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a69b4ba19aCurrently the MFD driver disables all the IRQs upon entering system suspend, however there are some issues with this approach. As this device uses runtime force suspend. The regmap IRQ handler can run, claim a PM runtime reference and get scheduled, the MFD can then force suspend. When the IRQ thread gets rescheduled it will try to access volatile registers on the suspended device. Furthermore, this race also applies to work queue items scheduled by the IRQ handlers. As the MFD code doesn't know about the individual work queue items, the end drivers must mask their own IRQs and sync in any work queues as part of entering system suspend. Update the code here to do so. Signed-off-by: Charles Keepax <ckeepax@opensource.cirrus.com> Message-ID: <20250903094549.271068-4-ckeepax@opensource.cirrus.com> Signed-off-by: Mark Brown <broonie@kernel.org> |
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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 reStructuredText 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.