/ {
	sound: sound {
		compatible = "simple-audio-card";

		simple-audio-card,name = "Odroid-XU4";
		simple-audio-card,widgets =
			"Headphone", "Headphone Jack";
		simple-audio-card,routing =
			"Headphone Jack", "HPL",
			"Headphone Jack", "HPR";

		simple-audio-card,format = "i2s";
		simple-audio-card,bitclock-master = <&link0_codec>;
		simple-audio-card,frame-master = <&link0_codec>;

		simple-audio-card,cpu {
			sound-dai = <&i2s0 0>;
			system-clock-frequency = <19200000>;
		};

		link0_codec: simple-audio-card,codec {
			sound-dai = <&cs4344>;
			clocks = <&i2s0 CLK_I2S_CDCLK>;
		};
	};

	cs4344: cs4344@10 {
		compatible = "cirrus,cs4344";
		clocks = <&i2s0 CLK_I2S_CDCLK>;
		clock-names = "mclk";
		#sound-dai-cells = <0>;
		status = "okay";
	};

};




==============================================

CODEC PART:


#include <linux/init.h>
#include <linux/slab.h>
#include <linux/module.h>
#include <linux/kernel.h>
#include <linux/device.h>
#include <sound/core.h>
#include <sound/pcm.h>
#include <sound/ac97_codec.h>
#include <sound/initval.h>
#include <sound/soc.h>

#include "cs4344.h"

static const struct snd_soc_dapm_widget cs4344_dapm_widgets[] = {
    SND_SOC_DAPM_OUTPUT("HPL"),
    SND_SOC_DAPM_OUTPUT("HPR"),
};

static const struct snd_soc_dapm_route cs4344_dapm_routes[] = {
    { "HPL", NULL, "Playback" },
    { "HPR", NULL, "Playback" },
};

static struct snd_soc_dai_driver cs4344_dai = {
    .name = "cs4344",
    .playback = {
        .stream_name = "Playback",
        .channels_min = 1,
        .channels_max = 2,
        .rates= SNDRV_PCM_RATE_8000  | SNDRV_PCM_RATE_11025 | \
                SNDRV_PCM_RATE_16000 | SNDRV_PCM_RATE_22050 | \
                SNDRV_PCM_RATE_44100 | SNDRV_PCM_RATE_48000 | \
                SNDRV_PCM_RATE_88200 | SNDRV_PCM_RATE_96000,
        .formats = SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S20_3LE | SNDRV_PCM_FMTBIT_S24_LE,
    },
};

static struct snd_soc_codec_driver soc_codec_dev_cs4344 = {
    .dapm_widgets = cs4344_dapm_widgets,
    .num_dapm_widgets = ARRAY_SIZE(cs4344_dapm_widgets),
    .dapm_routes = cs4344_dapm_routes,
    .num_dapm_routes = ARRAY_SIZE(cs4344_dapm_routes),
};

static int cs4344_probe(struct platform_device *pdev){
    printk ("****** probe cs4344 ******\n");
    return snd_soc_register_codec(&pdev->dev, &soc_codec_dev_cs4344, &cs4344_dai, 1);
}

static int cs4344_remove(struct platform_device *pdev){
    printk ("****** remove cs4344 ******\n");
    snd_soc_unregister_codec(&pdev->dev);
    return 0;
}

static const struct of_device_id cs4344_of_match[] = {
    { .compatible = "cirrus,cs4344", },
    { }
};

MODULE_DEVICE_TABLE(of, cs4344_of_match);

static struct platform_driver cs4344_codec_driver = {
    .driver = {
        .name = "cs4344",
        .of_match_table = of_match_ptr(cs4344_of_match),
    },
    .probe = cs4344_probe,
    .remove = cs4344_remove,
};

module_platform_driver(cs4344_codec_driver);

MODULE_DESCRIPTION("ASoC cs4344 driver");
MODULE_AUTHOR("xyz");
MODULE_LICENSE("GPL");
MODULE_ALIAS("platform:cs4344");