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(parent: e64f05d) | patch
drivers: net: davinci_mdio: remove busy loop on wait user access
authorMaxim Uvarov <muvarov@gmail.com>
Thu, 10 Aug 2017 07:47:46 +0000 (10:47 +0300)
committerDavid S. Miller <davem@davemloft.net>
Fri, 11 Aug 2017 21:23:59 +0000 (14:23 -0700)
commitdb270d651c4132751e88599b7f7b774f8db4d8e2
treec48837e059647422f9c99b320abda09d5b9f376etree | snapshot
parente64f05d64b9919c84c5becc58538af57f3a416eecommit | diff
drivers: net: davinci_mdio: remove busy loop on wait user access

Polling 14 mdio devices on single mdio bus eats 30% of 1Ghz cpu time
due to busy loop in wait(). Add small delay to relax cpu.

Signed-off-by: Max Uvarov <muvarov@gmail.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Reviewed-by: Grygorii Strashko <grygorii.strashko@ti.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
drivers/net/ethernet/ti/davinci_mdio.c diff | blob | history
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