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Date:   Sun, 14 May 2023 11:05:25 +0800
From:   Shawn Guo <shawnguo@kernel.org>
To:     Andrejs Cainikovs <andrejs.cainikovs@gmail.com>
Cc:     linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org,
        devicetree@vger.kernel.org,
        Pengutronix Kernel Team <kernel@pengutronix.de>,
        Fabio Estevam <festevam@gmail.com>,
        NXP Linux Team <linux-imx@nxp.com>,
        Rob Herring <robh+dt@kernel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@linaro.org>,
        Sascha Hauer <s.hauer@pengutronix.de>,
        Marcel Ziswiler <marcel.ziswiler@toradex.com>,
        Emanuele Ghidoli <emanuele.ghidoli@toradex.com>,
        Francesco Dolcini <francesco.dolcini@toradex.com>,
        Andrejs Cainikovs <andrejs.cainikovs@toradex.com>
Subject: Re: [PATCH v1 4/4] arm64: dts: colibri-imx8x: delete adc1 and dsp
Message-ID: <20230514030525.GK727834@dragon>
References: <20230417173830.19401-1-andrejs.cainikovs@toradex.com>
 <20230417173830.19401-5-andrejs.cainikovs@toradex.com>
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On Mon, Apr 17, 2023 at 07:38:30PM +0200, Andrejs Cainikovs wrote:
> i.MX8, i.MX8X, i.MX8XP and i.MX8XL SOC device trees are all based on
> imx8-ss-*.dtsi files. For i.MX8X and i.MX8XP these device trees
> should be updated with some peripherals removed or updated, similar
> to i.MX8XL (imx8dxl-ss-*.dtsi files). However, it looks like only
> i.MX8 and i.MX8XL are up to date, but for i.MX8X and i.MX8XP some
> of the peripherals got inherited from imx8-ss-*.dtsi files, but in
> reality they are not present on SOC.
> As a result, during resource partition ownership check U-Boot receives
> messages from SCU firmware about these resources not owned by boot
> partition. In reality, these resources are not owned by anyone, as
> they simply does not exist, but are defined in Linux device tree.
> This change removes those peripherals, which are listed during
> U-Boot resource partition ownership check as warnings:
> 
>   ## Flattened Device Tree blob at 9d400000
>      Booting using the fdt blob at 0x9d400000
>      Loading Device Tree to 00000000fd652000, end 00000000fd67efff ... OK
>   Disable clock-controller@59580000 rsrc 512 not owned
>   Disable clock-controller@5ac90000 rsrc 102 not owned
> 
>   Starting kernel ...
> 
> Fixes: ba5a5615d54f ("arm64: dts: freescale: add initial support for colibri imx8x")
> 
> Signed-off-by: Andrejs Cainikovs <andrejs.cainikovs@toradex.com>

Applying of the patch will result in a different patch author and SoB email.

Shawn

> ---
>  arch/arm64/boot/dts/freescale/imx8x-colibri.dtsi | 7 +++++++
>  1 file changed, 7 insertions(+)
> 
> diff --git a/arch/arm64/boot/dts/freescale/imx8x-colibri.dtsi b/arch/arm64/boot/dts/freescale/imx8x-colibri.dtsi
> index b0d6f632622c..49d105eb4769 100644
> --- a/arch/arm64/boot/dts/freescale/imx8x-colibri.dtsi
> +++ b/arch/arm64/boot/dts/freescale/imx8x-colibri.dtsi
> @@ -769,3 +769,10 @@ pinctrl_wifi: wifigrp {
>  		fsl,pins = <IMX8QXP_SCU_BOOT_MODE3_SCU_DSC_RTC_CLOCK_OUTPUT_32K	0x20>;
>  	};
>  };
> +
> +/* Delete peripherals which are not present on SOC, but are defined in imx8-ss-*.dtsi */
> +
> +/delete-node/ &adc1;
> +/delete-node/ &adc1_lpcg;
> +/delete-node/ &dsp;
> +/delete-node/ &dsp_lpcg;
> -- 
> 2.34.1
>