Re: [PATCH v12 1/1] serial: core: Start managing serial controllers to enable runtime PM

[Tony Lindgren]

* Johan Hovold <johan@xxxxxxxxxx> [231004 07:14]:
> The pm_runtime_get_sync() in serdev_device_open() is supposed to prevent
> that from happening by default and if that now longer works, then that
> needs to be fixed.

No changes there, that all should work just as before.

What is broken is that the new serial port device can autosuspend while
the serdev device is active. This prevents serial tx in the suspend
path.

The serial port device and serdev device are siblings of the physical
serial port controller device as seen in the hierarcy printed out by
Maximilian.

Regards,

Tony