1 /*
2 * phycore-ac97.c -- SoC audio for imx_phycore in AC97 mode
3 *
4 * Copyright 2009 Sascha Hauer, Pengutronix <s.hauer@pengutronix.de>
5 *
6 * This program is free software; you can redistribute it and/or modify it
7 * under the terms of the GNU General Public License as published by the
8 * Free Software Foundation; either version 2 of the License, or (at your
9 * option) any later version.
10 *
11 */
12
13 #include <linux/module.h>
14 #include <linux/moduleparam.h>
15 #include <linux/device.h>
16 #include <linux/i2c.h>
17 #include <sound/core.h>
18 #include <sound/pcm.h>
19 #include <sound/soc.h>
20 #include <asm/mach-types.h>
21
22 static struct snd_soc_card imx_phycore;
23
24 static struct snd_soc_ops imx_phycore_hifi_ops = {
25 };
26
27 static struct snd_soc_dai_link imx_phycore_dai_ac97[] = {
28 {
29 .name = "HiFi",
30 .stream_name = "HiFi",
31 .codec_dai_name = "wm9712-hifi",
32 .codec_name = "wm9712-codec",
33 .cpu_dai_name = "imx-ssi.0",
34 .platform_name = "imx-fiq-pcm-audio.0",
35 .ops = &imx_phycore_hifi_ops,
36 },
37 };
38
39 static struct snd_soc_card imx_phycore = {
40 .name = "PhyCORE-ac97-audio",
41 .owner = THIS_MODULE,
42 .dai_link = imx_phycore_dai_ac97,
43 .num_links = ARRAY_SIZE(imx_phycore_dai_ac97),
44 };
45
46 static struct platform_device *imx_phycore_snd_ac97_device;
47 static struct platform_device *imx_phycore_snd_device;
48
imx_phycore_init(void)49 static int __init imx_phycore_init(void)
50 {
51 int ret;
52
53 if (!machine_is_pcm043() && !machine_is_pca100())
54 /* return happy. We might run on a totally different machine */
55 return 0;
56
57 imx_phycore_snd_ac97_device = platform_device_alloc("soc-audio", -1);
58 if (!imx_phycore_snd_ac97_device)
59 return -ENOMEM;
60
61 platform_set_drvdata(imx_phycore_snd_ac97_device, &imx_phycore);
62 ret = platform_device_add(imx_phycore_snd_ac97_device);
63 if (ret)
64 goto fail1;
65
66 imx_phycore_snd_device = platform_device_alloc("wm9712-codec", -1);
67 if (!imx_phycore_snd_device) {
68 ret = -ENOMEM;
69 goto fail2;
70 }
71 ret = platform_device_add(imx_phycore_snd_device);
72
73 if (ret) {
74 printk(KERN_ERR "ASoC: Platform device allocation failed\n");
75 goto fail3;
76 }
77
78 return 0;
79
80 fail3:
81 platform_device_put(imx_phycore_snd_device);
82 fail2:
83 platform_device_del(imx_phycore_snd_ac97_device);
84 fail1:
85 platform_device_put(imx_phycore_snd_ac97_device);
86 return ret;
87 }
88
imx_phycore_exit(void)89 static void __exit imx_phycore_exit(void)
90 {
91 platform_device_unregister(imx_phycore_snd_device);
92 platform_device_unregister(imx_phycore_snd_ac97_device);
93 }
94
95 late_initcall(imx_phycore_init);
96 module_exit(imx_phycore_exit);
97
98 MODULE_AUTHOR("Sascha Hauer <s.hauer@pengutronix.de>");
99 MODULE_DESCRIPTION("PhyCORE ALSA SoC driver");
100 MODULE_LICENSE("GPL");
101