From: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Date: Fri, 2 Nov 2012 00:40:45 +0000 (+0100)
Subject: ACPI / PM: Provide device PM functions operating on struct acpi_device
X-Git-Tag: omap-for-v3.8/fixes-for-merge-window-v4-signed~88^2~16^2~7
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=078eb12648c2f8bba48921f60ec2cec3e1bbc051;p=pandora-kernel.git

ACPI / PM: Provide device PM functions operating on struct acpi_device

If the caller of acpi_bus_set_power() already has a pointer to the
struct acpi_device object corresponding to the device in question, it
doesn't make sense for it to go through acpi_bus_get_device(), which
may be costly, because it involves acquiring the global ACPI
namespace mutex.

For this reason, export the function operating on struct acpi_device
objects used internally by acpi_bus_set_power(), so that it may be
called instead of acpi_bus_set_power() in the above case, and change
its name to acpi_device_set_power().

Additionally, introduce two inline wrappers for checking ACPI PM
capabilities of devices represented by struct acpi_device objects.

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