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Date: Fri, 11 Sep 2026 09:32:17 +0200
From: Krzysztof Kozlowski <krzk@kernel.org>
To: Marek Vasut <marex@nabladev.com>
Cc: linux-arm-kernel@lists.infradead.org, 
	Conor Dooley <conor+dt@kernel.org>, Krzysztof Kozlowski <krzk+dt@kernel.org>, 
	Michal Simek <michal.simek@amd.com>, Rob Herring <robh@kernel.org>, devicetree@vger.kernel.org, 
	linux-kernel@vger.kernel.org
Subject: Re: [PATCH v2 2/2] arm64: zynqmp: Add ifm ZynqMP VHIP6 EvalBoard
Message-ID: <20260911-sweet-industrious-stallion-b7a727@quoll>
References: <20260909182641.165383-1-marex@nabladev.com>
 <20260909182641.165383-2-marex@nabladev.com>
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In-Reply-To: <20260909182641.165383-2-marex@nabladev.com>

On Wed, Sep 09, 2026 at 08:26:05PM +0200, Marek Vasut wrote:
> +
> +#include <dt-bindings/gpio/gpio.h>
> +#include <dt-bindings/interrupt-controller/irq.h>
> +#include <dt-bindings/phy/phy.h>
> +
> +#include "zynqmp.dtsi"
> +#include "zynqmp-clk-ccf.dtsi"
> +
> +/ {
> +	model = "ifm ZynqMP VHIP6 Evaluation Board";
> +	compatible = "ifm,zynqmp-vhip6-evalboard", "ifm,zynqmp-vhip6", "xlnx,zynqmp";
> +
> +	aliases {
> +		ethernet0 = &gem0;
> +		ethernet1 = &gem1;
> +		ethernet2 = &gem2;
> +		ethernet3 = &gem3;
> +		gpio0 = &gpio;
> +		i2c0 = &i2c0;
> +		i2c1 = &i2c1;
> +		rtc0 = &i2crtc;
> +		serial0 = &uart0;
> +		spi0 = &qspi;
> +		usb0 = &usb0;
> +		usb1 = &usb1;
> +	};
> +
> +	chosen {
> +		bootargs = "clk_ignore_unused";

You should not have such bootargs in mainline DTS. It ties DTS to
currecnt Linux driver implementation, not mentioning that it is
subjective choice. And once such bootargs appear, then they are tricky
to remove because users of DTS might rely on them.


Best regards,
Krzysztof