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The stm32 timer block is able to have a counter and a comparator. Instead of using the auto-reload register for periodic events, we switch to oneshot mode by using the comparator register. The timer is able to generate an interrupt when the counter overflows but we don't want that as this counter will be use as a clocksource in the next patches. So it is disabled by the UDIS bit of the control register. Tested-by: Benjamin Gaignard <benjamin.gaignard@st.com> Signed-off-by: Benjamin Gaignard <benjamin.gaignard@st.com> Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org> Acked-by: Benjamin Gaignard <benjamin.gaignard@st.com> Cc: Alexandre Torgue <alexandre.torgue@st.com> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Maxime Coquelin <mcoquelin.stm32@gmail.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Thomas Gleixner <tglx@linutronix.de> Link: http://lkml.kernel.org/r/1515418139-23276-16-git-send-email-daniel.lezcano@linaro.org Signed-off-by: Ingo Molnar <mingo@kernel.org>
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.