powerpc/powernv: Support OPAL requested heartbeat
authorBenjamin Herrenschmidt <benh@kernel.crashing.org>
Fri, 14 Nov 2014 05:13:50 +0000 (16:13 +1100)
committerBenjamin Herrenschmidt <benh@kernel.crashing.org>
Wed, 25 Mar 2015 05:53:27 +0000 (16:53 +1100)
If OPAL requests it, call it back via opal_poll_events() at a
regular interval. Some versions of OPAL on some machines require
this to operate some internal timeouts properly.

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
arch/powerpc/platforms/powernv/opal.c

Simple merge