151f1b664f
It is simpler for drivers to provide a ->device_reset() callback irrespective of whether the GPIO, or firmware interface necessary to do the reset, is discovered during probe. Change ->device_reset() to return an error code. Drivers that provide the callback, but do not do the reset operation should return -EOPNOTSUPP. Link: https://lore.kernel.org/r/20201103141403.2142-3-adrian.hunter@intel.com Reviewed-by: Asutosh Das <asutoshd@codeaurora.org> Reviewed-by: Stanley Chu <stanley.chu@mediatek.com> Reviewed-by: Bean huo <beanhuo@micron.com> Reviewed-by: Can Guo <cang@codeaurora.org> Signed-off-by: Adrian Hunter <adrian.hunter@intel.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.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.
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.