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d5a5a6e4d1
The Versatile sp810 "timerclken" clock implements a mux with a set_parent hook, but doesn't provide a determine_rate implementation. This is a bit odd, since set_parent() is there to, as its name implies, change the parent of a clock. However, the most likely candidates to trigger that parent change are either the assigned-clock-parents device tree property or a call to clk_set_rate(), with determine_rate() figuring out which parent is the best suited for a given rate. This mismatch is probably due to the fact that the driver introduction predates the determine_rate introduction, and it was never revised since then. The default, implicit, behaviour that has been in use so far has thus been to simply keep using the current parent in all cases. This is also the behaviour of the new clk_hw_determine_rate_no_reparent() helper, so we can simply use it to make our expectation explicit. Cc: Linus Walleij <linus.walleij@linaro.org> Cc: Pawel Moll <pawel.moll@arm.com> Cc: linux-arm-kernel@lists.infradead.org Signed-off-by: Maxime Ripard <maxime@cerno.tech> Link: https://lore.kernel.org/r/20221018-clk-range-checks-fixes-v4-39-971d5077e7d2@cerno.tech Acked-by: Linus Walleij <linus.walleij@linaro.org> Acked-by: Pawel Moll <pawel.moll@arm.com> Signed-off-by: Stephen Boyd <sboyd@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 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.