From: Thomas Renninger <trenn@suse.de>
Date: Mon, 7 Apr 2014 13:16:57 +0000 (+0200)
Subject: ACPI / tools: Introduce ec_access.c - tool to access the EC
X-Git-Tag: omap-for-v3.16/fixes-against-rc1~39^2~5^2^2
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=d7cddbb07b18cc45e57420005850ca0326b9e074;p=pandora-kernel.git

ACPI / tools: Introduce ec_access.c - tool to access the EC

This userspace tool accesses the EC through the ec_sys debug driver
(through /sys/kernel/debug/ec/ec0/io).

The EC command/data registers cannot be accessed directly, because they
may be manipulated by the AML interpreter in parallel.

The ec_sys driver synchronizes user space (debug) access with the AML
interpreter.

Signed-off-by: Thomas Renninger <trenn@suse.de>
[rjw: Changelog]
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
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