Commit | Line | Data |
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a9262c4f JS |
1 | /* |
2 | * Phytec pcm030 driver for the PSC of the Freescale MPC52xx | |
3 | * configured as AC97 interface | |
4 | * | |
5 | * Copyright 2008 Jon Smirl, Digispeaker | |
6 | * Author: Jon Smirl <jonsmirl@gmail.com> | |
7 | * | |
8 | * This file is licensed under the terms of the GNU General Public License | |
9 | * version 2. This program is licensed "as is" without any warranty of any | |
10 | * kind, whether express or implied. | |
11 | */ | |
12 | ||
13 | #include <linux/init.h> | |
14 | #include <linux/module.h> | |
a9262c4f | 15 | #include <linux/device.h> |
a9262c4f JS |
16 | #include <linux/of_device.h> |
17 | #include <linux/of_platform.h> | |
a9262c4f | 18 | |
a9262c4f | 19 | #include <sound/soc.h> |
a9262c4f JS |
20 | |
21 | #include "mpc5200_dma.h" | |
a9262c4f | 22 | |
afc5e652 TI |
23 | #define DRV_NAME "pcm030-audio-fabric" |
24 | ||
c912fa91 EM |
25 | struct pcm030_audio_data { |
26 | struct snd_soc_card *card; | |
27 | struct platform_device *codec_device; | |
28 | }; | |
29 | ||
a9262c4f JS |
30 | static struct snd_soc_dai_link pcm030_fabric_dai[] = { |
31 | { | |
32 | .name = "AC97", | |
33 | .stream_name = "AC97 Analog", | |
f0fba2ad LG |
34 | .codec_dai_name = "wm9712-hifi", |
35 | .cpu_dai_name = "mpc5200-psc-ac97.0", | |
f0fba2ad | 36 | .codec_name = "wm9712-codec", |
a9262c4f JS |
37 | }, |
38 | { | |
39 | .name = "AC97", | |
40 | .stream_name = "AC97 IEC958", | |
f0fba2ad LG |
41 | .codec_dai_name = "wm9712-aux", |
42 | .cpu_dai_name = "mpc5200-psc-ac97.1", | |
e94be5f3 | 43 | .codec_name = "wm9712-codec", |
a9262c4f JS |
44 | }, |
45 | }; | |
46 | ||
08401161 | 47 | static struct snd_soc_card pcm030_card = { |
4c3c5df0 AL |
48 | .name = "pcm030", |
49 | .owner = THIS_MODULE, | |
50 | .dai_link = pcm030_fabric_dai, | |
51 | .num_links = ARRAY_SIZE(pcm030_fabric_dai), | |
52 | }; | |
53 | ||
08401161 | 54 | static int __init pcm030_fabric_probe(struct platform_device *op) |
a9262c4f | 55 | { |
08401161 EM |
56 | struct device_node *np = op->dev.of_node; |
57 | struct device_node *platform_np; | |
58 | struct snd_soc_card *card = &pcm030_card; | |
c912fa91 | 59 | struct pcm030_audio_data *pdata; |
08401161 EM |
60 | int ret; |
61 | int i; | |
a9262c4f | 62 | |
71a157e8 | 63 | if (!of_machine_is_compatible("phytec,pcm030")) |
a9262c4f JS |
64 | return -ENODEV; |
65 | ||
c912fa91 EM |
66 | pdata = devm_kzalloc(&op->dev, sizeof(struct pcm030_audio_data), |
67 | GFP_KERNEL); | |
68 | if (!pdata) | |
69 | return -ENOMEM; | |
70 | ||
08401161 | 71 | card->dev = &op->dev; |
c912fa91 EM |
72 | platform_set_drvdata(op, pdata); |
73 | ||
74 | pdata->card = card; | |
08401161 EM |
75 | |
76 | platform_np = of_parse_phandle(np, "asoc-platform", 0); | |
77 | if (!platform_np) { | |
78 | dev_err(&op->dev, "ac97 not registered\n"); | |
a9262c4f JS |
79 | return -ENODEV; |
80 | } | |
81 | ||
08401161 EM |
82 | for (i = 0; i < card->num_links; i++) |
83 | card->dai_link[i].platform_of_node = platform_np; | |
a9262c4f | 84 | |
c912fa91 EM |
85 | ret = request_module("snd-soc-wm9712"); |
86 | if (ret) | |
87 | dev_err(&op->dev, "request_module returned: %d\n", ret); | |
88 | ||
89 | pdata->codec_device = platform_device_alloc("wm9712-codec", -1); | |
90 | if (!pdata->codec_device) | |
91 | dev_err(&op->dev, "platform_device_alloc() failed\n"); | |
92 | ||
93 | ret = platform_device_add(pdata->codec_device); | |
94 | if (ret) | |
95 | dev_err(&op->dev, "platform_device_add() failed: %d\n", ret); | |
96 | ||
08401161 EM |
97 | ret = snd_soc_register_card(card); |
98 | if (ret) | |
99 | dev_err(&op->dev, "snd_soc_register_card() failed: %d\n", ret); | |
100 | ||
101 | return ret; | |
a9262c4f JS |
102 | } |
103 | ||
08401161 EM |
104 | static int __devexit pcm030_fabric_remove(struct platform_device *op) |
105 | { | |
c912fa91 | 106 | struct pcm030_audio_data *pdata = platform_get_drvdata(op); |
08401161 EM |
107 | int ret; |
108 | ||
c912fa91 EM |
109 | ret = snd_soc_unregister_card(pdata->card); |
110 | platform_device_unregister(pdata->codec_device); | |
08401161 EM |
111 | |
112 | return ret; | |
113 | } | |
114 | ||
115 | static struct of_device_id pcm030_audio_match[] = { | |
116 | { .compatible = "phytec,pcm030-audio-fabric", }, | |
117 | {} | |
118 | }; | |
119 | MODULE_DEVICE_TABLE(of, pcm030_audio_match); | |
120 | ||
121 | static struct platform_driver pcm030_fabric_driver = { | |
122 | .probe = pcm030_fabric_probe, | |
123 | .remove = __devexit_p(pcm030_fabric_remove), | |
124 | .driver = { | |
125 | .name = DRV_NAME, | |
126 | .owner = THIS_MODULE, | |
127 | .of_match_table = pcm030_audio_match, | |
128 | }, | |
129 | }; | |
130 | ||
131 | module_platform_driver(pcm030_fabric_driver); | |
a9262c4f JS |
132 | |
133 | ||
134 | MODULE_AUTHOR("Jon Smirl <jonsmirl@gmail.com>"); | |
135 | MODULE_DESCRIPTION(DRV_NAME ": mpc5200 pcm030 fabric driver"); | |
136 | MODULE_LICENSE("GPL"); | |
137 |