1// SPDX-License-Identifier: GPL-2.0 2// 3// Copyright 2009 Wolfson Microelectronics 4// Mark Brown <broonie@opensource.wolfsonmicro.com> 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 21static 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 49static struct resource s3c64xx_iis0_resource[] = { 50 [0] = DEFINE_RES_MEM(S3C64XX_PA_IIS0, SZ_256), 51}; 52 53static struct s3c_audio_pdata i2s0_pdata = { 54 .cfg_gpio = s3c64xx_i2s_cfg_gpio, 55}; 56 57struct 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}; 66EXPORT_SYMBOL(s3c64xx_device_iis0); 67 68static struct resource s3c64xx_iis1_resource[] = { 69 [0] = DEFINE_RES_MEM(S3C64XX_PA_IIS1, SZ_256), 70}; 71 72static struct s3c_audio_pdata i2s1_pdata = { 73 .cfg_gpio = s3c64xx_i2s_cfg_gpio, 74}; 75 76struct 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}; 85EXPORT_SYMBOL(s3c64xx_device_iis1); 86