From 6be2a0cacc1ed6899a53172e2e9b7a3587be0bea Mon Sep 17 00:00:00 2001 From: Linus Walleij Date: Thu, 13 Aug 2009 21:42:01 +0100 Subject: [PATCH] ARM: 5668/2: U300 I2C board setup This sets up the U300 I2C subdevices so that the AB3100 analog baseband ASIC is properly detected and also the camera devices in the U335 reference design get properly registered. Signed-off-by: Linus Walleij Signed-off-by: Russell King --- arch/arm/mach-u300/Makefile | 1 + arch/arm/mach-u300/core.c | 8 +++++-- arch/arm/mach-u300/i2c.c | 43 +++++++++++++++++++++++++++++++++++++ arch/arm/mach-u300/i2c.h | 23 ++++++++++++++++++++ 4 files changed, 73 insertions(+), 2 deletions(-) create mode 100644 arch/arm/mach-u300/i2c.c create mode 100644 arch/arm/mach-u300/i2c.h diff --git a/arch/arm/mach-u300/Makefile b/arch/arm/mach-u300/Makefile index 4941f89ea79..885b5c027c1 100644 --- a/arch/arm/mach-u300/Makefile +++ b/arch/arm/mach-u300/Makefile @@ -11,3 +11,4 @@ obj-$(CONFIG_ARCH_U300) += u300.o obj-$(CONFIG_MMC) += mmc.o obj-$(CONFIG_SPI_PL022) += spi.o obj-$(CONFIG_MACH_U300_SPIDUMMY) += dummyspichip.o +obj-$(CONFIG_I2C_STU300) += i2c.o diff --git a/arch/arm/mach-u300/core.c b/arch/arm/mach-u300/core.c index 38d08a1c25d..bad1ba228cb 100644 --- a/arch/arm/mach-u300/core.c +++ b/arch/arm/mach-u300/core.c @@ -33,6 +33,7 @@ #include "clock.h" #include "mmc.h" #include "spi.h" +#include "i2c.h" /* * Static I/O mappings that are needed for booting the U300 platforms. The @@ -379,14 +380,14 @@ static struct platform_device wdog_device = { }; static struct platform_device i2c0_device = { - .name = "stddci2c", + .name = "stu300", .id = 0, .num_resources = ARRAY_SIZE(i2c0_resources), .resource = i2c0_resources, }; static struct platform_device i2c1_device = { - .name = "stddci2c", + .name = "stu300", .id = 1, .num_resources = ARRAY_SIZE(i2c1_resources), .resource = i2c1_resources, @@ -625,6 +626,9 @@ void __init u300_init_devices(void) u300_assign_physmem(); + /* Register subdevices on the I2C buses */ + u300_i2c_register_board_devices(); + /* Register subdevices on the SPI bus */ u300_spi_register_board_devices(); diff --git a/arch/arm/mach-u300/i2c.c b/arch/arm/mach-u300/i2c.c new file mode 100644 index 00000000000..10be1f888b2 --- /dev/null +++ b/arch/arm/mach-u300/i2c.c @@ -0,0 +1,43 @@ +/* + * arch/arm/mach-u300/i2c.c + * + * Copyright (C) 2009 ST-Ericsson AB + * License terms: GNU General Public License (GPL) version 2 + * + * Register board i2c devices + * Author: Linus Walleij + */ +#include +#include +#include + +static struct i2c_board_info __initdata bus0_i2c_board_info[] = { + { + .type = "ab3100", + .addr = 0x48, + .irq = IRQ_U300_IRQ0_EXT, + }, +}; + +static struct i2c_board_info __initdata bus1_i2c_board_info[] = { +#ifdef CONFIG_MACH_U300_BS335 + { + .type = "fwcam", + .addr = 0x10, + }, + { + .type = "fwcam", + .addr = 0x5d, + }, +#else + { }, +#endif +}; + +void __init u300_i2c_register_board_devices(void) +{ + i2c_register_board_info(0, bus0_i2c_board_info, + ARRAY_SIZE(bus0_i2c_board_info)); + i2c_register_board_info(1, bus1_i2c_board_info, + ARRAY_SIZE(bus1_i2c_board_info)); +} diff --git a/arch/arm/mach-u300/i2c.h b/arch/arm/mach-u300/i2c.h new file mode 100644 index 00000000000..485c02e5c06 --- /dev/null +++ b/arch/arm/mach-u300/i2c.h @@ -0,0 +1,23 @@ +/* + * arch/arm/mach-u300/i2c.h + * + * Copyright (C) 2009 ST-Ericsson AB + * License terms: GNU General Public License (GPL) version 2 + * + * Register board i2c devices + * Author: Linus Walleij + */ + +#ifndef MACH_U300_I2C_H +#define MACH_U300_I2C_H + +#ifdef CONFIG_I2C_STU300 +void __init u300_i2c_register_board_devices(void); +#else +/* Compile out this stuff if no I2C adapter is available */ +static inline void __init u300_i2c_register_board_devices(void) +{ +} +#endif + +#endif -- 2.20.1