![Lubomir Rintel](/assets/img/avatar_default.png)
WARNING: unmet direct dependencies detected for BACKLIGHT_CLASS_DEVICE Depends on [n]: HAS_IOMEM [=y] && BACKLIGHT_LCD_SUPPORT [=n] Selected by [y]: - FB_OLPC_DCON [=y] && STAGING [=y] && X86 [=y] && OLPC [=y] && FB [=y] && I2C [=y] && (GPIO_CS5535 [=n] || GPIO_CS5535 [=n]=n) Signed-off-by: Lubomir Rintel <lkundrak@v3.sk> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
37 lines
1.4 KiB
Plaintext
37 lines
1.4 KiB
Plaintext
config FB_OLPC_DCON
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tristate "One Laptop Per Child Display CONtroller support"
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depends on OLPC && FB
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depends on I2C
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depends on BACKLIGHT_LCD_SUPPORT
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depends on (GPIO_CS5535 || GPIO_CS5535=n)
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select BACKLIGHT_CLASS_DEVICE
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help
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In order to support very low power operation, the XO laptop uses a
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secondary Display CONtroller, or DCON. This secondary controller
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is present in the video pipeline between the primary display
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controller (integrate into the processor or chipset) and the LCD
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panel. It allows the main processor/display controller to be
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completely powered off while still retaining an image on the display.
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This controller is only available on OLPC platforms. Unless you have
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one of these platforms, you will want to say 'N'.
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config FB_OLPC_DCON_1
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bool "OLPC XO-1 DCON support"
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depends on FB_OLPC_DCON && GPIO_CS5535
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default y
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help
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Enable support for the DCON in XO-1 model laptops. The kernel
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communicates with the DCON using model-specific code. If you
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have an XO-1 (or if you're unsure what model you have), you should
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say 'Y'.
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config FB_OLPC_DCON_1_5
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bool "OLPC XO-1.5 DCON support"
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depends on FB_OLPC_DCON && ACPI
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default y
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help
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Enable support for the DCON in XO-1.5 model laptops. The kernel
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communicates with the DCON using model-specific code. If you
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have an XO-1.5 (or if you're unsure what model you have), you
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should say 'Y'.
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