--- /dev/null
+/*
+ * 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 struct snd_soc_dai_link odroidx2_dai[];
+
+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 || of_find_property(odroidx2_dai[0].codec_of_node,
+ "clocks", NULL))
+ 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,
+};
+
+static const struct odroidx2_drv_data odroidx2_drvdata = {
+ .dapm_widgets = odroidx2_dapm_widgets,
+ .num_dapm_widgets = ARRAY_SIZE(odroidx2_dapm_widgets),
+};
+
+static const 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(odroidx2_dai[0].cpu_of_node);
+ of_node_put(odroidx2_dai[0].codec_of_node);
+
+ return 0;
+}
+
+static struct platform_driver odroidx2_audio_driver = {
+ .driver = {
+ .name = "odroidx2-audio",
+ .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");
Code Review / kvmfornfv.git / blobdiff