From: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Date: Sun, 3 Feb 2013 13:57:32 +0000 (+0100)
Subject: ACPI / PM: Handle missing _PSC in acpi_bus_update_power()
X-Git-Tag: v3.9-rc1~146^2~10^2
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=511d5c4212948fe55035b8fed61ac0e125af5a05;p=pandora-kernel.git

ACPI / PM: Handle missing _PSC in acpi_bus_update_power()

If _PS0 is defined for an ACPI device node, but _PSC isn't and
the device node doesn't use power resources for power management,
acpi_bus_update_power() will fail to update the power state of it,
because acpi_device_get_power() returns ACPI_STATE_UNKNOWN in that
case.

To handle that situation make acpi_bus_update_power() follow
acpi_bus_init_power() and try to force the given device node into
power state D0.

Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---

Reading git-diff-tree failed