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88c5a235e8
The min/max value of vdd_log is decide by pwm IO voltage and its resistors, the rk3399-firefly board's pwm regulator circuit is designed for IO voltage at 1.8V, while the board actually use 3.0V for IO, which at last lead to the min-microvolt to '430mV' instead of '800mV'. Signed-off-by: Kever Yang <kever.yang@rock-chips.com> Link: https://lore.kernel.org/r/20191111005158.25070-1-kever.yang@rock-chips.com 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.