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Before reboot if the DCDC is disabled, the DCDC is still disabled after restart. We have an method to workaround: Use vsel pin to switch the voltage between value in FAN53555_VSEL0 and FAN53555_VSEL1. If VSEL pin is inactive, the voltage of DCDC are controlled by FAN53555_VSEL0, when we pull vsel pin to active, they would be controlled by FAN53555_VSEL1. In this case, we can set FAN53555_VSEL1 to disable dcdc, So we can make vsel pin to active to disable dcdc, VSEL pin is inactive to enable DCDC. Change-Id: I14c823ed11dc3369044ad2ed0b53a6027acbccd0 Signed-off-by: Elaine Zhang <zhangqing@rock-chips.com>
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.
See Documentation/00-INDEX for a list of what is contained in each file.
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.