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c7995bcb36
When specifying weim child devices, there is a risk that more than
one timing setting is specified for the same chip select.
The driver cannot support such a configuration.
In case of conflict, this patch will print a warning to the log,
and will ignore the child node in question.
In this example, node acme@1 will be ignored, as it tries to modify
timing settings for CS0:
&weim {
acme@0 {
compatible = "acme,whatever";
reg = <0 0 0x100>;
fsl,weim-cs-timing = <something>;
};
acme@1 {
compatible = "acme,whatnot";
reg = <0 0x500 0x100>;
fsl,weim-cs-timing = <something else>;
};
};
However in this example, the driver will be happy:
&weim {
acme@0 {
compatible = "acme,whatever";
reg = <0 0 0x100>;
fsl,weim-cs-timing = <something>;
};
acme@1 {
compatible = "acme,whatnot";
reg = <0 0x500 0x100>;
fsl,weim-cs-timing = <something>;
};
};
Signed-off-by: Sven Van Asbroeck <TheSven73@googlemail.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
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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.