linux-kernel - Re: [PATCH v2 1/3] usb: chipidea: msm: Add device tree binding information

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Date:	Wed, 19 Feb 2014 17:43:22 +0200
From:	"Ivan T. Ivanov" <iivanov@...sol.com>
To:	Courtney Cavin <courtney.cavin@...ymobile.com>
Cc:	Rob Herring <robh+dt@...nel.org>, Pawel Moll <pawel.moll@....com>,
	Mark Rutland <mark.rutland@....com>,
	Ian Campbell <ijc+devicetree@...lion.org.uk>,
	Kumar Gala <galak@...eaurora.org>,
	Rob Landley <rob@...dley.net>,
	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	David Brown <davidb@...eaurora.org>,
	"devicetree@...r.kernel.org" <devicetree@...r.kernel.org>,
	"linux-doc@...r.kernel.org" <linux-doc@...r.kernel.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	"linux-arm-msm@...r.kernel.org" <linux-arm-msm@...r.kernel.org>
Subject: Re: [PATCH v2 1/3] usb: chipidea: msm: Add device tree binding
 information


Hi, 

On Tue, 2014-02-18 at 13:26 -0800, Courtney Cavin wrote: 
> On Tue, Feb 18, 2014 at 02:21:19PM +0100, Ivan T. Ivanov wrote:
> > From: "Ivan T. Ivanov" <iivanov@...sol.com>
> > 
> > Document device tree binding information as required by
> > the Qualcomm USB controller.
> > 
> > Signed-off-by: Ivan T. Ivanov <iivanov@...sol.com>
> > ---
> >  .../devicetree/bindings/usb/msm-hsusb.txt          |   17 +++++++++++++++++
> 
> Although you mentioned to Josh that this is intended for "non-standard"
> Chipidea properties, I don't see any other than requiring that 'dr_mode'
> must be "peripheral".  It would seem that this should all be integrated
> into a ci3xxx.txt.

Hm, there is no ci3xxx.txt. The closest match is ci-hdrc-imx.txt.
So it could be ci-hdrc-qcom.txt or my preferred name qcom,ci-hdrc.txt?

> > +CI13xxx (Chipidea) USB controllers
> > +
> > +Required properties:
> > +- compatible:   should contain "qcom,ci-hdrc"
> 
> Is there nothing more specific you could put here?  Maybe a hardware
> revision, or something?
> 

I am not aware of any version numbers here, sorry.


> > +- reg:          offset and length of the register set in the memory map
> > +- interrupts:   interrupt-specifier for the controller interrupt.
> > +- usb-phy:      phandle for the PHY device
> > +- dr_mode:      Sould be "peripheral"
> 
> s/Sould/should/

Thanks, 
Ivan

> 
> -Courtney


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