root/sound/soc/fsl/phycore-ac97.c

DEFINITIONS

1. imx_phycore_init
2. imx_phycore_exit

   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 
  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 
 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");