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[~shefty/rdma-dev.git] / sound / soc / ux500 / mop500.c
1 /*
2  * Copyright (C) ST-Ericsson SA 2012
3  *
4  * Author: Ola Lilja (ola.o.lilja@stericsson.com)
5  *         for ST-Ericsson.
6  *
7  * License terms:
8  *
9  * This program is free software; you can redistribute it and/or modify
10  * it under the terms of the GNU General Public License version 2 as published
11  * by the Free Software Foundation.
12  */
13
14 #include <asm/mach-types.h>
15
16 #include <linux/module.h>
17 #include <linux/io.h>
18 #include <linux/spi/spi.h>
19 #include <linux/of.h>
20
21 #include <sound/soc.h>
22 #include <sound/initval.h>
23
24 #include "ux500_pcm.h"
25 #include "ux500_msp_dai.h"
26
27 #include <mop500_ab8500.h>
28
29 /* Define the whole MOP500 soundcard, linking platform to the codec-drivers  */
30 struct snd_soc_dai_link mop500_dai_links[] = {
31         {
32                 .name = "ab8500_0",
33                 .stream_name = "ab8500_0",
34                 .cpu_dai_name = "ux500-msp-i2s.1",
35                 .codec_dai_name = "ab8500-codec-dai.0",
36                 .platform_name = "ux500-pcm.0",
37                 .codec_name = "ab8500-codec.0",
38                 .init = mop500_ab8500_machine_init,
39                 .ops = mop500_ab8500_ops,
40         },
41         {
42                 .name = "ab8500_1",
43                 .stream_name = "ab8500_1",
44                 .cpu_dai_name = "ux500-msp-i2s.3",
45                 .codec_dai_name = "ab8500-codec-dai.1",
46                 .platform_name = "ux500-pcm.0",
47                 .codec_name = "ab8500-codec.0",
48                 .init = NULL,
49                 .ops = mop500_ab8500_ops,
50         },
51 };
52
53 static struct snd_soc_card mop500_card = {
54         .name = "MOP500-card",
55         .probe = NULL,
56         .dai_link = mop500_dai_links,
57         .num_links = ARRAY_SIZE(mop500_dai_links),
58 };
59
60 static int __devinit mop500_of_probe(struct platform_device *pdev,
61                                 struct device_node *np)
62 {
63         struct device_node *codec_np, *msp_np[2];
64         int i;
65
66         msp_np[0] = of_parse_phandle(np, "stericsson,cpu-dai", 0);
67         msp_np[1] = of_parse_phandle(np, "stericsson,cpu-dai", 1);
68         codec_np  = of_parse_phandle(np, "stericsson,audio-codec", 0);
69
70         if (!(msp_np[0] && msp_np[1] && codec_np)) {
71                 dev_err(&pdev->dev, "Phandle missing or invalid\n");
72                 return -EINVAL;
73         }
74
75         for (i = 0; i < 2; i++) {
76                 mop500_dai_links[i].cpu_of_node = msp_np[i];
77                 mop500_dai_links[i].cpu_dai_name = NULL;
78                 mop500_dai_links[i].codec_of_node = codec_np;
79                 mop500_dai_links[i].codec_name = NULL;
80         }
81
82         snd_soc_of_parse_card_name(&mop500_card, "stericsson,card-name");
83
84         return 0;
85 }
86 static int __devinit mop500_probe(struct platform_device *pdev)
87 {
88         struct device_node *np = pdev->dev.of_node;
89         int ret;
90
91         dev_dbg(&pdev->dev, "%s: Enter.\n", __func__);
92
93         mop500_card.dev = &pdev->dev;
94
95         if (np) {
96                 ret = mop500_of_probe(pdev, np);
97                 if (ret)
98                         return ret;
99         }
100
101         dev_dbg(&pdev->dev, "%s: Card %s: Set platform drvdata.\n",
102                 __func__, mop500_card.name);
103         platform_set_drvdata(pdev, &mop500_card);
104
105         snd_soc_card_set_drvdata(&mop500_card, NULL);
106
107         dev_dbg(&pdev->dev, "%s: Card %s: num_links = %d\n",
108                 __func__, mop500_card.name, mop500_card.num_links);
109         dev_dbg(&pdev->dev, "%s: Card %s: DAI-link 0: name = %s\n",
110                 __func__, mop500_card.name, mop500_card.dai_link[0].name);
111         dev_dbg(&pdev->dev, "%s: Card %s: DAI-link 0: stream_name = %s\n",
112                 __func__, mop500_card.name,
113                 mop500_card.dai_link[0].stream_name);
114
115         ret = snd_soc_register_card(&mop500_card);
116         if (ret)
117                 dev_err(&pdev->dev,
118                         "Error: snd_soc_register_card failed (%d)!\n", ret);
119
120         return ret;
121 }
122
123 static int __devexit mop500_remove(struct platform_device *pdev)
124 {
125         struct snd_soc_card *mop500_card = platform_get_drvdata(pdev);
126
127         pr_debug("%s: Enter.\n", __func__);
128
129         snd_soc_unregister_card(mop500_card);
130         mop500_ab8500_remove(mop500_card);
131
132         return 0;
133 }
134
135 static const struct of_device_id snd_soc_mop500_match[] = {
136         { .compatible = "stericsson,snd-soc-mop500", },
137         {},
138 };
139
140 static struct platform_driver snd_soc_mop500_driver = {
141         .driver = {
142                 .owner = THIS_MODULE,
143                 .name = "snd-soc-mop500",
144                 .of_match_table = snd_soc_mop500_match,
145         },
146         .probe = mop500_probe,
147         .remove = __devexit_p(mop500_remove),
148 };
149
150 module_platform_driver(snd_soc_mop500_driver);