Commit | Line | Data |
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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> | |
6 | #include <linux/gpio.h> | |
7 | #include <linux/platform_device.h> | |
8 | ||
9 | /* | |
10 | * There are two busses in the 8815NHK. | |
11 | * They could, in theory, be driven by the hardware component, but we | |
12 | * use bit-bang through GPIO by now, to keep things simple | |
13 | */ | |
14 | ||
15 | static struct i2c_gpio_platform_data nhk8815_i2c_data0 = { | |
16 | /* keep defaults for timeouts; pins are push-pull bidirectional */ | |
17 | .scl_pin = 62, | |
18 | .sda_pin = 63, | |
19 | }; | |
20 | ||
21 | static struct i2c_gpio_platform_data nhk8815_i2c_data1 = { | |
22 | /* keep defaults for timeouts; pins are push-pull bidirectional */ | |
23 | .scl_pin = 53, | |
24 | .sda_pin = 54, | |
25 | }; | |
26 | ||
27 | /* first bus: GPIO XX and YY */ | |
28 | static struct platform_device nhk8815_i2c_dev0 = { | |
29 | .name = "i2c-gpio", | |
30 | .id = 0, | |
31 | .dev = { | |
32 | .platform_data = &nhk8815_i2c_data0, | |
33 | }, | |
34 | }; | |
35 | /* second bus: GPIO XX and YY */ | |
36 | static struct platform_device nhk8815_i2c_dev1 = { | |
37 | .name = "i2c-gpio", | |
38 | .id = 1, | |
39 | .dev = { | |
40 | .platform_data = &nhk8815_i2c_data1, | |
41 | }, | |
42 | }; | |
43 | ||
44 | static int __init nhk8815_i2c_init(void) | |
45 | { | |
46 | nmk_gpio_set_mode(nhk8815_i2c_data0.scl_pin, NMK_GPIO_ALT_GPIO); | |
47 | nmk_gpio_set_mode(nhk8815_i2c_data0.sda_pin, NMK_GPIO_ALT_GPIO); | |
48 | platform_device_register(&nhk8815_i2c_dev0); | |
49 | ||
50 | nmk_gpio_set_mode(nhk8815_i2c_data1.scl_pin, NMK_GPIO_ALT_GPIO); | |
51 | nmk_gpio_set_mode(nhk8815_i2c_data1.sda_pin, NMK_GPIO_ALT_GPIO); | |
52 | platform_device_register(&nhk8815_i2c_dev1); | |
53 | ||
54 | return 0; | |
55 | } | |
56 | ||
57 | static void __exit nhk8815_i2c_exit(void) | |
58 | { | |
59 | platform_device_unregister(&nhk8815_i2c_dev0); | |
60 | platform_device_unregister(&nhk8815_i2c_dev1); | |
61 | return; | |
62 | } | |
63 | ||
64 | module_init(nhk8815_i2c_init); | |
65 | module_exit(nhk8815_i2c_exit); |