[PATCH 2/4] exynos4: add i2c controller 8 (HDMIPHY)

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Signed-off-by: Tomasz Stanislawski <t.stanislaws@xxxxxxxxxxx>
Signed-off-by: Kyungmin Park <kyungmin.park@xxxxxxxxxxx>
---
 arch/arm/mach-exynos4/clock.c                 |    6 ++
 arch/arm/mach-exynos4/cpu.c                   |    3 +
 arch/arm/mach-exynos4/include/mach/irqs.h     |    4 ++
 arch/arm/mach-exynos4/include/mach/map.h      |    1 +
 arch/arm/plat-samsung/Kconfig                 |    5 ++
 arch/arm/plat-samsung/Makefile                |    1 +
 arch/arm/plat-samsung/dev-i2c8.c              |   68 +++++++++++++++++++++++++
 arch/arm/plat-samsung/include/plat/devs.h     |    1 +
 arch/arm/plat-samsung/include/plat/iic-core.h |    7 +++
 arch/arm/plat-samsung/include/plat/iic.h      |    1 +
 10 files changed, 97 insertions(+), 0 deletions(-)
 create mode 100644 arch/arm/plat-samsung/dev-i2c8.c

diff --git a/arch/arm/mach-exynos4/clock.c b/arch/arm/mach-exynos4/clock.c
index 963195e..40a231a 100644
--- a/arch/arm/mach-exynos4/clock.c
+++ b/arch/arm/mach-exynos4/clock.c
@@ -619,6 +619,12 @@ static struct clk init_clocks_off[] = {
 		.enable		= exynos4_clk_ip_peril_ctrl,
 		.ctrlbit	= (1 << 13),
 	}, {
+		.name           = "i2c",
+		.id             = 8,
+		.parent         = &clk_aclk_100.clk,
+		.enable         = exynos4_clk_ip_peril_ctrl,
+		.ctrlbit        = (1 << 14),
+	}, {
 		.name		= "sysmmu",
 		.id		= S5P_SYSMMU_MDMA,
 		.enable		= exynos4_clk_ip_image_ctrl,
diff --git a/arch/arm/mach-exynos4/cpu.c b/arch/arm/mach-exynos4/cpu.c
index 7930113..52b145e 100644
--- a/arch/arm/mach-exynos4/cpu.c
+++ b/arch/arm/mach-exynos4/cpu.c
@@ -23,6 +23,7 @@
 #include <plat/sdhci.h>
 #include <plat/devs.h>
 #include <plat/fimc-core.h>
+#include <plat/iic-core.h>
 
 #include <mach/regs-irq.h>
 
@@ -123,6 +124,8 @@ void __init exynos4_map_io(void)
 	exynos4_default_sdhci2();
 	exynos4_default_sdhci3();
 
+	s3c_i2c8_setname("s3c2440-hdmiphy-i2c");
+
 	s3c_fimc_setname(0, "exynos4-fimc");
 	s3c_fimc_setname(1, "exynos4-fimc");
 	s3c_fimc_setname(2, "exynos4-fimc");
diff --git a/arch/arm/mach-exynos4/include/mach/irqs.h b/arch/arm/mach-exynos4/include/mach/irqs.h
index ad1d00c..dd048f8 100644
--- a/arch/arm/mach-exynos4/include/mach/irqs.h
+++ b/arch/arm/mach-exynos4/include/mach/irqs.h
@@ -76,6 +76,9 @@
 #define IRQ_PDMA0		COMBINER_IRQ(21, 0)
 #define IRQ_PDMA1		COMBINER_IRQ(21, 1)
 
+#define IRQ_HDMI		COMBINER_IRQ(16, 0)
+#define IRQ_HDMI_I2C		COMBINER_IRQ(16, 1)
+
 #define IRQ_TIMER0_VIC		COMBINER_IRQ(22, 0)
 #define IRQ_TIMER1_VIC		COMBINER_IRQ(22, 1)
 #define IRQ_TIMER2_VIC		COMBINER_IRQ(22, 2)
@@ -102,6 +105,7 @@
 #define IRQ_IIC5		COMBINER_IRQ(27, 5)
 #define IRQ_IIC6		COMBINER_IRQ(27, 6)
 #define IRQ_IIC7		COMBINER_IRQ(27, 7)
+#define IRQ_IIC8		IRQ_HDMI_I2C
 
 #define IRQ_HSMMC0		COMBINER_IRQ(29, 0)
 #define IRQ_HSMMC1		COMBINER_IRQ(29, 1)
diff --git a/arch/arm/mach-exynos4/include/mach/map.h b/arch/arm/mach-exynos4/include/mach/map.h
index 862967f..ff98626 100644
--- a/arch/arm/mach-exynos4/include/mach/map.h
+++ b/arch/arm/mach-exynos4/include/mach/map.h
@@ -127,6 +127,7 @@
 #define S3C_PA_IIC5			EXYNOS4_PA_IIC(5)
 #define S3C_PA_IIC6			EXYNOS4_PA_IIC(6)
 #define S3C_PA_IIC7			EXYNOS4_PA_IIC(7)
+#define S3C_PA_IIC8			EXYNOS4_PA_IIC(8)
 #define S3C_PA_RTC			EXYNOS4_PA_RTC
 #define S3C_PA_WDT			EXYNOS4_PA_WATCHDOG
 
diff --git a/arch/arm/plat-samsung/Kconfig b/arch/arm/plat-samsung/Kconfig
index be72100..c764227 100644
--- a/arch/arm/plat-samsung/Kconfig
+++ b/arch/arm/plat-samsung/Kconfig
@@ -211,6 +211,11 @@ config S3C_DEV_I2C7
 	help
 	  Compile in platform device definition for I2C controller 7
 
