Messages in this thread | | | Date | Tue, 18 Feb 2014 09:47:27 -0800 | From | Greg Kroah-Hartman <> | Subject | Re: [PATCH] w1-gpio: handle of_get_gpio() returning -EPROBE_DEFER better |
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On Tue, Feb 18, 2014 at 06:34:07PM +0400, Evgeniy Polyakov wrote: > Hi > > 18.02.2014, 12:24, "Uwe Kleine-König" <u.kleine-koenig@pengutronix.de>: > > > The thing is that the w1-gpio device might be probed before the gpio's > > controller is available. In this case of_get_gpio returns -EPROBE_DEFER > > and this makes the device core retry probing the w1-gpio device later > > again. So this is not a dt-parsing problem but just dependency stuff. > > > > The 2nd issue addressed didn't happen to me, but it might occur that the > > first of_get_gpio for the data pin succeeds, but the getting the pullup > > gpio fails with -EPROBE_DEFER (e.g. because it sits on a different > > controller). In this case you still want to retry probing later instead > > of ignoring the problem. > > > > Does that make it clearer? > > Well, yes, thank you :) > > Greg, please pull this patch into your tree.
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