1 /*
2 * smdk_wm9713.c -- SoC audio for SMDK
3 *
4 * Copyright 2010 Samsung Electronics Co. Ltd.
5 * Author: Jaswinder Singh Brar <jassi.brar@samsung.com>
6 *
7 * This program is free software; you can redistribute it and/or
8 * modify it under the terms of the GNU General Public License as
9 * published by the Free Software Foundation; either version 2 of the
10 * License, or (at your option) any later version.
11 *
12 */
13
14 #include <linux/module.h>
15 #include <sound/soc.h>
16
17 static struct snd_soc_card smdk;
18
19 /*
20 * Default CFG switch settings to use this driver:
21 *
22 * SMDK6410: Set CFG1 1-3 On, CFG2 1-4 Off
23 * SMDKC100: Set CFG6 1-3 On, CFG7 1 On
24 * SMDKC110: Set CFGB10 1-2 Off, CFGB12 1-3 On
25 * SMDKV210: Set CFGB10 1-2 Off, CFGB12 1-3 On
26 * SMDKV310: Set CFG2 1-2 Off, CFG4 All On, CFG7 All Off, CFG8 1-On
27 */
28
29 /*
30 Playback (HeadPhone):-
31 $ amixer sset 'Headphone' unmute
32 $ amixer sset 'Right Headphone Out Mux' 'Headphone'
33 $ amixer sset 'Left Headphone Out Mux' 'Headphone'
34 $ amixer sset 'Right HP Mixer PCM' unmute
35 $ amixer sset 'Left HP Mixer PCM' unmute
36
37 Capture (LineIn):-
38 $ amixer sset 'Right Capture Source' 'Line'
39 $ amixer sset 'Left Capture Source' 'Line'
40 */
41
42 static struct snd_soc_dai_link smdk_dai = {
43 .name = "AC97",
44 .stream_name = "AC97 PCM",
45 .platform_name = "samsung-audio",
46 .cpu_dai_name = "samsung-ac97",
47 .codec_dai_name = "wm9713-hifi",
48 .codec_name = "wm9713-codec",
49 };
50
51 static struct snd_soc_card smdk = {
52 .name = "SMDK WM9713",
53 .owner = THIS_MODULE,
54 .dai_link = &smdk_dai,
55 .num_links = 1,
56 };
57
58 static struct platform_device *smdk_snd_wm9713_device;
59 static struct platform_device *smdk_snd_ac97_device;
60
smdk_init(void)61 static int __init smdk_init(void)
62 {
63 int ret;
64
65 smdk_snd_wm9713_device = platform_device_alloc("wm9713-codec", -1);
66 if (!smdk_snd_wm9713_device)
67 return -ENOMEM;
68
69 ret = platform_device_add(smdk_snd_wm9713_device);
70 if (ret)
71 goto err1;
72
73 smdk_snd_ac97_device = platform_device_alloc("soc-audio", -1);
74 if (!smdk_snd_ac97_device) {
75 ret = -ENOMEM;
76 goto err2;
77 }
78
79 platform_set_drvdata(smdk_snd_ac97_device, &smdk);
80
81 ret = platform_device_add(smdk_snd_ac97_device);
82 if (ret)
83 goto err3;
84
85 return 0;
86
87 err3:
88 platform_device_put(smdk_snd_ac97_device);
89 err2:
90 platform_device_del(smdk_snd_wm9713_device);
91 err1:
92 platform_device_put(smdk_snd_wm9713_device);
93 return ret;
94 }
95
smdk_exit(void)96 static void __exit smdk_exit(void)
97 {
98 platform_device_unregister(smdk_snd_ac97_device);
99 platform_device_unregister(smdk_snd_wm9713_device);
100 }
101
102 module_init(smdk_init);
103 module_exit(smdk_exit);
104
105 /* Module information */
106 MODULE_AUTHOR("Jaswinder Singh Brar, jassi.brar@samsung.com");
107 MODULE_DESCRIPTION("ALSA SoC SMDK+WM9713");
108 MODULE_LICENSE("GPL");
109