linux-kernel - Re: [PATCH v2 1/1] arm64: dts: mt8192: Add mmc device nodes

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Date:   Thu, 14 Apr 2022 17:18:55 -0400
From:   Nícolas F. R. A. Prado 
        <nfraprado@...labora.com>
To:     Allen-KH Cheng <allen-kh.cheng@...iatek.com>
Cc:     Matthias Brugger <matthias.bgg@...il.com>,
        Rob Herring <robh+dt@...nel.org>,
        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,
        Chen-Yu Tsai <wenst@...omium.org>,
        Ryder Lee <ryder.lee@...nel.org>,
        Hui Liu <hui.liu@...iatek.com>
Subject: Re: [PATCH v2 1/1] arm64: dts: mt8192: Add mmc device nodes

On Thu, Apr 07, 2022 at 07:37:03PM +0800, Allen-KH Cheng wrote:
> In mt8192 SoC, mmc driver dose not use the MSDC module to control
> clock. It will read/write register to enable/disable clock. Also
> there is no other device of mt8192 using MSDC controller.
> 
> We add mmc nodes for mt8192 SoC and remove the clock-controller in
> dts for avoid a duplicate unit-address(11f60000) warning.
> 
> Signed-off-by: Allen-KH Cheng <allen-kh.cheng@...iatek.com>

Reviewed-by: Nícolas F. R. A. Prado <nfraprado@...labora.com>

> ---
>  arch/arm64/boot/dts/mediatek/mt8192.dtsi | 34 +++++++++++++++++++++---
>  1 file changed, 30 insertions(+), 4 deletions(-)
> 
> diff --git a/arch/arm64/boot/dts/mediatek/mt8192.dtsi b/arch/arm64/boot/dts/mediatek/mt8192.dtsi
> index a6da7b04b9d4..18a58239d6f1 100644
> --- a/arch/arm64/boot/dts/mediatek/mt8192.dtsi
> +++ b/arch/arm64/boot/dts/mediatek/mt8192.dtsi
> @@ -985,10 +985,36 @@
>  			#clock-cells = <1>;
>  		};
>  
> -		msdc: clock-controller@...60000 {
> -			compatible = "mediatek,mt8192-msdc";
> -			reg = <0 0x11f60000 0 0x1000>;
> -			#clock-cells = <1>;
> +		mmc0: mmc@...60000 {
> +			compatible = "mediatek,mt8192-mmc", "mediatek,mt8183-mmc";
> +			reg = <0 0x11f60000 0 0x1000>, <0 0x11f50000 0 0x1000>;
> +			interrupts = <GIC_SPI 99 IRQ_TYPE_LEVEL_HIGH 0>;
> +			clocks = <&topckgen CLK_TOP_MSDC50_0_SEL>,
> +				 <&msdc_top CLK_MSDC_TOP_H_MST_0P>,
> +				 <&msdc_top CLK_MSDC_TOP_SRC_0P>,
> +				 <&msdc_top CLK_MSDC_TOP_P_CFG>,
> +				 <&msdc_top CLK_MSDC_TOP_P_MSDC0>,
> +				 <&msdc_top CLK_MSDC_TOP_AXI>,
> +				 <&msdc_top CLK_MSDC_TOP_AHB2AXI_BRG_AXI>;
> +			clock-names = "source", "hclk", "source_cg", "sys_cg",
> +				      "pclk_cg", "axi_cg", "ahb_cg";
> +			status = "disabled";
> +		};
> +
> +		mmc1: mmc@...70000 {
> +			compatible = "mediatek,mt8192-mmc", "mediatek,mt8183-mmc";
> +			reg = <0 0x11f70000 0 0x1000>, <0 0x11c70000 0 0x1000>;
> +			interrupts = <GIC_SPI 103 IRQ_TYPE_LEVEL_HIGH 0>;
> +			clocks = <&topckgen CLK_TOP_MSDC30_1_SEL>,
> +				 <&msdc_top CLK_MSDC_TOP_H_MST_1P>,
> +				 <&msdc_top CLK_MSDC_TOP_SRC_1P>,
> +				 <&msdc_top CLK_MSDC_TOP_P_CFG>,
> +				 <&msdc_top CLK_MSDC_TOP_P_MSDC1>,
> +				 <&msdc_top CLK_MSDC_TOP_AXI>,
> +				 <&msdc_top CLK_MSDC_TOP_AHB2AXI_BRG_AXI>;
> +			clock-names = "source", "hclk", "source_cg", "sys_cg",
> +				      "pclk_cg", "axi_cg", "ahb_cg";
> +			status = "disabled";
>  		};
>  
>  		mfgcfg: clock-controller@...bf000 {
> -- 
> 2.18.0
> 
>