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There are three pins that can be used for reset gpios. As mentioned in the application note, there are two possible way of wiring pcie reset: * connect gpio19 to all pcie reset pins * connect gpio19 to pcie0 reset and pick two other gpios for pcie1 and pcie2 gpio7 and gpio8 may not be used as pcie reset and are vendor specific. Hence, maintain common mt7621.dtsi with only gpio19 which is common and make an overlay for gnubee board which uses all gpio's as resets for pcie. After this changes release gpios in driver code is not needed anymore. Signed-off-by: Sergio Paracuellos <sergio.paracuellos@gmail.com> Link: https://lore.kernel.org/r/20200321072650.7784-2-sergio.paracuellos@gmail.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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.