linux-kernel - Re: [PATCH 1/2] arm64: dts: mediatek: add MT6779 spi master dts node

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Message-ID: <4e39785a-06a6-4ec5-5930-8a5bf53e4f7b@gmail.com>
Date:   Wed, 7 Apr 2021 13:17:22 +0200
From:   Matthias Brugger <matthias.bgg@...il.com>
To:     Mason Zhang <Mason.Zhang@...iatek.com>,
        Rob Herring <robh+dt@...nel.org>
Cc:     devicetree@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        linux-mediatek@...ts.infradead.org, linux-kernel@...r.kernel.org,
        hanks.chen@...iateka.com, wsd_upstream@...iatek.com,
        Leilk Liu <leilk.liu@...iatek.com>
Subject: Re: [PATCH 1/2] arm64: dts: mediatek: add MT6779 spi master dts node



On 26/02/2021 11:59, Mason Zhang wrote:
> this patch add spi master dts node for mt6779 SOC.
> 
> Signed-off-by: Mason Zhang <Mason.Zhang@...iatek.com>
> ---
>  arch/arm64/boot/dts/mediatek/mt6779.dtsi | 96 ++++++++++++++++++++++++
>  1 file changed, 96 insertions(+)
> 
> diff --git a/arch/arm64/boot/dts/mediatek/mt6779.dtsi b/arch/arm64/boot/dts/mediatek/mt6779.dtsi
> index 370f309d32de..ca72eb09cff9 100644
> --- a/arch/arm64/boot/dts/mediatek/mt6779.dtsi
> +++ b/arch/arm64/boot/dts/mediatek/mt6779.dtsi
> @@ -219,6 +219,102 @@
>  			status = "disabled";
>  		};
>  
> +		spi0: spi0@...0a000 {
> +			compatible = "mediatek,mt6779-spi",
> +				     "mediatek,mt6765-spi";
> +			mediatek,pad-select = <0>;
> +			reg = <0 0x1100a000 0 0x1000>;
> +			interrupts = <GIC_SPI 143 IRQ_TYPE_LEVEL_LOW 0>;
> +			clocks = <&topckgen CLK_TOP_MAINPLL_D5_D2>,
> +				<&topckgen CLK_TOP_SPI>,
> +				<&infracfg_ao CLK_INFRA_SPI0>;
> +			clock-names = "parent-clk", "sel-clk", "spi-clk";

>From the binding description:
- #address-cells: should be 1.

- #size-cells: should be 0.

We are missing both here. Please fix that.

Apart the binding description is naming PLL, clock mux and clock gate IDs which
do not correspond to the ones used here. It seems that this binding was tailored
for a specific SoC family but never made generic. If you want, please do so and
convert it to yaml.

Regards,
Matthias

> +		};
> +
> +		spi1: spi1@...10000 {
> +			compatible = "mediatek,mt6779-spi",
> +				     "mediatek,mt6765-spi";
> +			mediatek,pad-select = <0>;
> +			reg = <0 0x11010000 0 0x1000>;
> +			interrupts = <GIC_SPI 147 IRQ_TYPE_LEVEL_LOW 0>;
> +			clocks = <&topckgen CLK_TOP_MAINPLL_D5_D2>,
> +				<&topckgen CLK_TOP_SPI>,
> +				<&infracfg_ao CLK_INFRA_SPI1>;
> +			clock-names = "parent-clk", "sel-clk", "spi-clk";
> +		};
> +
> +		spi2: spi2@...12000 {
> +			compatible = "mediatek,mt6779-spi",
> +				     "mediatek,mt6765-spi";
> +			mediatek,pad-select = <0>;
> +			reg = <0 0x11012000 0 0x1000>;
> +			interrupts = <GIC_SPI 152 IRQ_TYPE_LEVEL_LOW 0>;
> +			clocks = <&topckgen CLK_TOP_MAINPLL_D5_D2>,
> +				 <&topckgen CLK_TOP_SPI>,
> +				<&infracfg_ao CLK_INFRA_SPI2>;
> +			clock-names = "parent-clk", "sel-clk", "spi-clk";
> +		};
> +
> +		spi3: spi3@...13000 {
> +			compatible = "mediatek,mt6779-spi",
> +				     "mediatek,mt6765-spi";
> +			mediatek,pad-select = <0>;
> +			reg = <0 0x11013000 0 0x1000>;
> +			interrupts = <GIC_SPI 153 IRQ_TYPE_LEVEL_LOW 0>;
> +			clocks = <&topckgen CLK_TOP_MAINPLL_D5_D2>,
> +				 <&topckgen CLK_TOP_SPI>,
> +				 <&infracfg_ao CLK_INFRA_SPI3>;
> +			clock-names = "parent-clk", "sel-clk", "spi-clk";
> +		};
> +
> +		spi4: spi4@...18000 {
> +			compatible = "mediatek,mt6779-spi",
> +				     "mediatek,mt6765-spi";
> +			mediatek,pad-select = <0>;
> +			reg = <0 0x11018000 0 0x1000>;
> +			interrupts = <GIC_SPI 156 IRQ_TYPE_LEVEL_LOW 0>;
> +			clocks = <&topckgen CLK_TOP_MAINPLL_D5_D2>,
> +				 <&topckgen CLK_TOP_SPI>,
> +				 <&infracfg_ao CLK_INFRA_SPI4>;
> +			clock-names = "parent-clk", "sel-clk", "spi-clk";
> +		};
> +
> +		spi5: spi5@...19000 {
> +			compatible = "mediatek,mt6779-spi",
> +				     "mediatek,mt6765-spi";
> +			mediatek,pad-select = <0>;
> +			reg = <0 0x11019000 0 0x1000>;
> +			interrupts = <GIC_SPI 157 IRQ_TYPE_LEVEL_LOW 0>;
> +			clocks = <&topckgen CLK_TOP_MAINPLL_D5_D2>,
> +				<&topckgen CLK_TOP_SPI>,
> +				<&infracfg_ao CLK_INFRA_SPI5>;
> +			clock-names = "parent-clk", "sel-clk", "spi-clk";
> +		};
> +
> +		spi6: spi6@...1d000 {
> +			compatible = "mediatek,mt6779-spi",
> +				     "mediatek,mt6765-spi";
> +			mediatek,pad-select = <0>;
> +			reg = <0 0x1101d000 0 0x1000>;
> +			interrupts = <GIC_SPI 144 IRQ_TYPE_LEVEL_LOW 0>;
> +			clocks = <&topckgen CLK_TOP_MAINPLL_D5_D2>,
> +				 <&topckgen CLK_TOP_SPI>,
> +				 <&infracfg_ao CLK_INFRA_SPI6>;
> +			clock-names = "parent-clk", "sel-clk", "spi-clk";
> +		};
> +
> +		spi7: spi7@...1e000 {
> +			compatible = "mediatek,mt6779-spi",
> +				     "mediatek,mt6765-spi";
> +			mediatek,pad-select = <0>;
> +			reg = <0 0x1101e000 0 0x1000>;
> +			interrupts = <GIC_SPI 145 IRQ_TYPE_LEVEL_LOW 0>;
> +			clocks = <&topckgen CLK_TOP_MAINPLL_D5_D2>,
> +				 <&topckgen CLK_TOP_SPI>,
> +				 <&infracfg_ao CLK_INFRA_SPI7>;
> +			clock-names = "parent-clk", "sel-clk", "spi-clk";
> +		};
> +
>  		audio: clock-controller@...10000 {
>  			compatible = "mediatek,mt6779-audio", "syscon";
>  			reg = <0 0x11210000 0 0x1000>;
>