From c942081c87dd532397d796b5c0196e95d5d45092 Mon Sep 17 00:00:00 2001 From: Nicholas Mc Guire Date: Thu, 11 Apr 2019 13:04:11 +0200 Subject: 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 Acked-by: Ulf Hansson Signed-off-by: Stephen Boyd --- drivers/clk/ux500/clk-sysctrl.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) (limited to 'drivers/clk') diff --git a/drivers/clk/ux500/clk-sysctrl.c b/drivers/clk/ux500/clk-sysctrl.c index 7c0403b733ae..698306f4801f 100644 --- a/drivers/clk/ux500/clk-sysctrl.c +++ b/drivers/clk/ux500/clk-sysctrl.c @@ -42,7 +42,8 @@ static int clk_sysctrl_prepare(struct clk_hw *hw) clk->reg_bits[0]); if (!ret && clk->enable_delay_us) - usleep_range(clk->enable_delay_us, clk->enable_delay_us); + usleep_range(clk->enable_delay_us, clk->enable_delay_us + + (clk->enable_delay_us >> 2)); return ret; } -- cgit v1.2.3