diff options
Diffstat (limited to 'arch/arm/mach-nomadik/i2c-8815nhk.c')
| -rw-r--r-- | arch/arm/mach-nomadik/i2c-8815nhk.c | 38 |
1 files changed, 31 insertions, 7 deletions
diff --git a/arch/arm/mach-nomadik/i2c-8815nhk.c b/arch/arm/mach-nomadik/i2c-8815nhk.c index 0fc2f6f1cc9..6d14454d460 100644 --- a/arch/arm/mach-nomadik/i2c-8815nhk.c +++ b/arch/arm/mach-nomadik/i2c-8815nhk.c @@ -5,6 +5,7 @@ #include <linux/i2c-gpio.h> #include <linux/platform_device.h> #include <plat/gpio-nomadik.h> +#include <plat/pincfg.h> /* * There are two busses in the 8815NHK. @@ -12,19 +13,27 @@ * use bit-bang through GPIO by now, to keep things simple */ +/* I2C0 connected to the STw4811 power management chip */ static struct i2c_gpio_platform_data nhk8815_i2c_data0 = { /* keep defaults for timeouts; pins are push-pull bidirectional */ .scl_pin = 62, .sda_pin = 63, }; +/* I2C1 connected to various sensors */ static struct i2c_gpio_platform_data nhk8815_i2c_data1 = { /* keep defaults for timeouts; pins are push-pull bidirectional */ .scl_pin = 53, .sda_pin = 54, }; -/* first bus: GPIO XX and YY */ +/* I2C2 connected to the USB portions of the STw4811 only */ +static struct i2c_gpio_platform_data nhk8815_i2c_data2 = { + /* keep defaults for timeouts; pins are push-pull bidirectional */ + .scl_pin = 73, + .sda_pin = 74, +}; + static struct platform_device nhk8815_i2c_dev0 = { .name = "i2c-gpio", .id = 0, @@ -32,7 +41,7 @@ static struct platform_device nhk8815_i2c_dev0 = { .platform_data = &nhk8815_i2c_data0, }, }; -/* second bus: GPIO XX and YY */ + static struct platform_device nhk8815_i2c_dev1 = { .name = "i2c-gpio", .id = 1, @@ -41,15 +50,29 @@ static struct platform_device nhk8815_i2c_dev1 = { }, }; +static struct platform_device nhk8815_i2c_dev2 = { + .name = "i2c-gpio", + .id = 2, + .dev = { + .platform_data = &nhk8815_i2c_data2, + }, +}; + +static pin_cfg_t cpu8815_pins_i2c[] = { + PIN_CFG_INPUT(62, GPIO, PULLUP), + PIN_CFG_INPUT(63, GPIO, PULLUP), + PIN_CFG_INPUT(53, GPIO, PULLUP), + PIN_CFG_INPUT(54, GPIO, PULLUP), + PIN_CFG_INPUT(73, GPIO, PULLUP), + PIN_CFG_INPUT(74, GPIO, PULLUP), +}; + static int __init nhk8815_i2c_init(void) { - nmk_gpio_set_mode(nhk8815_i2c_data0.scl_pin, NMK_GPIO_ALT_GPIO); - nmk_gpio_set_mode(nhk8815_i2c_data0.sda_pin, NMK_GPIO_ALT_GPIO); + nmk_config_pins(cpu8815_pins_i2c, ARRAY_SIZE(cpu8815_pins_i2c)); platform_device_register(&nhk8815_i2c_dev0); - - nmk_gpio_set_mode(nhk8815_i2c_data1.scl_pin, NMK_GPIO_ALT_GPIO); - nmk_gpio_set_mode(nhk8815_i2c_data1.sda_pin, NMK_GPIO_ALT_GPIO); platform_device_register(&nhk8815_i2c_dev1); + platform_device_register(&nhk8815_i2c_dev2); return 0; } @@ -58,6 +81,7 @@ static void __exit nhk8815_i2c_exit(void) { platform_device_unregister(&nhk8815_i2c_dev0); platform_device_unregister(&nhk8815_i2c_dev1); + platform_device_unregister(&nhk8815_i2c_dev2); return; } |