linux-kernel - Re: [RESEND PATCH] ARM: EXYNOS: Fix failed second suspend on Exynos4

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Message-id: <1424764762.2877.3.camel@AMDC1943>
Date:	Tue, 24 Feb 2015 08:59:22 +0100
From:	Krzysztof Kozlowski <k.kozlowski@...sung.com>
To:	Chanwoo Choi <cw00.choi@...sung.com>
Cc:	Kukjin Kim <kgene@...nel.org>,
	linux-arm-kernel@...ts.infradead.org,
	linux-samsung-soc@...r.kernel.org, linux-kernel@...r.kernel.org,
	Kyungmin Park <kyungmin.park@...sung.com>,
	Marek Szyprowski <m.szyprowski@...sung.com>,
	stable@...r.kernel.org
Subject: Re: [RESEND PATCH] ARM: EXYNOS: Fix failed second suspend on Exynos4

On wto, 2015-02-24 at 11:38 +0900, Chanwoo Choi wrote:
> Hi Krzysztof,
> 
> I tested this patch for suspend-to-ram on Exynos4412-based trats2 board.
> When I tested suspend-to-ram repetitively, I faced on hang issue of
> suspend-to-ram for Exynos4 as before.
> 
> Could you send .config file for test?

I am testing on exynos_defconfig with some stuff enabled (nothing
special: regulators, chargers, PM_ADVANCED_DEBUG, extcon etc.). However
sometimes I also see hangs related to MMC. But I believe this issue is
present for some time and is not related to my DELAYED_RESET_ASSERTION
changes.

Maybe you could try to boot with "no_console_suspend loglevel=7" and see
when the suspend fails?

Best regards,
Krzysztof


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