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A new API, rproc_set_firmware() is added to allow the remoteproc platform drivers and remoteproc client drivers to be able to configure a custom firmware name that is different from the default name used during remoteproc registration. This function is being introduced to provide a kernel-level equivalent of the current sysfs interface to remoteproc client drivers, and can only change firmwares when the remoteproc is offline. This allows some remoteproc drivers to choose different firmwares at runtime based on the functionality the remote processor is providing. The TI PRU Ethernet driver will be an example of such usage as it requires to use different firmwares for different supported protocols. Also, update the firmware_store() function used by the sysfs interface to reuse this function to avoid code duplication. Reviewed-by: Rishabh Bhatnagar <rishabhb@codeaurora.org> Signed-off-by: Suman Anna <s-anna@ti.com> Link: https://lore.kernel.org/r/20201121032042.6195-1-s-anna@ti.com Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
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.