tree a4c2078b4aa89273b7d90992836a5a4b1ca26f90
parent ad54c3ddb472410f05083dbcf03fcec67ab7b2a5
author Nishanth Menon <nm@ti.com> 1330558184 +0100
committer Kevin Hilman <khilman@ti.com> 1330975766 -0800

ARM: OMAP3+: SmartReflex: Add a shutdown hook

SmartReflex fix for erratum ID i724.

Since OMAP's VP and PRM modules do not get reset by warm reset,
we should ensure that proper shutdown procedure is followed prior
to allowing the kernel to reboot back up.

Without this, Smartreflex module might be left active or
system might be caught in an indeterminate sequence when
software controlled reboot is triggered, leaving the next
reboot behavior to be unpredictable.

In the case of hardware controlled warm reset such as that
by watchdog timer, prevention of this scenario is not possible.

Signed-off-by: Nishanth Menon <nm@ti.com>
Signed-off-by: Jean Pihet <j-pihet@ti.com>
Reviewed-by: Kevin Hilman <khilman@ti.com>
Signed-off-by: Kevin Hilman <khilman@ti.com>