linux-kernel - Re: [PATCH 0/8] Armada 38x SDHCI driver improvements

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Date:	Thu, 8 Oct 2015 15:21:11 +0200
From:	Marcin Wojtas <mw@...ihalf.com>
To:	Gregory CLEMENT <gregory.clement@...e-electrons.com>
Cc:	linux-kernel@...r.kernel.org,
	"linux-arm-kernel@...ts.infradead.org" 
	<linux-arm-kernel@...ts.infradead.org>,
	"linux-mmc@...r.kernel.org" <linux-mmc@...r.kernel.org>,
	Ulf Hansson <ulf.hansson@...aro.org>,
	Sebastian Hesselbarth <sebastian.hesselbarth@...il.com>,
	Andrew Lunn <andrew@...n.ch>,
	Jason Cooper <jason@...edaemon.net>,
	Thomas Petazzoni <thomas.petazzoni@...e-electrons.com>,
	nadavh@...vell.com, Lior Amsalem <alior@...vell.com>,
	Tawfik Bayouk <tawfik@...vell.com>,
	Grzegorz Jaszczyk <jaz@...ihalf.com>
Subject: Re: [PATCH 0/8] Armada 38x SDHCI driver improvements

Hi Gregory,

I have an update about s2ram status - after adding suspend/resume
support to pinctrl driver rootfs on SDHCI card survived suspend/resume
sequence without any problem (with broken-cd software polling, I also
have GP < v1.5).

Best regards,
Marcin

2015-10-06 17:48 GMT+02:00 Marcin Wojtas <mw@...ihalf.com>:
> Gregory,
>
>>
>> Thanks for this series, it looks good I have only one or two comments.
>>
>> I also want to test it, how do you test the resume?
>> using standby or suspend to ram (by hacking the kernel as currently we
>> disbaled it) ?
>>
>
> Standby works even without the patch, as the registers' contents do
> not disappear. I added rejected s2ram support on top of 4.3-rc4 and
> used it. Today however I changed my card to another one and got -110
> error (timeout) - I have to re-check it. Anyway the patch is needed
> for sure, because without MBUS window configuration any access to the
> card ends up with a kernel hang.
>
> Best regards,
> Marcin
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