linux-kernel - Re: [PATCH 4/4] dt: binding: Add Qualcomm wcn36xx WiFi binding

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Message-ID: <20151229232751.GA664@rob-hp-laptop>
Date:	Tue, 29 Dec 2015 17:27:51 -0600
From:	Rob Herring <robh@...nel.org>
To:	Bjorn Andersson <bjorn@...o.se>
Cc:	Eugene Krasnikov <k.eugene.e@...il.com>,
	Ian Campbell <ijc+devicetree@...lion.org.uk>,
	Kalle Valo <kvalo@...eaurora.org>,
	Mark Rutland <mark.rutland@....com>,
	Pawel Moll <pawel.moll@....com>, devicetree@...r.kernel.org,
	fengwei.yin@...aro.org, linux-arm-msm@...r.kernel.org,
	linux-kernel@...r.kernel.org, linux-wireless@...r.kernel.org,
	netdev@...r.kernel.org, wcn36xx@...ts.infradead.org
Subject: Re: [PATCH 4/4] dt: binding: Add Qualcomm wcn36xx WiFi binding

On Tue, Dec 29, 2015 at 11:03:57AM -0800, Bjorn Andersson wrote:
> On Tue 29 Dec 10:34 PST 2015, Rob Herring wrote:
> 
> > On Sun, Dec 27, 2015 at 05:34:27PM -0800, Bjorn Andersson wrote:
> > > Add binding representing the Qualcomm wcn3620/60/80 WiFi block.
> > > Signed-off-by: Bjorn Andersson <bjorn.andersson@...ymobile.com>
> > > ---
> > >  .../bindings/net/wireless/qcom,wcn36xx-wifi.txt    | 76 ++++++++++++++++++++++
> > >  1 file changed, 76 insertions(+)
> > >  create mode 100644 Documentation/devicetree/bindings/net/wireless/qcom,wcn36xx-wifi.txt
> > > 
> > > diff --git a/Documentation/devicetree/bindings/net/wireless/qcom,wcn36xx-wifi.txt b/Documentation/devicetree/bindings/net/wireless/qcom,wcn36xx-wifi.txt
> > > new file mode 100644
> > > index 000000000000..7b314b9f30af
> > > --- /dev/null
> > > +++ b/Documentation/devicetree/bindings/net/wireless/qcom,wcn36xx-wifi.txt
> > > @@ -0,0 +1,76 @@
> > > +Qualcomm WCN36xx WiFi Binding
> > > +
> > > +This binding describes the Qualcomm WCN36xx WiFi hardware. The hardware block
> > > +is part of the Qualcomm WCNSS core, a WiFi/BT/FM combo chip, found in a variety
> > > +of Qualcomm platforms.
> > 
> > Are BT/FM functions completely separate? If so, separate bindings are 
> > okay. If not, then we need to describe the full chip.
> > 
> 
> It's three different hardware blocks (WiFi, BT and FM-radio) with shared
> RF-hardware and an ARM core for control logic.
> 
> There seems to be some control commands going towards the BT part that
> controls coexistence properties of the RF-hardware, but other than that
> I see it as logically separate blocks.
> 
> 
> So I think it's fine to model this as separate pieces in DT.

Okay.

Acked-by: Rob Herring <robh@...nel.org>
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