linux-kernel - Re: [PATCH 10/10] arm64: dts: imx8mm: Add Engicam i.Core MX8M Mini C.TOUCH 2.0 10.1" OF

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Message-ID: <20201202174935.GA4413@kozik-lap>
Date:   Wed, 2 Dec 2020 19:49:35 +0200
From:   Krzysztof Kozlowski <krzk@...nel.org>
To:     Jagan Teki <jagan@...rulasolutions.com>
Cc:     Rob Herring <robh+dt@...nel.org>, Shawn Guo <shawnguo@...nel.org>,
        Li Yang <leoyang.li@....com>,
        Fabio Estevam <festevam@...il.com>,
        Matteo Lisi <matteo.lisi@...icam.com>,
        devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org,
        NXP Linux Team <linux-imx@....com>,
        linux-amarula@...rulasolutions.com
Subject: Re: [PATCH 10/10] arm64: dts: imx8mm: Add Engicam i.Core MX8M Mini
 C.TOUCH 2.0 10.1" OF

On Wed, Dec 02, 2020 at 05:42:41PM +0530, Jagan Teki wrote:
> i.Core MX8M Mini is an EDIMM SOM based on NXP i.MX8MM from Engicam.
> 
> C.TOUCH 2.0 is a general purpose carrier board with capacitive
> touch interface support.
> 
> 10.1" OF is a capacitive touch 10.1" Open Frame panel solutions.
> 
> i.Core MX8M Mini needs to mount on top of C.TOUCH 2.0 carrier with
> pluged 10.1" OF for creating complete i.Core MX8M Mini C.TOUCH 2.0
> 10.1" Open Frame solution board.
> 
> Add support for it.
> 
> Signed-off-by: Matteo Lisi <matteo.lisi@...icam.com>
> Signed-off-by: Jagan Teki <jagan@...rulasolutions.com>
> ---
>  arch/arm64/boot/dts/freescale/Makefile        |  1 +
>  ...mx8mm-engicam-icore-mx8mm-ctouch2-of10.dts | 21 +++++++++++++++++++
>  2 files changed, 22 insertions(+)
>  create mode 100644 arch/arm64/boot/dts/freescale/imx8mm-engicam-icore-mx8mm-ctouch2-of10.dts
> 
> diff --git a/arch/arm64/boot/dts/freescale/Makefile b/arch/arm64/boot/dts/freescale/Makefile
> index 8191db4c64fa..9725bbc0f268 100644
> --- a/arch/arm64/boot/dts/freescale/Makefile
> +++ b/arch/arm64/boot/dts/freescale/Makefile
> @@ -31,6 +31,7 @@ dtb-$(CONFIG_ARCH_LAYERSCAPE) += fsl-lx2162a-qds.dtb
>  
>  dtb-$(CONFIG_ARCH_MXC) += imx8mm-beacon-kit.dtb
>  dtb-$(CONFIG_ARCH_MXC) += imx8mm-engicam-icore-mx8mm-ctouch2.dtb
> +dtb-$(CONFIG_ARCH_MXC) += imx8mm-engicam-icore-mx8mm-ctouch2-of10.dtb
>  dtb-$(CONFIG_ARCH_MXC) += imx8mm-engicam-icore-mx8mm-edimm2.2.dtb
>  dtb-$(CONFIG_ARCH_MXC) += imx8mm-evk.dtb
>  dtb-$(CONFIG_ARCH_MXC) += imx8mm-ddr4-evk.dtb
> diff --git a/arch/arm64/boot/dts/freescale/imx8mm-engicam-icore-mx8mm-ctouch2-of10.dts b/arch/arm64/boot/dts/freescale/imx8mm-engicam-icore-mx8mm-ctouch2-of10.dts
> new file mode 100644
> index 000000000000..0124ba5ec69c
> --- /dev/null
> +++ b/arch/arm64/boot/dts/freescale/imx8mm-engicam-icore-mx8mm-ctouch2-of10.dts
> @@ -0,0 +1,21 @@
> +// SPDX-License-Identifier: (GPL-2.0+ OR MIT)
> +/*
> + * Copyright (c) 2019 NXP
> + * Copyright (c) 2019 Engicam srl
> + * Copyright (c) 2020 Amarula Solutions(India)
> + */
> +
> +/dts-v1/;
> +#include "imx8mm.dtsi"
> +#include "imx8mm-engicam-ctouch2.dtsi"
> +#include "imx8mm-engicam-icore-mx8mm.dtsi"
> +
> +/ {
> +	model = "Engicam i.Core MX8M Mini C.TOUCH 2.0 10.1\" Open Frame";
> +	compatible = "engicam,icore-mx8mm-ctouch2-of10", "engicam,icore-mx8mm",
> +		     "fsl,imx8mm";

No. You created 3 DTS and 3 DTSI which are all the same. The output DTB
is probably the same for all three DTS files. Only one DTSI has anything
inside, all others are just copy paste.

Best regards,
Krzysztof