linux-kernel - Re: [PATCH v1 18/19] arm64: dts: nuvoton: Add initial NPCM845 EVB device tree

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Date:   Mon, 23 May 2022 11:26:27 +0200
From:   Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
To:     Tomer Maimon <tmaimon77@...il.com>, avifishman70@...il.com,
        tali.perry1@...il.com, joel@....id.au, venture@...gle.com,
        yuenn@...gle.com, benjaminfair@...gle.com, robh+dt@...nel.org,
        krzysztof.kozlowski+dt@...aro.org, mturquette@...libre.com,
        sboyd@...nel.org, p.zabel@...gutronix.de,
        gregkh@...uxfoundation.org, daniel.lezcano@...aro.org,
        tglx@...utronix.de, wim@...ux-watchdog.org, linux@...ck-us.net,
        catalin.marinas@....com, will@...nel.org, arnd@...db.de,
        olof@...om.net, jirislaby@...nel.org, shawnguo@...nel.org,
        bjorn.andersson@...aro.org, geert+renesas@...der.be,
        marcel.ziswiler@...adex.com, vkoul@...nel.org,
        biju.das.jz@...renesas.com, nobuhiro1.iwamatsu@...hiba.co.jp,
        robert.hancock@...ian.com, j.neuschaefer@....net, lkundrak@...sk
Cc:     soc@...nel.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org, linux-clk@...r.kernel.org,
        linux-serial@...r.kernel.org, linux-watchdog@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org
Subject: Re: [PATCH v1 18/19] arm64: dts: nuvoton: Add initial NPCM845 EVB
 device tree

On 22/05/2022 17:50, Tomer Maimon wrote:
> Add initial Nuvoton NPCM845 evaluation board device tree.
> 
> Signed-off-by: Tomer Maimon <tmaimon77@...il.com>
> ---
>  arch/arm64/boot/dts/nuvoton/Makefile          |  2 +
>  .../boot/dts/nuvoton/nuvoton-npcm845-evb.dts  | 50 +++++++++++++++++++
>  2 files changed, 52 insertions(+)
>  create mode 100644 arch/arm64/boot/dts/nuvoton/Makefile
>  create mode 100644 arch/arm64/boot/dts/nuvoton/nuvoton-npcm845-evb.dts
> 
> diff --git a/arch/arm64/boot/dts/nuvoton/Makefile b/arch/arm64/boot/dts/nuvoton/Makefile
> new file mode 100644
> index 000000000000..a99dab90472a
> --- /dev/null
> +++ b/arch/arm64/boot/dts/nuvoton/Makefile
> @@ -0,0 +1,2 @@
> +# SPDX-License-Identifier: GPL-2.0
> +dtb-$(CONFIG_ARCH_NPCM) += nuvoton-npcm845-evb.dtb
> diff --git a/arch/arm64/boot/dts/nuvoton/nuvoton-npcm845-evb.dts b/arch/arm64/boot/dts/nuvoton/nuvoton-npcm845-evb.dts
> new file mode 100644
> index 000000000000..d7a9a85f8075
> --- /dev/null
> +++ b/arch/arm64/boot/dts/nuvoton/nuvoton-npcm845-evb.dts
> @@ -0,0 +1,50 @@
> +// SPDX-License-Identifier: GPL-2.0
> +// Copyright (c) 2021 Nuvoton Technology tomer.maimon@...oton.com
> +
> +/dts-v1/;
> +#include "nuvoton-npcm845.dtsi"
> +
> +/ {
> +	model = "Nuvoton npcm845 Development Board (Device Tree)";

s/ (Device Tree)//

> +	compatible = "nuvoton,npcm845";

This does not match your bindings. Please test your DTS with `make
dtbs_check`.

> +
> +	aliases {
> +		serial0 = &serial0;
> +		serial1 = &serial1;
> +		serial2 = &serial2;
> +		serial3 = &serial3;
> +	};
> +
> +	chosen {
> +		stdout-path = &serial0;
> +	};
> +
> +	memory {
> +		reg = <0x0 0x0 0x0 0x40000000>;
> +	};
> +
> +	ahb {
> +

No need for blank line.

> +		apb {
> +			serial0: serial@0 {
> +				status = "okay";

No, override by labels. Here and in places below.

> +			};
> +
> +			serial1: serial@...0 {
> +				status = "disabled";
> +			};
> +
> +			serial2: serial@...0 {
> +				status = "disabled";
> +			};
> +
> +			serial3: serial@...0 {
> +				status = "disabled";
> +			};
> +
> +			watchdog1: watchdog@...c {
> +				status = "okay";
> +			};
> +		};
> +	};
> +};


Best regards,
Krzysztof