kernel/linux.git/Documentation/power/runtime_pm.txt, branch linux-4.7.y

PM / runtime: Document steps for device removal

2016-04-05T01:46:59+00:00

Put a reminder that during device removal drivers should revert all PM runtime changes from the probe. Signed-off-by: Krzysztof Kozlowski Acked-by: Alan Stern Signed-off-by: Rafael J. Wysocki

PM / runtime: Add new helper for conditional usage count incrementation

2015-12-21T02:11:12+00:00

Introduce a new runtime PM function, pm_runtime_get_if_in_use(), that will increment the device's runtime PM usage counter and return 1 if its status is RPM_ACTIVE and its usage counter is greater than 0 at the same time (0 will be returned otherwise). This is useful for things that should only be done if the device is active (from the runtime PM perspective) and used by somebody (as indicated by the usage counter) already and they are not worth bothering otherwise. Requested-by: Imre Deak Reviewed-by: Ulf Hansson Signed-off-by: Rafael J. Wysocki

PM / sleep: Allow devices without runtime PM to do direct-complete

2015-07-21T21:14:22+00:00

Don't unset the direct_complete flag on devices that have runtime PM disabled, if they are runtime suspended. This is needed because otherwise ancestor devices wouldn't be able to do direct_complete without adding runtime PM support to all its descendants. Also removes pm_runtime_suspended_if_enabled() because it's now unused. Signed-off-by: Tomeu Vizoso Signed-off-by: Alan Stern Signed-off-by: Rafael J. Wysocki

PM / runtime: add note about re-calling in during device probe()

2015-05-12T22:02:38+00:00

The sh_eth driver has come up with an issue where the runtime_pm code suspends it during the probe() method due to the network device registration re-calling into the driver. Add a note about this into the documentation. Signed-off-by: Ben Dooks Signed-off-by: Ben Hutchings Signed-off-by: Rafael J. Wysocki

Merge branch 'for-linus' of git://ftp.arm.linux.org.uk/~rmk/linux-arm

2014-12-12T23:26:48+00:00

Pull ARM updates from Russell King: "The major updates included in this update are: - Clang compatible stack pointer accesses by Behan Webster. - SA11x0 updates from Dmitry Eremin-Solenikov. - kgdb handling of breakpoints with read-only text/modules - Support for Privileged-no-execute feature on ARMv7 to prevent userspace code execution by the kernel. - AMBA primecell bus handling of irq-safe runtime PM - Unwinding support for memset/memzero/memmove/memcpy functions - VFP fixes for Krait CPUs and improvements in detecting the VFP architecture - A number of code cleanups (using pr_*, removing or reducing the severity of a couple of kernel messages, splitting ftrace asm code out to a separate file, etc.) - Add machine name to stack dump output" * 'for-linus' of git://ftp.arm.linux.org.uk/~rmk/linux-arm: (62 commits) ARM: 8247/2: pcmcia: sa1100: make use of device clock ARM: 8246/2: pcmcia: sa1111: provide device clock ARM: 8245/1: pcmcia: soc-common: enable/disable socket clocks ARM: 8244/1: fbdev: sa1100fb: make use of device clock ARM: 8243/1: sa1100: add a clock alias for sa1111 pcmcia device ARM: 8242/1: sa1100: add cpu clock ARM: 8221/1: PJ4: allow building in Thumb-2 mode ARM: 8234/1: sa1100: reorder IRQ handling code ARM: 8233/1: sa1100: switch to hwirq usage ARM: 8232/1: sa1100: merge GPIO multiplexer IRQ to "normal" irq domain ARM: 8231/1: sa1100: introduce irqdomains support ARM: 8230/1: sa1100: shift IRQs by one ARM: 8229/1: sa1100: replace irq numbers with names in irq driver ARM: 8228/1: sa1100: drop entry-macro.S ARM: 8227/1: sa1100: switch to MULTI_IRQ_HANDLER ARM: 8241/1: Update processor_modes for hyp and monitor mode ARM: 8240/1: MCPM: document mcpm_sync_init() ARM: 8239/1: Introduce {set,clear}_pte_bit ARM: 8238/1: mm: Refine set_memory_* functions ARM: 8237/1: fix flush_pfn_alias ...

ARM: 8199/1: PM / Runtime: Add getter for querying the IRQ safe option v12

2014-11-17T20:23:34+00:00

Add a simple getter pm_runtime_is_irq_safe() for querying whether runtime PM IRQ safe was set or not. Various bus drivers implementing runtime PM may use choose to suspend differently based on IRQ safeness status of child driver (e.g. do not unprepare the clock if IRQ safe is not set). Signed-off-by: Krzysztof Kozlowski Reviewed-by: Ulf Hansson Acked-by: Rafael J. Wysocki Signed-off-by: Russell King

Documentation: power: Fix typo in Documentation/power

2014-11-08T14:15:14+00:00

This patch fix spelling typos found in Documentation/power. Signed-off-by: Masanari Iida Signed-off-by: Jonathan Corbet

Merge branches 'pnp', 'powercap', 'pm-runtime' and 'pm-opp'

2014-06-03T21:13:00+00:00

* pnp: MAINTAINERS: Remove Bjorn Helgaas as PNP maintainer PNP / resources: remove positive test on unsigned values * powercap: powercap / RAPL: add new CPU IDs powercap / RAPL: further relax energy counter checks * pm-runtime: PM / runtime: Update documentation to reflect the current code flow * pm-opp: PM / OPP: discard duplicate OPPs PM / OPP: Make OPP invisible to users in Kconfig PM / OPP: fix incorrect OPP count handling in of_init_opp_table

PM / sleep: Update device PM documentation to cover direct_complete

2014-05-16T21:15:44+00:00

Update the device PM documentation in devices.txt and runtime_pm.txt to reflect the changes in the system suspend and resume handling related to the introduction of the new power.direct_complete flag. Signed-off-by: Rafael J. Wysocki Acked-by: Alan Stern

PM / runtime: Update documentation to reflect the current code flow

2014-05-16T21:05:40+00:00

The runtime PM documentation in runtime_pm.txt has not been updated after some changes to the system suspend and resume core code, so update it to reflect the current code flow. Signed-off-by: Rafael J. Wysocki Acked-by: Alan Stern