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2abc17a938
regmap will sync a range of registers, here use the correct range to make sure the sync do not touch other unexpected registers. Find on pca9557pw on imx8qxp/dxl evk board, this device support 8 pin, so only need one register(8 bits) to cover all the 8 pins's property setting. But when sync the output, we find it actually update two registers, output register and the following register. Fixes:b765743005("gpio: pca953x: Restore registers after suspend/resume cycle") Fixes:ec82d1eba3("gpio: pca953x: Zap ad-hoc reg_output cache") Fixes:0f25fda840("gpio: pca953x: Zap ad-hoc reg_direction cache") Signed-off-by: Haibo Chen <haibo.chen@nxp.com> Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com> Signed-off-by: Bartosz Golaszewski <brgl@bgdev.pl>
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.