drivers/staging/olpc_dcon/Kconfig

   1 # SPDX-License-Identifier: GPL-2.0
   2 config FB_OLPC_DCON
   3         tristate "One Laptop Per Child Display CONtroller support"
   4         depends on OLPC && FB
   5         depends on I2C
   6         depends on BACKLIGHT_LCD_SUPPORT
   7         depends on (GPIO_CS5535 || GPIO_CS5535=n)
   8         select BACKLIGHT_CLASS_DEVICE
   9         help
  10           In order to support very low power operation, the XO laptop uses a
  11           secondary Display CONtroller, or DCON.  This secondary controller
  12           is present in the video pipeline between the primary display
  13           controller (integrate into the processor or chipset) and the LCD
  14           panel.  It allows the main processor/display controller to be
  15           completely powered off while still retaining an image on the display.
  16           This controller is only available on OLPC platforms.  Unless you have
  17           one of these platforms, you will want to say 'N'.
  18
  19 config FB_OLPC_DCON_1
  20         bool "OLPC XO-1 DCON support"
  21         depends on FB_OLPC_DCON && GPIO_CS5535
  22         default y
  23         help
  24           Enable support for the DCON in XO-1 model laptops.  The kernel
  25           communicates with the DCON using model-specific code.  If you
  26           have an XO-1 (or if you're unsure what model you have), you should
  27           say 'Y'.
  28
  29 config FB_OLPC_DCON_1_5
  30         bool "OLPC XO-1.5 DCON support"
  31         depends on FB_OLPC_DCON && ACPI
  32         default y
  33         help
  34           Enable support for the DCON in XO-1.5 model laptops.  The kernel
  35           communicates with the DCON using model-specific code.  If you
  36           have an XO-1.5 (or if you're unsure what model you have), you
  37           should say 'Y'.