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2513fa5c25d42f55ca5f0f0ab247af7c9fbfa3b1
The CDN DP needs a PHY and a extcon to work correctly. But no extcon is provided by the device-tree, which leads to an error: cdn-dp fec00000.dp: [drm:cdn_dp_probe [rockchipdrm]] *ERROR* missing extcon or phy cdn-dp: probe of fec00000.dp failed with error -22 Disable the CDN DP to make graphic work on the Pinebook Pro. Reported-by: Guillaume Gardet <guillaume.gardet@arm.com> Signed-off-by: Matthias Brugger <mbrugger@suse.com> Link: https://lore.kernel.org/r/20210715164101.11486-1-matthias.bgg@kernel.org Signed-off-by: Heiko Stuebner <heiko@sntech.de>
Linux kernel
============
There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.
In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``. The formatted documentation can also be read online at:
https://www.kernel.org/doc/html/latest/
There are various text files in the Documentation/ subdirectory,
several of them using the Restructured Text markup notation.
Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.
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