linux-kernel - Re: [PATCH RESEND v9 1/5] rtc: max77686: Allow the max77686 rtc to wakeup the system

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Message-ID: <CAD=FV=Vu3u=KfUNUpL6qcr0Fp42WbY8AqfOXyWr-D3KW1PucxA@mail.gmail.com>
Date:	Fri, 12 Sep 2014 08:12:04 -0700
From:	Doug Anderson <dianders@...omium.org>
To:	Javier Martinez Canillas <javier.martinez@...labora.co.uk>
Cc:	Andrew Morton <akpm@...ux-foundation.org>,
	Alessandro Zummo <a.zummo@...ertech.it>,
	Olof Johansson <olof@...om.net>,
	Krzysztof Kozlowski <k.kozlowski@...sung.com>,
	rtc-linux@...glegroups.com,
	linux-samsung-soc <linux-samsung-soc@...r.kernel.org>,
	"linux-arm-kernel@...ts.infradead.org" 
	<linux-arm-kernel@...ts.infradead.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH RESEND v9 1/5] rtc: max77686: Allow the max77686 rtc to
 wakeup the system

Hi,

On Fri, Sep 12, 2014 at 1:17 AM, Javier Martinez Canillas
<javier.martinez@...labora.co.uk> wrote:
> From: Doug Anderson <dianders@...omium.org>
>
> The max77686 includes an RTC that keeps power during suspend.  It's
> convenient to be able to use it as a wakeup source.
>
> NOTE: due to wakeup ordering problems this patch alone doesn't work so
> well on exynos5250-snow.  You also need something that brings the i2c
> bus up before the max77686 wakeup runs.

This note made sense when the patch was first submitted, but no longer
does since the i2c change landed.  See:

b19c195 i2c: s3c2410: resume the I2C controller earlier
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