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4eb67a2096
There may be a race, when configuring two PWM channels, with different prescaler values, when there's no active channel yet. Add mutex lock to avoid concurrent access on PWM apply state. This is also precursor patch for PWM capture support. Signed-off-by: Fabrice Gasnier <fabrice.gasnier@st.com> Reviewed-by: Benjamin Gaignard <benjamin.gaignard@linaro.org> Signed-off-by: Thierry Reding <thierry.reding@gmail.com>
Linux kernel ============ This file was moved to Documentation/admin-guide/README.rst Please notice that there are several guides for kernel developers and users. These guides can be rendered in a number of formats, like HTML and PDF. In order to build the documentation, use ``make htmldocs`` or ``make pdfdocs``. 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.