ARM: S5PV310: Add I2C channel 3, 4, 5, 6, and 7 device support

S5PV310 and S5PC210 support more I2C devices than previous SoCs.
Add the device support code for them.

Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>

arch/arm/Kconfig

@@ -736,6 +736,7 @@ config ARCH_S5PV310
 	select HAVE_CLK
 	select GENERIC_CLOCKEVENTS
 	select HAVE_S3C_RTC
+	select HAVE_S3C2410_I2C
 	select HAVE_S3C2410_WATCHDOG
 	help
 	  Samsung S5PV310 series based systems

arch/arm/mach-s5pv310/Kconfig

@@ -24,6 +24,31 @@ config S5PV310_SETUP_I2C2
 	help
 	  Common setup code for i2c bus 2.
 
+config S5PV310_SETUP_I2C3
+	bool
+	help
+	  Common setup code for i2c bus 3.
+
+config S5PV310_SETUP_I2C4
+	bool
+	help
+	  Common setup code for i2c bus 4.
+
+config S5PV310_SETUP_I2C5
+	bool
+	help
+	  Common setup code for i2c bus 5.
+
+config S5PV310_SETUP_I2C6
+	bool
+	help
+	  Common setup code for i2c bus 6.
+
+config S5PV310_SETUP_I2C7
+	bool
+	help
+	  Common setup code for i2c bus 7.
+
 config S5PV310_SETUP_SDHCI
 	bool
 	select S5PV310_SETUP_SDHCI_GPIO

arch/arm/mach-s5pv310/Makefile

@@ -29,5 +29,10 @@ obj-$(CONFIG_MACH_UNIVERSAL_C210)	+= mach-universal_c210.o
 
 obj-$(CONFIG_S5PV310_SETUP_I2C1)	+= setup-i2c1.o
 obj-$(CONFIG_S5PV310_SETUP_I2C2)	+= setup-i2c2.o
+obj-$(CONFIG_S5PV310_SETUP_I2C3)	+= setup-i2c3.o
+obj-$(CONFIG_S5PV310_SETUP_I2C4)	+= setup-i2c4.o
+obj-$(CONFIG_S5PV310_SETUP_I2C5)	+= setup-i2c5.o
+obj-$(CONFIG_S5PV310_SETUP_I2C6)	+= setup-i2c6.o
+obj-$(CONFIG_S5PV310_SETUP_I2C7)	+= setup-i2c7.o
 obj-$(CONFIG_S5PV310_SETUP_SDHCI)	+= setup-sdhci.o
 obj-$(CONFIG_S5PV310_SETUP_SDHCI_GPIO)	+= setup-sdhci-gpio.o

arch/arm/mach-s5pv310/setup-i2c3.c

@@ -0,0 +1,23 @@
+/*
+ * linux/arch/arm/mach-s5pv310/setup-i2c3.c
+ *
+ * Copyright (c) 2010 Samsung Electronics Co., Ltd.
+ *
+ * I2C3 GPIO configuration.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+*/
+
+struct platform_device; /* don't need the contents */
+
+#include <linux/gpio.h>
+#include <plat/iic.h>
+#include <plat/gpio-cfg.h>
+
+void s3c_i2c3_cfg_gpio(struct platform_device *dev)
+{
+	s3c_gpio_cfgall_range(S5PV310_GPA1(2), 2,
+			      S3C_GPIO_SFN(3), S3C_GPIO_PULL_UP);
+}

arch/arm/mach-s5pv310/setup-i2c4.c

@@ -0,0 +1,23 @@
+/*
+ * linux/arch/arm/mach-s5pv310/setup-i2c4.c
+ *
+ * Copyright (c) 2010 Samsung Electronics Co., Ltd.
+ *
+ * I2C4 GPIO configuration.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+*/
+
+struct platform_device; /* don't need the contents */
+
+#include <linux/gpio.h>
+#include <plat/iic.h>
+#include <plat/gpio-cfg.h>
+
+void s3c_i2c4_cfg_gpio(struct platform_device *dev)
+{
+	s3c_gpio_cfgall_range(S5PV310_GPB(2), 2,
+			      S3C_GPIO_SFN(3), S3C_GPIO_PULL_UP);
+}

