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[ Upstream commitc0dadc0e47] RK3568 SoCs have 5 gpio controllers, each gpio has 32 pins. GPIO supports set iomux, pull, drive strength and schmitt. Signed-off-by: Jianqun Xu <jay.xu@rock-chips.com> Link: https://lore.kernel.org/r/20210319081441.368358-1-jay.xu@rock-chips.com Signed-off-by: Linus Walleij <linus.walleij@linaro.org> Stable-dep-of:c818ae563b("pinctrl: rockchip: Fix refcount leak in rockchip_pinctrl_parse_groups") Signed-off-by: Sasha Levin <sashal@kernel.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.