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