clk: tests: Add tests for notifiers
We're recently encountered a regression due to the rates reported through the clk_notifier_data being off when changing parents. Let's add a test suite and a test to make sure that we do get notified and with the proper rates. Suggested-by: Stephen Boyd <sboyd@kernel.org> Signed-off-by: Maxime Ripard <maxime@cerno.tech> Link: https://lore.kernel.org/r/20221010-rpi-clk-fixes-again-v1-2-d87ba82ac404@cerno.techTested-by: Marek Szyprowski <m.szyprowski@samsung.com> Signed-off-by: Stephen Boyd <sboyd@kernel.org>
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