| config FB_OLPC_DCON |
| tristate "One Laptop Per Child Display CONtroller support" |
| depends on OLPC && FB |
| depends on I2C |
| depends on (GPIO_CS5535 || GPIO_CS5535=n) |
| select BACKLIGHT_CLASS_DEVICE |
| ---help--- |
| In order to support very low power operation, the XO laptop uses a |
| secondary Display CONtroller, or DCON. This secondary controller |
| is present in the video pipeline between the primary display |
| controller (integrate into the processor or chipset) and the LCD |
| panel. It allows the main processor/display controller to be |
| completely powered off while still retaining an image on the display. |
| This controller is only available on OLPC platforms. Unless you have |
| one of these platforms, you will want to say 'N'. |
| |
| config FB_OLPC_DCON_1 |
| bool "OLPC XO-1 DCON support" |
| depends on FB_OLPC_DCON && GPIO_CS5535 |
| default y |
| ---help--- |
| Enable support for the DCON in XO-1 model laptops. The kernel |
| communicates with the DCON using model-specific code. If you |
| have an XO-1 (or if you're unsure what model you have), you should |
| say 'Y'. |
| |
| config FB_OLPC_DCON_1_5 |
| bool "OLPC XO-1.5 DCON support" |
| depends on FB_OLPC_DCON && ACPI |
| default y |
| ---help--- |
| Enable support for the DCON in XO-1.5 model laptops. The kernel |
| communicates with the DCON using model-specific code. If you |
| have an XO-1.5 (or if you're unsure what model you have), you |
| should say 'Y'. |