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: /proc/self/root/usr/lib/modules/5.15.0-1082-aws/build/include/linux/mfd/pcf50633/ [ drwxr-xr-x ]
name : backlight.h /* SPDX-License-Identifier: GPL-2.0-or-later */ /* * Copyright (C) 2009-2010, Lars-Peter Clausen <lars@metafoo.de> * PCF50633 backlight device driver */ #ifndef __LINUX_MFD_PCF50633_BACKLIGHT #define __LINUX_MFD_PCF50633_BACKLIGHT /* * @default_brightness: Backlight brightness is initialized to this value * * Brightness to be used after the driver has been probed. * Valid range 0-63. * * @default_brightness_limit: The actual brightness is limited by this value * * Brightness limit to be used after the driver has been probed. This is useful * when it is not known how much power is available for the backlight during * probe. * Valid range 0-63. Can be changed later with pcf50633_bl_set_brightness_limit. * * @ramp_time: Display ramp time when changing brightness * * 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