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commit 4e7ca0b57f3bc09ba3e4ab86bf6b7c35134bfd04 upstream. We should always use firmware's poweroff & reboot service if it's available as firmware may need to perform more task than platform's syscon etc. However _machine_restart & poweroff hooks are registered at low priority, which means platform reboot driver can override them. Register firmware based reboot/poweroff implementation with register_sys_off_handler with appropriate priority so that they will be prioritised. Remove _machine_halt hook as it's deemed to be unnecessary. Cc: stable@vger.kernel.org Signed-off-by: Jiaxun Yang <jiaxun.yang@flygoat.com> Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.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.