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| author | Caesar Wang <wxt@rock-chips.com> | 2016-05-03 10:23:50 +0800 |
|---|---|---|
| committer | Eduardo Valentin <edubezval@gmail.com> | 2016-05-17 07:28:33 -0700 |
| commit | 2fe5c1b0453c445f8a19e1a53f8297b21c2cba4c (patch) | |
| tree | 82c3dd32983051769ba6281d5fea89fde4c65e70 /lib/ratelimit.c | |
| parent | 678065d5b786763cb9f5d97673409ae32ead2314 (diff) | |
| download | linux-stable-2fe5c1b0453c445f8a19e1a53f8297b21c2cba4c.tar.gz linux-stable-2fe5c1b0453c445f8a19e1a53f8297b21c2cba4c.tar.bz2 linux-stable-2fe5c1b0453c445f8a19e1a53f8297b21c2cba4c.zip | |
thermal: rockchip: use the usleep_range instead of udelay
Documentation/timers/timers-howto.txt recommends to use
usleep_range on delays > 10usec.
The usleep_range indeed reduces CPU load, since the udelay will busy wait
for enough loop cycles to achieve the desired delay.
Fixes commit b06c52db39fd ("thermal: rockchip:
handle the power sequence for tsadc controller").
Cc: Zhang Rui <rui.zhang@intel.com>
Cc: Eduardo Valentin <edubezval@gmail.com>
Cc: Heiko Stuebner <heiko@sntech.de>
Suggested-by: Eduardo Valentin <edubezval@gmail.com>
Signed-off-by: Caesar Wang <wxt@rock-chips.com>
Signed-off-by: Eduardo Valentin <edubezval@gmail.com>
Diffstat (limited to 'lib/ratelimit.c')
0 files changed, 0 insertions, 0 deletions