_soc_card **)res);
58}
59
60/**
61 * devm_snd_soc_register_card - resource managed card registration
62 * @dev: Device used to manage card
63 * @card: Card to register
64 *
65 * Register a card with automatic unregistration when the device is
66 * unregistered.
67 */
68int devm_snd_soc_register_card(struct device *dev, struct snd_soc_card *card)
69{
70 struct snd_soc_card **ptr;
71 int ret;
72
73 ptr = devres_alloc(devm_card_release, sizeof(*ptr), GFP_KERNEL);
74 if (!ptr)
75 return -ENOMEM;
76
77 ret = snd_soc_register_card(card);
78 if (ret == 0) {
79 *ptr = card;
80 devres_add(dev, ptr);
81 } else {
82 devres_free(ptr);
83 }
84
85 return ret;
86}
87EXPORT_SYMBOL_GPL(devm_snd_soc_register_card);
88
89#ifdef CONFIG_SND_SOC_GENERIC_DMAENGINE_PCM
90
91static void devm_dmaengine_pcm_release(struct device *dev, void *res)
92{
93 snd_dmaengine_pcm_unregister(*(struct device **)res);
94}
95
96/**
97 * devm_snd_dmaengine_pcm_register - resource managed dmaengine PCM registration
98 * @dev: The parent device for the PCM device
99 * @config: Platform specific PCM configuration
100 * @flags: Platform specific quirks
101 *
102 * Register a dmaengine based PCM device with automatic unregistration when the
103 * device is unregistered.
104 */
105int devm_snd_dmaengine_pcm_register(struct device *dev,
106 const struct snd_dmaengine_pcm_config *config, unsigned int flags)
107{
108 struct device **ptr;
109 int ret;
110
111 ptr = devres_alloc(devm_dmaengine_pcm_release, sizeof(*ptr), GFP_KERNEL);
112 if (!ptr)
113 return -ENOMEM;
114
115 ret = snd_dmaengine_pcm_register(dev, config, flags);
116 if (ret == 0) {
117 *ptr = dev;
118 devres_add(dev, ptr);
119 } else {
120 devres_free(ptr);
121 }
122
123 return ret;
124}
125EXPORT_SYMBOL_GPL(devm_snd_dmaengine_pcm_register);
126
127#endif