+config S3C_DEV_I2C8
+	bool
+	help
+	  Compile in platform device definitions for I2C channel 8 (HDMIPHY)
+
 config S3C_DEV_FB
 	bool
 	help
diff --git a/arch/arm/plat-samsung/Makefile b/arch/arm/plat-samsung/Makefile
index e9de58a..752df43 100644
--- a/arch/arm/plat-samsung/Makefile
+++ b/arch/arm/plat-samsung/Makefile
@@ -46,6 +46,7 @@ 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-$(CONFIG_S3C_DEV_I2C8)	+= dev-i2c8.o
 obj-$(CONFIG_S3C_DEV_FB)	+= dev-fb.o
 obj-y				+= dev-uart.o
 obj-$(CONFIG_S3C_DEV_USB_HOST)	+= dev-usb.o
diff --git a/arch/arm/plat-samsung/dev-i2c8.c b/arch/arm/plat-samsung/dev-i2c8.c
new file mode 100644
index 0000000..1a4a4aa
--- /dev/null
+++ b/arch/arm/plat-samsung/dev-i2c8.c
@@ -0,0 +1,68 @@
+/* linux/arch/arm/plat-samsung/dev-i2c7.c
+ *
+ * Copyright (c) 2010 Samsung Electronics Co., Ltd.
+ *		http://www.samsung.com/
+ *
+ * S3C series device definition for i2c device 8
+ *
+ * Based on plat-samsung/dev-i2c8.c
+ *
+ * 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_IIC8,
+		.end   = S3C_PA_IIC8 + SZ_4K - 1,
+		.flags = IORESOURCE_MEM,
+	},
+	[1] = {
+		.start = IRQ_IIC8,
+		.end   = IRQ_IIC8,
+		.flags = IORESOURCE_IRQ,
+	},
+};
+
+struct platform_device s3c_device_i2c8 = {
+	.name		  = "s3c2440-i2c",
+	.id		  = 8,
+	.num_resources	  = ARRAY_SIZE(s3c_i2c_resource),
+	.resource	  = s3c_i2c_resource,
+};
+
+static struct s3c2410_platform_i2c default_i2c_data8 __initdata = {
+	.flags		= 0,
+	.bus_num	= 8,
+	.slave_addr	= 0x10,
+	.frequency	= 400*1000,
+	.sda_delay	= 100,
+};
+
+void __init s3c_i2c8_set_platdata(struct s3c2410_platform_i2c *pd)
+{
+	struct s3c2410_platform_i2c *npd;
+
+	if (!pd)
+		pd = &default_i2c_data8;
+
+	npd = kmemdup(pd, sizeof(struct s3c2410_platform_i2c), GFP_KERNEL);
+	if (!npd)
+		printk(KERN_ERR "%s: no memory for platform data\n", __func__);
+
+	s3c_device_i2c8.dev.platform_data = npd;
+}
diff --git a/arch/arm/plat-samsung/include/plat/devs.h b/arch/arm/plat-samsung/include/plat/devs.h
index 0ae5dd0..d240fd3 100644
--- a/arch/arm/plat-samsung/include/plat/devs.h
+++ b/arch/arm/plat-samsung/include/plat/devs.h
@@ -56,6 +56,7 @@ extern struct platform_device s3c_device_i2c4;
 extern struct platform_device s3c_device_i2c5;
 extern struct platform_device s3c_device_i2c6;
 extern struct platform_device s3c_device_i2c7;
+extern struct platform_device s3c_device_i2c8;
 extern struct platform_device s3c_device_rtc;
 extern struct platform_device s3c_device_adc;
 extern struct platform_device s3c_device_sdi;
diff --git a/arch/arm/plat-samsung/include/plat/iic-core.h b/arch/arm/plat-samsung/include/plat/iic-core.h
index f182669..97ecc44 100644
--- a/arch/arm/plat-samsung/include/plat/iic-core.h
+++ b/arch/arm/plat-samsung/include/plat/iic-core.h
@@ -39,4 +39,11 @@ static inline void s3c_i2c2_setname(char *name)
 #endif
 }
 
+static inline void s3c_i2c8_setname(char *name)
+{
+#ifdef CONFIG_S3C_DEV_I2C8
+	s3c_device_i2c8.name = name;
+#endif
+}
+
 #endif /* __ASM_ARCH_IIC_H */
diff --git a/arch/arm/plat-samsung/include/plat/iic.h b/arch/arm/plat-samsung/include/plat/iic.h
index 1543da8..dd0d728 100644
--- a/arch/arm/plat-samsung/include/plat/iic.h
+++ b/arch/arm/plat-samsung/include/plat/iic.h
@@ -60,6 +60,7 @@ extern void s3c_i2c4_set_platdata(struct s3c2410_platform_i2c *i2c);
 extern void s3c_i2c5_set_platdata(struct s3c2410_platform_i2c *i2c);
 extern void s3c_i2c6_set_platdata(struct s3c2410_platform_i2c *i2c);
 extern void s3c_i2c7_set_platdata(struct s3c2410_platform_i2c *i2c);
+extern void s3c_i2c8_set_platdata(struct s3c2410_platform_i2c *i2c);
 
 /* defined by architecture to configure gpio */
 extern void s3c_i2c0_cfg_gpio(struct platform_device *dev);
-- 
1.7.4.3
--
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