projects / deliverable / linux.git / blame
| Commit | Line | Data |
|---|---|---|
| a0b03a61 MB |
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 | ||
| 16 | static void devm_component_release(struct device *dev, void *res) | |
| 17 | { | |
| 18 | snd_soc_unregister_component(*(struct device **)res); | |
| 19 | } | |
| 20 | ||
| 21 | /** | |
| 22 | * devm_snd_soc_register_component - resource managed component registration | |
| 23 | * @dev: Device used to manage component | |
| 24 | * @cmpnt_drv: Component driver | |
| 25 | * @dai_drv: DAI driver | |
| 26 | * @num_dai: Number of DAIs to register | |
| 27 | * | |
| 28 | * Register a component with automatic unregistration when the device is | |
| 29 | * unregistered. | |
| 30 | */ | |
| 31 | int devm_snd_soc_register_component(struct device *dev, | |
| 32 | const struct snd_soc_component_driver *cmpnt_drv, | |
| 33 | struct snd_soc_dai_driver *dai_drv, int num_dai) | |
| 34 | { | |
| 35 | struct device **ptr; | |
| 36 | int ret; | |
| 37 | ||
| 38 | ptr = devres_alloc(devm_component_release, sizeof(*ptr), GFP_KERNEL); | |
| 39 | if (!ptr) | |
| 40 | return -ENOMEM; | |
| 41 | ||
| 42 | ret = snd_soc_register_component(dev, cmpnt_drv, dai_drv, num_dai); | |
| 43 | if (ret == 0) { | |
| 44 | *ptr = dev; | |
| 45 | devres_add(dev, ptr); | |
| 46 | } else { | |
| 47 | devres_free(ptr); | |
| 48 | } | |
| 49 | ||
| 50 | return ret; | |
| 51 | } | |
| 52 | EXPORT_SYMBOL_GPL(devm_snd_soc_register_component); | |
| 0e4ff5c8 MB |
53 | |
| 54 | static void devm_card_release(struct device *dev, void *res) | |
| 55 | { | |
| 56 | snd_soc_unregister_card(*(struct snd_soc_card **)res); | |
| 57 | } | |
| 58 | ||
| 59 | /** | |
| 60 | * devm_snd_soc_register_card - resource managed card registration | |
| 61 | * @dev: Device used to manage card | |
| 62 | * @card: Card to register | |
| 63 | * | |
| 64 | * Register a card with automatic unregistration when the device is | |
| 65 | * unregistered. | |
| 66 | */ | |
| 67 | int devm_snd_soc_register_card(struct device *dev, struct snd_soc_card *card) | |
| 68 | { | |
| 69 | struct device **ptr; | |
| 70 | int ret; | |
| 71 | ||
| 72 | ptr = devres_alloc(devm_card_release, sizeof(*ptr), GFP_KERNEL); | |
| 73 | if (!ptr) | |
| 74 | return -ENOMEM; | |
| 75 | ||
| 76 | ret = snd_soc_register_card(card); | |
| 77 | if (ret == 0) { | |
| 78 | *ptr = dev; | |
| 79 | devres_add(dev, ptr); | |
| 80 | } else { | |
| 81 | devres_free(ptr); | |
| 82 | } | |
| 83 | ||
| 84 | return ret; | |
| 85 | } | |
| 86 | EXPORT_SYMBOL_GPL(devm_snd_soc_register_card); |