Re: [PATCH 1/3] ARM: dts: omap5-board-common: enable rtc and charging of backup battery
From: Tony Lindgren <hidden>
Date: 2016-01-06 17:09:33
Also in:
linux-omap, lkml
* H. Nikolaus Schaller [off-list ref] [160106 08:48]:
Hi Tony, Am 06.01.2016 um 17:41 schrieb Tony Lindgren [off-list ref]:quoted
Hi, * H. Nikolaus Schaller [off-list ref] [160106 00:12]:quoted
Am 06.01.2016 um 02:00 schrieb Tony Lindgren [off-list ref]:quoted
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
quoted
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 -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo-u79uwXL29TY76Z2rM5mHXA@public.gmane.org More majordomo info at http://vger.kernel.org/majordomo-info.html