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Message-ID: <155493683173.20095.12913107010666279046@swboyd.mtv.corp.google.com>
Date: Wed, 10 Apr 2019 15:53:51 -0700
From: Stephen Boyd <sboyd@...nel.org>
To: Nicholas Mc Guire <hofrat@...ntech.at>,
Ulf Hansson <ulf.hansson@...aro.org>
Cc: Michael Turquette <mturquette@...libre.com>,
linux-arm-kernel@...ts.infradead.org, linux-clk@...r.kernel.org,
linux-kernel@...r.kernel.org,
Nicholas Mc Guire <hofrat@...ntech.at>
Subject: Re: [PATCH RFC] clk: ux500: add range to usleep_range
Quoting Nicholas Mc Guire (2019-04-06 20:13:24)
> 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.
>
> Signed-off-by: Nicholas Mc Guire <hofrat@...ntech.at>
> ---
I think this driver is in maintenance mode. I'll wait for Ulf to ack or
review this change before applying.
> diff --git a/drivers/clk/ux500/clk-sysctrl.c b/drivers/clk/ux500/clk-sysctrl.c
> index 7c0403b..a1fa3fb 100644
> --- a/drivers/clk/ux500/clk-sysctrl.c
> +++ b/drivers/clk/ux500/clk-sysctrl.c
> @@ -42,7 +42,7 @@ 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*2);
Please add space around that multiply.
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