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ASoC: Tegra+ALC5632: Implement device tree support in board file

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This patch implements device tree support for Tegra boards with ALC5632
codec.

Signed-off-by: Leon Romanovsky <leon@leon.nu>
Acked-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
This commit is contained in:
Leon Romanovsky 2012-01-31 09:26:59 +02:00 committed by Mark Brown
parent f959dee9c7
commit b4dc0a75af
1 changed files with 69 additions and 9 deletions
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78
sound/soc/tegra/tegra_alc5632.c
View file

@ -36,6 +36,7 @@
struct tegra_alc5632 {
struct tegra_asoc_utils_data util_data;
struct platform_device *pcm_dev;
};
static int tegra_alc5632_asoc_hw_params(struct snd_pcm_substream *substream,
@ -128,9 +129,7 @@ static int tegra_alc5632_asoc_init(struct snd_soc_pcm_runtime *rtd)
static struct snd_soc_dai_link tegra_alc5632_dai = {
.name = "ALC5632",
.stream_name = "ALC5632 PCM",
.codec_name = "alc5632.0-001e",
.platform_name = "tegra-pcm-audio",
.cpu_dai_name = "tegra-i2s.0",
.codec_dai_name = "alc5632-hifi",
.init = tegra_alc5632_asoc_init,
.ops = &tegra_alc5632_asoc_ops,
@ -163,26 +162,78 @@ static __devinit int tegra_alc5632_probe(struct platform_device *pdev)
sizeof(struct tegra_alc5632), GFP_KERNEL);
if (!alc5632) {
dev_err(&pdev->dev, "Can't allocate tegra_alc5632\n");
return -ENOMEM;
ret = -ENOMEM;
goto err;
}
ret = tegra_asoc_utils_init(&alc5632->util_data, &pdev->dev);
if (ret)
return ret;
card->dev = &pdev->dev;
platform_set_drvdata(pdev, card);
snd_soc_card_set_drvdata(card, alc5632);
alc5632->pcm_dev = ERR_PTR(-EINVAL);
if (!(pdev->dev.of_node)) {
dev_err(&pdev->dev, "Must be instantiated using device tree\n");
ret = -EINVAL;
goto err;
}
ret = snd_soc_of_parse_card_name(card, "nvidia,model");
if (ret)
goto err;
ret = snd_soc_of_parse_audio_routing(card, "nvidia,audio-routing");
if (ret)
goto err;
tegra_alc5632_dai.codec_of_node = of_parse_phandle(
pdev->dev.of_node, "nvidia,audio-codec", 0);
if (!tegra_alc5632_dai.codec_of_node) {
dev_err(&pdev->dev,
"Property 'nvidia,audio-codec' missing or invalid\n");
ret = -EINVAL;
goto err;
}
tegra_alc5632_dai.cpu_dai_of_node = of_parse_phandle(
pdev->dev.of_node, "nvidia,i2s-controller", 0);
if (!tegra_alc5632_dai.cpu_dai_of_node) {
dev_err(&pdev->dev,
"Property 'nvidia,i2s-controller' missing or invalid\n");
ret = -EINVAL;
goto err;
}
alc5632->pcm_dev = platform_device_register_simple(
"tegra-pcm-audio", -1, NULL, 0);
if (IS_ERR(alc5632->pcm_dev)) {
dev_err(&pdev->dev,
"Can't instantiate tegra-pcm-audio\n");
ret = PTR_ERR(alc5632->pcm_dev);
goto err;
}
ret = tegra_asoc_utils_init(&alc5632->util_data, &pdev->dev);
if (ret)
goto err_unregister;
ret = snd_soc_register_card(card);
if (ret) {
dev_err(&pdev->dev, "snd_soc_register_card failed (%d)\n",
ret);
tegra_asoc_utils_fini(&alc5632->util_data);
return ret;
goto err_fini_utils;
}
return 0;
err_fini_utils:
tegra_asoc_utils_fini(&alc5632->util_data);
err_unregister:
if (!IS_ERR(alc5632->pcm_dev))
platform_device_unregister(alc5632->pcm_dev);
err:
return ret;
}
static int __devexit tegra_alc5632_remove(struct platform_device *pdev)
@ -193,15 +244,23 @@ static int __devexit tegra_alc5632_remove(struct platform_device *pdev)
snd_soc_unregister_card(card);
tegra_asoc_utils_fini(&alc5632->util_data);
if (!IS_ERR(alc5632->pcm_dev))
platform_device_unregister(alc5632->pcm_dev);
return 0;
}
static const struct of_device_id tegra_alc5632_of_match[] __devinitconst = {
{ .compatible = "nvidia,tegra-audio-alc5632", },
{},
};
static struct platform_driver tegra_alc5632_driver = {
.driver = {
.name = DRV_NAME,
.owner = THIS_MODULE,
.pm = &snd_soc_pm_ops,
.of_match_table = tegra_alc5632_of_match,
},
.probe = tegra_alc5632_probe,
.remove = __devexit_p(tegra_alc5632_remove),
@ -212,3 +271,4 @@ MODULE_AUTHOR("Leon Romanovsky <leon@leon.nu>");
MODULE_DESCRIPTION("Tegra+ALC5632 machine ASoC driver");
MODULE_LICENSE("GPL");
MODULE_ALIAS("platform:" DRV_NAME);
MODULE_DEVICE_TABLE(of, tegra_alc5632_of_match);