user/sven/linux.git/drivers/base/power, branch v3.8.4

Merge branch 'pm-sleep'

2013-01-05T23:36:17Z

* pm-sleep: PM: Move disabling/enabling runtime PM to late suspend/early resume

PM: Move disabling/enabling runtime PM to late suspend/early resume

2013-01-05T23:35:55Z

Currently, the PM core disables runtime PM for all devices right after executing subsystem/driver .suspend() callbacks for them and re-enables it right before executing subsystem/driver .resume() callbacks for them. This may lead to problems when there are two devices such that the .suspend() callback executed for one of them depends on runtime PM working for the other. In that case, if runtime PM has already been disabled for the second device, the first one's .suspend() won't work correctly (and analogously for resume). To make those issues go away, make the PM core disable runtime PM for devices right before executing subsystem/driver .suspend_late() callbacks for them and enable runtime PM for them right after executing subsystem/driver .resume_early() callbacks for them. This way the potential conflitcs between .suspend_late()/.resume_early() and their runtime PM counterparts are still prevented from happening, but the subtle ordering issues related to disabling/enabling runtime PM for devices during system suspend/resume are much easier to avoid. Reported-and-tested-by: Jan-Matthias Braun Signed-off-by: Rafael J. Wysocki Reviewed-by: Ulf Hansson Reviewed-by: Kevin Hilman Cc: 3.4+

PM / QoS: Rename local variable in dev_pm_qos_add_ancestor_request()

2013-01-05T23:32:51Z

Local variable 'error' in dev_pm_qos_add_ancestor_request() need not contain error codes only, so rename it to 'ret'. Signed-off-by: Rafael J. Wysocki

Merge branch 'pm-runtime'

2012-11-29T20:46:41Z

* pm-runtime: base: power - use clk_prepare_enable and clk_prepare_disable

Merge branch 'pm-opp'

2012-11-29T20:46:33Z

* pm-opp: PM / OPP: using kfree_rcu() to simplify the code PM / OPP: predictable fail results for opp_find* functions, v2 PM / OPP: Export symbols for module usage. PM / OPP: RCU reclaim

Merge branch 'pm-qos'

2012-11-29T20:40:32Z

* pm-qos: PM / QoS: Handle device PM QoS flags while removing constraints PM / QoS: Resume device before exposing/hiding PM QoS flags PM / QoS: Document request manipulation requirement for flags PM / QoS: Fix a free error in the dev_pm_qos_constraints_destroy() PM / QoS: Fix the return value of dev_pm_qos_update_request() PM / ACPI: Take device PM QoS flags into account PM / Domains: Check device PM QoS flags in pm_genpd_poweroff() PM / QoS: Make it possible to expose PM QoS device flags to user space PM / QoS: Introduce PM QoS device flags support PM / QoS: Prepare struct dev_pm_qos_request for more request types PM / QoS: Introduce request and constraint data types for PM QoS flags PM / QoS: Prepare device structure for adding more constraint types

PM / QoS: Handle device PM QoS flags while removing constraints

2012-11-24T09:10:51Z

PM QoS flags have to be handled by dev_pm_qos_constraints_destroy() in the same way as PM QoS resume latency constraints. That is, if they have been exposed to user space, they have to be hidden from it and the list of flags requests has to be flushed before destroying the device's PM QoS object. Make that happen. Signed-off-by: Rafael J. Wysocki

PM / QoS: fix wrong error-checking condition

2012-11-23T19:55:06Z

dev_pm_qos_add_request() can return 0, 1, or a negative error code, therefore the correct error test is "if (error < 0)." Checking just for non-zero return code leads to erroneous setting of the req->dev pointer to NULL, which then leads to a repeated call to dev_pm_qos_add_ancestor_request() in st1232_ts_irq_handler(). This in turn leads to an Oops, when the I2C host adapter is unloaded and reloaded again because of the inconsistent state of its QoS request list. Signed-off-by: Guennadi Liakhovetski Cc: Signed-off-by: Rafael J. Wysocki

base: power - use clk_prepare_enable and clk_prepare_disable

2012-11-14T23:36:43Z

When PM runtime is enabled in DaVinci and the machine migrates to common clk framework, the clk_enable() gets called without clk_prepare(). This patch is to fix this issue so that PM run time can inter work with common clk framework. Signed-off-by: Murali Karicheri Signed-off-by: Rafael J. Wysocki

PM / OPP: using kfree_rcu() to simplify the code

2012-11-14T23:36:10Z

The callback function of call_rcu() just calls a kfree(), so we can use kfree_rcu() instead of call_rcu() + callback function. dpatch engine is used to auto generate this patch. (https://github.com/weiyj/dpatch) Signed-off-by: Wei Yongjun Signed-off-by: Rafael J. Wysocki