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| Filename | Latest commit message | Latest commit date |
|---|---|---|
cfeefa79dcThis converts the Cadence SPI master driver to use GPIO descriptors for chip select handling. The Cadence driver was allocating a state container just to hold the requested GPIO line and contained lots of polarity inversion code. As this is all handled by gpiolib and a simple devm_* request in the core, and as the driver is fully device tree only, most of this code chunk goes away in favour of central handling. The setup/cleanup callbacks goes away. This driver does NOT drive the CS line by setting the value of the GPIO so it relies on the SPI core to do this, which should work just fine with the descriptors. Cc: Wei Yongjun <weiyongjun1@huawei.com> Cc: Janek Kotas <jank@cadence.com> Cc: Linuxarm <linuxarm@huawei.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Mark Brown <broonie@kernel.org> |
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| README | ||
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.