arch/arm/mach-s5p6440/dev-audio.c

   1 /* linux/arch/arm/mach-s5p6440/dev-audio.c
   2  *
   3  * Copyright (c) 2010 Samsung Electronics Co. Ltd
   4  *      Jaswinder Singh <jassi.brar@samsung.com>
   5  *
   6  * This program is free software; you can redistribute it and/or modify
   7  * it under the terms of the GNU General Public License version 2 as
   8  * published by the Free Software Foundation.
   9  */
  10
  11 #include <linux/platform_device.h>
  12 #include <linux/dma-mapping.h>
  13
  14 #include <plat/gpio-cfg.h>
  15 #include <plat/audio.h>
  16
  17 #include <mach/gpio.h>
  18 #include <mach/map.h>
  19 #include <mach/dma.h>
  20 #include <mach/irqs.h>
  21
  22 static int s5p6440_cfg_i2s(struct platform_device *pdev)
  23 {
  24         /* configure GPIO for i2s port */
  25         switch (pdev->id) {
  26         case -1:
  27                 s3c_gpio_cfgpin(S5P6440_GPR(4), S3C_GPIO_SFN(5));
  28                 s3c_gpio_cfgpin(S5P6440_GPR(5), S3C_GPIO_SFN(5));
  29                 s3c_gpio_cfgpin(S5P6440_GPR(6), S3C_GPIO_SFN(5));
  30                 s3c_gpio_cfgpin(S5P6440_GPR(7), S3C_GPIO_SFN(5));
  31                 s3c_gpio_cfgpin(S5P6440_GPR(8), S3C_GPIO_SFN(5));
  32                 s3c_gpio_cfgpin(S5P6440_GPR(13), S3C_GPIO_SFN(5));
  33                 s3c_gpio_cfgpin(S5P6440_GPR(14), S3C_GPIO_SFN(5));
  34                 break;
  35
  36         default:
  37                 printk(KERN_ERR "Invalid Device %d\n", pdev->id);
  38                 return -EINVAL;
  39         }
  40
  41         return 0;
  42 }
  43
  44 static struct s3c_audio_pdata s3c_i2s_pdata = {
  45         .cfg_gpio = s5p6440_cfg_i2s,
  46 };
  47
  48 static struct resource s5p6440_iis0_resource[] = {
  49         [0] = {
  50                 .start = S5P6440_PA_I2S,
  51                 .end   = S5P6440_PA_I2S + 0x100 - 1,
  52                 .flags = IORESOURCE_MEM,
  53         },
  54         [1] = {
  55                 .start = DMACH_I2S0_TX,
  56                 .end   = DMACH_I2S0_TX,
  57                 .flags = IORESOURCE_DMA,
  58         },
  59         [2] = {
  60                 .start = DMACH_I2S0_RX,
  61                 .end   = DMACH_I2S0_RX,
  62                 .flags = IORESOURCE_DMA,
  63         },
  64 };
  65
  66 struct platform_device s5p6440_device_iis = {
  67         .name             = "s3c64xx-iis-v4",
  68         .id               = -1,
  69         .num_resources    = ARRAY_SIZE(s5p6440_iis0_resource),
  70         .resource         = s5p6440_iis0_resource,
  71         .dev = {
  72                 .platform_data = &s3c_i2s_pdata,
  73         },
  74 };
  75
  76 /* PCM Controller platform_devices */
  77
  78 static int s5p6440_pcm_cfg_gpio(struct platform_device *pdev)
  79 {
  80         switch (pdev->id) {
  81         case 0:
  82                 s3c_gpio_cfgpin(S5P6440_GPR(7), S3C_GPIO_SFN(2));
  83                 s3c_gpio_cfgpin(S5P6440_GPR(13), S3C_GPIO_SFN(2));
  84                 s3c_gpio_cfgpin(S5P6440_GPR(14), S3C_GPIO_SFN(2));
  85                 s3c_gpio_cfgpin(S5P6440_GPR(8), S3C_GPIO_SFN(2));
  86                 s3c_gpio_cfgpin(S5P6440_GPR(6), S3C_GPIO_SFN(2));
  87                 break;
  88
  89         default:
  90                 printk(KERN_DEBUG "Invalid PCM Controller number!");
  91                 return -EINVAL;
  92         }
  93
  94         return 0;
  95 }
  96
  97 static struct s3c_audio_pdata s3c_pcm_pdata = {
  98         .cfg_gpio = s5p6440_pcm_cfg_gpio,
  99 };
 100
 101 static struct resource s5p6440_pcm0_resource[] = {
 102         [0] = {
 103                 .start = S5P6440_PA_PCM,
 104                 .end   = S5P6440_PA_PCM + 0x100 - 1,
 105                 .flags = IORESOURCE_MEM,
 106         },
 107         [1] = {
 108                 .start = DMACH_PCM0_TX,
 109                 .end   = DMACH_PCM0_TX,
 110                 .flags = IORESOURCE_DMA,
 111         },
 112         [2] = {
 113                 .start = DMACH_PCM0_RX,
 114                 .end   = DMACH_PCM0_RX,
 115                 .flags = IORESOURCE_DMA,
 116         },
 117 };
 118
 119 struct platform_device s5p6440_device_pcm = {
 120         .name             = "samsung-pcm",
 121         .id               = 0,
 122         .num_resources    = ARRAY_SIZE(s5p6440_pcm0_resource),
 123         .resource         = s5p6440_pcm0_resource,
 124         .dev = {
 125                 .platform_data = &s3c_pcm_pdata,
 126         },
 127 };