Re: [PATCH v5 10/15] arm64: dts: Add AMD Pensando Elba SoC support

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On 13/06/2022 12:56, Brad Larson wrote:
> From: Brad Larson <blarson@xxxxxxx>
> 
> Add AMD Pensando common and Elba SoC specific device nodes
> 
> Signed-off-by: Brad Larson <blarson@xxxxxxx>

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

> ---
>  arch/arm64/boot/dts/amd/Makefile              |   1 +
>  arch/arm64/boot/dts/amd/elba-16core.dtsi      | 189 +++++++++++++++++
>  arch/arm64/boot/dts/amd/elba-asic-common.dtsi | 103 ++++++++++
>  arch/arm64/boot/dts/amd/elba-asic.dts         |  28 +++
>  arch/arm64/boot/dts/amd/elba-flash-parts.dtsi | 106 ++++++++++
>  arch/arm64/boot/dts/amd/elba.dtsi             | 191 ++++++++++++++++++
>  6 files changed, 618 insertions(+)
>  create mode 100644 arch/arm64/boot/dts/amd/elba-16core.dtsi
>  create mode 100644 arch/arm64/boot/dts/amd/elba-asic-common.dtsi
>  create mode 100644 arch/arm64/boot/dts/amd/elba-asic.dts
>  create mode 100644 arch/arm64/boot/dts/amd/elba-flash-parts.dtsi
>  create mode 100644 arch/arm64/boot/dts/amd/elba.dtsi
> 
> diff --git a/arch/arm64/boot/dts/amd/Makefile b/arch/arm64/boot/dts/amd/Makefile
> index 68103a8b0ef5..9bba020fa880 100644
> --- a/arch/arm64/boot/dts/amd/Makefile
> +++ b/arch/arm64/boot/dts/amd/Makefile
> @@ -1,2 +1,3 @@
>  # SPDX-License-Identifier: GPL-2.0
>  dtb-$(CONFIG_ARCH_SEATTLE) += amd-overdrive-rev-b0.dtb amd-overdrive-rev-b1.dtb
> +dtb-$(CONFIG_ARCH_PENSANDO) += elba-asic.dtb

Put it in alphabetical order, so not at the end of file.

(...)

> +
> +&i2c0 {
> +	clock-frequency = <100000>;
> +	status = "okay";
> +	rtc@51 {
> +		compatible = "nxp,pcf85263";
> +		reg = <0x51>;
> +	};
> +};
> +
> +&spi0 {
> +	num-cs = <4>;
> +	cs-gpios = <0>, <0>, <&porta 1 GPIO_ACTIVE_LOW>,
> +		   <&porta 7 GPIO_ACTIVE_LOW>;
> +	status = "okay";
> +	spi@0 {

Rob's  comment about bindings applies here as well, so please fix both.
This has to be sorted out - either it is SPI controller or MFD.

Rest looks okay for me.

> +		compatible = "amd,pensando-elbasr", "simple-mfd";
> +		reg = <0>;
> +		#address-cells = <1>;
> +		#size-cells = <0>;
> +		spi-max-frequency = <12000000>;
> +


Best regards,
Krzysztof



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