Messages in this thread | | | Date | Thu, 31 May 2018 15:37:30 +0200 | From | Johan Hovold <> | Subject | Re: [PATCH v2 0/8] gnss: add new GNSS subsystem |
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On Thu, May 31, 2018 at 03:33:41PM +0200, H. Nikolaus Schaller wrote: > > Am 31.05.2018 um 13:47 schrieb Johan Hovold <johan@kernel.org>:
> > Using pps-gpio would not allow you to describe the hardware properly, > > something which, for example, may be needed for power management (e.g. > > to power on the GNSS receiver when the pps device is being accessed). > > Yes, that is indeed a very valid reason to do it that way as the pps-gpio > seems to assume an always-on impulse source. > > On the other hand it looks as if the pps framework can't tell the > source when to power on/off because it does not notify when it > is being accessed or not: > > https://elixir.bootlin.com/linux/v4.17-rc7/source/drivers/pps/pps.c#L305
Yeah, we may need to address that when/if we get there.
Thanks, Johan
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