linux-kernel - Re: [PATCH v3] arm64: dts: ls1028a: Add esdhc node in dts

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Date:   Sat, 3 Aug 2019 09:00:34 +0200
From:   Shawn Guo <shawnguo@...nel.org>
To:     Yinbo Zhu <yinbo.zhu@....com>
Cc:     Li Yang <leoyang.li@....com>, Rob Herring <robh+dt@...nel.org>,
        xiaobo.xie@....com, Mark Rutland <mark.rutland@....com>,
        linux-arm-kernel@...ts.infradead.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org, linux-mmc@...r.kernel.org,
        yangbo.lu@....com, jiafei.pan@....com,
        Ashish Kumar <Ashish.Kumar@....com>
Subject: Re: [PATCH v3] arm64: dts: ls1028a: Add esdhc node in dts

On Wed, May 15, 2019 at 04:49:25PM +0800, Yinbo Zhu wrote:
> From: Ashish Kumar <Ashish.Kumar@....com>
> 
> This patch is to add esdhc node and enable SD UHS-I,
> eMMC HS200 for ls1028ardb/ls1028aqds board.
> 
> Signed-off-by: Ashish Kumar <Ashish.Kumar@....com>
> Signed-off-by: Yangbo Lu <yangbo.lu@....com>
> Signed-off-by: Yinbo Zhu <yinbo.zhu@....com>
> ---
> Change in v3:
> 		replace "esdhc@" with "mmc@"
> 
>  arch/arm64/boot/dts/freescale/fsl-ls1028a-qds.dts |    8 ++++++
>  arch/arm64/boot/dts/freescale/fsl-ls1028a-rdb.dts |   13 ++++++++++
>  arch/arm64/boot/dts/freescale/fsl-ls1028a.dtsi    |   27 +++++++++++++++++++++
>  3 files changed, 48 insertions(+), 0 deletions(-)
> 
> diff --git a/arch/arm64/boot/dts/freescale/fsl-ls1028a-qds.dts b/arch/arm64/boot/dts/freescale/fsl-ls1028a-qds.dts
> index 14c79f4..180e5d2 100644
> --- a/arch/arm64/boot/dts/freescale/fsl-ls1028a-qds.dts
> +++ b/arch/arm64/boot/dts/freescale/fsl-ls1028a-qds.dts
> @@ -42,6 +42,14 @@
>  	status = "okay";
>  };
>  
> +&esdhc {
> +	status = "okay";
> +};
> +
> +&esdhc1 {
> +	status = "okay";
> +};
> +
>  &i2c0 {
>  	status = "okay";
>  
> diff --git a/arch/arm64/boot/dts/freescale/fsl-ls1028a-rdb.dts b/arch/arm64/boot/dts/freescale/fsl-ls1028a-rdb.dts
> index f86b054..1bfaf42 100644
> --- a/arch/arm64/boot/dts/freescale/fsl-ls1028a-rdb.dts
> +++ b/arch/arm64/boot/dts/freescale/fsl-ls1028a-rdb.dts
> @@ -30,6 +30,19 @@
>  	};
>  };
>  
> +&esdhc {
> +	status = "okay";

We usually put 'status' at end of property list.

> +	sd-uhs-sdr104;
> +	sd-uhs-sdr50;
> +	sd-uhs-sdr25;
> +	sd-uhs-sdr12;
> +	};

Please follow the indent style of closing parentheses in the file.

> +
> +&esdhc1 {
> +	status = "okay";
> +	mmc-hs200-1_8v;
> +	};

Ditto

> +
>  &i2c0 {
>  	status = "okay";
>  
> diff --git a/arch/arm64/boot/dts/freescale/fsl-ls1028a.dtsi b/arch/arm64/boot/dts/freescale/fsl-ls1028a.dtsi
> index 2896bbc..462833c 100644
> --- a/arch/arm64/boot/dts/freescale/fsl-ls1028a.dtsi
> +++ b/arch/arm64/boot/dts/freescale/fsl-ls1028a.dtsi
> @@ -274,6 +274,33 @@
>  			status = "disabled";
>  		};
>  
> +		esdhc: mmc@...0000 {

Please sort the nodes in unit-address.  From what I see, it should go
before device serial@...0500.

> +			compatible = "fsl,ls1028a-esdhc", "fsl,esdhc";
> +			reg = <0x0 0x2140000 0x0 0x10000>;
> +			interrupts = <0 28 0x4>; /* Level high type */

Use IRQ_TYPE_LEVEL_HIGH, then you can drop the comment.

Shawn

> +			clock-frequency = <0>; /* fixed up by bootloader */
> +			clocks = <&clockgen 2 1>;
> +			voltage-ranges = <1800 1800 3300 3300>;
> +			sdhci,auto-cmd12;
> +			little-endian;
> +			bus-width = <4>;
> +			status = "disabled";
> +		};
> +
> +		esdhc1: mmc@...0000 {
> +			compatible = "fsl,ls1028a-esdhc", "fsl,esdhc";
> +			reg = <0x0 0x2150000 0x0 0x10000>;
> +			interrupts = <0 63 0x4>; /* Level high type */
> +			clock-frequency = <0>; /* fixed up by bootloader */
> +			clocks = <&clockgen 2 1>;
> +			voltage-ranges = <1800 1800 3300 3300>;
> +			sdhci,auto-cmd12;
> +			broken-cd;
> +			little-endian;
> +			bus-width = <4>;
> +			status = "disabled";
> +		};
> +
>  		sata: sata@...0000 {
>  			compatible = "fsl,ls1028a-ahci";
>  			reg = <0x0 0x3200000 0x0 0x10000>,
> -- 
> 1.7.1
>