linux-kernel - RE: [PATCH V2 04/18] ARM: dts: imx7ulp: add the missing lpi2c nodes

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Date:   Fri, 21 May 2021 06:25:52 +0000
From:   Aisheng Dong <aisheng.dong@....com>
To:     Clark Wang <xiaoning.wang@....com>,
        "robh+dt@...nel.org" <robh+dt@...nel.org>,
        "shawnguo@...nel.org" <shawnguo@...nel.org>,
        "s.hauer@...gutronix.de" <s.hauer@...gutronix.de>,
        "festevam@...il.com" <festevam@...il.com>
CC:     "kernel@...gutronix.de" <kernel@...gutronix.de>,
        dl-linux-imx <linux-imx@....com>,
        "linux-i2c@...r.kernel.org" <linux-i2c@...r.kernel.org>,
        "devicetree@...r.kernel.org" <devicetree@...r.kernel.org>,
        "linux-arm-kernel@...ts.infradead.org" 
        <linux-arm-kernel@...ts.infradead.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: RE: [PATCH V2 04/18] ARM: dts: imx7ulp: add the missing lpi2c nodes

> From: Clark Wang <xiaoning.wang@....com>
> Sent: Tuesday, April 6, 2021 7:33 PM
> 
> Add the missing lpi2c4/5 nodes for imx7ulp.
> 
> Signed-off-by: Clark Wang <xiaoning.wang@....com>
> ---
> V2 changes:
>  - New patch added in V2
> ---
>  arch/arm/boot/dts/imx7ulp.dtsi | 31 +++++++++++++++++++++++++++++--
>  1 file changed, 29 insertions(+), 2 deletions(-)
> 
> diff --git a/arch/arm/boot/dts/imx7ulp.dtsi b/arch/arm/boot/dts/imx7ulp.dtsi
> index eb0d4b8f624d..0c51fa79c0bc 100644
> --- a/arch/arm/boot/dts/imx7ulp.dtsi
> +++ b/arch/arm/boot/dts/imx7ulp.dtsi
> @@ -22,8 +22,10 @@ aliases {
>  		gpio1 = &gpio_ptd;
>  		gpio2 = &gpio_pte;
>  		gpio3 = &gpio_ptf;
> -		i2c0 = &lpi2c6;
> -		i2c1 = &lpi2c7;
> +		i2c0 = &lpi2c4;
> +		i2c1 = &lpi2c5;
> +		i2c2 = &lpi2c6;
> +		i2c3 = &lpi2c7;
>  		mmc0 = &usdhc0;
>  		mmc1 = &usdhc1;
>  		serial0 = &lpuart4;
> @@ -145,6 +147,31 @@ sec_jr1: jr@...0 {
>  			};
>  		};
> 
> +		lpi2c4: lpi2c4@...b0000 {

Generic node name is preferred. E.g. I2c@...xx

> +			compatible = "fsl,imx7ulp-lpi2c";
> +			reg = <0x402b0000 0x10000>;
> +			interrupts = <GIC_SPI 34 IRQ_TYPE_LEVEL_HIGH>;
> +			clocks = <&pcc2 IMX7ULP_CLK_LPI2C4>,
> +				 <&scg1 IMX7ULP_CLK_NIC1_BUS_DIV>;
> +			clock-names = "per", "ipg";
> +			assigned-clocks = <&pcc2 IMX7ULP_CLK_LPI2C4>;
> +			assigned-clock-parents = <&scg1 IMX7ULP_CLK_FIRC>;
> +			assigned-clock-rates = <48000000>;
> +			status = "disabled";
> +		};
> +
> +		lpi2c5: lpi2c5@...c0000 {

Ditto

> +			compatible = "fsl,imx7ulp-lpi2c";
> +			reg = <0x402c0000 0x10000>;
> +			interrupts = <GIC_SPI 35 IRQ_TYPE_LEVEL_HIGH>;
> +			clocks = <&pcc2 IMX7ULP_CLK_LPI2C5>,
> +				 <&scg1 IMX7ULP_CLK_NIC1_BUS_DIV>;
> +			clock-names = "per", "ipg";
> +			assigned-clocks = <&pcc2 IMX7ULP_CLK_LPI2C5>;
> +			assigned-clock-parents = <&scg1 IMX7ULP_CLK_FIRC>;
> +			assigned-clock-rates = <48000000>;
> +		};
> +
>  		lpuart4: serial@...d0000 {
>  			compatible = "fsl,imx7ulp-lpuart";
>  			reg = <0x402d0000 0x1000>;
> --
> 2.25.1