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Per Stephen Boyd's explanation in the link below, QUP RCG clocks do not need to be parked when switching frequency. A side-effect in parking to a lower frequency can be a momentary invalid clock driven on an in-use serial peripheral. This can cause "junk" to spewed out of a UART as a low-impact example. On the x1e80100-crd this serial port junk can be observed on linux-next. Apply a similar fix to the x1e80100 Global Clock controller to remediate. Link: https://lore.kernel.org/all/20240819233628.2074654-3-swboyd@chromium.org/ Fixes:161b7c401f("clk: qcom: Add Global Clock controller (GCC) driver for X1E80100") Fixes:929c75d575("clk: qcom: gcc-sm8550: Mark RCGs shared where applicable") Suggested-by: Neil Armstrong <neil.armstrong@linaro.org> Signed-off-by: Bryan O'Donoghue <bryan.odonoghue@linaro.org> Link: https://lore.kernel.org/r/20240823-x1e80100-clk-fix-v1-1-0b1b4f5a96e8@linaro.org Reviewed-by: Konrad Dybcio <konradybcio@kernel.org> Signed-off-by: Stephen Boyd <sboyd@kernel.org>
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.