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i2c-i801: Use usleep_range to wait for command completion
authorJean Delvare <khali@linux-fr.org>
Mon, 26 Mar 2012 19:47:19 +0000 (21:47 +0200)
committerJean Delvare <khali@endymion.delvare>
Mon, 26 Mar 2012 19:47:19 +0000 (21:47 +0200)
commit84c1af4c21d645a02a4780cdf61c7551d8e7bb56
tree47ad0ea490045e73c6f4d757123ac4c95ea0a676tree | snapshot
parent062737fb6d90c632439b1f77ad6a4965cfc84a20commit | diff
i2c-i801: Use usleep_range to wait for command completion

Use usleep_range instead of msleep when waiting for command
completion. Most SMBus commands complete in less than 2 jiffies so
this brings a pleasant performance boost.

Strongly inspired from a similar change by Olivier Sobrie to the
i2c-isch driver.

Signed-off-by: Jean Delvare <khali@linux-fr.org>
Cc: Olivier Sobrie <olivier@sobrie.be>
drivers/i2c/busses/i2c-i801.c diff | blob | history
Linux kernel for KaRo TX COM modules