0001 # SPDX-License-Identifier: GPL-2.0
0002 config FB_OLPC_DCON
0003 tristate "One Laptop Per Child Display CONtroller support"
0004 depends on OLPC && FB && BROKEN
0005 depends on I2C
0006 depends on GPIO_CS5535 && ACPI
0007 select BACKLIGHT_CLASS_DEVICE
0008 help
0009 In order to support very low power operation, the XO laptop uses a
0010 secondary Display CONtroller, or DCON. This secondary controller
0011 is present in the video pipeline between the primary display
0012 controller (integrate into the processor or chipset) and the LCD
0013 panel. It allows the main processor/display controller to be
0014 completely powered off while still retaining an image on the display.
0015 This controller is only available on OLPC platforms. Unless you have
0016 one of these platforms, you will want to say 'N'.
0017
