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0a679336dc
The current code calls arm_smmu_rpm_use_autosuspend() during device attach, which seems unusual as it sets the autosuspend delay and the 'use_autosuspend' flag for the smmu device. These parameters can be simply set once during the smmu probe and in order to avoid bouncing rpm states, we can simply mark_last_busy() during a client dev attach as discussed in [1]. Move the handling of arm_smmu_rpm_use_autosuspend() to the SMMU probe and modify the arm_smmu_rpm_put() function to mark_last_busy() before calling __pm_runtime_put_autosuspend(). Additionally, s/pm_runtime_put_autosuspend/__pm_runtime_put_autosuspend/ to help with the refactor of the pm_runtime_put_autosuspend() API [2]. Link: https://lore.kernel.org/r/20241023164835.GF29251@willie-the-truck [1] Link: https://git.kernel.org/linus/b7d46644e554 [2] Signed-off-by: Pranjal Shrivastava <praan@google.com> Link: https://lore.kernel.org/r/20250123195636.4182099-1-praan@google.com Signed-off-by: Will Deacon <will@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.