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 .dai_link = imx_phycore_dai_ac97,
42 .num_links = ARRAY_SIZE(imx_phycore_dai_ac97),
43 };
44
45 static struct platform_device *imx_phycore_snd_ac97_device;
46 static struct platform_device *imx_phycore_snd_device;
47
imx_phycore_init(void)48 static int __init imx_phycore_init(void)
49 {
50 int ret;
51
52 if (!machine_is_pcm043() && !machine_is_pca100())
53 /* return happy. We might run on a totally different machine */
54 return 0;
55
56 imx_phycore_snd_ac97_device = platform_device_alloc("soc-audio", -1);
57 if (!imx_phycore_snd_ac97_device)
58 return -ENOMEM;
59
60 platform_set_drvdata(imx_phycore_snd_ac97_device, &imx_phycore);
61 ret = platform_device_add(imx_phycore_snd_ac97_device);
62 if (ret)
63 goto fail1;
64
65 imx_phycore_snd_device = platform_device_alloc("wm9712-codec", -1);
66 if (!imx_phycore_snd_device) {
67 ret = -ENOMEM;
68 goto fail2;
69 }
70 ret = platform_device_add(imx_phycore_snd_device);
71
72 if (ret) {
73 printk(KERN_ERR "ASoC: Platform device allocation failed\n");
74 goto fail3;
75 }
76
77 return 0;
78
79 fail3:
80 platform_device_put(imx_phycore_snd_device);
81 fail2:
82 platform_device_del(imx_phycore_snd_ac97_device);
83 fail1:
84 platform_device_put(imx_phycore_snd_ac97_device);
85 return ret;
86 }
87
imx_phycore_exit(void)88 static void __exit imx_phycore_exit(void)
89 {
90 platform_device_unregister(imx_phycore_snd_device);
91 platform_device_unregister(imx_phycore_snd_ac97_device);
92 }
93
94 late_initcall(imx_phycore_init);
95 module_exit(imx_phycore_exit);
96
97 MODULE_AUTHOR("Sascha Hauer <s.hauer@pengutronix.de>");
98 MODULE_DESCRIPTION("PhyCORE ALSA SoC driver");
99 MODULE_LICENSE("GPL");
100