diff options
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/arm/include/asm/hardware/iop3xx.h | 2 | ||||
| -rw-r--r-- | arch/arm/mach-iop32x/em7210.c | 3 | ||||
| -rw-r--r-- | arch/arm/mach-iop32x/glantank.c | 3 | ||||
| -rw-r--r-- | arch/arm/mach-iop32x/iq31244.c | 3 | ||||
| -rw-r--r-- | arch/arm/mach-iop32x/iq80321.c | 3 | ||||
| -rw-r--r-- | arch/arm/mach-iop32x/n2100.c | 2 | ||||
| -rw-r--r-- | arch/arm/plat-iop/i2c.c | 24 |
7 files changed, 40 insertions, 0 deletions
diff --git a/arch/arm/include/asm/hardware/iop3xx.h b/arch/arm/include/asm/hardware/iop3xx.h index 64714c869f9f..3cb6f22f510b 100644 --- a/arch/arm/include/asm/hardware/iop3xx.h +++ b/arch/arm/include/asm/hardware/iop3xx.h @@ -302,6 +302,8 @@ extern struct platform_device iop3xx_dma_1_channel; extern struct platform_device iop3xx_aau_channel; extern struct platform_device iop3xx_i2c0_device; extern struct platform_device iop3xx_i2c1_device; +extern struct gpiod_lookup_table iop3xx_i2c0_gpio_lookup; +extern struct gpiod_lookup_table iop3xx_i2c1_gpio_lookup; #endif diff --git a/arch/arm/mach-iop32x/em7210.c b/arch/arm/mach-iop32x/em7210.c index 493de4fd8b2e..61a1e593f9ec 100644 --- a/arch/arm/mach-iop32x/em7210.c +++ b/arch/arm/mach-iop32x/em7210.c @@ -20,6 +20,7 @@ #include <linux/platform_device.h> #include <linux/i2c.h> #include <linux/gpio.h> +#include <linux/gpio/machine.h> #include <mach/hardware.h> #include <linux/io.h> #include <linux/irq.h> @@ -207,6 +208,8 @@ static void __init em7210_init_machine(void) { register_iop32x_gpio(); platform_device_register(&em7210_serial_device); + gpiod_add_lookup_table(&iop3xx_i2c0_gpio_lookup); + gpiod_add_lookup_table(&iop3xx_i2c1_gpio_lookup); platform_device_register(&iop3xx_i2c0_device); platform_device_register(&iop3xx_i2c1_device); platform_device_register(&em7210_flash_device); diff --git a/arch/arm/mach-iop32x/glantank.c b/arch/arm/mach-iop32x/glantank.c index 84cdb4587b34..5a45d616d9ac 100644 --- a/arch/arm/mach-iop32x/glantank.c +++ b/arch/arm/mach-iop32x/glantank.c @@ -21,6 +21,7 @@ #include <linux/i2c.h> #include <linux/platform_device.h> #include <linux/io.h> +#include <linux/gpio/machine.h> #include <mach/hardware.h> #include <asm/irq.h> #include <asm/mach/arch.h> @@ -185,6 +186,8 @@ static void glantank_power_off(void) static void __init glantank_init_machine(void) { register_iop32x_gpio(); + gpiod_add_lookup_table(&iop3xx_i2c0_gpio_lookup); + gpiod_add_lookup_table(&iop3xx_i2c1_gpio_lookup); platform_device_register(&iop3xx_i2c0_device); platform_device_register(&iop3xx_i2c1_device); platform_device_register(&glantank_flash_device); diff --git a/arch/arm/mach-iop32x/iq31244.c b/arch/arm/mach-iop32x/iq31244.c index b177e3900616..8755aa87e591 100644 --- a/arch/arm/mach-iop32x/iq31244.c +++ b/arch/arm/mach-iop32x/iq31244.c @@ -22,6 +22,7 @@ #include <linux/mtd/physmap.h> #include <linux/platform_device.h> #include <linux/io.h> +#include <linux/gpio/machine.h> #include <mach/hardware.h> #include <asm/cputype.h> #include <asm/irq.h> @@ -281,6 +282,8 @@ void ep80219_power_off(void) static void __init iq31244_init_machine(void) { register_iop32x_gpio(); + gpiod_add_lookup_table(&iop3xx_i2c0_gpio_lookup); + gpiod_add_lookup_table(&iop3xx_i2c1_gpio_lookup); platform_device_register(&iop3xx_i2c0_device); platform_device_register(&iop3xx_i2c1_device); platform_device_register(&iq31244_flash_device); diff --git a/arch/arm/mach-iop32x/iq80321.c b/arch/arm/mach-iop32x/iq80321.c index 815b9f070007..e12699d1c540 100644 --- a/arch/arm/mach-iop32x/iq80321.c +++ b/arch/arm/mach-iop32x/iq80321.c @@ -19,6 +19,7 @@ #include <linux/mtd/physmap.h> #include <linux/platform_device.h> #include <linux/io.h> +#include <linux/gpio/machine.h> #include <mach/hardware.h> #include <asm/irq.h> #include <asm/mach/arch.h> @@ -168,6 +169,8 @@ static struct platform_device iq80321_serial_device = { static void __init iq80321_init_machine(void) { register_iop32x_gpio(); + gpiod_add_lookup_table(&iop3xx_i2c0_gpio_lookup); + gpiod_add_lookup_table(&iop3xx_i2c1_gpio_lookup); platform_device_register(&iop3xx_i2c0_device); platform_device_register(&iop3xx_i2c1_device); platform_device_register(&iq80321_flash_device); diff --git a/arch/arm/mach-iop32x/n2100.c b/arch/arm/mach-iop32x/n2100.c index 1948180594f4..26d76b377e79 100644 --- a/arch/arm/mach-iop32x/n2100.c +++ b/arch/arm/mach-iop32x/n2100.c @@ -27,6 +27,7 @@ #include <linux/reboot.h> #include <linux/io.h> #include <linux/gpio.h> +#include <linux/gpio/machine.h> #include <mach/hardware.h> #include <asm/irq.h> #include <asm/mach/arch.h> @@ -341,6 +342,7 @@ device_initcall(n2100_request_gpios); static void __init n2100_init_machine(void) { register_iop32x_gpio(); + gpiod_add_lookup_table(&iop3xx_i2c0_gpio_lookup); platform_device_register(&iop3xx_i2c0_device); platform_device_register(&n2100_flash_device); platform_device_register(&n2100_serial_device); diff --git a/arch/arm/plat-iop/i2c.c b/arch/arm/plat-iop/i2c.c index 7a79213db3e1..dfbd7c332866 100644 --- a/arch/arm/plat-iop/i2c.c +++ b/arch/arm/plat-iop/i2c.c @@ -16,6 +16,7 @@ #include <linux/tty.h> #include <linux/serial_core.h> #include <linux/io.h> +#include <linux/gpio/machine.h> #include <asm/pgtable.h> #include <asm/page.h> #include <asm/mach/map.h> @@ -34,6 +35,29 @@ #define IRQ_IOP3XX_I2C_1 IRQ_IOP33X_I2C_1 #endif +/* + * Each of the I2C busses have corresponding GPIO lines, and the driver + * need to access these directly to drive the bus low at times. + */ + +struct gpiod_lookup_table iop3xx_i2c0_gpio_lookup = { + .dev_id = "IOP3xx-I2C.0", + .table = { + GPIO_LOOKUP("gpio-iop", 7, "scl", GPIO_ACTIVE_HIGH), + GPIO_LOOKUP("gpio-iop", 6, "sda", GPIO_ACTIVE_HIGH), + { } + }, +}; + +struct gpiod_lookup_table iop3xx_i2c1_gpio_lookup = { + .dev_id = "IOP3xx-I2C.1", + .table = { + GPIO_LOOKUP("gpio-iop", 5, "scl", GPIO_ACTIVE_HIGH), + GPIO_LOOKUP("gpio-iop", 4, "sda", GPIO_ACTIVE_HIGH), + { } + }, +}; + static struct resource iop3xx_i2c0_resources[] = { [0] = { .start = 0xfffff680, |