1 /*
2 * FSI-AK464x sound support for ms7724se
3 *
4 * Copyright (C) 2009 Renesas Solutions Corp.
5 * Kuninori Morimoto <morimoto.kuninori@renesas.com>
6 *
7 * This file is subject to the terms and conditions of the GNU General Public
8 * License. See the file "COPYING" in the main directory of this archive
9 * for more details.
10 */
11
12 #include <linux/platform_device.h>
13 #include <linux/module.h>
14 #include <sound/sh_fsi.h>
15
16 struct fsi_ak4642_data {
17 const char *name;
18 const char *card;
19 const char *cpu_dai;
20 const char *codec;
21 const char *platform;
22 int id;
23 };
24
fsi_ak4642_dai_init(struct snd_soc_pcm_runtime * rtd)25 static int fsi_ak4642_dai_init(struct snd_soc_pcm_runtime *rtd)
26 {
27 struct snd_soc_dai *codec = rtd->codec_dai;
28 struct snd_soc_dai *cpu = rtd->cpu_dai;
29 int ret;
30
31 ret = snd_soc_dai_set_fmt(codec, SND_SOC_DAIFMT_LEFT_J |
32 SND_SOC_DAIFMT_CBM_CFM);
33 if (ret < 0)
34 return ret;
35
36 ret = snd_soc_dai_set_sysclk(codec, 0, 11289600, 0);
37 if (ret < 0)
38 return ret;
39
40 ret = snd_soc_dai_set_fmt(cpu, SND_SOC_DAIFMT_LEFT_J |
41 SND_SOC_DAIFMT_CBS_CFS);
42
43 return ret;
44 }
45
46 static struct snd_soc_dai_link fsi_dai_link = {
47 .codec_dai_name = "ak4642-hifi",
48 .init = fsi_ak4642_dai_init,
49 };
50
51 static struct snd_soc_card fsi_soc_card = {
52 .owner = THIS_MODULE,
53 .dai_link = &fsi_dai_link,
54 .num_links = 1,
55 };
56
57 static struct platform_device *fsi_snd_device;
58
fsi_ak4642_probe(struct platform_device * pdev)59 static int fsi_ak4642_probe(struct platform_device *pdev)
60 {
61 int ret = -ENOMEM;
62 struct fsi_ak4642_info *pinfo = pdev->dev.platform_data;
63
64 if (!pinfo) {
65 dev_err(&pdev->dev, "no info for fsi ak4642\n");
66 goto out;
67 }
68
69 fsi_snd_device = platform_device_alloc("soc-audio", pinfo->id);
70 if (!fsi_snd_device)
71 goto out;
72
73 fsi_dai_link.name = pinfo->name;
74 fsi_dai_link.stream_name = pinfo->name;
75 fsi_dai_link.cpu_dai_name = pinfo->cpu_dai;
76 fsi_dai_link.platform_name = pinfo->platform;
77 fsi_dai_link.codec_name = pinfo->codec;
78 fsi_soc_card.name = pinfo->card;
79
80 platform_set_drvdata(fsi_snd_device, &fsi_soc_card);
81 ret = platform_device_add(fsi_snd_device);
82
83 if (ret)
84 platform_device_put(fsi_snd_device);
85
86 out:
87 return ret;
88 }
89
fsi_ak4642_remove(struct platform_device * pdev)90 static int fsi_ak4642_remove(struct platform_device *pdev)
91 {
92 platform_device_unregister(fsi_snd_device);
93 return 0;
94 }
95
96 static struct platform_driver fsi_ak4642 = {
97 .driver = {
98 .name = "fsi-ak4642-audio",
99 },
100 .probe = fsi_ak4642_probe,
101 .remove = fsi_ak4642_remove,
102 };
103
104 module_platform_driver(fsi_ak4642);
105
106 MODULE_LICENSE("GPL");
107 MODULE_DESCRIPTION("Generic SH4 FSI-AK4642 sound card");
108 MODULE_AUTHOR("Kuninori Morimoto <morimoto.kuninori@renesas.com>");
109