1 /*
2 * simone.c -- ASoC audio for Simplemachines Sim.One board
3 *
4 * Copyright (c) 2010 Mika Westerberg
5 *
6 * Based on snappercl15 machine driver by Ryan Mallon.
7 *
8 * This program is free software; you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License version 2 as
10 * published by the Free Software Foundation.
11 */
12
13 #include <linux/init.h>
14 #include <linux/module.h>
15 #include <linux/platform_device.h>
16
17 #include <sound/core.h>
18 #include <sound/pcm.h>
19 #include <sound/soc.h>
20
21 #include <asm/mach-types.h>
22 #include <mach/hardware.h>
23
24 static struct snd_soc_dai_link simone_dai = {
25 .name = "AC97",
26 .stream_name = "AC97 HiFi",
27 .cpu_dai_name = "ep93xx-ac97",
28 .codec_dai_name = "ac97-hifi",
29 .codec_name = "ac97-codec",
30 .platform_name = "ep93xx-ac97",
31 };
32
33 static struct snd_soc_card snd_soc_simone = {
34 .name = "Sim.One",
35 .owner = THIS_MODULE,
36 .dai_link = &simone_dai,
37 .num_links = 1,
38 };
39
40 static struct platform_device *simone_snd_ac97_device;
41
simone_probe(struct platform_device * pdev)42 static int simone_probe(struct platform_device *pdev)
43 {
44 struct snd_soc_card *card = &snd_soc_simone;
45 int ret;
46
47 simone_snd_ac97_device = platform_device_register_simple("ac97-codec",
48 -1, NULL, 0);
49 if (IS_ERR(simone_snd_ac97_device))
50 return PTR_ERR(simone_snd_ac97_device);
51
52 card->dev = &pdev->dev;
53
54 ret = snd_soc_register_card(card);
55 if (ret) {
56 dev_err(&pdev->dev, "snd_soc_register_card() failed: %d\n",
57 ret);
58 platform_device_unregister(simone_snd_ac97_device);
59 }
60
61 return ret;
62 }
63
simone_remove(struct platform_device * pdev)64 static int simone_remove(struct platform_device *pdev)
65 {
66 struct snd_soc_card *card = platform_get_drvdata(pdev);
67
68 snd_soc_unregister_card(card);
69 platform_device_unregister(simone_snd_ac97_device);
70
71 return 0;
72 }
73
74 static struct platform_driver simone_driver = {
75 .driver = {
76 .name = "simone-audio",
77 },
78 .probe = simone_probe,
79 .remove = simone_remove,
80 };
81
82 module_platform_driver(simone_driver);
83
84 MODULE_DESCRIPTION("ALSA SoC Simplemachines Sim.One");
85 MODULE_AUTHOR("Mika Westerberg <mika.westerberg@iki.fi>");
86 MODULE_LICENSE("GPL");
87 MODULE_ALIAS("platform:simone-audio");
88
