linux-kernel - Re: [PATCH 1/1] Revert "ARM: dts: add display power domain for exynos5250"

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Date:	Thu, 30 Apr 2015 17:23:05 +0200
From:	Javier Martinez Canillas <javier.martinez@...labora.co.uk>
To:	Kevin Hilman <khilman@...nel.org>
CC:	Sjoerd Simons <sjoerd.simons@...labora.co.uk>,
	Kukjin Kim <kgene@...nel.org>, Olof Johansson <olof@...om.net>,
	Andreas Färber <afaerber@...e.de>,
	Marek Szyprowski <m.szyprowski@...sung.com>,
	Doug Anderson <dianders@...omium.org>,
	Andrzej Hajda <a.hajda@...sung.com>,
	linux-samsung-soc@...r.kernel.org,
	linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
	inki.dae@...sung.com
Subject: Re: [PATCH 1/1] Revert "ARM: dts: add display power domain for exynos5250"

Hello Kevin,

On 04/30/2015 04:59 PM, Kevin Hilman wrote:
> Javier Martinez Canillas <javier.martinez@...labora.co.uk> writes:
>>
>> The regression on Exynos5420/5422/5800 that has been for a while is fixed
>> by "ARM: dts: Make DP a consumer of DISP1 power domain on Exynos5420" [0]
>> which has been posted many weeks ago.
> 
> Thanks for clarifying.
> 
> I'm not sure how this worked for me.  Seems like sometimes, even with
> the imprecise aborts it does actually finish booting to a shell, so I
> must've gotten successful boot and thought it was because of this
> revert.

That is correct, the imprecise external abort error most of the times
lead to a kernel panic but sometimes it doesn't and the the system finish
booting to user-space even after the error.

I've pinged Kukjin again yesterday to pick the fix and he said that will
do it this weekend [0]. So hopefully exynos5420 machines will boot again
in linux-next soon after being broken for weeks.

> 
> Kevin
>

Best regards,
Javier

[0]: https://lkml.org/lkml/2015/4/29/781
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