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| author |   José Pekkarinen <jose.pekkarinen@nokia.com> | 2016-04-11 10:41:07 +0300 |
|---|---|---|
| committer | José Pekkarinen <jose.pekkarinen@nokia.com> | 2016-04-13 08:17:18 +0300 |
| commit | e09b41010ba33a20a87472ee821fa407a5b8da36 (patch) | |
| tree | d10dc367189862e7ca5c592f033dc3726e1df4e3 /kernel/Documentation/driver-model | |
| parent | f93b97fd65072de626c074dbe099a1fff05ce060 (diff) | |
These changes are the raw update to linux-4.4.6-rt14. Kernel sources
are taken from kernel.org, and rt patch from the rt wiki download page.
During the rebasing, the following patch collided:
Force tick interrupt and get rid of softirq magic(I70131fb85).
Collisions have been removed because its logic was found on the
source already.
Change-Id: I7f57a4081d9deaa0d9ccfc41a6c8daccdee3b769
Signed-off-by: José Pekkarinen <jose.pekkarinen@nokia.com>
Diffstat (limited to 'kernel/Documentation/driver-model')
| -rw-r--r-- | kernel/Documentation/driver-model/platform.txt | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/kernel/Documentation/driver-model/platform.txt b/kernel/Documentation/driver-model/platform.txt index 07795ec51..e456696cf 100644 --- a/kernel/Documentation/driver-model/platform.txt +++ b/kernel/Documentation/driver-model/platform.txt @@ -63,6 +63,20 @@ runtime memory footprint: int platform_driver_probe(struct platform_driver *drv, int (*probe)(struct platform_device *)) +Kernel modules can be composed of several platform drivers. The platform core +provides helpers to register and unregister an array of drivers: + + int __platform_register_drivers(struct platform_driver * const *drivers, + unsigned int count, struct module *owner); + void platform_unregister_drivers(struct platform_driver * const *drivers, + unsigned int count); + +If one of the drivers fails to register, all drivers registered up to that +point will be unregistered in reverse order. Note that there is a convenience +macro that passes THIS_MODULE as owner parameter: + + #define platform_register_driver(drivers, count) + Device Enumeration ~~~~~~~~~~~~~~~~~~ |