tree a1d199b96bd8f7d5d5f8b8cbd85e0bc6ed44b223
parent 363c701a997cdae95f47df9d6b83110d8f0651a5
author Varun Wadekar <vwadekar@nvidia.com> 1440573543 +0530
committer Varun Wadekar <vwadekar@nvidia.com> 1443589708 +0530

Send power management events to the Trusted OS (TLK)

This patch adds PM handlers to TLKD for the system suspend/resume and
system poweroff/reset cases. TLK expects all SMCs through a single
handler, which then fork out into multiple handlers depending on the
SMC. We tap into the same single entrypoint by restoring the S-EL1
context before passing the PM event via register 'x0'. On completion
of the PM event, TLK sends a completion SMC and TLKD then moves on
with the PM process.

Signed-off-by: Varun Wadekar <vwadekar@nvidia.com>