linux-kernel - Re: [PATCH v9 5/8] interconnect: qcom: Add RPM communication

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Message-ID: <20180925181735.GA28385@bogus>
Date:   Tue, 25 Sep 2018 13:17:35 -0500
From:   Rob Herring <robh@...nel.org>
To:     Georgi Djakov <georgi.djakov@...aro.org>
Cc:     linux-pm@...r.kernel.org, gregkh@...uxfoundation.org,
        rjw@...ysocki.net, mturquette@...libre.com, khilman@...libre.com,
        vincent.guittot@...aro.org, skannan@...eaurora.org,
        bjorn.andersson@...aro.org, amit.kucheria@...aro.org,
        seansw@....qualcomm.com, daidavid1@...eaurora.org,
        evgreen@...omium.org, mark.rutland@....com,
        lorenzo.pieralisi@....com, abailon@...libre.com,
        maxime.ripard@...tlin.com, arnd@...db.de,
        devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org, linux-arm-msm@...r.kernel.org
Subject: Re: [PATCH v9 5/8] interconnect: qcom: Add RPM communication

On Fri, Aug 31, 2018 at 05:01:48PM +0300, Georgi Djakov wrote:
> On some Qualcomm SoCs, there is a remote processor, which controls some of
> the Network-On-Chip interconnect resources. Other CPUs express their needs
> by communicating with this processor. Add a driver to handle communication
> with this remote processor.

I don't think you should have a binding nor a separate driver for this. 
It's not actually an interconnect provider, so it doesn't belong in 
bindings/interconnect. And it just looks like abuse of DT to instantiate 
some driver.

All the driver amounts to is a 1 function wrapper for RPM_KEY_BW 
messages. Can't this be part of the parent?

Rob