sound/soc/fsl/phycore-ac97.c

   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 static struct snd_soc_dai_link imx_phycore_dai_ac97[] = {
  24         {
  25                 .name           = "HiFi",
  26                 .stream_name    = "HiFi",
  27                 .codec_dai_name         = "wm9712-hifi",
  28                 .codec_name     = "wm9712-codec",
  29                 .cpu_dai_name   = "imx-ssi.0",
  30                 .platform_name  = "imx-ssi.0",
  31                 .ops            = &imx_phycore_hifi_ops,
  32         },
  33 };
  34
  35 static struct snd_soc_card imx_phycore = {
  36         .name           = "PhyCORE-ac97-audio",
  37         .owner          = THIS_MODULE,
  38         .dai_link       = imx_phycore_dai_ac97,
  39         .num_links      = ARRAY_SIZE(imx_phycore_dai_ac97),
  40 };
  41
  42 static struct platform_device *imx_phycore_snd_ac97_device;
  43 static struct platform_device *imx_phycore_snd_device;
  44
  45 static int __init imx_phycore_init(void)
  46 {
  47         int ret;
  48
  49         if (machine_is_pca100()) {
  50                 imx_audmux_v1_configure_port(MX27_AUDMUX_HPCR1_SSI0,
  51                         IMX_AUDMUX_V1_PCR_SYN | /* 4wire mode */
  52                         IMX_AUDMUX_V1_PCR_TFCSEL(3) |
  53                         IMX_AUDMUX_V1_PCR_TCLKDIR | /* clock is output */
  54                         IMX_AUDMUX_V1_PCR_RXDSEL(3));
  55                 imx_audmux_v1_configure_port(3,
  56                         IMX_AUDMUX_V1_PCR_SYN | /* 4wire mode */
  57                         IMX_AUDMUX_V1_PCR_TFCSEL(0) |
  58                         IMX_AUDMUX_V1_PCR_TFSDIR |
  59                         IMX_AUDMUX_V1_PCR_RXDSEL(0));
  60         } else if (machine_is_pcm043()) {
  61                 imx_audmux_v2_configure_port(3,
  62                         IMX_AUDMUX_V2_PTCR_SYN | /* 4wire mode */
  63                         IMX_AUDMUX_V2_PTCR_TFSEL(0) |
  64                         IMX_AUDMUX_V2_PTCR_TFSDIR,
  65                         IMX_AUDMUX_V2_PDCR_RXDSEL(0));
  66                 imx_audmux_v2_configure_port(0,
  67                         IMX_AUDMUX_V2_PTCR_SYN | /* 4wire mode */
  68                         IMX_AUDMUX_V2_PTCR_TCSEL(3) |
  69                         IMX_AUDMUX_V2_PTCR_TCLKDIR, /* clock is output */
  70                         IMX_AUDMUX_V2_PDCR_RXDSEL(3));
  71         } else {
  72                 /* return happy. We might run on a totally different machine */
  73                 return 0;
  74         }
  75
  76         imx_phycore_snd_ac97_device = platform_device_alloc("soc-audio", -1);
  77         if (!imx_phycore_snd_ac97_device)
  78                 return -ENOMEM;
  79
  80         platform_set_drvdata(imx_phycore_snd_ac97_device, &imx_phycore);
  81         ret = platform_device_add(imx_phycore_snd_ac97_device);
  82         if (ret)
  83                 goto fail1;
  84
  85         imx_phycore_snd_device = platform_device_alloc("wm9712-codec", -1);
  86         if (!imx_phycore_snd_device) {
  87                 ret = -ENOMEM;
  88                 goto fail2;
  89         }
  90         ret = platform_device_add(imx_phycore_snd_device);
  91
  92         if (ret) {
  93                 printk(KERN_ERR "ASoC: Platform device allocation failed\n");
  94                 goto fail3;
  95         }
  96
  97         return 0;
  98
  99 fail3:
 100         platform_device_put(imx_phycore_snd_device);
 101 fail2:
 102         platform_device_del(imx_phycore_snd_ac97_device);
 103 fail1:
 104         platform_device_put(imx_phycore_snd_ac97_device);
 105         return ret;
 106 }
 107
 108 static void __exit imx_phycore_exit(void)
 109 {
 110         platform_device_unregister(imx_phycore_snd_device);
 111         platform_device_unregister(imx_phycore_snd_ac97_device);
 112 }
 113
 114 late_initcall(imx_phycore_init);
 115 module_exit(imx_phycore_exit);
 116
 117 MODULE_AUTHOR("Sascha Hauer <s.hauer@pengutronix.de>");
 118 MODULE_DESCRIPTION("PhyCORE ALSA SoC driver");
 119 MODULE_LICENSE("GPL");