mirror of
https://github.com/torvalds/linux.git
synced 2024-11-15 00:21:59 +00:00
e244bb9bc1
Current simple-card returns error if DAI doesn't support .set_fmt callback. But the error is -ENOTSUPP (= not supported), and it is not error. This patch avoids such case Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com> Signed-off-by: Mark Brown <broonie@linaro.org>
125 lines
3.1 KiB
C
125 lines
3.1 KiB
C
/*
|
|
* ASoC simple sound card support
|
|
*
|
|
* Copyright (C) 2012 Renesas Solutions Corp.
|
|
* Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
|
|
*
|
|
* This program is free software; you can redistribute it and/or modify
|
|
* it under the terms of the GNU General Public License version 2 as
|
|
* published by the Free Software Foundation.
|
|
*/
|
|
|
|
#include <linux/platform_device.h>
|
|
#include <linux/module.h>
|
|
#include <sound/simple_card.h>
|
|
|
|
#define asoc_simple_get_card_info(p) \
|
|
container_of(p->dai_link, struct asoc_simple_card_info, snd_link)
|
|
|
|
static int __asoc_simple_card_dai_init(struct snd_soc_dai *dai,
|
|
struct asoc_simple_dai *set,
|
|
unsigned int daifmt)
|
|
{
|
|
int ret = 0;
|
|
|
|
daifmt |= set->fmt;
|
|
|
|
if (!ret && daifmt)
|
|
ret = snd_soc_dai_set_fmt(dai, daifmt);
|
|
|
|
if (ret == -ENOTSUPP) {
|
|
dev_dbg(dai->dev, "ASoC: set_fmt is not supported\n");
|
|
ret = 0;
|
|
}
|
|
|
|
if (!ret && set->sysclk)
|
|
ret = snd_soc_dai_set_sysclk(dai, 0, set->sysclk, 0);
|
|
|
|
return ret;
|
|
}
|
|
|
|
static int asoc_simple_card_dai_init(struct snd_soc_pcm_runtime *rtd)
|
|
{
|
|
struct asoc_simple_card_info *info = asoc_simple_get_card_info(rtd);
|
|
struct snd_soc_dai *codec = rtd->codec_dai;
|
|
struct snd_soc_dai *cpu = rtd->cpu_dai;
|
|
unsigned int daifmt = info->daifmt;
|
|
int ret;
|
|
|
|
ret = __asoc_simple_card_dai_init(codec, &info->codec_dai, daifmt);
|
|
if (ret < 0)
|
|
return ret;
|
|
|
|
ret = __asoc_simple_card_dai_init(cpu, &info->cpu_dai, daifmt);
|
|
if (ret < 0)
|
|
return ret;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int asoc_simple_card_probe(struct platform_device *pdev)
|
|
{
|
|
struct asoc_simple_card_info *cinfo = pdev->dev.platform_data;
|
|
struct device *dev = &pdev->dev;
|
|
|
|
if (!cinfo) {
|
|
dev_err(dev, "no info for asoc-simple-card\n");
|
|
return -EINVAL;
|
|
}
|
|
|
|
if (!cinfo->name ||
|
|
!cinfo->card ||
|
|
!cinfo->codec ||
|
|
!cinfo->platform ||
|
|
!cinfo->cpu_dai.name ||
|
|
!cinfo->codec_dai.name) {
|
|
dev_err(dev, "insufficient asoc_simple_card_info settings\n");
|
|
return -EINVAL;
|
|
}
|
|
|
|
/*
|
|
* init snd_soc_dai_link
|
|
*/
|
|
cinfo->snd_link.name = cinfo->name;
|
|
cinfo->snd_link.stream_name = cinfo->name;
|
|
cinfo->snd_link.cpu_dai_name = cinfo->cpu_dai.name;
|
|
cinfo->snd_link.platform_name = cinfo->platform;
|
|
cinfo->snd_link.codec_name = cinfo->codec;
|
|
cinfo->snd_link.codec_dai_name = cinfo->codec_dai.name;
|
|
cinfo->snd_link.init = asoc_simple_card_dai_init;
|
|
|
|
/*
|
|
* init snd_soc_card
|
|
*/
|
|
cinfo->snd_card.name = cinfo->card;
|
|
cinfo->snd_card.owner = THIS_MODULE;
|
|
cinfo->snd_card.dai_link = &cinfo->snd_link;
|
|
cinfo->snd_card.num_links = 1;
|
|
cinfo->snd_card.dev = &pdev->dev;
|
|
|
|
return snd_soc_register_card(&cinfo->snd_card);
|
|
}
|
|
|
|
static int asoc_simple_card_remove(struct platform_device *pdev)
|
|
{
|
|
struct asoc_simple_card_info *cinfo = pdev->dev.platform_data;
|
|
|
|
return snd_soc_unregister_card(&cinfo->snd_card);
|
|
}
|
|
|
|
static struct platform_driver asoc_simple_card = {
|
|
.driver = {
|
|
.name = "asoc-simple-card",
|
|
.owner = THIS_MODULE,
|
|
},
|
|
.probe = asoc_simple_card_probe,
|
|
.remove = asoc_simple_card_remove,
|
|
};
|
|
|
|
module_platform_driver(asoc_simple_card);
|
|
|
|
MODULE_ALIAS("platform:asoc-simple-card");
|
|
MODULE_LICENSE("GPL");
|
|
MODULE_DESCRIPTION("ASoC Simple Sound Card");
|
|
MODULE_AUTHOR("Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>");
|