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Message-ID: <20160919211850.GA11839@rob-hp-laptop>
Date: Mon, 19 Sep 2016 16:18:50 -0500
From: Rob Herring <robh@...nel.org>
To: Philipp Zabel <p.zabel@...gutronix.de>
Cc: Neil Armstrong <narmstrong@...libre.com>,
devicetree@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
linux-kernel@...r.kernel.org
Subject: Re: [PATCH 3/3] dt-bindings: reset: oxnas: Update for OX820
On Fri, Sep 09, 2016 at 03:35:53PM +0200, Philipp Zabel wrote:
> Hi Neil,
>
> Am Freitag, den 09.09.2016, 15:19 +0200 schrieb Neil Armstrong:
> > Add new compatible string for reset and sys-ctrl for the Oxford
> > Semiconductor OX820 Support.
> > Drop the OX810SE indices since they moved in a dedicated include file.
>
> Not sure if the OX820 reset controller should be considered "compatible"
> to OX810SE. The register layout and usage is the same, but the reset
> indices are different. Does this warrant a new compatible string, or
> should this be
> compatible = "oxsemi,ox820-reset", "oxsemi,ox810se-reset"?
Correct. Different connections are fine since the connections are
described in the DT. However you could have some connections not
described, so a new compatible may still be needed for that purpose (in
addition to other reasons you do a new compatible for new SoCs).
Rob
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