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[ Upstream commit f3f11cfe890733373ddbb1ce8991ccd4ee5e79e1 ] Acquire the mailbox handle during device probe and do not release handle in stop/detach routine or error paths. This removes the redundant requests for mbox handle later during rproc start/attach. This also allows to defer remoteproc driver's probe if mailbox is not probed yet. Signed-off-by: Beleswar Padhi <b-padhi@ti.com> Link: https://lore.kernel.org/r/20240808074127.2688131-3-b-padhi@ti.com Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org> Stable-dep-of: 8fa052c29e50 ("remoteproc: k3-r5: Delay notification of wakeup event") Signed-off-by: Sasha Levin <sashal@kernel.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.