1config FB_OLPC_DCON 2 tristate "One Laptop Per Child Display CONtroller support" 3 depends on OLPC && FB 4 depends on I2C 5 depends on (GPIO_CS5535 || GPIO_CS5535=n) 6 select BACKLIGHT_CLASS_DEVICE 7 ---help--- 8 In order to support very low power operation, the XO laptop uses a 9 secondary Display CONtroller, or DCON. This secondary controller 10 is present in the video pipeline between the primary display 11 controller (integrate into the processor or chipset) and the LCD 12 panel. It allows the main processor/display controller to be 13 completely powered off while still retaining an image on the display. 14 This controller is only available on OLPC platforms. Unless you have 15 one of these platforms, you will want to say 'N'. 16 17config FB_OLPC_DCON_1 18 bool "OLPC XO-1 DCON support" 19 depends on FB_OLPC_DCON && GPIO_CS5535 20 default y 21 ---help--- 22 Enable support for the DCON in XO-1 model laptops. The kernel 23 communicates with the DCON using model-specific code. If you 24 have an XO-1 (or if you're unsure what model you have), you should 25 say 'Y'. 26 27config FB_OLPC_DCON_1_5 28 bool "OLPC XO-1.5 DCON support" 29 depends on FB_OLPC_DCON && ACPI 30 default y 31 ---help--- 32 Enable support for the DCON in XO-1.5 model laptops. The kernel 33 communicates with the DCON using model-specific code. If you 34 have an XO-1.5 (or if you're unsure what model you have), you 35 should say 'Y'. 36