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1 | /* |
2 | * include/linux/gpio-fan.h |
3 | * |
4 | * Platform data structure for GPIO fan driver |
5 | * |
6 | * This file is licensed under the terms of the GNU General Public |
7 | * License version 2. This program is licensed "as is" without any |
8 | * warranty of any kind, whether express or implied. |
9 | */ |
10 | |
11 | #ifndef __LINUX_GPIO_FAN_H |
12 | #define __LINUX_GPIO_FAN_H |
13 | |
14 | struct gpio_fan_alarm { |
15 | unsigned gpio; |
16 | unsigned active_low; |
17 | }; |
18 | |
19 | struct gpio_fan_speed { |
20 | int rpm; |
21 | int ctrl_val; |
22 | }; |
23 | |
24 | struct gpio_fan_platform_data { |
25 | int num_ctrl; |
26 | unsigned *ctrl; /* fan control GPIOs. */ |
27 | struct gpio_fan_alarm *alarm; /* fan alarm GPIO. */ |
28 | /* |
29 | * Speed conversion array: rpm from/to GPIO bit field. |
30 | * This array _must_ be sorted in ascending rpm order. |
31 | */ |
32 | int num_speed; |
33 | struct gpio_fan_speed *speed; |
34 | }; |
35 | |
36 | #endif /* __LINUX_GPIO_FAN_H */ |
37 |
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