This source file includes following definitions.
- pcm030_fabric_probe
- pcm030_fabric_remove
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9 #include <linux/init.h>
10 #include <linux/module.h>
11 #include <linux/device.h>
12 #include <linux/of_device.h>
13 #include <linux/of_platform.h>
14
15 #include <sound/soc.h>
16
17 #include "mpc5200_dma.h"
18
19 #define DRV_NAME "pcm030-audio-fabric"
20
21 struct pcm030_audio_data {
22 struct snd_soc_card *card;
23 struct platform_device *codec_device;
24 };
25
26 SND_SOC_DAILINK_DEFS(analog,
27 DAILINK_COMP_ARRAY(COMP_CPU("mpc5200-psc-ac97.0")),
28 DAILINK_COMP_ARRAY(COMP_CODEC("wm9712-codec", "wm9712-hifi")),
29 DAILINK_COMP_ARRAY(COMP_EMPTY()));
30
31 SND_SOC_DAILINK_DEFS(iec958,
32 DAILINK_COMP_ARRAY(COMP_CPU("mpc5200-psc-ac97.1")),
33 DAILINK_COMP_ARRAY(COMP_CODEC("wm9712-codec", "wm9712-aux")),
34 DAILINK_COMP_ARRAY(COMP_EMPTY()));
35
36 static struct snd_soc_dai_link pcm030_fabric_dai[] = {
37 {
38 .name = "AC97.0",
39 .stream_name = "AC97 Analog",
40 SND_SOC_DAILINK_REG(analog),
41 },
42 {
43 .name = "AC97.1",
44 .stream_name = "AC97 IEC958",
45 SND_SOC_DAILINK_REG(iec958),
46 },
47 };
48
49 static struct snd_soc_card pcm030_card = {
50 .name = "pcm030",
51 .owner = THIS_MODULE,
52 .dai_link = pcm030_fabric_dai,
53 .num_links = ARRAY_SIZE(pcm030_fabric_dai),
54 };
55
56 static int pcm030_fabric_probe(struct platform_device *op)
57 {
58 struct device_node *np = op->dev.of_node;
59 struct device_node *platform_np;
60 struct snd_soc_card *card = &pcm030_card;
61 struct pcm030_audio_data *pdata;
62 struct snd_soc_dai_link *dai_link;
63 int ret;
64 int i;
65
66 if (!of_machine_is_compatible("phytec,pcm030"))
67 return -ENODEV;
68
69 pdata = devm_kzalloc(&op->dev, sizeof(struct pcm030_audio_data),
70 GFP_KERNEL);
71 if (!pdata)
72 return -ENOMEM;
73
74 card->dev = &op->dev;
75
76 pdata->card = card;
77
78 platform_np = of_parse_phandle(np, "asoc-platform", 0);
79 if (!platform_np) {
80 dev_err(&op->dev, "ac97 not registered\n");
81 return -ENODEV;
82 }
83
84 for_each_card_prelinks(card, i, dai_link)
85 dai_link->platforms->of_node = platform_np;
86
87 ret = request_module("snd-soc-wm9712");
88 if (ret)
89 dev_err(&op->dev, "request_module returned: %d\n", ret);
90
91 pdata->codec_device = platform_device_alloc("wm9712-codec", -1);
92 if (!pdata->codec_device)
93 dev_err(&op->dev, "platform_device_alloc() failed\n");
94
95 ret = platform_device_add(pdata->codec_device);
96 if (ret)
97 dev_err(&op->dev, "platform_device_add() failed: %d\n", ret);
98
99 ret = snd_soc_register_card(card);
100 if (ret)
101 dev_err(&op->dev, "snd_soc_register_card() failed: %d\n", ret);
102
103 platform_set_drvdata(op, pdata);
104
105 return ret;
106 }
107
108 static int pcm030_fabric_remove(struct platform_device *op)
109 {
110 struct pcm030_audio_data *pdata = platform_get_drvdata(op);
111 int ret;
112
113 ret = snd_soc_unregister_card(pdata->card);
114 platform_device_unregister(pdata->codec_device);
115
116 return ret;
117 }
118
119 static const struct of_device_id pcm030_audio_match[] = {
120 { .compatible = "phytec,pcm030-audio-fabric", },
121 {}
122 };
123 MODULE_DEVICE_TABLE(of, pcm030_audio_match);
124
125 static struct platform_driver pcm030_fabric_driver = {
126 .probe = pcm030_fabric_probe,
127 .remove = pcm030_fabric_remove,
128 .driver = {
129 .name = DRV_NAME,
130 .of_match_table = pcm030_audio_match,
131 },
132 };
133
134 module_platform_driver(pcm030_fabric_driver);
135
136
137 MODULE_AUTHOR("Jon Smirl <jonsmirl@gmail.com>");
138 MODULE_DESCRIPTION(DRV_NAME ": mpc5200 pcm030 fabric driver");
139 MODULE_LICENSE("GPL");
140