| Andres Salomon | eecb3e4 | 2010-09-24 19:13:42 -0700 | [diff] [blame] | 1 | config FB_OLPC_DCON |
| 2 | tristate "One Laptop Per Child Display CONtroller support" |
| Randy Dunlap | 6a3a81e | 2011-02-21 14:39:08 -0800 | [diff] [blame] | 3 | depends on OLPC && FB |
| Randy Dunlap | d6ae99d | 2013-10-13 12:30:00 -0700 | [diff] [blame] | 4 | depends on I2C |
| 5 | depends on (GPIO_CS5535 || GPIO_CS5535=n) |
| Randy Dunlap | 91e623d | 2011-05-25 19:17:06 -0700 | [diff] [blame] | 6 | select BACKLIGHT_CLASS_DEVICE |
| Andres Salomon | eecb3e4 | 2010-09-24 19:13:42 -0700 | [diff] [blame] | 7 | ---help--- |
| Jens Frederich | 7df6896 | 2013-07-30 20:11:34 +0200 | [diff] [blame] | 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'. |
| Andres Salomon | 097cd83 | 2011-02-10 17:53:24 -0800 | [diff] [blame] | 16 | |
| 17 | config FB_OLPC_DCON_1 |
| 18 | bool "OLPC XO-1 DCON support" |
| Sascha Silbe | bed4ab7 | 2011-04-03 12:05:36 +0200 | [diff] [blame] | 19 | depends on FB_OLPC_DCON && GPIO_CS5535 |
| Andres Salomon | 097cd83 | 2011-02-10 17:53:24 -0800 | [diff] [blame] | 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 | |
| 27 | config FB_OLPC_DCON_1_5 |
| 28 | bool "OLPC XO-1.5 DCON support" |
| Randy Dunlap | 6a3a81e | 2011-02-21 14:39:08 -0800 | [diff] [blame] | 29 | depends on FB_OLPC_DCON && ACPI |
| Andres Salomon | 097cd83 | 2011-02-10 17:53:24 -0800 | [diff] [blame] | 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'. |