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Commit b4cdaf32 authored by Wolfram Sang's avatar Wolfram Sang
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Documentation: i2c: slave: give proper example for pm usage 



pm_runtime_forbid was the wrong knob, this is the better one.

Signed-off-by: default avatarWolfram Sang <wsa@the-dreams.de>
parent 38fa8aff

Documentation/i2c/slave-interface

+3 −3
Original line number Diff line number Diff line
@@ -139,9 +139,9 @@ If you want to add slave support to the bus driver: 
* implement calls to register/unregister the slave and add those to the

  struct i2c_algorithm. When registering, you probably need to set the i2c

  slave address and enable slave specific interrupts. If you use runtime pm, you

  should use pm_runtime_forbid() because your device usually needs to be powered

  on always to be able to detect its slave address. When unregistering, do the

  inverse of the above.

  should use pm_runtime_get_sync() because your device usually needs to be

  powered on always to be able to detect its slave address. When unregistering,

  do the inverse of the above.



* Catch the slave interrupts and send appropriate i2c_slave_events to the backend.