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

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Date:	Tue, 12 Jan 2016 15:37:47 -0600
From:	Nishanth Menon <nm@...com>
To:	"H. Nikolaus Schaller" <hns@...delico.com>,
	Tony Lindgren <tony@...mide.com>
CC:	Laxman Dewangan <ldewangan@...dia.com>,
	Benoît Cousson <bcousson@...libre.com>,
	Rob Herring <robh+dt@...nel.org>,
	Pawel Moll <pawel.moll@....com>,
	Mark Rutland <mark.rutland@....com>,
	Ian Campbell <ijc+devicetree@...lion.org.uk>,
	Kumar Gala <galak@...eaurora.org>,
	Russell King <linux@....linux.org.uk>,
	linux-omap <linux-omap@...r.kernel.org>,
	<devicetree@...r.kernel.org>, LKML <linux-kernel@...r.kernel.org>,
	Marek Belisko <marek@...delico.com>,
	Gražvydas Ignotas <notasas@...il.com>
Subject: Re: [PATCH 1/3] ARM: dts: omap5-board-common: enable rtc and charging
 of backup battery

On 01/12/2016 03:27 PM, H. Nikolaus Schaller wrote:
> Hi Tony,
> 
> Am 12.01.2016 um 14:30 schrieb H. Nikolaus Schaller <hns@...delico.com>:
> 
>> Hi Tony,
>>
>> Am 12.01.2016 um 01:09 schrieb Tony Lindgren <tony@...mide.com>:
>>
>>> * Tony Lindgren <tony@...mide.com> [160111 12:27]:
>>>>
>>>> OK so the issue is that the twl msecure pin should be high to enable
>>>> the RTC registers. We used to have that code with platform_data, but
>>>> no longer have it with device tree based booting. I'll send a patch
>>>> for that.
>>>>
>>>> Curiously setting jumper j5 on beagle-x15 that controls what used to
>>>> be the msecure and now is powerhold, does the opposite.. The
>>>> device boots automatically but RTC is stopped?
>>>
>>> And here's a fix the issue for omap5. Beagle-x15 needs to be
>>> investigated more.
>>>
>>> Care to test it with your RTC enabling patch?
>>
>> yes, I will test asap.
>>
>> Reminds me on some issues we did have with msecure and twl4030 rtc some years ago.
> 
> Ok, works for me on OMAP5432EVM.
> 
> Thanks for spotting the issue.
> 


http://pastebin.ubuntu.com/14480852/
Works for me as well ( https://patchwork.kernel.org/patch/7954341/ +
http://pastebin.ubuntu.com/14480852/)



-- 
Regards,
Nishanth Menon