linux-kernel - Re: [PATCH 1/1] ARM: dts: Add keep-power-in-suspend to WiFi SDIO nodefor Snow

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Date:	Sat, 09 May 2015 03:14:04 +0900
From:	Kukjin Kim <kgene@...nel.org>
To:	Krzysztof Kozlowski <k.kozlowski@...sung.com>
CC:	Doug Anderson <dianders@...omium.org>,
	Javier Martinez Canillas <javier.martinez@...labora.co.uk>,
	linux-samsung-soc <linux-samsung-soc@...r.kernel.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	Kukjin Kim <kgene@...nel.org>, Olof Johansson <olof@...om.net>,
	"linux-arm-kernel@...ts.infradead.org" 
	<linux-arm-kernel@...ts.infradead.org>
Subject: Re: [PATCH 1/1] ARM: dts: Add keep-power-in-suspend to WiFi SDIO
 nodefor Snow

On 05/08/15 09:09, Krzysztof Kozlowski wrote:
> 2015-05-07 1:36 GMT+09:00 Doug Anderson <dianders@...omium.org>:
>> Javier,
>>
>> On Wed, May 6, 2015 at 9:32 AM, Javier Martinez Canillas
>> <javier.martinez@...labora.co.uk> wrote:
>>> The Marvell mwifiex driver prevents the system to enter into a suspend
>>> state if the card power is not preserved during a suspend/resume cycle.
>>>
>>> So Suspend-to-RAM and Suspend-to-idle are failing on Exynos5250 Snow.
>>>
>>> Add the keep-power-in-suspend Power Management property to the SDIO/MMC
>>> node so the mwifiex suspend handler doesn't fail and the system is able
>>> to enter into a suspend state.
>>>
>>> Signed-off-by: Javier Martinez Canillas <javier.martinez@...labora.co.uk>
>>> ---
>>>
>>> Kukjin and Krzysztof,
>>>
>>> I didn't notice that Snow was also missing this property when I did the
>>> same change for Peach Pit and and Pi Chromebooks [0], sorry about that.
>>>
No problem and thanks for your effort.

>>> Best regards,
>>> Javier
>>>
>>> [0]: https://lkml.org/lkml/2015/4/7/377
>>> ---
>>>  arch/arm/boot/dts/exynos5250-snow.dts | 1 +
>>>  1 file changed, 1 insertion(+)
>>
>> Reviewed-by: Doug Anderson <dianders@...omium.org>
> 
Doug, thanks for your review.

> Thanks, applied to dts-fixes branch, I'll try to push it sooner than
> later but it depends on status of previous pull requests.
> 
Krzysztof, I've applied this into my tree directly.
Thanks for your gentle reminder and time.

- Kukjin
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