Re: [PATCH v1 4/4] arm64: dts: colibri-imx8x: delete adc1 and dsp

[Shawn Guo]

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@xxxxxxxxxxx>

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
>