From: Jean Pihet Date: Thu, 25 Aug 2011 13:35:41 +0000 (+0200) Subject: PM QoS: Implement per-device PM QoS constraints X-Git-Tag: v3.2-rc1~178^2~22^2~3 X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=91ff4cb803df6de9114351b9f2f0f39f397ee03e;p=pandora-kernel.git PM QoS: Implement per-device PM QoS constraints Implement the per-device PM QoS constraints by creating a device PM QoS API, which calls the PM QoS constraints management core code. The per-device latency constraints data strctures are stored in the device dev_pm_info struct. The device PM code calls the init and destroy of the per-device constraints data struct in order to support the dynamic insertion and removal of the devices in the system. To minimize the data usage by the per-device constraints, the data struct is only allocated at the first call to dev_pm_qos_add_request. The data is later free'd when the device is removed from the system. A global mutex protects the constraints users from the data being allocated and free'd. Signed-off-by: Jean Pihet Reviewed-by: Kevin Hilman Signed-off-by: Rafael J. Wysocki --- Reading git-diff-tree failed