arch/arm/mach-s5pv310/setup-i2c5.c

@@ -0,0 +1,23 @@
+/*
+ * linux/arch/arm/mach-s5pv310/setup-i2c5.c
+ *
+ * Copyright (c) 2010 Samsung Electronics Co., Ltd.
+ *
+ * I2C5 GPIO configuration.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+*/
+
+struct platform_device; /* don't need the contents */
+
+#include <linux/gpio.h>
+#include <plat/iic.h>
+#include <plat/gpio-cfg.h>
+
+void s3c_i2c5_cfg_gpio(struct platform_device *dev)
+{
+	s3c_gpio_cfgall_range(S5PV310_GPB(6), 2,
+			      S3C_GPIO_SFN(3), S3C_GPIO_PULL_UP);
+}

arch/arm/mach-s5pv310/setup-i2c6.c

@@ -0,0 +1,23 @@
+/*
+ * linux/arch/arm/mach-s5pv310/setup-i2c6.c
+ *
+ * Copyright (c) 2010 Samsung Electronics Co., Ltd.
+ *
+ * I2C6 GPIO configuration.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+*/
+
+struct platform_device; /* don't need the contents */
+
+#include <linux/gpio.h>
+#include <plat/iic.h>
+#include <plat/gpio-cfg.h>
+
+void s3c_i2c6_cfg_gpio(struct platform_device *dev)
+{
+	s3c_gpio_cfgall_range(S5PV310_GPC1(3), 2,
+			      S3C_GPIO_SFN(4), S3C_GPIO_PULL_UP);
+}

arch/arm/mach-s5pv310/setup-i2c7.c

@@ -0,0 +1,23 @@
+/*
+ * linux/arch/arm/mach-s5pv310/setup-i2c7.c
+ *
+ * Copyright (c) 2010 Samsung Electronics Co., Ltd.
+ *
+ * I2C7 GPIO configuration.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+*/
+
+struct platform_device; /* don't need the contents */
+
+#include <linux/gpio.h>
+#include <plat/iic.h>
+#include <plat/gpio-cfg.h>
+
+void s3c_i2c7_cfg_gpio(struct platform_device *dev)
+{
+	s3c_gpio_cfgall_range(S5PV310_GPD0(2), 2,
+			      S3C_GPIO_SFN(3), S3C_GPIO_PULL_UP);
+}

arch/arm/plat-samsung/Kconfig

@@ -180,6 +180,31 @@ config S3C_DEV_I2C2
 	help
 	  Compile in platform device definitions for I2C channel 2
 
+config S3C_DEV_I2C3
+	bool
+	help
+	  Compile in platform device definition for I2C controller 3
+
+config S3C_DEV_I2C4
+	bool
+	help
+	  Compile in platform device definition for I2C controller 4
+
+config S3C_DEV_I2C5
+	bool
+	help
+	  Compile in platform device definition for I2C controller 5
+
+config S3C_DEV_I2C6
+	bool
+	help
+	  Compile in platform device definition for I2C controller 6
+
+config S3C_DEV_I2C7
+	bool
+	help
+	  Compile in platform device definition for I2C controller 7
+
 config S3C_DEV_FB
 	bool
 	help

arch/arm/plat-samsung/Makefile

@@ -40,6 +40,11 @@ obj-$(CONFIG_S3C_DEV_HWMON)	+= dev-hwmon.o
 obj-y				+= dev-i2c0.o
 obj-$(CONFIG_S3C_DEV_I2C1)	+= dev-i2c1.o
 obj-$(CONFIG_S3C_DEV_I2C2)	+= dev-i2c2.o
+obj-$(CONFIG_S3C_DEV_I2C3)	+= dev-i2c3.o
+obj-$(CONFIG_S3C_DEV_I2C4)	+= dev-i2c4.o
+obj-$(CONFIG_S3C_DEV_I2C5)	+= dev-i2c5.o
+obj-$(CONFIG_S3C_DEV_I2C6)	+= dev-i2c6.o
+obj-$(CONFIG_S3C_DEV_I2C7)	+= dev-i2c7.o
 obj-$(CONFIG_S3C_DEV_FB)	+= dev-fb.o
 obj-y				+= dev-uart.o
 obj-$(CONFIG_S3C_DEV_USB_HOST)	+= dev-usb.o

