linux-kernel - Re: [PATCH V4 3/3] arm64: dts: imx8mp: Enable HS400-ES

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Date:   Tue, 12 Apr 2022 16:12:15 +0200
From:   Ahmad Fatoum <a.fatoum@...gutronix.de>
To:     Adam Ford <aford173@...il.com>, linux-mmc@...r.kernel.org
Cc:     devicetree@...r.kernel.org, Ulf Hansson <ulf.hansson@...aro.org>,
        Fabio Estevam <festevam@...il.com>,
        Pengutronix Kernel Team <kernel@...gutronix.de>,
        Sascha Hauer <s.hauer@...gutronix.de>,
        aford@...conembedded.com, linux-kernel@...r.kernel.org,
        Rob Herring <robh+dt@...nel.org>,
        NXP Linux Team <linux-imx@....com>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Shawn Guo <shawnguo@...nel.org>,
        linux-arm-kernel@...ts.infradead.org
Subject: Re: [PATCH V4 3/3] arm64: dts: imx8mp: Enable HS400-ES

On 10.04.22 21:35, Adam Ford wrote:
> The SDHC controller in the imx8mp has the same controller
> as the imx8mm which supports HS400-ES. Change the compatible
> fallback to imx8mm to enable it, but keep the imx7d-usdhc
> to prevent breaking backwards compatibility.
> 
> Signed-off-by: Adam Ford <aford173@...il.com>

Reviewed-by: Ahmad Fatoum <a.fatoum@...gutronix.de>

Thanks,
Ahmad

> ---
> V4: No Change
> V3: No change
> V2: Keep fallback to fsl,imx7d-usdhc to prevent breakage
> 
> diff --git a/arch/arm64/boot/dts/freescale/imx8mp.dtsi b/arch/arm64/boot/dts/freescale/imx8mp.dtsi
> index 794d75173cf5..8578ff1062e6 100644
> --- a/arch/arm64/boot/dts/freescale/imx8mp.dtsi
> +++ b/arch/arm64/boot/dts/freescale/imx8mp.dtsi
> @@ -769,7 +769,7 @@ i2c6: i2c@...e0000 {
>  			};
>  
>  			usdhc1: mmc@...40000 {
> -				compatible = "fsl,imx8mp-usdhc", "fsl,imx7d-usdhc";
> +				compatible = "fsl,imx8mp-usdhc", "fsl,imx8mm-usdhc", "fsl,imx7d-usdhc";
>  				reg = <0x30b40000 0x10000>;
>  				interrupts = <GIC_SPI 22 IRQ_TYPE_LEVEL_HIGH>;
>  				clocks = <&clk IMX8MP_CLK_DUMMY>,
> @@ -783,7 +783,7 @@ usdhc1: mmc@...40000 {
>  			};
>  
>  			usdhc2: mmc@...50000 {
> -				compatible = "fsl,imx8mp-usdhc", "fsl,imx7d-usdhc";
> +				compatible = "fsl,imx8mp-usdhc", "fsl,imx8mm-usdhc", "fsl,imx7d-usdhc";
>  				reg = <0x30b50000 0x10000>;
>  				interrupts = <GIC_SPI 23 IRQ_TYPE_LEVEL_HIGH>;
>  				clocks = <&clk IMX8MP_CLK_DUMMY>,
> @@ -797,7 +797,7 @@ usdhc2: mmc@...50000 {
>  			};
>  
>  			usdhc3: mmc@...60000 {
> -				compatible = "fsl,imx8mp-usdhc", "fsl,imx7d-usdhc";
> +				compatible = "fsl,imx8mp-usdhc", "fsl,imx8mm-usdhc", "fsl,imx7d-usdhc";
>  				reg = <0x30b60000 0x10000>;
>  				interrupts = <GIC_SPI 24 IRQ_TYPE_LEVEL_HIGH>;
>  				clocks = <&clk IMX8MP_CLK_DUMMY>,


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