projects / deliverable / linux.git / blame
| Commit | Line | Data |
|---|---|---|
| 63796b74 AR |
1 | #include <linux/module.h> |
| 2 | #include <linux/init.h> | |
| 3 | #include <linux/i2c.h> | |
| 4 | #include <linux/i2c-algo-bit.h> | |
| 5 | #include <linux/i2c-gpio.h> | |
| 63796b74 | 6 | #include <linux/platform_device.h> |
| 0f332861 | 7 | #include <plat/gpio-nomadik.h> |
| 661d414c | 8 | #include <plat/pincfg.h> |
| 63796b74 AR |
9 | |
| 10 | /* | |
| 11 | * There are two busses in the 8815NHK. | |
| 12 | * They could, in theory, be driven by the hardware component, but we | |
| 13 | * use bit-bang through GPIO by now, to keep things simple | |
| 14 | */ | |
| 15 | ||
| 661d414c | 16 | /* I2C0 connected to the STw4811 power management chip */ |
| 63796b74 AR |
17 | static struct i2c_gpio_platform_data nhk8815_i2c_data0 = { |
| 18 | /* keep defaults for timeouts; pins are push-pull bidirectional */ | |
| 19 | .scl_pin = 62, | |
| 20 | .sda_pin = 63, | |
| 21 | }; | |
| 22 | ||
| 661d414c | 23 | /* I2C1 connected to various sensors */ |
| 63796b74 AR |
24 | static struct i2c_gpio_platform_data nhk8815_i2c_data1 = { |
| 25 | /* keep defaults for timeouts; pins are push-pull bidirectional */ | |
| 26 | .scl_pin = 53, | |
| 27 | .sda_pin = 54, | |
| 28 | }; | |
| 29 | ||
| 661d414c LW |
30 | /* I2C2 connected to the USB portions of the STw4811 only */ |
| 31 | static struct i2c_gpio_platform_data nhk8815_i2c_data2 = { | |
| 32 | /* keep defaults for timeouts; pins are push-pull bidirectional */ | |
| 33 | .scl_pin = 73, | |
| 34 | .sda_pin = 74, | |
| 35 | }; | |
| 36 | ||
| 63796b74 AR |
37 | static struct platform_device nhk8815_i2c_dev0 = { |
| 38 | .name = "i2c-gpio", | |
| 39 | .id = 0, | |
| 40 | .dev = { | |
| 41 | .platform_data = &nhk8815_i2c_data0, | |
| 42 | }, | |
| 43 | }; | |
| 661d414c | 44 | |
| 63796b74 AR |
45 | static struct platform_device nhk8815_i2c_dev1 = { |
| 46 | .name = "i2c-gpio", | |
| 47 | .id = 1, | |
| 48 | .dev = { | |
| 49 | .platform_data = &nhk8815_i2c_data1, | |
| 50 | }, | |
| 51 | }; | |
| 52 | ||
| 661d414c LW |
53 | static struct platform_device nhk8815_i2c_dev2 = { |
| 54 | .name = "i2c-gpio", | |
| 55 | .id = 2, | |
| 56 | .dev = { | |
| 57 | .platform_data = &nhk8815_i2c_data2, | |
| 58 | }, | |
| 59 | }; | |
| 60 | ||
| 61 | static pin_cfg_t cpu8815_pins_i2c[] = { | |
| 62 | PIN_CFG_INPUT(62, GPIO, PULLUP), | |
| 63 | PIN_CFG_INPUT(63, GPIO, PULLUP), | |
| 64 | PIN_CFG_INPUT(53, GPIO, PULLUP), | |
| 65 | PIN_CFG_INPUT(54, GPIO, PULLUP), | |
| 66 | PIN_CFG_INPUT(73, GPIO, PULLUP), | |
| 67 | PIN_CFG_INPUT(74, GPIO, PULLUP), | |
| 68 | }; | |
| 69 | ||
| 63796b74 AR |
70 | static int __init nhk8815_i2c_init(void) |
| 71 | { | |
| 661d414c | 72 | nmk_config_pins(cpu8815_pins_i2c, ARRAY_SIZE(cpu8815_pins_i2c)); |
| 63796b74 | 73 | platform_device_register(&nhk8815_i2c_dev0); |
| 63796b74 | 74 | platform_device_register(&nhk8815_i2c_dev1); |
| 661d414c | 75 | platform_device_register(&nhk8815_i2c_dev2); |
| 63796b74 AR |
76 | |
| 77 | return 0; | |
| 78 | } | |
| 79 | ||
| 80 | static void __exit nhk8815_i2c_exit(void) | |
| 81 | { | |
| 82 | platform_device_unregister(&nhk8815_i2c_dev0); | |
| 83 | platform_device_unregister(&nhk8815_i2c_dev1); | |
| 661d414c | 84 | platform_device_unregister(&nhk8815_i2c_dev2); |
| 63796b74 AR |
85 | return; |
| 86 | } | |
| 87 | ||
| 88 | module_init(nhk8815_i2c_init); | |
| 89 | module_exit(nhk8815_i2c_exit); |