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