arch/arm/plat-samsung/dev-i2c3.c

@@ -0,0 +1,68 @@
+/* linux/arch/arm/plat-samsung/dev-i2c3.c
+ *
+ * Copyright (c) 2010 Samsung Electronics Co., Ltd.
+ *		http://www.samsung.com/
+ *
+ * S5P series device definition for i2c device 3
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#include <linux/gfp.h>
+#include <linux/kernel.h>
+#include <linux/string.h>
+#include <linux/platform_device.h>
+
+#include <mach/irqs.h>
+#include <mach/map.h>
+
+#include <plat/regs-iic.h>
+#include <plat/iic.h>
+#include <plat/devs.h>
+#include <plat/cpu.h>
+
+static struct resource s3c_i2c_resource[] = {
+	[0] = {
+		.start	= S3C_PA_IIC3,
+		.end	= S3C_PA_IIC3 + SZ_4K - 1,
+		.flags	= IORESOURCE_MEM,
+	},
+	[1] = {
+		.start	= IRQ_IIC3,
+		.end	= IRQ_IIC3,
+		.flags	= IORESOURCE_IRQ,
+	},
+};
+
+struct platform_device s3c_device_i2c3 = {
+	.name		= "s3c2440-i2c",
+	.id		= 3,
+	.num_resources	= ARRAY_SIZE(s3c_i2c_resource),
+	.resource	= s3c_i2c_resource,
+};
+
+static struct s3c2410_platform_i2c default_i2c_data3 __initdata = {
+	.flags		= 0,
+	.bus_num	= 3,
+	.slave_addr	= 0x10,
+	.frequency	= 100*1000,
+	.sda_delay	= 100,
+};
+
+void __init s3c_i2c3_set_platdata(struct s3c2410_platform_i2c *pd)
+{
+	struct s3c2410_platform_i2c *npd;
+
+	if (!pd)
+		pd = &default_i2c_data3;
+
+	npd = kmemdup(pd, sizeof(struct s3c2410_platform_i2c), GFP_KERNEL);
+	if (!npd)
+		printk(KERN_ERR "%s: no memory for platform data\n", __func__);
+	else if (!npd->cfg_gpio)
+		npd->cfg_gpio = s3c_i2c3_cfg_gpio;
+
+	s3c_device_i2c3.dev.platform_data = npd;
+}

arch/arm/plat-samsung/dev-i2c4.c

@@ -0,0 +1,68 @@
+/* linux/arch/arm/plat-samsung/dev-i2c4.c
+ *
+ * Copyright (c) 2010 Samsung Electronics Co., Ltd.
+ *		http://www.samsung.com/
+ *
+ * S5P series device definition for i2c device 3
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#include <linux/gfp.h>
+#include <linux/kernel.h>
+#include <linux/string.h>
+#include <linux/platform_device.h>
+
+#include <mach/irqs.h>
+#include <mach/map.h>
+
+#include <plat/regs-iic.h>
+#include <plat/iic.h>
+#include <plat/devs.h>
+#include <plat/cpu.h>
+
+static struct resource s3c_i2c_resource[] = {
+	[0] = {
+		.start	= S3C_PA_IIC4,
+		.end	= S3C_PA_IIC4 + SZ_4K - 1,
+		.flags	= IORESOURCE_MEM,
+	},
+	[1] = {
+		.start	= IRQ_IIC4,
+		.end	= IRQ_IIC4,
+		.flags	= IORESOURCE_IRQ,
+	},
+};
+
+struct platform_device s3c_device_i2c4 = {
+	.name		= "s3c2440-i2c",
+	.id		= 4,
+	.num_resources	= ARRAY_SIZE(s3c_i2c_resource),
+	.resource	= s3c_i2c_resource,
+};
+
+static struct s3c2410_platform_i2c default_i2c_data4 __initdata = {
+	.flags		= 0,
+	.bus_num	= 4,
+	.slave_addr	= 0x10,
+	.frequency	= 100*1000,
+	.sda_delay	= 100,
+};
+
+void __init s3c_i2c4_set_platdata(struct s3c2410_platform_i2c *pd)
+{
+	struct s3c2410_platform_i2c *npd;
+
+	if (!pd)
+		pd = &default_i2c_data4;
+
+	npd = kmemdup(pd, sizeof(struct s3c2410_platform_i2c), GFP_KERNEL);
+	if (!npd)
+		printk(KERN_ERR "%s: no memory for platform data\n", __func__);
+	else if (!npd->cfg_gpio)
+		npd->cfg_gpio = s3c_i2c4_cfg_gpio;
+
+	s3c_device_i2c4.dev.platform_data = npd;
+}