linux-kernel - Re: [PATCH v2 00/10] Exynos IOMMU: proper runtime PM support (use device dependencies)

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Date:	Mon, 18 Jul 2016 12:32:14 +0200
From:	Marek Szyprowski <m.szyprowski@...sung.com>
To:	Tobias Jakobi <tjakobi@...h.uni-bielefeld.de>,
	linux-pm@...r.kernel.org, linux-kernel@...r.kernel.org,
	iommu@...ts.linux-foundation.org,
	linux-samsung-soc@...r.kernel.org,
	linux-arm-kernel@...ts.infradead.org
Cc:	Joerg Roedel <joro@...tes.org>, Inki Dae <inki.dae@...sung.com>,
	Kukjin Kim <kgene@...nel.org>,
	Krzysztof Kozlowski <k.kozlowski@...sung.com>,
	Bartlomiej Zolnierkiewicz <b.zolnierkie@...sung.com>,
	"Rafael J. Wysocki" <rjw@...ysocki.net>,
	Ulf Hansson <ulf.hansson@...aro.org>,
	Mark Brown <broonie@...nel.org>,
	Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Subject: Re: [PATCH v2 00/10] Exynos IOMMU: proper runtime PM support (use
 device dependencies)

Hi Tobias,


On 2016-07-15 15:21, Tobias Jakobi wrote:
> Tobias Jakobi wrote:
>> Hello Marek,
>>
>> I've tested the patchset on 4.7-rc7 and noticed that it breaks reboot on
>> my ODROID-X2.
>>
>> Going to check where exactly things break.
> Sadly it's the last patch where everything comes together:
> "iommu/exynos: Add proper runtime pm support"
>
> I still have to check if forcing runpm status to 'on' makes a
> difference. I suspect that the aggressive clock gating might be the reason?

Thanks for testing. I will check this issue. Could you send me your .config?

Best regards
-- 
Marek Szyprowski, PhD
Samsung R&D Institute Poland