| Hans-Christian Egtvedt | 3e07405 | 2008-07-23 21:31:48 -0700 | [diff] [blame] | 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 | */ |
| 32 | struct 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 */ |