Merge branch 'perfcounters-fixes-for-linus' of git://git.kernel.org/pub/scm/linux...
[linux-2.6] / sound / soc / pxa / em-x270.c
1 /*
2  * SoC audio driver for EM-X270, eXeda and CM-X300
3  *
4  * Copyright 2007, 2009 CompuLab, Ltd.
5  *
6  * Author: Mike Rapoport <mike@compulab.co.il>
7  *
8  * Copied from tosa.c:
9  * Copyright 2005 Wolfson Microelectronics PLC.
10  * Copyright 2005 Openedhand Ltd.
11  *
12  * Authors: Liam Girdwood <lrg@slimlogic.co.uk>
13  *          Richard Purdie <richard@openedhand.com>
14  *
15  *  This program is free software; you can redistribute  it and/or modify it
16  *  under  the terms of  the GNU General  Public License as published by the
17  *  Free Software Foundation;  either version 2 of the  License, or (at your
18  *  option) any later version.
19  *
20  */
21
22 #include <linux/module.h>
23 #include <linux/moduleparam.h>
24 #include <linux/device.h>
25
26 #include <sound/core.h>
27 #include <sound/pcm.h>
28 #include <sound/soc.h>
29 #include <sound/soc-dapm.h>
30
31 #include <asm/mach-types.h>
32 #include <mach/audio.h>
33
34 #include "../codecs/wm9712.h"
35 #include "pxa2xx-pcm.h"
36 #include "pxa2xx-ac97.h"
37
38 static struct snd_soc_dai_link em_x270_dai[] = {
39         {
40                 .name = "AC97",
41                 .stream_name = "AC97 HiFi",
42                 .cpu_dai = &pxa_ac97_dai[PXA2XX_DAI_AC97_HIFI],
43                 .codec_dai = &wm9712_dai[WM9712_DAI_AC97_HIFI],
44         },
45         {
46                 .name = "AC97 Aux",
47                 .stream_name = "AC97 Aux",
48                 .cpu_dai = &pxa_ac97_dai[PXA2XX_DAI_AC97_AUX],
49                 .codec_dai = &wm9712_dai[WM9712_DAI_AC97_AUX],
50         },
51 };
52
53 static struct snd_soc_card em_x270 = {
54         .name = "EM-X270",
55         .platform = &pxa2xx_soc_platform,
56         .dai_link = em_x270_dai,
57         .num_links = ARRAY_SIZE(em_x270_dai),
58 };
59
60 static struct snd_soc_device em_x270_snd_devdata = {
61         .card = &em_x270,
62         .codec_dev = &soc_codec_dev_wm9712,
63 };
64
65 static struct platform_device *em_x270_snd_device;
66
67 static int __init em_x270_init(void)
68 {
69         int ret;
70
71         if (!(machine_is_em_x270() || machine_is_exeda()
72               || machine_is_cm_x300()))
73                 return -ENODEV;
74
75         em_x270_snd_device = platform_device_alloc("soc-audio", -1);
76         if (!em_x270_snd_device)
77                 return -ENOMEM;
78
79         platform_set_drvdata(em_x270_snd_device, &em_x270_snd_devdata);
80         em_x270_snd_devdata.dev = &em_x270_snd_device->dev;
81         ret = platform_device_add(em_x270_snd_device);
82
83         if (ret)
84                 platform_device_put(em_x270_snd_device);
85
86         return ret;
87 }
88
89 static void __exit em_x270_exit(void)
90 {
91         platform_device_unregister(em_x270_snd_device);
92 }
93
94 module_init(em_x270_init);
95 module_exit(em_x270_exit);
96
97 /* Module information */
98 MODULE_AUTHOR("Mike Rapoport");
99 MODULE_DESCRIPTION("ALSA SoC EM-X270, eXeda and CM-X300");
100 MODULE_LICENSE("GPL");