mirror of
https://github.com/hardkernel/linux.git
synced 2026-06-10 12:57:06 +09:00
4c87f3ff78
Arm SCMI updates for v6.4 The main and only new addition this time around is the support for unidirectional mailbox channels. SCMI communicates between the agent and the platform using one bidirectional 'a2p' channel used by the agent to send SCMI commands and synchronously receive the related replies, and an optional 'p2a' unidirectional channel used to asynchronously receive delayed responses and notifications emitted from the platform. In order to support platforms that support only unidirectional mailbox hardware channels, the existing bindings are extended to support the same. Both bidirectional and unidirectional channels support for the SCMI mailbox can coexist. The correct and effective combination of defined 'mboxes' and 'shmem' descriptors determines the type of the mailbox channel. This also contains a fix for the transfers allocation on Rx channel especially when the base protocol doesn't use Rx channel while some of the protocols can have dedicated Rx channels. * tag 'scmi-updates-6.4' of git://git.kernel.org/pub/scm/linux/kernel/git/sudeep.holla/linux: firmware: arm_scmi: Add support for unidirectional mailbox channels dt-bindings: firmware: arm,scmi: Support mailboxes unidirectional channels firmware: arm_scmi: Fix xfers allocation on Rx channel firmware: arm_scmi: Use the bitmap API to allocate bitmaps firmware: arm_scmi: Fix device node validation for mailbox transport firmware: arm_scmi: Fix raw coexistence mode behaviour on failure path firmware: arm_scmi: Remove duplicate include header inclusion firmware: arm_scmi: Return a literal instead of a variable firmware: arm_scmi: Clean up a return statement in scmi_probe Link: https://lore.kernel.org/r/20230417145743.1904318-1-sudeep.holla@arm.com Signed-off-by: Arnd Bergmann <arnd@arndb.de>
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.