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02a4675360
Since the initial commit of this driver the I2C bus speed has been reconfigured for every single transfer. This is despite the fact that we never change the speed and it is never "lost" by the chip. Upon investigation we find that what was really happening was that the setting of the bus speed had the side effect of cancelling a previous failed command if there was one, thereby freeing the bus. This is the part that was actually required to keep the bus operational in the face of failed commands. Instead of always setting the speed, we now correctly cancel any failed commands as they are detected. This means we can just set the bus speed at probe time and remove the previous speed sets on each transfer. This has the effect of improving performance and reducing the number of commands required to complete transfers. Signed-off-by: Hamish Martin <hamish.martin@alliedtelesis.co.nz> Signed-off-by: Jiri Kosina <jkosina@suse.cz> |
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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.