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author | root <root@artemis.panaceas.org> | 2015-12-25 04:40:36 +0000 |
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committer | root <root@artemis.panaceas.org> | 2015-12-25 04:40:36 +0000 |
commit | 849369d6c66d3054688672f97d31fceb8e8230fb (patch) | |
tree | 6135abc790ca67dedbe07c39806591e70eda81ce /Documentation/cpuidle/driver.txt | |
download | linux-3.0.35-kobo-849369d6c66d3054688672f97d31fceb8e8230fb.tar.gz linux-3.0.35-kobo-849369d6c66d3054688672f97d31fceb8e8230fb.tar.bz2 linux-3.0.35-kobo-849369d6c66d3054688672f97d31fceb8e8230fb.zip |
initial_commit
Diffstat (limited to 'Documentation/cpuidle/driver.txt')
-rw-r--r-- | Documentation/cpuidle/driver.txt | 31 |
1 files changed, 31 insertions, 0 deletions
diff --git a/Documentation/cpuidle/driver.txt b/Documentation/cpuidle/driver.txt new file mode 100644 index 00000000..7a9e09ec --- /dev/null +++ b/Documentation/cpuidle/driver.txt @@ -0,0 +1,31 @@ + + + Supporting multiple CPU idle levels in kernel + + cpuidle drivers + + + + +cpuidle driver hooks into the cpuidle infrastructure and handles the +architecture/platform dependent part of CPU idle states. Driver +provides the platform idle state detection capability and also +has mechanisms in place to support actual entry-exit into CPU idle states. + +cpuidle driver initializes the cpuidle_device structure for each CPU device +and registers with cpuidle using cpuidle_register_device. + +It can also support the dynamic changes (like battery <-> AC), by using +cpuidle_pause_and_lock, cpuidle_disable_device and cpuidle_enable_device, +cpuidle_resume_and_unlock. + +Interfaces: +extern int cpuidle_register_driver(struct cpuidle_driver *drv); +extern void cpuidle_unregister_driver(struct cpuidle_driver *drv); +extern int cpuidle_register_device(struct cpuidle_device *dev); +extern void cpuidle_unregister_device(struct cpuidle_device *dev); + +extern void cpuidle_pause_and_lock(void); +extern void cpuidle_resume_and_unlock(void); +extern int cpuidle_enable_device(struct cpuidle_device *dev); +extern void cpuidle_disable_device(struct cpuidle_device *dev); |