diff options
Diffstat (limited to 'sound/soc/samsung/odroidx2_max98090.c')
| -rw-r--r-- | sound/soc/samsung/odroidx2_max98090.c | 177 |
1 files changed, 177 insertions, 0 deletions
diff --git a/sound/soc/samsung/odroidx2_max98090.c b/sound/soc/samsung/odroidx2_max98090.c new file mode 100644 index 000000000000..278edf9e2a87 --- /dev/null +++ b/sound/soc/samsung/odroidx2_max98090.c @@ -0,0 +1,177 @@ +/* + * Copyright (C) 2014 Samsung Electronics Co., Ltd. + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2 of the License, or (at your + * option) any later version. + */ + +#include <linux/of.h> +#include <linux/module.h> +#include <sound/soc.h> +#include <sound/pcm_params.h> +#include "i2s.h" + +struct odroidx2_drv_data { + const struct snd_soc_dapm_widget *dapm_widgets; + unsigned int num_dapm_widgets; +}; + +/* The I2S CDCLK output clock frequency for the MAX98090 codec */ +#define MAX98090_MCLK 19200000 + +static int odroidx2_late_probe(struct snd_soc_card *card) +{ + struct snd_soc_dai *codec_dai = card->rtd[0].codec_dai; + struct snd_soc_dai *cpu_dai = card->rtd[0].cpu_dai; + int ret; + + ret = snd_soc_dai_set_sysclk(codec_dai, 0, MAX98090_MCLK, + SND_SOC_CLOCK_IN); + if (ret < 0) + return ret; + + /* Set the cpu DAI configuration in order to use CDCLK */ + return snd_soc_dai_set_sysclk(cpu_dai, SAMSUNG_I2S_CDCLK, + 0, SND_SOC_CLOCK_OUT); +} + +static const struct snd_soc_dapm_widget odroidx2_dapm_widgets[] = { + SND_SOC_DAPM_HP("Headphone Jack", NULL), + SND_SOC_DAPM_MIC("Mic Jack", NULL), + SND_SOC_DAPM_MIC("DMIC", NULL), +}; + +static const struct snd_soc_dapm_widget odroidu3_dapm_widgets[] = { + SND_SOC_DAPM_HP("Headphone Jack", NULL), + SND_SOC_DAPM_SPK("Speakers", NULL), +}; + +static struct snd_soc_dai_link odroidx2_dai[] = { + { + .name = "MAX98090", + .stream_name = "MAX98090 PCM", + .codec_dai_name = "HiFi", + .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF | + SND_SOC_DAIFMT_CBM_CFM, + } +}; + +static struct snd_soc_card odroidx2 = { + .owner = THIS_MODULE, + .dai_link = odroidx2_dai, + .num_links = ARRAY_SIZE(odroidx2_dai), + .fully_routed = true, + .late_probe = odroidx2_late_probe, +}; + +struct odroidx2_drv_data odroidx2_drvdata = { + .dapm_widgets = odroidx2_dapm_widgets, + .num_dapm_widgets = ARRAY_SIZE(odroidx2_dapm_widgets), +}; + +struct odroidx2_drv_data odroidu3_drvdata = { + .dapm_widgets = odroidu3_dapm_widgets, + .num_dapm_widgets = ARRAY_SIZE(odroidu3_dapm_widgets), +}; + +static const struct of_device_id odroidx2_audio_of_match[] = { + { + .compatible = "samsung,odroidx2-audio", + .data = &odroidx2_drvdata, + }, { + .compatible = "samsung,odroidu3-audio", + .data = &odroidu3_drvdata, + }, + { }, +}; +MODULE_DEVICE_TABLE(of, odroidx2_audio_of_match); + +static int odroidx2_audio_probe(struct platform_device *pdev) +{ + struct device_node *snd_node = pdev->dev.of_node; + struct snd_soc_card *card = &odroidx2; + struct device_node *i2s_node, *codec_node; + struct odroidx2_drv_data *dd; + const struct of_device_id *of_id; + int ret; + + of_id = of_match_node(odroidx2_audio_of_match, snd_node); + dd = (struct odroidx2_drv_data *)of_id->data; + + card->num_dapm_widgets = dd->num_dapm_widgets; + card->dapm_widgets = dd->dapm_widgets; + + card->dev = &pdev->dev; + + ret = snd_soc_of_parse_card_name(card, "samsung,model"); + if (ret < 0) + return ret; + + ret = snd_soc_of_parse_audio_routing(card, "samsung,audio-routing"); + if (ret < 0) + return ret; + + codec_node = of_parse_phandle(snd_node, "samsung,audio-codec", 0); + if (!codec_node) { + dev_err(&pdev->dev, + "Failed parsing samsung,i2s-codec property\n"); + return -EINVAL; + } + + i2s_node = of_parse_phandle(snd_node, "samsung,i2s-controller", 0); + if (!i2s_node) { + dev_err(&pdev->dev, + "Failed parsing samsung,i2s-controller property\n"); + ret = -EINVAL; + goto err_put_codec_n; + } + + odroidx2_dai[0].codec_of_node = codec_node; + odroidx2_dai[0].cpu_of_node = i2s_node; + odroidx2_dai[0].platform_of_node = i2s_node; + + ret = snd_soc_register_card(card); + if (ret) { + dev_err(&pdev->dev, "snd_soc_register_card() failed: %d\n", + ret); + goto err_put_i2s_n; + } + return 0; + +err_put_i2s_n: + of_node_put(i2s_node); +err_put_codec_n: + of_node_put(codec_node); + return ret; +} + +static int odroidx2_audio_remove(struct platform_device *pdev) +{ + struct snd_soc_card *card = platform_get_drvdata(pdev); + + snd_soc_unregister_card(card); + + of_node_put((struct device_node *)odroidx2_dai[0].cpu_of_node); + of_node_put((struct device_node *)odroidx2_dai[0].codec_of_node); + + return 0; +} + +static struct platform_driver odroidx2_audio_driver = { + .driver = { + .name = "odroidx2-audio", + .owner = THIS_MODULE, + .of_match_table = odroidx2_audio_of_match, + .pm = &snd_soc_pm_ops, + }, + .probe = odroidx2_audio_probe, + .remove = odroidx2_audio_remove, +}; +module_platform_driver(odroidx2_audio_driver); + +MODULE_AUTHOR("Chen Zhen <zhen1.chen@samsung.com>"); +MODULE_AUTHOR("Sylwester Nawrocki <s.nawrocki@samsung.com>"); +MODULE_DESCRIPTION("ALSA SoC Odroid X2/U3 Audio Support"); +MODULE_LICENSE("GPL v2"); |