Re: [REGRESSION] pinctrl, of, unable to find hogs

From	Gary Bisson <gary.bisson@boundarydevices.com>
Newsgroups	linux.kernel
Subject	Re: [REGRESSION] pinctrl, of, unable to find hogs
Date	2017-02-27 23:30 +0100
Message-ID	<tfBXQ-3Cf-13@gated-at.bofh.it> (permalink)
References	(1 earlier) <tfwv8-8at-27@gated-at.bofh.it> <tfwv8-8at-23@gated-at.bofh.it> <tfx7P-gn-9@gated-at.bofh.it> <tfyng-12S-9@gated-at.bofh.it> <tfBXQ-3Cf-15@gated-at.bofh.it>
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Hi Tony,

On Mon, Feb 27, 2017 at 10:45:35AM -0800, Tony Lindgren wrote:
> * Tony Lindgren <tony@atomide.com> [170227 09:37]:
> > * Gary Bisson <gary.bisson@boundarydevices.com> [170227 08:42]:
> > > > Not sure how to fix it though since we can't move the dt probing before
> > > > radix tree init.
> > 
> > Yup looks like we still have an issue with pinctrl driver functions
> > getting called before driver probe has completed.
> > 
> > How about we introduce something like:
> > 
> > int pinctrl_claim_hogs(struct pinctrl_dev *pctldev);
> > 
> > Then the drivers can call that at the end of the probe after
> > the pins have been parsed?
> > 
> > This should be safe as no other driver can claim the pins either
> > before the pins have been parsed :)
> 
> Below is an initial take on this solution. I've only briefly tested
> it so far but maybe give it a try and see if it helps.
> 
> I'll take a look if we can make the error handling better for
> pinctrl_register_and_init().

I'll try that tomorrow morning and let you know.

Regards,
Gary

Thread

Re: [REGRESSION] pinctrl, of, unable to find hogs Gary Bisson <gary.bisson@boundarydevices.com> - 2017-02-27 17:40 +0100
  Re: [REGRESSION] pinctrl, of, unable to find hogs Gary Bisson <gary.bisson@boundarydevices.com> - 2017-02-27 18:20 +0100
    Re: [REGRESSION] pinctrl, of, unable to find hogs Tony Lindgren <tony@atomide.com> - 2017-02-27 19:40 +0100
      Re: [REGRESSION] pinctrl, of, unable to find hogs Gary Bisson <gary.bisson@boundarydevices.com> - 2017-02-27 23:30 +0100
        Re: [REGRESSION] pinctrl, of, unable to find hogs Tony Lindgren <tony@atomide.com> - 2017-02-28 00:50 +0100
          Re: [REGRESSION] pinctrl, of, unable to find hogs Gary Bisson <gary.bisson@boundarydevices.com> - 2017-02-28 10:40 +0100
            Re: [REGRESSION] pinctrl, of, unable to find hogs Tony Lindgren <tony@atomide.com> - 2017-02-28 18:30 +0100
      Re: [REGRESSION] pinctrl, of, unable to find hogs Tony Lindgren <tony@atomide.com> - 2017-02-27 23:40 +0100

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