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Message-ID: <20231016134804.GA15778@pendragon.ideasonboard.com>
Date:   Mon, 16 Oct 2023 16:48:04 +0300
From:   Laurent Pinchart <laurent.pinchart@...asonboard.com>
To:     Bernhard Rosenkränzer <bero@...libre.com>
Cc:     linux-mediatek@...ts.infradead.org,
        linux-arm-kernel@...ts.infradead.org, linux-serial@...r.kernel.org,
        devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
        angelogioacchino.delregno@...labora.com, matthias.bgg@...il.com,
        gregkh@...uxfoundation.org, krzysztof.kozlowski+dt@...aro.org,
        robh+dt@...nel.org, maz@...nel.org, tglx@...utronix.de
Subject: Re: [PATCH v11 3/3] arm64: dts: mediatek: Initial mt8365-evk support

Hello,

A bit of a late reply, but I've just noticed an issue related to this
patch.

On Thu, Mar 09, 2023 at 10:35:01PM +0100, Bernhard Rosenkränzer wrote:
> From: Fabien Parent <fparent@...libre.com>
> 
> This adds minimal support for the Mediatek 8365 SOC and the EVK reference
> board, allowing the board to boot to initramfs with serial port I/O.
> 
> Signed-off-by: Fabien Parent <fparent@...libre.com>
> [bero@...libre.com: Removed parts depending on drivers that aren't upstream yet, cleanups, add CPU cache layout, add systimer, fix GIC]
> Signed-off-by: Bernhard Rosenkränzer <bero@...libre.com>
> [aouledameur@...libre.com: Fix systimer properties]
> Signed-off-by: Amjad Ouled-Ameur <aouledameur@...libre.com>
> Signed-off-by: Alexandre Mergnat <amergnat@...libre.com>
> Tested-by: Kevin Hilman <khilman@...libre.com>
> Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@...labora.com>
> ---
>  arch/arm64/boot/dts/mediatek/Makefile       |   1 +
>  arch/arm64/boot/dts/mediatek/mt8365-evk.dts | 168 +++++++++
>  arch/arm64/boot/dts/mediatek/mt8365.dtsi    | 377 ++++++++++++++++++++
>  3 files changed, 546 insertions(+)
>  create mode 100644 arch/arm64/boot/dts/mediatek/mt8365-evk.dts
>  create mode 100644 arch/arm64/boot/dts/mediatek/mt8365.dtsi

[snip]

> diff --git a/arch/arm64/boot/dts/mediatek/mt8365.dtsi b/arch/arm64/boot/dts/mediatek/mt8365.dtsi
> new file mode 100644
> index 0000000000000..351197c453c91
> --- /dev/null
> +++ b/arch/arm64/boot/dts/mediatek/mt8365.dtsi
> @@ -0,0 +1,377 @@
> +// SPDX-License-Identifier: (GPL-2.0 OR MIT)
> +/*
> + * (C) 2018 MediaTek Inc.
> + * Copyright (C) 2022 BayLibre SAS
> + * Fabien Parent <fparent@...libre.com>
> + * Bernhard Rosenkränzer <bero@...libre.com>
> + */
> +#include <dt-bindings/clock/mediatek,mt8365-clk.h>
> +#include <dt-bindings/interrupt-controller/arm-gic.h>
> +#include <dt-bindings/interrupt-controller/irq.h>
> +#include <dt-bindings/phy/phy.h>
> +
> +/ {

[snip]

> +	soc {

[snip]

> +		infracfg: syscon@...01000 {
> +			compatible = "mediatek,mt8365-infracfg", "syscon";
> +			reg = <0 0x10001000 0 0x1000>;
> +			#clock-cells = <1>;
> +		};

[snip]

> +		infracfg_nao: infracfg@...0e000 {
> +			compatible = "mediatek,mt8365-infracfg", "syscon";
> +			reg = <0 0x1020e000 0 0x1000>;
> +			#clock-cells = <1>;
> +		};

These two nodes cause the infracfg clocks to be registered twice, with
the second probe of the clk-mt8365 driver failing with -EEXIST.

[snip]

> +	};

[snip]

> +};

-- 
Regards,

Laurent Pinchart

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