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/openbmc/linux/drivers/clk/ux500/ |
H A D | clk-sysctrl.c | c942081c Thu Apr 11 06:04:11 CDT 2019 Nicholas Mc Guire <hofrat@opentech.at> clk: ux500: add range to usleep_range
Providing a range for usleep_range() allows the hrtimer subsystem to coalesce timers - the delay is runtime configurable so a factor 2 is taken to provide the range. With the expected range for enable_delay_us being milliseconds, the range should lie in the 250us range which is sufficient for hrtimer optimization.
Signed-off-by: Nicholas Mc Guire <hofrat@opentech.at> Acked-by: Ulf Hansson <ulf.hansson@linaro.org> Signed-off-by: Stephen Boyd <sboyd@kernel.org> c942081c Thu Apr 11 06:04:11 CDT 2019 Nicholas Mc Guire <hofrat@opentech.at> clk: ux500: add range to usleep_range Providing a range for usleep_range() allows the hrtimer subsystem to coalesce timers - the delay is runtime configurable so a factor 2 is taken to provide the range. With the expected range for enable_delay_us being milliseconds, the range should lie in the 250us range which is sufficient for hrtimer optimization. Signed-off-by: Nicholas Mc Guire <hofrat@opentech.at> Acked-by: Ulf Hansson <ulf.hansson@linaro.org> Signed-off-by: Stephen Boyd <sboyd@kernel.org>
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