linux-kernel - Re: [PATCH 1/2] power: reset: Add qcom reboot mode driver

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Message-ID: <20161014131516.bkyi3tsx2nhqfyhm@earth>
Date:   Fri, 14 Oct 2016 15:15:16 +0200
From:   Sebastian Reichel <sre@...nel.org>
To:     xiaogang@...eaurora.org
Cc:     Andy Yan <andy.yan@...k-chips.com>, andy.gross@...aro.org,
        Dmitry Eremin-Solenikov <dbaryshkov@...il.com>,
        David Woodhouse <dwmw2@...radead.org>,
        Rob Herring <robh+dt@...nel.org>,
        Mark Rutland <mark.rutland@....com>,
        Krzysztof Kozlowski <krzk@...nel.org>,
        John Stultz <john.stultz@...aro.org>,
        Alexandre Belloni <alexandre.belloni@...e-electrons.com>,
        Nicolas Ferre <nicolas.ferre@...el.com>,
        Chris Brand <chris.brand@...adcom.com>,
        Richard Weinberger <richard@....at>,
        Moritz Fischer <moritz.fischer@...us.com>,
        Florian Fainelli <f.fainelli@...il.com>,
        "open list:POWER SUPPLY CLASS/SUBSYSTEM and DRIVERS" 
        <linux-pm@...r.kernel.org>,
        "open list:OPEN FIRMWARE AND FLATTENED DEVICE TREE BINDINGS" 
        <devicetree@...r.kernel.org>,
        open list <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH 1/2] power: reset: Add qcom reboot mode driver

Hi,

On Fri, Oct 14, 2016 at 11:06:14AM +0800, xiaogang@...eaurora.org wrote:
> 在 2016-10-14 10:41，Andy Yan 写道：
> > On 2016年10月14日 10:02, Xiaogang Cui wrote:
> > > This is a initial version so it's very similar with syscon
> > > reboot mode driver. We will add more functionalities in the
> > > further after dependency is ready.
> > > 
> > > Signed-off-by: Xiaogang Cui <xiaogang@...eaurora.org>
> > > ---
> > 
> > As your commit messages said, "it's very similar with syscon
> > reboot mode driver", so maybe we can try to reuse the syscon
> > reboot mode driver, and extend your new function on it.
> 
> Since it will heavily depend on Qualcomm qpnp and download mode
> driver. I prefer to add a new driver for this.

So use syscon driver until then. In its current state is more
or less a copy of syscon driver with s/syscon/qcom/g. I will
not queue that.

Just add a more specific compatible value in addition to the
syscon one:

compatible = "qcom,reboot-mode", "syscon-reboot-mode";

Then syscon driver is used and if something more complex
is required later we can easily switch to it.

-- Sebastian

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