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(parent: 5823fd0) | patch
ENGR00215188-2 LDO bypass: disable LDO bypass before suspend and back in resume
authorRobin Gong <B38343@freescale.com>
Thu, 28 Jun 2012 06:24:40 +0000 (14:24 +0800)
committerLothar Waßmann <LW@KARO-electronics.de>
Fri, 24 May 2013 06:34:53 +0000 (08:34 +0200)
commitd5c7f47671c74d2cb45ddc7e2a5289726587493c
tree1be30381f19dcf3ce7d45573ac0648ed8f20399btree | snapshot
parent5823fd0c0df71bd81bd5d3a2e406e0ae3bd0c604commit | diff
ENGR00215188-2 LDO bypass: disable LDO bypass before suspend and back in resume

There is one SOC bug if use LDO bypass, VDDARM_CAP will take 2ms to raise up
normal voltage when system resume back, longer than 40us before. Then it will
cause cpu hang if resume back.

Workaround:
We can disable LDO bypass at the last minute of suspend and enable LDO bypass
again as long as system resume back.
Signed-off-by: Robin Gong <B38343@freescale.com>
arch/arm/mach-mx6/mx6_suspend.S diff | blob | history
Linux kernel for KaRo TX COM modules