2 #include <linux/module.h>
5 #include <asm/mach-types.h>
7 #include "../codecs/wm8940.h"
8 #include "pxa2xx-i2s.h"
10 static int imote2_asoc_hw_params(struct snd_pcm_substream *substream,
11 struct snd_pcm_hw_params *params)
13 struct snd_soc_pcm_runtime *rtd = substream->private_data;
14 struct snd_soc_dai *codec_dai = rtd->codec_dai;
15 struct snd_soc_dai *cpu_dai = rtd->cpu_dai;
19 switch (params_rate(params)) {
33 ret = snd_soc_dai_set_sysclk(codec_dai, 0, clk,
38 /* set the I2S system clock as input (unused) */
39 ret = snd_soc_dai_set_sysclk(cpu_dai, PXA2XX_I2S_SYSCLK, clk,
45 static struct snd_soc_ops imote2_asoc_ops = {
46 .hw_params = imote2_asoc_hw_params,
49 static struct snd_soc_dai_link imote2_dai = {
51 .stream_name = "WM8940",
52 .cpu_dai_name = "pxa2xx-i2s",
53 .codec_dai_name = "wm8940-hifi",
54 .platform_name = "pxa-pcm-audio",
55 .codec_name = "wm8940-codec.0-0034",
56 .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF |
57 SND_SOC_DAIFMT_CBS_CFS,
58 .ops = &imote2_asoc_ops,
61 static struct snd_soc_card imote2 = {
64 .dai_link = &imote2_dai,
68 static int imote2_probe(struct platform_device *pdev)
70 struct snd_soc_card *card = &imote2;
73 card->dev = &pdev->dev;
75 ret = snd_soc_register_card(card);
77 dev_err(&pdev->dev, "snd_soc_register_card() failed: %d\n",
82 static int imote2_remove(struct platform_device *pdev)
84 struct snd_soc_card *card = platform_get_drvdata(pdev);
86 snd_soc_unregister_card(card);
90 static struct platform_driver imote2_driver = {
92 .name = "imote2-audio",
94 .pm = &snd_soc_pm_ops,
96 .probe = imote2_probe,
97 .remove = imote2_remove,
100 module_platform_driver(imote2_driver);
102 MODULE_AUTHOR("Jonathan Cameron");
103 MODULE_DESCRIPTION("ALSA SoC Imote 2");
104 MODULE_LICENSE("GPL");
105 MODULE_ALIAS("platform:imote2-audio");