ASoC: samsung: Add machine driver for Odroid X2/U3 (a40712a3) · Commits · 戴 / test

sound/soc/samsung/Kconfig

+8 −0

Original line number	Diff line number	Diff line
		@@ -237,3 +237,11 @@ config SND_SOC_SNOW
		help
		Say Y if you want to add audio support for various Snow
		boards based on Exynos5 series of SoCs.

		config SND_SOC_ODROIDX2
		tristate "Audio support for Odroid-X2 and Odroid-U3"
		depends on SND_SOC_SAMSUNG
		select SND_SOC_MAX98090
		select SND_SAMSUNG_I2S
		help
		Say Y here to enable audio support for the Odroid-X2/U3.

sound/soc/samsung/Makefile

+2 −0

Original line number	Diff line number	Diff line
		@@ -44,6 +44,7 @@ snd-soc-tobermory-objs := tobermory.o
		snd-soc-lowland-objs := lowland.o
		snd-soc-littlemill-objs := littlemill.o
		snd-soc-bells-objs := bells.o
		snd-soc-odroidx2-max98090-objs := odroidx2_max98090.o

		obj-$(CONFIG_SND_SOC_SAMSUNG_JIVE_WM8750) += snd-soc-jive-wm8750.o
		obj-$(CONFIG_SND_SOC_SAMSUNG_NEO1973_WM8753) += snd-soc-neo1973-wm8753.o
		@@ -69,3 +70,4 @@ obj-$(CONFIG_SND_SOC_TOBERMORY) += snd-soc-tobermory.o
		obj-$(CONFIG_SND_SOC_LOWLAND) += snd-soc-lowland.o
		obj-$(CONFIG_SND_SOC_LITTLEMILL) += snd-soc-littlemill.o
		obj-$(CONFIG_SND_SOC_BELLS) += snd-soc-bells.o
		obj-$(CONFIG_SND_SOC_ODROIDX2) += snd-soc-odroidx2-max98090.o

sound/soc/samsung/odroidx2_max98090.c

0 → 100644

+177 −0

Original line number	Diff line number	Diff line
		/*
		* 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");

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