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_component_release(struct device *dev, void *res)
13{
14 const struct snd_soc_component_driver **cmpnt_drv = res;
15
16 snd_soc_unregister_component_by_driver(dev, *cmpnt_drv);
17}
18
19/**
20 * devm_snd_soc_register_component - resource managed component registration
21 * @dev: Device used to manage component
22 * @cmpnt_drv: Component driver
23 * @dai_drv: DAI driver
24 * @num_dai: Number of DAIs to register
25 *
26 * Register a component with automatic unregistration when the device is
27 * unregistered.
28 */
29int devm_snd_soc_register_component(struct device *dev,
30 const struct snd_soc_component_driver *cmpnt_drv,
31 struct snd_soc_dai_driver *dai_drv, int num_dai)
32{
33 const struct snd_soc_component_driver **ptr;
34 int ret;
35
36 ptr = devres_alloc(devm_component_release, sizeof(*ptr), GFP_KERNEL);
37 if (!ptr)
38 return -ENOMEM;
39
40 ret = snd_soc_register_component(dev, cmpnt_drv, dai_drv, num_dai);
41 if (ret == 0) {
42 *ptr = cmpnt_drv;
43 devres_add(dev, ptr);
44 } else {
45 devres_free(ptr);
46 }
47
48 return ret;
49}
50EXPORT_SYMBOL_GPL(devm_snd_soc_register_component);
51
52static void devm_card_release(struct device *dev, void *res)
53{
54 snd_soc_unregister_card(*(struct snd_soc_card **)res);
55}
56
57/**
58 * devm_snd_soc_register_card - resource managed card registration
59 * @dev: Device used to manage card
60 * @card: Card to register
61 *
62 * Register a card with automatic unregistration when the device is
63 * unregistered.
64 */
65int devm_snd_soc_register_card(struct device *dev, struct snd_soc_card *card)
66{
67 struct snd_soc_card **ptr;
68 int ret;
69
70 ptr = devres_alloc(devm_card_release, sizeof(*ptr), GFP_KERNEL);
71 if (!ptr)
72 return -ENOMEM;
73
74 ret = snd_soc_register_card(card);
75 if (ret == 0) {
76 *ptr = card;
77 devres_add(dev, ptr);
78 } else {
79 devres_free(ptr);
80 }
81
82 return ret;
83}
84EXPORT_SYMBOL_GPL(devm_snd_soc_register_card);
85
86#ifdef CONFIG_SND_SOC_GENERIC_DMAENGINE_PCM
87
88static void devm_dmaengine_pcm_release(struct device *dev, void *res)
89{
90 snd_dmaengine_pcm_unregister(*(struct device **)res);
91}
92
93/**
94 * devm_snd_dmaengine_pcm_register - resource managed dmaengine PCM registration
95 * @dev: The parent device for the PCM device
96 * @config: Platform specific PCM configuration
97 * @flags: Platform specific quirks
98 *
99 * Register a dmaengine based PCM device with automatic unregistration when the
100 * device is unregistered.
101 */
102int devm_snd_dmaengine_pcm_register(struct device *dev,
103 const struct snd_dmaengine_pcm_config *config, unsigned int flags)
104{
105 struct device **ptr;
106 int ret;
107
108 ptr = devres_alloc(devm_dmaengine_pcm_release, sizeof(*ptr), GFP_KERNEL);
109 if (!ptr)
110 return -ENOMEM;
111
112 ret = snd_dmaengine_pcm_register(dev, config, flags);
113 if (ret == 0) {
114 *ptr = dev;
115 devres_add(dev, ptr);
116 } else {
117 devres_free(ptr);
118 }
119
120 return ret;
121}
122EXPORT_SYMBOL_GPL(devm_snd_dmaengine_pcm_register);
123
124#endif