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| author |   Samuel Morris <samorris@lexmark.com> | 2018-05-29 10:06:12 +0000 |
|---|---|---|
| committer |   Tejun Heo <tj@kernel.org> | 2018-06-18 10:58:55 -0700 |
| commit | aece27a2f01be4bb7683790f69cd1bed3a0929a2 (patch) | |
| tree | 7a54d8b35b74fe7df3f2e08755c2f01ef7d5f329 /include/linux | |
| parent | ata: ahci: rpm_put port on port_stop to match rpm_get in port_start (diff) | |
| download | linux-dev-aece27a2f01be4bb7683790f69cd1bed3a0929a2.tar.xz linux-dev-aece27a2f01be4bb7683790f69cd1bed3a0929a2.zip | |
ata: ahci_platform: allow disabling of hotplug to save power
A number of resources remain powered to support hotplug. On platforms
I've worked with, allowing the ahci_platform to suspend saves about
150mW. This patch enables rpm and allows the device to be auto-suspended
through sysfs.
Signed-off-by: Samuel Morris <samorris@lexmark.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
Diffstat (limited to 'include/linux')
| -rw-r--r-- | include/linux/ahci_platform.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/include/linux/ahci_platform.h b/include/linux/ahci_platform.h index 1b0a17b22cd3..6396e6982103 100644 --- a/include/linux/ahci_platform.h +++ b/include/linux/ahci_platform.h @@ -42,5 +42,7 @@ int ahci_platform_suspend_host(struct device *dev); int ahci_platform_resume_host(struct device *dev); int ahci_platform_suspend(struct device *dev); int ahci_platform_resume(struct device *dev); +int ahci_platform_runtime_suspend(struct device *dev); +int ahci_platform_runtime_resume(struct device *dev); #endif /* _AHCI_PLATFORM_H */ |