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de0952f267
The commiteecb3e4e5d("staging: olpc_dcon: add OLPC display controller (DCON) support") added this driver in 2010, and has been in staging since then. It was marked as broken at some point because it didn't even build but that got removed once the build issues were addressed. But it seems that the work to move this driver out of staging has stalled, the last non-trivial change to fix one of the items mentioned in its todo file was commite40219d5e4("staging: olpc_dcon: allow simultaneous XO-1 and XO-1.5 support") in 2019. And even if work to destage the driver is resumed, the fbdev subsystem has been deprecated for a long time and instead it should be ported to DRM. Now this driver is preventing to land a kernel wide change, that makes the num_registered_fb symbol to be private to the fbmem.c file. So let's just mark the driver as broken. Someone can then work on making it not depend on the num_registered_fb symbol, allowing to drop the broken dependency again. Suggested-by: Sam Ravnborg <sam@ravnborg.org> Acked-by: Thomas Zimmermann <tzimmermann@suse.de> Signed-off-by: Javier Martinez Canillas <javierm@redhat.com> Link: https://lore.kernel.org/r/20220609223424.907174-1-javierm@redhat.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
17 lines
769 B
Text
17 lines
769 B
Text
# SPDX-License-Identifier: GPL-2.0
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config FB_OLPC_DCON
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tristate "One Laptop Per Child Display CONtroller support"
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depends on OLPC && FB && BROKEN
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depends on I2C
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depends on GPIO_CS5535 && ACPI
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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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