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Krzysztof Kozlowski
99e6eaab4c
The FIMC IS camera must access the PMU (Power Management Unit) IO memory
to control camera power. This was achieved by duplicating the PMU node
as its child like:
soc@0 {
system-controller@10020000 { ... }; // Real PMU
camera@11800000 {
fimc-is@12000000 {
// FIMC IS camera node
pmu@10020000 {
reg = <0x10020000 0x3000>; // Fake PMU node
};
};
};
};
This is not a correct representation of the hardware. Mapping the PMU
(Power Management Unit) IO memory should be via syscon-like phandle
(samsung,pmu-syscon, already used for other drivers), not by duplicating
"pmu" Devicetree node inside the FIMC IS.
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
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.