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);