From mboxrd@z Thu Jan  1 00:00:00 1970
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Subject: usleep_range without a range
From: Joe Perches <joe@perches.com>
To: UlfHansson <ulf.hansson@linaro.org>, MichaelTurquette
 <mturquette@baylibre.com>, StephenBoyd <sboyd@kernel.org>,
 "RafaelJ.Wysocki" <rjw@rjwysocki.net>, VireshKumar
 <viresh.kumar@linaro.org>,  BenjaminHerrenschmidt
 <benh@kernel.crashing.org>, PaulMackerras <paulus@samba.org>,
 MichaelEllerman <mpe@ellerman.id.au>,  SakariAilus <sakari.ailus@iki.fi>,
 MauroCarvalhoChehab <mchehab@kernel.org>, SebastianReichel
 <sre@kernel.org>, GregKroah-Hartman <gregkh@linuxfoundation.org>,
 LiamGirdwood <lgirdwood@gmail.com>, MarkBrown <broonie@kernel.org>,
 JaroslavKysela <perex@perex.cz>, TakashiIwai <tiwai@suse.com>
Cc: linux-arm-kernel@lists.infradead.org, linux-clk@vger.kernel.org,
	linux-kernel@vger.kernel.org, linux-pm@vger.kernel.org,
	linuxppc-dev@lists.ozlabs.org, linux-media@vger.kernel.org,
	devel@driverdev.osuosl.org, alsa-devel@alsa-project.org
Date: Mon, 12 Feb 2018 14:03:48 -0800
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List-ID: <linux-clk.vger.kernel.org>

scheduling can generally be better when these values are
not identical.  Perhaps these ranges should be expanded.

$ git grep -P -n "usleep_range\s*\(\s*([\w\.\>\-]+)\s*,\s*\1\s*\)"
drivers/clk/ux500/clk-sysctrl.c:45:             usleep_range(clk->enable_delay_us, clk->enable_delay_us);
drivers/cpufreq/pmac64-cpufreq.c:140:           usleep_range(1000, 1000);
drivers/cpufreq/pmac64-cpufreq.c:239:   usleep_range(10000, 10000); /* should be faster , to fix */
drivers/cpufreq/pmac64-cpufreq.c:284:           usleep_range(500, 500);
drivers/media/i2c/smiapp/smiapp-core.c:1228:    usleep_range(1000, 1000);
drivers/media/i2c/smiapp/smiapp-core.c:1235:    usleep_range(1000, 1000);
drivers/media/i2c/smiapp/smiapp-core.c:1240:    usleep_range(sleep, sleep);
drivers/media/i2c/smiapp/smiapp-core.c:1387:    usleep_range(5000, 5000);
drivers/media/i2c/smiapp/smiapp-quirk.c:205:    usleep_range(2000, 2000);
drivers/media/i2c/smiapp/smiapp-regs.c:279:             usleep_range(2000, 2000);
drivers/power/supply/ab8500_fg.c:643:   usleep_range(100, 100);
drivers/staging/rtl8192u/r819xU_phy.c:180:      usleep_range(1000, 1000);
drivers/staging/rtl8192u/r819xU_phy.c:736:                      usleep_range(1000, 1000);
drivers/staging/rtl8192u/r819xU_phy.c:740:                      usleep_range(1000, 1000);
sound/soc/codecs/ab8500-codec.c:1065:                   usleep_range(AB8500_ANC_SM_DELAY, AB8500_ANC_SM_DELAY);
sound/soc/codecs/ab8500-codec.c:1068:                   usleep_range(AB8500_ANC_SM_DELAY, AB8500_ANC_SM_DELAY);