arch/arm/mach-s5p64x0/dev-audio.c

   1 /* linux/arch/arm/mach-s5p64x0/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 #include <linux/gpio.h>
  14
  15 #include <plat/gpio-cfg.h>
  16 #include <plat/audio.h>
  17
  18 #include <mach/map.h>
  19 #include <mach/dma.h>
  20 #include <mach/irqs.h>
  21
  22 static const char *rclksrc[] = {
  23         [0] = "iis",
  24         [1] = "sclk_audio2",
  25 };
  26
  27 static int s5p64x0_cfg_i2s(struct platform_device *pdev)
  28 {
  29         /* configure GPIO for i2s port */
  30         switch (pdev->id) {
  31         case 0:
  32                 s3c_gpio_cfgpin_range(S5P6440_GPR(4), 5, S3C_GPIO_SFN(5));
  33                 s3c_gpio_cfgpin_range(S5P6440_GPR(13), 2, S3C_GPIO_SFN(5));
  34                 break;
  35         default:
  36                 printk(KERN_ERR "Invalid Device %d\n", pdev->id);
  37                 return -EINVAL;
  38         }
  39
  40         return 0;
  41 }
  42
  43 static struct s3c_audio_pdata s5p64x0_i2s_pdata = {
  44         .cfg_gpio = s5p64x0_cfg_i2s,
  45         .type = {
  46                 .i2s = {
  47                         .quirks = QUIRK_PRI_6CHAN,
  48                         .src_clk = rclksrc,
  49                 },
  50         },
  51 };
  52
  53 static struct resource s5p64x0_iis0_resource[] = {
  54         [0] = {
  55                 .start  = S5P64X0_PA_I2S,
  56                 .end    = S5P64X0_PA_I2S + 0x100 - 1,
  57                 .flags  = IORESOURCE_MEM,
  58         },
  59         [1] = {
  60                 .start  = DMACH_I2S0_TX,
  61                 .end    = DMACH_I2S0_TX,
  62                 .flags  = IORESOURCE_DMA,
  63         },
  64         [2] = {
  65                 .start  = DMACH_I2S0_RX,
  66                 .end    = DMACH_I2S0_RX,
  67                 .flags  = IORESOURCE_DMA,
  68         },
  69 };
  70
  71 struct platform_device s5p6440_device_iis = {
  72         .name           = "samsung-i2s",
  73         .id             = 0,
  74         .num_resources  = ARRAY_SIZE(s5p64x0_iis0_resource),
  75         .resource       = s5p64x0_iis0_resource,
  76         .dev = {
  77                 .platform_data = &s5p64x0_i2s_pdata,
  78         },
  79 };
  80
  81 struct platform_device s5p6450_device_iis0 = {
  82         .name           = "samsung-i2s",
  83         .id             = 0,
  84         .num_resources  = ARRAY_SIZE(s5p64x0_iis0_resource),
  85         .resource       = s5p64x0_iis0_resource,
  86         .dev = {
  87                 .platform_data = &s5p64x0_i2s_pdata,
  88         },
  89 };
  90
  91 /* PCM Controller platform_devices */
  92
  93 static int s5p6440_pcm_cfg_gpio(struct platform_device *pdev)
  94 {
  95         switch (pdev->id) {
  96         case 0:
  97                 s3c_gpio_cfgpin_range(S5P6440_GPR(6), 3, S3C_GPIO_SFN(2));
  98                 s3c_gpio_cfgpin_range(S5P6440_GPR(13), 2, S3C_GPIO_SFN(2));
  99                 break;
 100
 101         default:
 102                 printk(KERN_DEBUG "Invalid PCM Controller number!");
 103                 return -EINVAL;
 104         }
 105
 106         return 0;
 107 }
 108
 109 static struct s3c_audio_pdata s5p6440_pcm_pdata = {
 110         .cfg_gpio = s5p6440_pcm_cfg_gpio,
 111 };
 112
 113 static struct resource s5p6440_pcm0_resource[] = {
 114         [0] = {
 115                 .start  = S5P64X0_PA_PCM,
 116                 .end    = S5P64X0_PA_PCM + 0x100 - 1,
 117                 .flags  = IORESOURCE_MEM,
 118         },
 119         [1] = {
 120                 .start  = DMACH_PCM0_TX,
 121                 .end    = DMACH_PCM0_TX,
 122                 .flags  = IORESOURCE_DMA,
 123         },
 124         [2] = {
 125                 .start  = DMACH_PCM0_RX,
 126                 .end    = DMACH_PCM0_RX,
 127                 .flags  = IORESOURCE_DMA,
 128         },
 129 };
 130
 131 struct platform_device s5p6440_device_pcm = {
 132         .name           = "samsung-pcm",
 133         .id             = 0,
 134         .num_resources  = ARRAY_SIZE(s5p6440_pcm0_resource),
 135         .resource       = s5p6440_pcm0_resource,
 136         .dev = {
 137                 .platform_data = &s5p6440_pcm_pdata,
 138         },
 139 };