Messages in this thread | | | Date | Sun, 28 Dec 2014 15:20:10 +0100 | From | Pavel Machek <> | Subject | Re: [PATCH 1/3] TTY: add support for "tty slave" devices. |
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Hi!
> index 8c4fd0332028..b59501ee2f21 100644 > --- a/Documentation/devicetree/bindings/serial/of-serial.txt > +++ b/Documentation/devicetree/bindings/serial/of-serial.txt > @@ -39,6 +39,10 @@ Optional properties: > driver is allowed to detect support for the capability even without this > property. > > +Optional child node: > +- a platform device listed as a child node will be probed and > + powered-on whenever the tty is in use (open). > + > Example: > > uart@80230000 {
Hmm. Other devices may want it the other way around: probe the device behind the uart, make it control power and open/close of the uart, and hide the /dev/ttyXX from userspace... Pavel
-- (english) http://www.livejournal.com/~pavelmachek (cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html
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