1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
|
// SPDX-License-Identifier: GPL-2.0
//
// Phytec pcm030 driver for the PSC of the Freescale MPC52xx
// configured as AC97 interface
//
// Copyright 2008 Jon Smirl, Digispeaker
// Author: Jon Smirl <jonsmirl@gmail.com>
#include <linux/init.h>
#include <linux/module.h>
#include <linux/device.h>
#include <linux/of_device.h>
#include <linux/of_platform.h>
#include <sound/soc.h>
#include "mpc5200_dma.h"
#define DRV_NAME "pcm030-audio-fabric"
struct pcm030_audio_data {
struct snd_soc_card *card;
struct platform_device *codec_device;
};
SND_SOC_DAILINK_DEFS(analog,
DAILINK_COMP_ARRAY(COMP_CPU("mpc5200-psc-ac97.0")),
DAILINK_COMP_ARRAY(COMP_CODEC("wm9712-codec", "wm9712-hifi")),
DAILINK_COMP_ARRAY(COMP_EMPTY()));
SND_SOC_DAILINK_DEFS(iec958,
DAILINK_COMP_ARRAY(COMP_CPU("mpc5200-psc-ac97.1")),
DAILINK_COMP_ARRAY(COMP_CODEC("wm9712-codec", "wm9712-aux")),
DAILINK_COMP_ARRAY(COMP_EMPTY()));
static struct snd_soc_dai_link pcm030_fabric_dai[] = {
{
.name = "AC97.0",
.stream_name = "AC97 Analog",
SND_SOC_DAILINK_REG(analog),
},
{
.name = "AC97.1",
.stream_name = "AC97 IEC958",
SND_SOC_DAILINK_REG(iec958),
},
};
static struct snd_soc_card pcm030_card = {
.name = "pcm030",
.owner = THIS_MODULE,
.dai_link = pcm030_fabric_dai,
.num_links = ARRAY_SIZE(pcm030_fabric_dai),
};
static int pcm030_fabric_probe(struct platform_device *op)
{
struct device_node *np = op->dev.of_node;
struct device_node *platform_np;
struct snd_soc_card *card = &pcm030_card;
struct pcm030_audio_data *pdata;
struct snd_soc_dai_link *dai_link;
int ret;
int i;
if (!of_machine_is_compatible("phytec,pcm030"))
return -ENODEV;
pdata = devm_kzalloc(&op->dev, sizeof(struct pcm030_audio_data),
GFP_KERNEL);
if (!pdata)
return -ENOMEM;
card->dev = &op->dev;
pdata->card = card;
platform_np = of_parse_phandle(np, "asoc-platform", 0);
if (!platform_np) {
dev_err(&op->dev, "ac97 not registered\n");
return -ENODEV;
}
for_each_card_prelinks(card, i, dai_link)
dai_link->platforms->of_node = platform_np;
ret = request_module("snd-soc-wm9712");
if (ret)
dev_err(&op->dev, "request_module returned: %d\n", ret);
pdata->codec_device = platform_device_alloc("wm9712-codec", -1);
if (!pdata->codec_device)
dev_err(&op->dev, "platform_device_alloc() failed\n");
ret = platform_device_add(pdata->codec_device);
if (ret)
dev_err(&op->dev, "platform_device_add() failed: %d\n", ret);
ret = snd_soc_register_card(card);
if (ret)
dev_err(&op->dev, "snd_soc_register_card() failed: %d\n", ret);
platform_set_drvdata(op, pdata);
return ret;
}
static int pcm030_fabric_remove(struct platform_device *op)
{
struct pcm030_audio_data *pdata = platform_get_drvdata(op);
int ret;
ret = snd_soc_unregister_card(pdata->card);
platform_device_unregister(pdata->codec_device);
return ret;
}
static const struct of_device_id pcm030_audio_match[] = {
{ .compatible = "phytec,pcm030-audio-fabric", },
{}
};
MODULE_DEVICE_TABLE(of, pcm030_audio_match);
static struct platform_driver pcm030_fabric_driver = {
.probe = pcm030_fabric_probe,
.remove = pcm030_fabric_remove,
.driver = {
.name = DRV_NAME,
.of_match_table = pcm030_audio_match,
},
};
module_platform_driver(pcm030_fabric_driver);
MODULE_AUTHOR("Jon Smirl <jonsmirl@gmail.com>");
MODULE_DESCRIPTION(DRV_NAME ": mpc5200 pcm030 fabric driver");
MODULE_LICENSE("GPL");
|
