]> git.proxmox.com Git - mirror_ubuntu-kernels.git/commit
regulator: add PM suspend and resume hooks
authorChunyan Zhang <zhang.chunyan@linaro.org>
Fri, 26 Jan 2018 13:08:47 +0000 (21:08 +0800)
committerMark Brown <broonie@kernel.org>
Fri, 26 Jan 2018 14:43:55 +0000 (14:43 +0000)
commitf7efad10b5c492892b1e5decf5d3ebb29fa5c9af
tree10ca83d0c4c018b03cdaf9a9597e3d75bf2e1a1c
parentaa27bbc6c6c60227c096d515f55ffe6cdfef7d2b
regulator: add PM suspend and resume hooks

In this patch, consumers are allowed to set suspend voltage, and this
actually just set the "uV" in constraint::regulator_state, when the
regulator_suspend_late() was called by PM core through callback when
the system is entering into suspend, the regulator device would act
suspend activity then.

And it assumes that if any consumer set suspend voltage, the regulator
device should be enabled in the suspend state.  And if the suspend
voltage of a regulator device for all consumers was set zero, the
regulator device would be off in the suspend state.

This patch also provides a new function hook to regulator devices for
resuming from suspend states.

Signed-off-by: Chunyan Zhang <zhang.chunyan@linaro.org>
Signed-off-by: Mark Brown <broonie@kernel.org>
drivers/regulator/core.c
drivers/regulator/of_regulator.c
include/linux/regulator/driver.h
include/linux/regulator/machine.h