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2018-07-23timekeeping.txt: Correct maxCount of n-bit binary counterSiddaraju DH1-1/+1
A n-bit binary counter can count a maximum of 2^n events and the count value ranges from 0 to (2^n)-1 Signed-off-by: Siddaraju DH <siddarajudh@gmail.com> Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2014-07-23clocksource: document some basic timekeeping conceptsLinus Walleij1-0/+179
This adds some documentation about clock sources, clock events, the weak sched_clock() function and delay timers that answers questions that repeatedly arise on the mailing lists. Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Nicolas Pitre <nico@fluxnic.net> Cc: Colin Cross <ccross@google.com> Cc: John Stultz <john.stultz@linaro.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Ingo Molnar <mingo@redhat.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org> Acked-by: Nicolas Pitre <nico@linaro.org> Signed-off-by: John Stultz <john.stultz@linaro.org>