1 /*
2  * Efika 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>
15 #include <linux/interrupt.h>
16 #include <linux/device.h>
17 #include <linux/delay.h>
18 #include <linux/of_device.h>
19 #include <linux/of_platform.h>
20 #include <linux/dma-mapping.h>
21 
22 #include <sound/core.h>
23 #include <sound/pcm.h>
24 #include <sound/pcm_params.h>
25 #include <sound/initval.h>
26 #include <sound/soc.h>
27 
28 #include "mpc5200_dma.h"
29 
30 #define DRV_NAME "efika-audio-fabric"
31 
32 static struct snd_soc_dai_link efika_fabric_dai[] = {
33 {
34 	.name = "AC97",
35 	.stream_name = "AC97 Analog",
36 	.codec_dai_name = "stac9766-hifi-analog",
37 	.cpu_dai_name = "mpc5200-psc-ac97.0",
38 	.platform_name = "mpc5200-pcm-audio",
39 	.codec_name = "stac9766-codec",
40 },
41 {
42 	.name = "AC97",
43 	.stream_name = "AC97 IEC958",
44 	.codec_dai_name = "stac9766-hifi-IEC958",
45 	.cpu_dai_name = "mpc5200-psc-ac97.1",
46 	.platform_name = "mpc5200-pcm-audio",
47 	.codec_name = "stac9766-codec",
48 },
49 };
50 
51 static struct snd_soc_card card = {
52 	.name = "Efika",
53 	.owner = THIS_MODULE,
54 	.dai_link = efika_fabric_dai,
55 	.num_links = ARRAY_SIZE(efika_fabric_dai),
56 };
57 
58 static __init int efika_fabric_init(void)
59 {
60 	struct platform_device *pdev;
61 	int rc;
62 
63 	if (!of_machine_is_compatible("bplan,efika"))
64 		return -ENODEV;
65 
66 	pdev = platform_device_alloc("soc-audio", 1);
67 	if (!pdev) {
68 		pr_err("efika_fabric_init: platform_device_alloc() failed\n");
69 		return -ENODEV;
70 	}
71 
72 	platform_set_drvdata(pdev, &card);
73 
74 	rc = platform_device_add(pdev);
75 	if (rc) {
76 		pr_err("efika_fabric_init: platform_device_add() failed\n");
77 		platform_device_put(pdev);
78 		return -ENODEV;
79 	}
80 	return 0;
81 }
82 
83 module_init(efika_fabric_init);
84 
85 
86 MODULE_AUTHOR("Jon Smirl <jonsmirl@gmail.com>");
87 MODULE_DESCRIPTION(DRV_NAME ": mpc5200 Efika fabric driver");
88 MODULE_LICENSE("GPL");
89 
90