linux-kernel - Re: [PATCH v5 10/11] arch: arm: boot: dts: Introduce HPE GXP Device tree

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Date:   Sat, 23 Apr 2022 13:01:41 +0200
From:   Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
To:     nick.hawkins@....com, verdun@....com, joel@....id.au,
        arnd@...db.de, openbmc@...ts.ozlabs.org
Cc:     Olof Johansson <olof@...om.net>, soc@...nel.org,
        Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        linux-arm-kernel@...ts.infradead.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH v5 10/11] arch: arm: boot: dts: Introduce HPE GXP Device
 tree

On 21/04/2022 21:21, nick.hawkins@....com wrote:
> From: Nick Hawkins <nick.hawkins@....com>
> 

Thank you for your patch. There is something to discuss/improve.

> +/include/ "hpe-gxp.dtsi"
> +
> +/ {
> +	#address-cells = <1>;
> +	#size-cells = <1>;
> +	compatible = "hpe,gxp-dl360gen10","hpe,gxp";

Missing space after ','.

> +	model = "Hewlett Packard Enterprise ProLiant dl360 Gen10";
> +};
> diff --git a/arch/arm/boot/dts/hpe-gxp.dtsi b/arch/arm/boot/dts/hpe-gxp.dtsi
> new file mode 100644
> index 000000000000..a3a082d21101
> --- /dev/null
> +++ b/arch/arm/boot/dts/hpe-gxp.dtsi
> @@ -0,0 +1,128 @@
> +// SPDX-License-Identifier: GPL-2.0
> +/*
> + * Device Tree file for HPE GXP
> + */
> +
> +/dts-v1/;
> +/ {
> +	model = "Hewlett Packard Enterprise GXP BMC";
> +	compatible = "hpe,gxp","hpe,gxp-dl360gen10";

The same.

> +	#address-cells = <1>;
> +	#size-cells = <1>;
> +
> +	cpus {
> +		#address-cells = <1>;
> +		#size-cells = <0>;
> +
> +		cpu@0 {
> +			compatible = "arm,cortex-a9";
> +			reg = <0>;
> +			device_type = "cpu";
> +		};
> +	};
> +
> +	clocks {
> +

No need for blank line.

> +		pll: pll {

Generic node names, so either "clock-0" or "pll-clock"

> +			compatible = "fixed-clock";
> +			#clock-cells = <0>;
> +			clock-frequency = <1600000000>;
> +		};
> +
> +		iopclk: iopclk {

"clock-1" or "iop-clock"

> +			compatible = "fixed-factor-clock";
> +			#clock-cells = <0>;
> +			clock-div = <4>;
> +			clock-mult = <1>;
> +			clocks = <&pll>;
> +		};
> +	};

(...)

> +
> +			usb0: usb@...0000 {
> +				compatible = "hpe,gxp-ehci","generic-ehci";

Here and in other places - always missing a space.

> +				reg = <0xefe0000 0x100>;
> +				interrupts = <7>;
> +				interrupt-parent = <&vic0>;
> +			};
> +
> +			st: timer@80 {
> +				compatible = "hpe,gxp-timer","simple-mfd";
> +				reg = <0x80 0x16>;
> +				interrupts = <0>;
> +				interrupt-parent = <&vic0>;
> +				clocks = <&iopclk>;
> +				clock-names = "iopclk";
> +				watchdog {
> +					compatible = "hpe,gxp-wdt";
> +				};
> +			};
> +
> +			usb1: usb@...0100 {
> +				compatible = "hpe,gxp-ohci","generic-ohci";
> +				reg = <0xefe0100 0x110>;
> +				interrupts = <6>;
> +				interrupt-parent = <&vic0>;
> +			};
> +		};
> +	};
> +

No need for blank line.

> +};


Best regards,
Krzysztof