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17a14a4451
With this patch, the pinctrl driver will support output-high/ -low pinconf, which passed from dts iomux nodes. So the pinctrl module needs the gpio_chip which registered by gpio module. This patch makes the gpio driver use the rockchip_pin_bank from pinctrl, after that, the pinctrl can call the gpiolib operations, include output. Also do iomux check before call gpiolib operations, make sure that the pin hasn't been used as other functions. Change-Id: Iaba6f1ade8494235586d5e5ce52d6d497e072bc4 Signed-off-by: Jianqun Xu <jay.xu@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.