linux-kernel - Re: [1/2] RTC: Add core rtc support for Gemini Soc devices

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Message-ID: <alpine.LNX.2.00.1505071935100.19877@T520.local>
Date:	Thu, 7 May 2015 19:35:52 +0200 (CEST)
From:	Hans Ulli Kroll <ulli.kroll@...glemail.com>
To:	Roman Yeryomin <roman@...em.lv>
cc:	Arnd Bergmann <arnd@...db.de>,
	linux-arm-kernel@...ts.infradead.org,
	Alexandre Belloni <alexandre.belloni@...e-electrons.com>,
	Felix Fietkau <nbd@...nwrt.org>, rtc-linux@...glegroups.com,
	Linus Walleij <linus.walleij@...aro.org>,
	linux-kernel@...r.kernel.org,
	Russell King <rmk+kernel@....linux.org.uk>,
	Hans Ulli Kroll <ulli.kroll@...glemail.com>
Subject: Re: [1/2] RTC: Add core rtc support for Gemini Soc devices


Hi

On Thu, 7 May 2015, Roman Yeryomin wrote:

> On 2015-05-06 22:22, Arnd Bergmann wrote:
> > On Wednesday 06 May 2015 19:21:21 Roman Yeryomin wrote:
> > > 
> > > > Thanks to point that, I'll merge that one which seems clean enough:
> > > > http://git.openwrt.org/?p=openwrt.git;a=blob;f=target/linux/gemini/files/drivers/rtc/rtc-gemini.c;h=587d8122b2fbb1230437eadcce4789a53aa60ee5;hb=4c637410a2a1ab45988e8ca6202554a502102039
> > > 
> > > For 3.18 (and up) to work on gemini 160-gemini-timers.patch is vital.
> > > Without that timers are broken and cpu is super slow.
> > 
> > Do you know what part of the patch is the actual bug fix? We should probably
> > merge that separately and mark it for stable backports, while the bulk of
> > that
> > patch seems to just rearrange code.
> > 
> >  Arnd
> 
> Sorry, didn't try to extract the exact lines it but I guess it's that part
> which touches the scheduler clock code.
> Because without that patch sched clock runs at 100Hz instead of 25MHz.
> I can dive into this deeper if you want, I just didn't see the need.
> 
> Regards,
> Roman
> 
> 

I've send the RTC driver for Gemini SoC upstream-

Ulli 
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