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mailbox: Add device-managed registration functions

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Add device-managed equivalents of the mbox_controller_register() and
mbox_controller_unregister() functions that can be used to have the
devres infrastructure automatically unregister mailbox controllers on
driver probe failure or driver removal. This can help remove a lot of
boiler plate code from drivers.

Reviewed-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Reviewed-by: Sudeep Holla <sudeep.holla@arm.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
Signed-off-by: Jassi Brar <jaswinder.singh@linaro.org>
This commit is contained in:
Thierry Reding 2018-12-20 18:19:44 +01:00 • committed by Jassi Brar
parent e2affdbef2
commit e898d9cdd3
2 changed files with 75 additions and 0 deletions
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5
include/linux/mailbox_controller.h
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@ -131,4 +131,9 @@ void mbox_controller_unregister(struct mbox_controller *mbox); /* can sleep */
void mbox_chan_received_data(struct mbox_chan *chan, void *data); /* atomic */
void mbox_chan_txdone(struct mbox_chan *chan, int r); /* atomic */
int devm_mbox_controller_register(struct device *dev,
struct mbox_controller *mbox);
void devm_mbox_controller_unregister(struct device *dev,
struct mbox_controller *mbox);
#endif /* __MAILBOX_CONTROLLER_H */