9461f7b33d
CLK_SET_RATE_GATE should prevent any operation which may result in a rate change or glitch while the clock is prepared/enabled. IOW, the following sequence is not allowed anymore with CLK_SET_RATE_GATE: * clk_get() * clk_prepare_enable() * clk_get_rate() * clk_set_rate() At the moment this is enforced on the leaf clock of the operation, not along the tree. This problematic because, if a PLL has the CLK_RATE_GATE, it won't be enforced if the clk_set_rate() is called on its child clocks. Using clock rate protection, we can now enforce CLK_SET_RATE_GATE along the clock tree Acked-by: Linus Walleij <linus.walleij@linaro.org> Tested-by: Quentin Schulz <quentin.schulz@free-electrons.com> Tested-by: Maxime Ripard <maxime.ripard@free-electrons.com> Signed-off-by: Jerome Brunet <jbrunet@baylibre.com> Signed-off-by: Michael Turquette <mturquette@baylibre.com> Link: lkml.kernel.org/r/20180619134051.16726-3-jbrunet@baylibre.com
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.
See Documentation/00-INDEX for a list of what is contained in each file.
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.