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/*
* Copyright (C) 2009, Lars-Peter Clausen <lars@metafoo.de>
* PCF50633 backlight device driver
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by the
* Free Software Foundation; either version 2 of the License, or (at your
* option) any later version.
*
* You should have received a copy of the GNU General Public License along
* with this program; if not, write to the Free Software Foundation, Inc.,
* 675 Mass Ave, Cambridge, MA 02139, USA.
*
*/
#ifndef __LINUX_MFD_PCF50633_BACKLIGHT
#define __LINUX_MFD_PCF50633_BACKLIGHT
/*
* @default_brightness: Brightness to be used after the driver has been
probed. Valid range 0-63.
* @default_brightness_limit: Brightness limit to be used after the driver has
* been probed. This is usfull when it is not known
* how much power is available for the backlight
* during probe. Valid range 0-63
* @ramp_time: When changing the backlights brightness the change
* is not instant, instead it fades smooth from one
* state to another. This value specifies how long the
* fade should take. The lower the value the higher
* the fade time. Valid range 0-255
*/
struct pcf50633_bl_platform_data {
unsigned int default_brightness;
unsigned int default_brightness_limit;
uint8_t ramp_time;
};
struct pcf50633;
int pcf50633_bl_set_brightness_limit(struct pcf50633 *pcf, unsigned int limit);
#endif
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