linux-kernel - Re: [PATCHv6 2/2] ARM: dts: Add support for i.MX6 UltraLite DART Variscite Customboard

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Date:   Wed, 23 Oct 2019 18:11:32 +0200
From:   Oliver Graute <oliver.graute@...il.com>
To:     Shawn Guo <shawnguo@...nel.org>
Cc:     m.felsch@...gutronix.de, narmstrong@...libre.com,
        Rob Herring <robh+dt@...nel.org>,
        Mark Rutland <mark.rutland@....com>,
        Sascha Hauer <s.hauer@...gutronix.de>,
        Pengutronix Kernel Team <kernel@...gutronix.de>,
        Fabio Estevam <festevam@...il.com>,
        NXP Linux Team <linux-imx@....com>,
        devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org
Subject: Re: [PATCHv6 2/2] ARM: dts: Add support for i.MX6 UltraLite DART
 Variscite Customboard

On 14/10/19, Shawn Guo wrote:
> On Tue, Sep 24, 2019 at 06:20:21PM +0200, Oliver Graute wrote:
> > This patch adds DeviceTree Source for the i.MX6 UltraLite DART NAND/WIFI
> > 
> > Signed-off-by: Oliver Graute <oliver.graute@...il.com>
> > Cc: Shawn Guo <shawnguo@...nel.org>
> > Cc: Neil Armstrong <narmstrong@...libre.com>
> > Cc: Marco Felsch <m.felsch@...gutronix.de>
> > ---
> > Changelog:
> > v6:
> >  - added some muxing
> >  - added codec in sound node
> >  - added adc1 node
> > 
> >  arch/arm/boot/dts/Makefile                      |   1 +
> >  arch/arm/boot/dts/imx6ul-var-6ulcustomboard.dts | 221 ++++++++++++++++++++++++
> >  2 files changed, 222 insertions(+)
> >  create mode 100644 arch/arm/boot/dts/imx6ul-var-6ulcustomboard.dts
> > 
> > diff --git a/arch/arm/boot/dts/Makefile b/arch/arm/boot/dts/Makefile
> > index a24a6a1..a2a69e4 100644
> > --- a/arch/arm/boot/dts/Makefile
> > +++ b/arch/arm/boot/dts/Makefile
> > @@ -579,6 +579,7 @@ dtb-$(CONFIG_SOC_IMX6UL) += \
> >  	imx6ul-tx6ul-0010.dtb \
> >  	imx6ul-tx6ul-0011.dtb \
> >  	imx6ul-tx6ul-mainboard.dtb \
> > +	imx6ul-var-6ulcustomboard.dtb \
> >  	imx6ull-14x14-evk.dtb \
> >  	imx6ull-colibri-eval-v3.dtb \
> >  	imx6ull-colibri-wifi-eval-v3.dtb \
> > diff --git a/arch/arm/boot/dts/imx6ul-var-6ulcustomboard.dts b/arch/arm/boot/dts/imx6ul-var-6ulcustomboard.dts
> > new file mode 100644
> > index 00000000..031d8d4
> > --- /dev/null
> > +++ b/arch/arm/boot/dts/imx6ul-var-6ulcustomboard.dts
> > @@ -0,0 +1,221 @@
> > +// SPDX-License-Identifier: (GPL-2.0)
> > +/*
> > + * Support for Variscite DART-6UL Module
> > + *
> > + * Copyright (C) 2015 Freescale Semiconductor, Inc.
> > + * Copyright (C) 2015-2016 Variscite Ltd. - http://www.variscite.com
> > + * Copyright (C) 2018-2019 Oliver Graute <oliver.graute@...il.com>
> > + */
> > +
> > +/dts-v1/;
> > +
> > +#include <dt-bindings/input/input.h>
> > +#include "imx6ul-imx6ull-var-dart-common.dtsi"
> > +
> > +/ {
> > +	model = "Variscite i.MX6 UltraLite Carrier-board";
> > +	compatible = "variscite,6ulcustomboard", "fsl,imx6ul";
> 
> The compatible needs to be documented.

I'am not sure if I got this right. Is this the way to document it?
or is there more to do?

diff --git a/Documentation/devicetree/bindings/arm/fsl.yaml b/Documentation/devicetree/bindings/arm/fsl.yaml
index 41db01d..3ed497b 100644
--- a/Documentation/devicetree/bindings/arm/fsl.yaml
+++ b/Documentation/devicetree/bindings/arm/fsl.yaml
@@ -173,6 +173,7 @@ properties:
               - armadeus,imx6ul-opos6uldev # OPOS6UL (i.MX6UL) SoM on OPOS6ULDev board
               - fsl,imx6ul-14x14-evk      # i.MX6 UltraLite 14x14 EVK Board
               - kontron,imx6ul-n6310-som  # Kontron N6310 SOM
+              - variscite,6ulcustomboard" # i.MX UltraLite Carrier-board
           - const: fsl,imx6ul

Best Regards,

Oliver