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Date:	Tue, 6 Oct 2015 18:17:56 +0200
From:	Maxime Ripard <maxime.ripard@...e-electrons.com>
To:	Julian Calaby <julian.calaby@...il.com>
Cc:	"Mailing List, Arm" <linux-arm-kernel@...ts.infradead.org>,
	Chen-Yu Tsai <wens@...e.org>,
	Hans de Goede <hdegoede@...hat.com>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	linux-sunxi <linux-sunxi@...glegroups.com>
Subject: Re: [linux-sunxi] [PATCH v2 5/5] ARM: sun5i: Add C.H.I.P DTS

Hi,

On Tue, Oct 06, 2015 at 12:15:38PM +1100, Julian Calaby wrote:
> Hi Maxime,
> 
> On Tue, Oct 6, 2015 at 1:23 AM, Maxime Ripard
> <maxime.ripard@...e-electrons.com> wrote:
> > The C.H.I.P. is a small SBC with an Allwinner R8, 8GB of NAND, 512MB of
> > RAM, USB host and OTG, a wifi / bluetooth combo chip, an audio/video jack
> > and two connectors to plug additional boards on top of it.
> 
> Sorry for the late review, but a couple of minor things stuck out at me.

No problem :)

> > Signed-off-by: Maxime Ripard <maxime.ripard@...e-electrons.com>
> > Reviewed-by: Hans de Goede <hdegoede@...hat.com>
> > ---
> >  arch/arm/boot/dts/Makefile          |   3 +-
> >  arch/arm/boot/dts/sun5i-r8-chip.dts | 224 ++++++++++++++++++++++++++++++++++++
> >  2 files changed, 226 insertions(+), 1 deletion(-)
> >  create mode 100644 arch/arm/boot/dts/sun5i-r8-chip.dts
> >
> > diff --git a/arch/arm/boot/dts/Makefile b/arch/arm/boot/dts/Makefile
> > index c7adaa85ef3f..2cf7e593270a 100644
> > --- a/arch/arm/boot/dts/Makefile
> > +++ b/arch/arm/boot/dts/Makefile
> > @@ -600,7 +600,8 @@ dtb-$(CONFIG_MACH_SUN5I) += \
> >         sun5i-a13-olinuxino.dtb \
> >         sun5i-a13-olinuxino-micro.dtb \
> >         sun5i-a13-q8-tablet.dtb \
> > -       sun5i-a13-utoo-p66.dtb
> > +       sun5i-a13-utoo-p66.dtb \
> > +       sun5i-r8-chip.dtb
> >  dtb-$(CONFIG_MACH_SUN6I) += \
> >         sun6i-a31-app4-evb1.dtb \
> >         sun6i-a31-colombus.dtb \
> > diff --git a/arch/arm/boot/dts/sun5i-r8-chip.dts b/arch/arm/boot/dts/sun5i-r8-chip.dts
> > new file mode 100644
> > index 000000000000..08ff70601c79
> > --- /dev/null
> > +++ b/arch/arm/boot/dts/sun5i-r8-chip.dts
> > @@ -0,1 +1,224 @@
> > +/*
> > + * Copyright 2015 Free Electrons
> > + * Copyright 2015 NextThing Co
> > + *
> > + * Maxime Ripard <maxime.ripard@...e-electrons.com>
> > + *
> > + * This file is dual-licensed: you can use it either under the terms
> > + * of the GPL or the X11 license, at your option. Note that this dual
> > + * licensing only applies to this file, and not this project as a
> > + * whole.
> > + *
> > + *  a) This file is free software; you can redistribute it and/or
> > + *     modify it under the terms of the GNU General Public License as
> > + *     published by the Free Software Foundation; either version 2 of the
> > + *     License, or (at your option) any later version.
> > + *
> > + *     This file is distributed in the hope that it will be useful,
> > + *     but WITHOUT ANY WARRANTY; without even the implied warranty of
> > + *     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
> > + *     GNU General Public License for more details.
> > + *
> > + * Or, alternatively,
> > + *
> > + *  b) Permission is hereby granted, free of charge, to any person
> > + *     obtaining a copy of this software and associated documentation
> > + *     files (the "Software"), to deal in the Software without
> > + *     restriction, including without limitation the rights to use,
> > + *     copy, modify, merge, publish, distribute, sublicense, and/or
> > + *     sell copies of the Software, and to permit persons to whom the
> > + *     Software is furnished to do so, subject to the following
> > + *     conditions:
> > + *
> > + *     The above copyright notice and this permission notice shall be
> > + *     included in all copies or substantial portions of the Software.
> > + *
> > + *     THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
> > + *     EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
> > + *     OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
> > + *     NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
> > + *     HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
> > + *     WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
> > + *     FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
> > + *     OTHER DEALINGS IN THE SOFTWARE.
> > + */
> > +
> > +/dts-v1/;
> > +#include "sun5i-a13.dtsi"
> 
> Am I missing something or should this include "sun5i-r8.dtsi" instead?

Indeed.

> > +#include "sunxi-common-regulators.dtsi"
> > +
> > +#include <dt-bindings/gpio/gpio.h>
> > +#include <dt-bindings/interrupt-controller/irq.h>
> > +
> > +/ {
> > +       model = "NextThing C.H.I.P.";
> > +       compatible = "nextthing,chip", "allwinner,sun5i-r8";
> > +
> > +       aliases {
> > +               i2c0 = &i2c0;
> > +               i2c1 = &i2c1;
> > +               i2c2 = &i2c2;
> > +               serial0 = &uart1;
> > +               serial1 = &uart3;
> > +       };
> > +
> > +       chosen {
> > +               stdout-path = "serial0:115200n8";
> 
> Should the composite output be enabled here too?

AFAIK, the stdout-path only supports a single output device, and I
don't think it really is an issue since framebuffer console will
attach to the framebuffer automatically.

Maxime

-- 
Maxime Ripard, Free Electrons
Embedded Linux, Kernel and Android engineering
http://free-electrons.com

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