Messages in this thread | | | Date | Wed, 5 Aug 2015 23:26:56 -0700 | From | Tony Lindgren <> | Subject | Re: [PATCH 1/2] regulator: pbias: use untranslated address to program pbias regulator |
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* Kishon Vijay Abraham I <kishon@ti.com> [150805 07:59]: > Hi Tony, > > On Wednesday 05 August 2015 03:17 PM, Tony Lindgren wrote: > > * Kishon Vijay Abraham I <kishon@ti.com> [150727 04:27]: > >> vsel_reg and enable_reg of the pbias regulator descriptor should actually > >> have the offset from syscon. However after the pbias device tree node > >> is moved as a child node of syscon, vsel_reg and enable_reg has the > >> absolute address because of the address translation that happens while > >> creating device from device tree node. > >> So avoid using platform_get_resource and use of_get_address in order to > >> get only the offset (untranslated address) and populate these in > >> vsel_reg and enable_reg. > > > > I think this gets fixed automatically with your other series > > adding the "simple-bus" to the nodes. For the children of_ioremap > > Nope. The probe of pbias regulator fails as Grygorii has already pointed out > here [1].
Oh I see, you want the offset from syscon, not the virtual address of the register. Yeah then it makes sense to me. You could also get the offset by doing res->start & 0xff or something but I don't know if that's any better. I guess ideallly we'd have some syscon function to get the offest from the syscon base if it does not exist already.
Regards,
Tony
> [1] -> http://www.spinics.net/lists/linux-omap/msg120462.html
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