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The LP55xx range of devices have an internal charge pump which can (automatically) increase the output voltage towards the LED's, boosting the output voltage to 4.5V. Implement this option from the devicetree. When the setting is not present it will operate in automatic mode as before. Tested on LP55231. Datasheet analysis shows that LP5521, LP5523 and LP8501 are identical in topology and are modified in the same way. Signed-off-by: Maarten Zanders <maarten.zanders@mind.be> Signed-off-by: Lee Jones <lee@kernel.org> Link: https://lore.kernel.org/r/20230421075305.37597-3-maarten.zanders@mind.be |
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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.