diff options
| author |   Krzysztof Kozlowski <k.kozlowski@samsung.com> | 2014-11-14 09:47:25 +0100 |
|---|---|---|
| committer |   Russell King <rmk+kernel@arm.linux.org.uk> | 2014-11-17 20:23:34 +0000 |
| commit | 3fb1581ea1ab0aec6ac5430dc0e257a8c9b71680 (patch) | |
| tree | 6af43faea7b2cbe61d4aefe54a1b3ebe34204d7f /Documentation/power | |
| parent | Linux 3.18-rc1 (diff) | |
| download | linux-dev-3fb1581ea1ab0aec6ac5430dc0e257a8c9b71680.tar.xz linux-dev-3fb1581ea1ab0aec6ac5430dc0e257a8c9b71680.zip | |
ARM: 8199/1: PM / Runtime: Add getter for querying the IRQ safe option v12
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 <k.kozlowski@samsung.com>
Reviewed-by: Ulf Hansson <ulf.hansson@linaro.org>
Acked-by: Rafael J. Wysocki <rjw@rjwysocki.net>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Diffstat (limited to 'Documentation/power')
| -rw-r--r-- | Documentation/power/runtime_pm.txt | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/Documentation/power/runtime_pm.txt b/Documentation/power/runtime_pm.txt index f32ce5419573..397b81593142 100644 --- a/Documentation/power/runtime_pm.txt +++ b/Documentation/power/runtime_pm.txt @@ -468,6 +468,10 @@ drivers/base/power/runtime.c and include/linux/pm_runtime.h: - set the power.irq_safe flag for the device, causing the runtime-PM callbacks to be invoked with interrupts off + bool pm_runtime_is_irq_safe(struct device *dev); + - return true if power.irq_safe flag was set for the device, causing + the runtime-PM callbacks to be invoked with interrupts off + void pm_runtime_mark_last_busy(struct device *dev); - set the power.last_busy field to the current time |