linux-kernel - Re: [PATCH 3/5] arm64: dts: mt8186: Add IOMMU and SMI nodes

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Date:   Tue, 27 Sep 2022 15:40:42 +0200
From:   AngeloGioacchino Del Regno 
        <angelogioacchino.delregno@...labora.com>
To:     Allen-KH Cheng <allen-kh.cheng@...iatek.com>,
        Lee Jones <lee@...nel.org>,
        Matthias Brugger <matthias.bgg@...il.com>,
        Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
Cc:     Project_Global_Chrome_Upstream_Group@...iatek.com,
        devicetree@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        linux-kernel@...r.kernel.org, linux-mediatek@...ts.infradead.org,
        hsinyi@...omium.org
Subject: Re: [PATCH 3/5] arm64: dts: mt8186: Add IOMMU and SMI nodes

Il 23/09/22 15:11, Allen-KH Cheng ha scritto:
> Add iommu and smi nodes for mt8186 SoC.
> 
> Signed-off-by: Allen-KH Cheng <allen-kh.cheng@...iatek.com>
> ---
>   arch/arm64/boot/dts/mediatek/mt8186.dtsi | 173 +++++++++++++++++++++++
>   1 file changed, 173 insertions(+)
> 
> diff --git a/arch/arm64/boot/dts/mediatek/mt8186.dtsi b/arch/arm64/boot/dts/mediatek/mt8186.dtsi
> index 833e7037fe22..68f06bef88f3 100644
> --- a/arch/arm64/boot/dts/mediatek/mt8186.dtsi
> +++ b/arch/arm64/boot/dts/mediatek/mt8186.dtsi
> @@ -7,6 +7,7 @@
>   #include <dt-bindings/clock/mt8186-clk.h>
>   #include <dt-bindings/interrupt-controller/arm-gic.h>
>   #include <dt-bindings/interrupt-controller/irq.h>
> +#include <dt-bindings/memory/mt8186-memory-port.h>
>   #include <dt-bindings/pinctrl/mt8186-pinfunc.h>
>   #include <dt-bindings/power/mt8186-power.h>
>   #include <dt-bindings/phy/phy.h>
> @@ -944,24 +945,113 @@
>   			#reset-cells = <1>;
>   		};
>   
> +		smi_common: smi@...02000 {
> +			compatible = "mediatek,mt8186-smi-common";
> +			reg = <0 0x14002000 0 0x1000>;
> +			clocks = <&mmsys CLK_MM_SMI_COMMON>, <&mmsys CLK_MM_SMI_COMMON>,
> +				 <&mmsys CLK_MM_SMI_GALS>, <&mmsys CLK_MM_SMI_GALS>;
> +			clock-names = "apb", "smi", "gals0", "gals1";
> +			power-domains = <&spm MT8186_POWER_DOMAIN_DIS>;
> +		};
> +
> +		larb0: smi@...03000 {
> +			compatible = "mediatek,mt8186-smi-larb";
> +			reg = <0 0x14003000 0 0x1000>;
> +			mediatek,larb-id = <0>;
> +			mediatek,smi = <&smi_common>;

Order by name after reg please...

compatible
reg
clocks
clock-names
mediatek,larb-id
mediatek,smi
power-domains

> +			clocks = <&mmsys CLK_MM_SMI_COMMON>,
> +				 <&mmsys CLK_MM_SMI_COMMON>;
> +			clock-names = "apb", "smi";
> +			power-domains = <&spm MT8186_POWER_DOMAIN_DIS>;
> +		};
> +
> +		larb1: smi@...04000 {
> +			compatible = "mediatek,mt8186-smi-larb";
> +			reg = <0 0x14004000 0 0x1000>;
> +			mediatek,larb-id = <1>;
> +			mediatek,smi = <&smi_common>;
> +			clocks = <&mmsys CLK_MM_SMI_COMMON>,
> +				 <&mmsys CLK_MM_SMI_COMMON>;
> +			clock-names = "apb", "smi";
> +			power-domains = <&spm MT8186_POWER_DOMAIN_DIS>;
> +		};
> +
> +		iommu_mm: iommu@...16000 {
> +			compatible = "mediatek,mt8186-iommu-mm";
> +			reg = <0 0x14016000 0 0x1000>;
> +			mediatek,larbs = <&larb0 &larb1 &larb2 &larb4
> +					  &larb7 &larb8 &larb9 &larb11
> +					  &larb13 &larb14 &larb16 &larb17
> +					  &larb19 &larb20>;
> +			interrupts = <GIC_SPI 313 IRQ_TYPE_LEVEL_HIGH 0>;
> +			clocks = <&mmsys CLK_MM_SMI_IOMMU>;
> +			clock-names = "bclk";

clocks
clock-names
interrupts
mediatek,larbs
power-domains

...etc :-)

P.S.: Same comment for the other commits, too!

Regards,
Angelo