linux-kernel - Re: [PATCH 2/2] Input: pm8941-pwrkey: Introduce reboot mode support

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Date:   Thu, 8 Jun 2017 18:32:43 +0200
From:   Sebastian Reichel <sebastian.reichel@...labora.co.uk>
To:     Bjorn Andersson <bjorn.andersson@...aro.org>
Cc:     Dmitry Torokhov <dmitry.torokhov@...il.com>,
        Rob Herring <robh@...nel.org>,
        John Stultz <john.stultz@...aro.org>,
        linux-input@...r.kernel.org, linux-kernel@...r.kernel.org,
        linux-arm-msm@...r.kernel.org, linux-pm@...r.kernel.org
Subject: Re: [PATCH 2/2] Input: pm8941-pwrkey: Introduce reboot mode support

Hi,

On Mon, May 29, 2017 at 09:47:11PM -0700, Bjorn Andersson wrote:
> On Mon 29 May 19:53 PDT 2017, Dmitry Torokhov wrote:
> 
> > On Fri, May 26, 2017 at 11:51:30PM -0700, Bjorn Andersson wrote:
> > > In some Qualcomm platforms the magic for informing LK which mode to
> > > reboot into is stored in the PON_SOFT_RB_SPARE register. Register with
> > > the reboot mode helpers to expose this to the user.
> > 
> > Hmm, is the power key driver the best place to have this? WHy isn't this
> > a driver in its own right?
> > 
> 
> The functionality is part of the "PON" block in the Qualcomm PMICs,
> other functionality from this block relates to configuration and
> handling related to power-key and reset-key.
> 
> Several of these properties are intermingled, so I do believe it's best
> to handle them in a single driver; that said, it might no longer be
> correct to name the driver "pwrkey" or that it is a "misc input" driver.

I merged patch 1 and provided an immutable branch, so
that this could go through the input subsystem.

To me it doesn't look that intermingled, though. I think
the reboot and reboot-mode parts could go into their own
driver in drivers/power/reset.

-- Sebastian

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