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

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Message-ID: <CAD=FV=XJXHjXxirjwPfrJ3=xOj46GTqdSxxFstzjTVJ9HP1Q=w@mail.gmail.com>
Date:	Wed, 6 May 2015 09:36:21 -0700
From:	Doug Anderson <dianders@...omium.org>
To:	Javier Martinez Canillas <javier.martinez@...labora.co.uk>
Cc:	Kukjin Kim <kgene@...nel.org>,
	Krzysztof Kozlowski <k.kozlowski@...sung.com>,
	Olof Johansson <olof@...om.net>,
	"linux-arm-kernel@...ts.infradead.org" 
	<linux-arm-kernel@...ts.infradead.org>,
	linux-samsung-soc <linux-samsung-soc@...r.kernel.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH 1/1] ARM: dts: Add keep-power-in-suspend to WiFi SDIO node
 for Snow

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.
>
> 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>
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