Loading...
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// 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_dai_release(struct device *dev, void *res)
13{
14 snd_soc_unregister_dai(*(struct snd_soc_dai **)res);
15}
16
17/**
18 * devm_snd_soc_register_dai - resource-managed dai registration
19 * @dev: Device used to manage component
20 * @component: The component the DAIs are registered for
21 * @dai_drv: DAI driver to use for the DAI
22 * @legacy_dai_naming: if %true, use legacy single-name format;
23 * if %false, use multiple-name format;
24 */
25struct snd_soc_dai *devm_snd_soc_register_dai(struct device *dev,
26 struct snd_soc_component *component,
27 struct snd_soc_dai_driver *dai_drv,
28 bool legacy_dai_naming)
29{
30 struct snd_soc_dai **ptr;
31 struct snd_soc_dai *dai;
32
33 ptr = devres_alloc(devm_dai_release, sizeof(*ptr), GFP_KERNEL);
34 if (!ptr)
35 return NULL;
36
37 dai = snd_soc_register_dai(component, dai_drv, legacy_dai_naming);
38 if (dai) {
39 *ptr = dai;
40 devres_add(dev, ptr);
41 } else {
42 devres_free(ptr);
43 }
44
45 return dai;
46}
47EXPORT_SYMBOL_GPL(devm_snd_soc_register_dai);
48
49static void devm_component_release(struct device *dev, void *res)
50{
51 const struct snd_soc_component_driver **cmpnt_drv = res;
52
53 snd_soc_unregister_component_by_driver(dev, *cmpnt_drv);
54}
55
56/**
57 * devm_snd_soc_register_component - resource managed component registration
58 * @dev: Device used to manage component
59 * @cmpnt_drv: Component driver
60 * @dai_drv: DAI driver
61 * @num_dai: Number of DAIs to register
62 *
63 * Register a component with automatic unregistration when the device is
64 * unregistered.
65 */
66int devm_snd_soc_register_component(struct device *dev,
67 const struct snd_soc_component_driver *cmpnt_drv,
68 struct snd_soc_dai_driver *dai_drv, int num_dai)
69{
70 const struct snd_soc_component_driver **ptr;
71 int ret;
72
73 ptr = devres_alloc(devm_component_release, sizeof(*ptr), GFP_KERNEL);
74 if (!ptr)
75 return -ENOMEM;
76
77 ret = snd_soc_register_component(dev, cmpnt_drv, dai_drv, num_dai);
78 if (ret == 0) {
79 *ptr = cmpnt_drv;
80 devres_add(dev, ptr);
81 } else {
82 devres_free(ptr);
83 }
84
85 return ret;
86}
87EXPORT_SYMBOL_GPL(devm_snd_soc_register_component);
88
89static void devm_card_release(struct device *dev, void *res)
90{
91 snd_soc_unregister_card(*(struct snd_soc_card **)res);
92}
93
94/**
95 * devm_snd_soc_register_card - resource managed card registration
96 * @dev: Device used to manage card
97 * @card: Card to register
98 *
99 * Register a card with automatic unregistration when the device is
100 * unregistered.
101 */
102int devm_snd_soc_register_card(struct device *dev, struct snd_soc_card *card)
103{
104 struct snd_soc_card **ptr;
105 int ret;
106
107 ptr = devres_alloc(devm_card_release, sizeof(*ptr), GFP_KERNEL);
108 if (!ptr)
109 return -ENOMEM;
110
111 ret = snd_soc_register_card(card);
112 if (ret == 0) {
113 *ptr = card;
114 devres_add(dev, ptr);
115 } else {
116 devres_free(ptr);
117 }
118
119 return ret;
120}
121EXPORT_SYMBOL_GPL(devm_snd_soc_register_card);
122
123#ifdef CONFIG_SND_SOC_GENERIC_DMAENGINE_PCM
124
125static void devm_dmaengine_pcm_release(struct device *dev, void *res)
126{
127 snd_dmaengine_pcm_unregister(*(struct device **)res);
128}
129
130/**
131 * devm_snd_dmaengine_pcm_register - resource managed dmaengine PCM registration
132 * @dev: The parent device for the PCM device
133 * @config: Platform specific PCM configuration
134 * @flags: Platform specific quirks
135 *
136 * Register a dmaengine based PCM device with automatic unregistration when the
137 * device is unregistered.
138 */
139int devm_snd_dmaengine_pcm_register(struct device *dev,
140 const struct snd_dmaengine_pcm_config *config, unsigned int flags)
141{
142 struct device **ptr;
143 int ret;
144
145 ptr = devres_alloc(devm_dmaengine_pcm_release, sizeof(*ptr), GFP_KERNEL);
146 if (!ptr)
147 return -ENOMEM;
148
149 ret = snd_dmaengine_pcm_register(dev, config, flags);
150 if (ret == 0) {
151 *ptr = dev;
152 devres_add(dev, ptr);
153 } else {
154 devres_free(ptr);
155 }
156
157 return ret;
158}
159EXPORT_SYMBOL_GPL(devm_snd_dmaengine_pcm_register);
160
161#endif