arch/arm/mach-s3c/dev-audio-s3c64xx.c

   1 // SPDX-License-Identifier: GPL-2.0
   2 //
   3 // Copyright 2009 Wolfson Microelectronics
   4 //      Mark Brown <[email protected]>
   5
   6 #include <linux/kernel.h>
   7 #include <linux/string.h>
   8 #include <linux/platform_device.h>
   9 #include <linux/dma-mapping.h>
  10 #include <linux/gpio.h>
  11 #include <linux/export.h>
  12
  13 #include "irqs.h"
  14 #include "map.h"
  15
  16 #include "devs.h"
  17 #include <linux/platform_data/asoc-s3c.h>
  18 #include "gpio-cfg.h"
  19 #include "gpio-samsung.h"
  20
  21 static int s3c64xx_i2s_cfg_gpio(struct platform_device *pdev)
  22 {
  23         unsigned int base;
  24
  25         switch (pdev->id) {
  26         case 0:
  27                 base = S3C64XX_GPD(0);
  28                 break;
  29         case 1:
  30                 base = S3C64XX_GPE(0);
  31                 break;
  32         case 2:
  33                 s3c_gpio_cfgpin(S3C64XX_GPC(4), S3C_GPIO_SFN(5));
  34                 s3c_gpio_cfgpin(S3C64XX_GPC(5), S3C_GPIO_SFN(5));
  35                 s3c_gpio_cfgpin(S3C64XX_GPC(7), S3C_GPIO_SFN(5));
  36                 s3c_gpio_cfgpin_range(S3C64XX_GPH(6), 4, S3C_GPIO_SFN(5));
  37                 return 0;
  38         default:
  39                 printk(KERN_DEBUG "Invalid I2S Controller number: %d\n",
  40                         pdev->id);
  41                 return -EINVAL;
  42         }
  43
  44         s3c_gpio_cfgpin_range(base, 5, S3C_GPIO_SFN(3));
  45
  46         return 0;
  47 }
  48
  49 static struct resource s3c64xx_iis0_resource[] = {
  50         [0] = DEFINE_RES_MEM(S3C64XX_PA_IIS0, SZ_256),
  51 };
  52
  53 static struct s3c_audio_pdata i2s0_pdata = {
  54         .cfg_gpio = s3c64xx_i2s_cfg_gpio,
  55 };
  56
  57 struct platform_device s3c64xx_device_iis0 = {
  58         .name             = "samsung-i2s",
  59         .id               = 0,
  60         .num_resources    = ARRAY_SIZE(s3c64xx_iis0_resource),
  61         .resource         = s3c64xx_iis0_resource,
  62         .dev = {
  63                 .platform_data = &i2s0_pdata,
  64         },
  65 };
  66 EXPORT_SYMBOL(s3c64xx_device_iis0);
  67
  68 static struct resource s3c64xx_iis1_resource[] = {
  69         [0] = DEFINE_RES_MEM(S3C64XX_PA_IIS1, SZ_256),
  70 };
  71
  72 static struct s3c_audio_pdata i2s1_pdata = {
  73         .cfg_gpio = s3c64xx_i2s_cfg_gpio,
  74 };
  75
  76 struct platform_device s3c64xx_device_iis1 = {
  77         .name             = "samsung-i2s",
  78         .id               = 1,
  79         .num_resources    = ARRAY_SIZE(s3c64xx_iis1_resource),
  80         .resource         = s3c64xx_iis1_resource,
  81         .dev = {
  82                 .platform_data = &i2s1_pdata,
  83         },
  84 };
  85 EXPORT_SYMBOL(s3c64xx_device_iis1);