Tomasz Stanislawski wrote:
>
> Signed-off-by: Tomasz Stanislawski <t.stanislaws@xxxxxxxxxxx>
> Signed-off-by: Kyungmin Park <kyungmin.park@xxxxxxxxxxx>
> ---
> arch/arm/mach-s5pv310/clock.c | 6 +++
> arch/arm/mach-s5pv310/include/mach/irqs.h | 4 ++
> arch/arm/mach-s5pv310/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.h | 1 +
> 8 files changed, 87 insertions(+), 0 deletions(-)
> create mode 100644 arch/arm/plat-samsung/dev-i2c8.c
>
> diff --git a/arch/arm/mach-s5pv310/clock.c b/arch/arm/mach-s5pv310/clock.c
> index d28fa6f..465beb9 100644
> --- a/arch/arm/mach-s5pv310/clock.c
> +++ b/arch/arm/mach-s5pv310/clock.c
> @@ -685,6 +685,12 @@ static struct clk init_clocks_off[] = {
> .parent = &clk_aclk_100.clk,
> .enable = s5pv310_clk_ip_peril_ctrl,
> .ctrlbit = (1 << 13),
> + }, {
> + .name = "i2c",
> + .id = 8,
> + .parent = &clk_aclk_100.clk,
> + .enable = s5pv310_clk_ip_peril_ctrl,
> + .ctrlbit = (1 << 14),
> },
> };
>
> diff --git a/arch/arm/mach-s5pv310/include/mach/irqs.h b/arch/arm/mach-
> s5pv310/include/mach/irqs.h
> index f6b99c6..f7ddc98 100644
> --- a/arch/arm/mach-s5pv310/include/mach/irqs.h
> +++ b/arch/arm/mach-s5pv310/include/mach/irqs.h
> @@ -77,6 +77,9 @@
> #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)
> @@ -100,6 +103,7 @@
> #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-s5pv310/include/mach/map.h b/arch/arm/mach-
> s5pv310/include/mach/map.h
> index 576ba55..0aa0171 100644
> --- a/arch/arm/mach-s5pv310/include/mach/map.h
> +++ b/arch/arm/mach-s5pv310/include/mach/map.h
> @@ -120,6 +120,7 @@
> #define S3C_PA_IIC5 S5PV310_PA_IIC(5)
> #define S3C_PA_IIC6 S5PV310_PA_IIC(6)
> #define S3C_PA_IIC7 S5PV310_PA_IIC(7)
> +#define S3C_PA_IIC8 S5PV310_PA_IIC(8)
> #define S3C_PA_RTC S5PV310_PA_RTC
> #define S3C_PA_WDT S5PV310_PA_WATCHDOG
>
> diff --git a/arch/arm/plat-samsung/Kconfig b/arch/arm/plat-samsung/Kconfig
> index 32be05c..dd1fd15 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 7e92457..826ae4f 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..8edba7f
> --- /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-hdmiphy-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 6a869b8..f14709c 100644
> --- a/arch/arm/plat-samsung/include/plat/devs.h
> +++ b/arch/arm/plat-samsung/include/plat/devs.h
> @@ -53,6 +53,7 @@ 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.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);
> --
> 1.7.1.569.g6f426
Basically, EXYNOS4 can't support I2C channel 8 for general purpose.
Yeah, it is dedicated to HDMI..it means we can't use i2c8 stuff...
(As a note, I2C interface for HDMI PHY is internally connected.)
Thanks.
Best regards,
Kgene.
--
Kukjin Kim <kgene.kim@xxxxxxxxxxx>, Senior Engineer,
SW Solution Development Team, Samsung Electronics Co., Ltd.
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