diff options
Diffstat (limited to 'Documentation/driver-api/device_link.rst')
| -rw-r--r-- | Documentation/driver-api/device_link.rst | 10 |
1 files changed, 3 insertions, 7 deletions
diff --git a/Documentation/driver-api/device_link.rst b/Documentation/driver-api/device_link.rst index bc2d89af88ce..76950d061632 100644 --- a/Documentation/driver-api/device_link.rst +++ b/Documentation/driver-api/device_link.rst @@ -1,7 +1,3 @@ -.. |struct dev_pm_domain| replace:: :c:type:`struct dev_pm_domain <dev_pm_domain>` -.. |struct generic_pm_domain| replace:: :c:type:`struct generic_pm_domain <generic_pm_domain>` - - .. _device_link: ============ @@ -166,7 +162,7 @@ Examples is the same as if the MMU was the parent of the master device. The fact that both devices share the same power domain would normally - suggest usage of a |struct dev_pm_domain| or |struct generic_pm_domain|, + suggest usage of a struct dev_pm_domain or struct generic_pm_domain, however these are not independent devices that happen to share a power switch, but rather the MMU device serves the busmaster device and is useless without it. A device link creates a synthetic hierarchical @@ -202,7 +198,7 @@ Examples Alternatives ============ -* A |struct dev_pm_domain| can be used to override the bus, +* A struct dev_pm_domain can be used to override the bus, class or device type callbacks. It is intended for devices sharing a single on/off switch, however it does not guarantee a specific suspend/resume ordering, this needs to be implemented separately. @@ -211,7 +207,7 @@ Alternatives suspended. Furthermore it cannot be used to enforce a specific shutdown ordering or a driver presence dependency. -* A |struct generic_pm_domain| is a lot more heavyweight than a +* A struct generic_pm_domain is a lot more heavyweight than a device link and does not allow for shutdown ordering or driver presence dependencies. It also cannot be used on ACPI systems. |