linux-kernel - Re: [PATCH v10 1/9] dt-bindings: phy: Add NVIDIA Tegra XUSB pad controller binding

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Message-ID: <20160307112418.GA11152@ulmo.nvidia.com>
Date:	Mon, 7 Mar 2016 12:24:18 +0100
From:	Thierry Reding <thierry.reding@...il.com>
To:	Rob Herring <robh@...nel.org>
Cc:	Kishon Vijay Abraham I <kishon@...com>,
	Linus Walleij <linus.walleij@...aro.org>,
	Stephen Warren <swarren@...dotorg.org>,
	Alexandre Courbot <gnurou@...il.com>,
	Andrew Bresticker <abrestic@...omium.org>,
	linux-tegra@...r.kernel.org, devicetree@...r.kernel.org,
	linux-usb@...r.kernel.org, linux-kernel@...r.kernel.org,
	Pawel Moll <pawel.moll@....com>,
	Mark Rutland <mark.rutland@....com>,
	Ian Campbell <ijc+devicetree@...lion.org.uk>,
	Kumar Gala <galak@...eaurora.org>
Subject: Re: [PATCH v10 1/9] dt-bindings: phy: Add NVIDIA Tegra XUSB pad
 controller binding

On Fri, Mar 04, 2016 at 10:31:45PM -0600, Rob Herring wrote:
> On Fri, Mar 04, 2016 at 05:19:31PM +0100, Thierry Reding wrote:
> > From: Thierry Reding <treding@...dia.com>
> > 
> > The NVIDIA Tegra XUSB pad controller provides a set of pads, each with a
> > set of lanes that are used for PCIe, SATA and USB.
> > 
> > Signed-off-by: Thierry Reding <treding@...dia.com>
> > ---
> > Changes in v10:
> > - clarify that the hardware documentation means something different when
> >   referring to a "port" (intra-SoC connectivity)
> > 
> > Changes in v9:
> > - rename UTMI -> USB2 to match hardware documentation
> > - reword according to suggestions by Stephen Warren
> > - make Tegra132 compatible string list consistent
> > - remove mailbox support
> > 
> >  .../bindings/phy/nvidia,tegra124-xusb-padctl.txt   | 376 +++++++++++++++++++++
> >  .../pinctrl/nvidia,tegra124-xusb-padctl.txt        |   5 +
> >  2 files changed, 381 insertions(+)
> >  create mode 100644 Documentation/devicetree/bindings/phy/nvidia,tegra124-xusb-padctl.txt
> 
> Without really understanding the h/w here, looks okay to me.
> 
> Acked-by: Rob Herring <robh@...nel.org>
> 
> > +SoC include:
> > +
> > +	padctl@0,7009f000 {
> 
> Drop the comma. Commas should only be used if there are distinct fields.
> 
> If I get my dtc patch done, these are going to start warning, so you 
> might want to go fix dts files (assuming that's where this is coming 
> from).

I noticed that in today's next the updated DTC already complains about a
lot of things in existing DTS files. For Tegra that's primarily the
memory node, because it has a reg property but no unit name. Any hints
as to how to solve that? I think I remember from way back that memory
was supposed to be an exception, perhaps DTC needs to be taught that?

Thierry

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