diff options
Diffstat (limited to 'kernel/include/linux/gpio-fan.h')
| -rw-r--r-- | kernel/include/linux/gpio-fan.h | 36 |
1 files changed, 36 insertions, 0 deletions
diff --git a/kernel/include/linux/gpio-fan.h b/kernel/include/linux/gpio-fan.h new file mode 100644 index 000000000..096659169 --- /dev/null +++ b/kernel/include/linux/gpio-fan.h @@ -0,0 +1,36 @@ +/* + * 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 */ |