1 // SPDX-License-Identifier: GPL-2.0+
2 //
3 // phycore-ac97.c -- SoC audio for imx_phycore in AC97 mode
4 //
5 // Copyright 2009 Sascha Hauer, Pengutronix <s.hauer@pengutronix.de>
6
7 #include <linux/module.h>
8 #include <linux/moduleparam.h>
9 #include <linux/device.h>
10 #include <linux/i2c.h>
11 #include <sound/core.h>
12 #include <sound/pcm.h>
13 #include <sound/soc.h>
14 #include <asm/mach-types.h>
15
16 #include "imx-audmux.h"
17
18 static struct snd_soc_card imx_phycore;
19
20 static const struct snd_soc_ops imx_phycore_hifi_ops = {
21 };
22
23 SND_SOC_DAILINK_DEFS(hifi,
24 DAILINK_COMP_ARRAY(COMP_CPU("imx-ssi.0")),
25 DAILINK_COMP_ARRAY(COMP_CODEC("wm9712-codec", "wm9712-hifi")),
26 DAILINK_COMP_ARRAY(COMP_PLATFORM("imx-ssi.0")));
27
28 static struct snd_soc_dai_link imx_phycore_dai_ac97[] = {
29 {
30 .name = "HiFi",
31 .stream_name = "HiFi",
32 .ops = &imx_phycore_hifi_ops,
33 SND_SOC_DAILINK_REG(hifi),
34 },
35 };
36
37 static struct snd_soc_card imx_phycore = {
38 .name = "PhyCORE-ac97-audio",
39 .owner = THIS_MODULE,
40 .dai_link = imx_phycore_dai_ac97,
41 .num_links = ARRAY_SIZE(imx_phycore_dai_ac97),
42 };
43
44 static struct platform_device *imx_phycore_snd_ac97_device;
45 static struct platform_device *imx_phycore_snd_device;
46
imx_phycore_init(void)47 static int __init imx_phycore_init(void)
48 {
49 int ret;
50
51 if (machine_is_pca100()) {
52 imx_audmux_v1_configure_port(MX27_AUDMUX_HPCR1_SSI0,
53 IMX_AUDMUX_V1_PCR_SYN | /* 4wire mode */
54 IMX_AUDMUX_V1_PCR_TFCSEL(3) |
55 IMX_AUDMUX_V1_PCR_TCLKDIR | /* clock is output */
56 IMX_AUDMUX_V1_PCR_RXDSEL(3));
57 imx_audmux_v1_configure_port(3,
58 IMX_AUDMUX_V1_PCR_SYN | /* 4wire mode */
59 IMX_AUDMUX_V1_PCR_TFCSEL(0) |
60 IMX_AUDMUX_V1_PCR_TFSDIR |
61 IMX_AUDMUX_V1_PCR_RXDSEL(0));
62 } else if (machine_is_pcm043()) {
63 imx_audmux_v2_configure_port(3,
64 IMX_AUDMUX_V2_PTCR_SYN | /* 4wire mode */
65 IMX_AUDMUX_V2_PTCR_TFSEL(0) |
66 IMX_AUDMUX_V2_PTCR_TFSDIR,
67 IMX_AUDMUX_V2_PDCR_RXDSEL(0));
68 imx_audmux_v2_configure_port(0,
69 IMX_AUDMUX_V2_PTCR_SYN | /* 4wire mode */
70 IMX_AUDMUX_V2_PTCR_TCSEL(3) |
71 IMX_AUDMUX_V2_PTCR_TCLKDIR, /* clock is output */
72 IMX_AUDMUX_V2_PDCR_RXDSEL(3));
73 } else {
74 /* return happy. We might run on a totally different machine */
75 return 0;
76 }
77
78 imx_phycore_snd_ac97_device = platform_device_alloc("soc-audio", -1);
79 if (!imx_phycore_snd_ac97_device)
80 return -ENOMEM;
81
82 platform_set_drvdata(imx_phycore_snd_ac97_device, &imx_phycore);
83 ret = platform_device_add(imx_phycore_snd_ac97_device);
84 if (ret)
85 goto fail1;
86
87 imx_phycore_snd_device = platform_device_alloc("wm9712-codec", -1);
88 if (!imx_phycore_snd_device) {
89 ret = -ENOMEM;
90 goto fail2;
91 }
92 ret = platform_device_add(imx_phycore_snd_device);
93
94 if (ret) {
95 printk(KERN_ERR "ASoC: Platform device allocation failed\n");
96 goto fail3;
97 }
98
99 return 0;
100
101 fail3:
102 platform_device_put(imx_phycore_snd_device);
103 fail2:
104 platform_device_del(imx_phycore_snd_ac97_device);
105 fail1:
106 platform_device_put(imx_phycore_snd_ac97_device);
107 return ret;
108 }
109
imx_phycore_exit(void)110 static void __exit imx_phycore_exit(void)
111 {
112 platform_device_unregister(imx_phycore_snd_device);
113 platform_device_unregister(imx_phycore_snd_ac97_device);
114 }
115
116 late_initcall(imx_phycore_init);
117 module_exit(imx_phycore_exit);
118
119 MODULE_AUTHOR("Sascha Hauer <s.hauer@pengutronix.de>");
120 MODULE_DESCRIPTION("PhyCORE ALSA SoC driver");
121 MODULE_LICENSE("GPL");
122
