Re: [PATCH 1/3] ARM: dts: omap5-board-common: enable rtc and charging of backup battery

[Tony Lindgren]

* H. Nikolaus Schaller <hns@xxxxxxxxxxxxx> [160106 08:48]:
> Hi Tony,
> 
> Am 06.01.2016 um 17:41 schrieb Tony Lindgren <tony@xxxxxxxxxxx>:
> 
> > Hi,
> > 
> > * H. Nikolaus Schaller <hns@xxxxxxxxxxxxx> [160106 00:12]:
> >> Am 06.01.2016 um 02:00 schrieb Tony Lindgren <tony@xxxxxxxxxxx>:
> >>> 
> >>> Also I'm not seeing just zeroes coming from RTC after typing hwclock
> >>> on omap5-uevm. It's working on x15 though.
> >>> 
> >>> Nikolaus, is hwclock command working for you on omap5-uevm?
> >> 
> >> Well, yes and no. It appears it *was* working when tested last time
> >> (we sometimes have months of delay for submitting patches upstream).
> >> 
> >> I have found an SD image with 4.3-rc6 with this patch in the dtb and
> >> there it works. With 4.4-rc8 it does not work. hwclock command hangs for
> >> 10 seconds (I guess some timeout).
> >> 
> >> I have checked the dtb and in both cases it is interrupts = <8 0>;
> >> 
> >> xxd /sys/firmware/devicetree/base/ocp/i2c@48070000/palmas@48/rtc/interrupts
> >> 0000000: 0000 0008 0000 0000
> >> 
> >> So I think something has changed in the rtc driver or somewhere else.
> > 
> > I just gave it a try on v4.3-rc6 with omap5-uevm.dts patched for
> > RTC, and I still don't have hwclock working with RTC.
> > 
> > It seems you have some additional patches there that make it work?
> 
> Hm. Not that I am aware of. We just did add the rtc nodes but did not
> touch palmas drivers (except adding the gpadc of this patch series).

OK

> > I guess it could also be a bootloader change if it's a different
> > SD image that works for you.
> 
> Yes, it is using a 2 years old U-Boot instead 2015.10 compiled from
> source. I will try to find out if it makes a difference.

OK. It could be also some .config change with something built-in?

Regards,

Tony
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