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 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); 86