This patch implements device tree support for tagra board with ALC5632 codec.

Signed-off-by: Leon Romanovsky leon@leon.nu --- sound/soc/tegra/tegra_alc5632.c | 78 ++++++++++++++++++++++++++++++++++---- 1 files changed, 69 insertions(+), 9 deletions(-)

diff --git a/sound/soc/tegra/tegra_alc5632.c b/sound/soc/tegra/tegra_alc5632.c index 4a0e805..c0ba1e4 100644 --- a/sound/soc/tegra/tegra_alc5632.c +++ b/sound/soc/tegra/tegra_alc5632.c @@ -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);