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