1 // SPDX-License-Identifier: GPL-2.0-only
2 /*
3 * simone.c -- ASoC audio for Simplemachines Sim.One board
4 *
5 * Copyright (c) 2010 Mika Westerberg
6 *
7 * Based on snappercl15 machine driver by Ryan Mallon.
8 */
9
10 #include <linux/init.h>
11 #include <linux/module.h>
12 #include <linux/platform_device.h>
13 #include <linux/soc/cirrus/ep93xx.h>
14
15 #include <sound/core.h>
16 #include <sound/pcm.h>
17 #include <sound/soc.h>
18
19 #include <asm/mach-types.h>
20
21 SND_SOC_DAILINK_DEFS(hifi,
22 DAILINK_COMP_ARRAY(COMP_CPU("ep93xx-ac97")),
23 DAILINK_COMP_ARRAY(COMP_CODEC("ac97-codec", "ac97-hifi")),
24 DAILINK_COMP_ARRAY(COMP_PLATFORM("ep93xx-ac97")));
25
26 static struct snd_soc_dai_link simone_dai = {
27 .name = "AC97",
28 .stream_name = "AC97 HiFi",
29 SND_SOC_DAILINK_REG(hifi),
30 };
31
32 static struct snd_soc_card snd_soc_simone = {
33 .name = "Sim.One",
34 .owner = THIS_MODULE,
35 .dai_link = &simone_dai,
36 .num_links = 1,
37 };
38
39 static struct platform_device *simone_snd_ac97_device;
40
simone_probe(struct platform_device * pdev)41 static int simone_probe(struct platform_device *pdev)
42 {
43 struct snd_soc_card *card = &snd_soc_simone;
44 int ret;
45
46 simone_snd_ac97_device = platform_device_register_simple("ac97-codec",
47 -1, NULL, 0);
48 if (IS_ERR(simone_snd_ac97_device))
49 return PTR_ERR(simone_snd_ac97_device);
50
51 card->dev = &pdev->dev;
52
53 ret = snd_soc_register_card(card);
54 if (ret) {
55 dev_err(&pdev->dev, "snd_soc_register_card() failed: %d\n",
56 ret);
57 platform_device_unregister(simone_snd_ac97_device);
58 }
59
60 return ret;
61 }
62
simone_remove(struct platform_device * pdev)63 static int simone_remove(struct platform_device *pdev)
64 {
65 struct snd_soc_card *card = platform_get_drvdata(pdev);
66
67 snd_soc_unregister_card(card);
68 platform_device_unregister(simone_snd_ac97_device);
69
70 return 0;
71 }
72
73 static struct platform_driver simone_driver = {
74 .driver = {
75 .name = "simone-audio",
76 },
77 .probe = simone_probe,
78 .remove = simone_remove,
79 };
80
81 module_platform_driver(simone_driver);
82
83 MODULE_DESCRIPTION("ALSA SoC Simplemachines Sim.One");
84 MODULE_AUTHOR("Mika Westerberg <mika.westerberg@iki.fi>");
85 MODULE_LICENSE("GPL");
86 MODULE_ALIAS("platform:simone-audio");
87