gpio-fan.h

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/*
 * include/linux/gpio-fan.h
 *
 * Platform data structure for GPIO fan driver
 *
 * This file is licensed under the terms of the GNU General Public
 * License version 2.  This program is licensed "as is" without any
 * warranty of any kind, whether express or implied.
 */

#ifndef __LINUX_GPIO_FAN_H
#define __LINUX_GPIO_FAN_H

struct gpio_fan_alarm {
    unsigned    gpio;
    unsigned    active_low;
};

struct gpio_fan_speed {
    int rpm;
    int ctrl_val;
};

struct gpio_fan_platform_data {
    int         num_ctrl;
    unsigned        *ctrl;  /* fan control GPIOs. */
    struct gpio_fan_alarm   *alarm; /* fan alarm GPIO. */
    /*
     * Speed conversion array: rpm from/to GPIO bit field.
     * This array _must_ be sorted in ascending rpm order.
     */
    int         num_speed;
    struct gpio_fan_speed   *speed;
};

#endif /* __LINUX_GPIO_FAN_H */