1/* 2 * Copyright (C) 2007 Atmel Corporation 3 * 4 * Driver for the AT32AP700X PS/2 controller (PSIF). 5 * 6 * This program is free software; you can redistribute it and/or modify it 7 * under the terms of the GNU General Public License version 2 as published 8 * by the Free Software Foundation. 9 */ 10 11#ifndef __INCLUDE_ATMEL_PWM_BL_H 12#define __INCLUDE_ATMEL_PWM_BL_H 13 14/** 15 * struct atmel_pwm_bl_platform_data 16 * @pwm_channel: which PWM channel in the PWM module to use. 17 * @pwm_frequency: PWM frequency to generate, the driver will try to be as 18 * close as the prescaler allows. 19 * @pwm_compare_max: value to use in the PWM channel compare register. 20 * @pwm_duty_max: maximum duty cycle value, must be less than or equal to 21 * pwm_compare_max. 22 * @pwm_duty_min: minimum duty cycle value, must be less than pwm_duty_max. 23 * @pwm_active_low: set to one if the low part of the PWM signal increases the 24 * brightness of the backlight. 25 * @gpio_on: GPIO line to control the backlight on/off, set to -1 if not used. 26 * @on_active_low: set to one if the on/off signal is on when GPIO is low. 27 * 28 * This struct must be added to the platform device in the board code. It is 29 * used by the atmel-pwm-bl driver to setup the GPIO to control on/off and the 30 * PWM device. 31 */ 32struct atmel_pwm_bl_platform_data { 33 unsigned int pwm_channel; 34 unsigned int pwm_frequency; 35 unsigned int pwm_compare_max; 36 unsigned int pwm_duty_max; 37 unsigned int pwm_duty_min; 38 unsigned int pwm_active_low; 39 int gpio_on; 40 unsigned int on_active_low; 41}; 42 43#endif /* __INCLUDE_ATMEL_PWM_BL_H */ 44