tree d7f1fd7609927e15b4e4da50665355d04fc7a99a
parent 8595b87297e77eab4277ca2dfe01c8b6b4e95150
author Soby Mathew <soby.mathew@arm.com> 1412072391 +0100
committer Soby Mathew <soby.mathew@arm.com> 1422026076 +0000

Save 'power_state' early in PSCI CPU_SUSPEND call

This patch adds support to save the "power state" parameter before the
affinity level specific handlers are called in a CPU_SUSPEND call.
This avoids the need to pass the power_state as a parameter to the
handlers and Secure Payload Dispatcher (SPD) suspend spd_pm_ops.
The power_state arguments in the spd_pm_ops operations are now reserved
and must not be used. The SPD can query the relevant power_state fields
by using the psci_get_suspend_afflvl() & psci_get_suspend_stateid() APIs.

NOTE: THIS PATCH WILL BREAK THE SPD_PM_OPS INTERFACE. HENCE THE SECURE
PAYLOAD DISPATCHERS WILL NEED TO BE REWORKED TO USE THE NEW INTERFACE.

Change-Id: I1293d7dc8cf29cfa6a086a009eee41bcbf2f238e