From: Andres Salomon Date: Thu, 12 Jul 2012 00:40:25 +0000 (-0700) Subject: Platform: OLPC: allow EC cmd to be overridden, and create a workqueue to call it X-Git-Tag: v3.6-rc1~1^2~6 X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=3d26c20bae9e97c98f7240184427d3a38515d406;p=pandora-kernel.git Platform: OLPC: allow EC cmd to be overridden, and create a workqueue to call it This provides a new API allows different OLPC architectures to override the EC driver. x86 and ARM OLPC machines use completely different EC backends. The olpc_ec_cmd is synchronous, and waits for the workqueue to send the command to the EC. Multiple callers can run olpc_ec_cmd() at once, and they will by serialized and sleep while only one executes on the EC at a time. We don't provide an unregister function, as that doesn't make sense within the context of OLPC machines - there's only ever 1 EC, it's critical to functionality, and it certainly not hotpluggable. Signed-off-by: Andres Salomon Acked-by: Paul Fox Reviewed-by: Thomas Gleixner --- Reading git-diff-tree failed