tree a01aed9b05a1a35a9e57f88b111ca5746cc73166
parent 35a77428b2b3c24ac7e68b3961f866044dcea800
author Furquan Shaikh <furquan@google.com> 1601767435 -0700
committer Furquan Shaikh <furquan@google.com> 1602382397 +0000

pci_device: Add a helper function for determining if PCI device is wake source

This change adds a helper function `pci_dev_is_wake_source()` that
checks PME_STATUS and PME_ENABLE bits in PM control and status
register to determine if the given device is the source of wake.

BUG=b:169802515
BRANCH=zork

Change-Id: I06e9530b568543ab2f05a4f38dc5c3a527ff391e
Signed-off-by: Furquan Shaikh <furquan@google.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/46030
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Rob Barnes <robbarnes@google.com>
Reviewed-by: Tim Wawrzynczak <twawrzynczak@chromium.org>