linux-kernel - Re: [PATCH] arm64: dts: actions: s700: Add I2C controller nodes

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Message-ID: <20181115111217.GC15537@Mani-XPS-13-9360>
Date:   Thu, 15 Nov 2018 16:42:25 +0530
From:   Manivannan Sadhasivam <manivannan.sadhasivam@...aro.org>
To:     Parthiban Nallathambi <pn@...x.de>
Cc:     afaerber@...e.de, robh+dt@...nel.org, mark.rutland@....com,
        wsa@...-dreams.de, linux-arm-kernel@...ts.infradead.org,
        devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
        linux-i2c@...r.kernel.org
Subject: Re: [PATCH] arm64: dts: actions: s700: Add I2C controller nodes

Hi Parthiban,

On Tue, Nov 13, 2018 at 02:32:35PM +0100, Parthiban Nallathambi wrote:
> Add I2C controller nodes for Actions Semiconductor S700 SoC.
> 
> Signed-off-by: Parthiban Nallathambi <pn@...x.de>
> ---
>  arch/arm64/boot/dts/actions/s700.dtsi | 40 +++++++++++++++++++++++++++
>  1 file changed, 40 insertions(+)
> 
> diff --git a/arch/arm64/boot/dts/actions/s700.dtsi b/arch/arm64/boot/dts/actions/s700.dtsi
> index 192c7b39c8c1..573c844d7afe 100644
> --- a/arch/arm64/boot/dts/actions/s700.dtsi
> +++ b/arch/arm64/boot/dts/actions/s700.dtsi
> @@ -174,6 +174,46 @@
>  			#clock-cells = <1>;
>  		};
>  
> +		i2c0: i2c@...70000 {
> +			compatible = "actions,s900-i2c";

Why don't you add a compatible for S700? Also, please add the pinctrl
nodes for these busses and enable the ones exposed on board. These could
go in a separate patch.

Thanks,
Mani

> +			reg = <0 0xe0170000 0 0x1000>;
> +			clocks = <&cmu CLK_I2C0>;
> +			interrupts = <GIC_SPI 25 IRQ_TYPE_LEVEL_HIGH>;
> +			#address-cells = <1>;
> +			#size-cells = <0>;
> +			status = "disabled";
> +		};
> +
> +		i2c1: i2c@...74000 {
> +			compatible = "actions,s900-i2c";
> +			reg = <0 0xe0174000 0 0x1000>;
> +			clocks = <&cmu CLK_I2C1>;
> +			interrupts = <GIC_SPI 26 IRQ_TYPE_LEVEL_HIGH>;
> +			#address-cells = <1>;
> +			#size-cells = <0>;
> +			status = "disabled";
> +		};
> +
> +		i2c2: i2c@...78000 {
> +			compatible = "actions,s900-i2c";
> +			reg = <0 0xe0178000 0 0x1000>;
> +			clocks = <&cmu CLK_I2C2>;
> +			interrupts = <GIC_SPI 27 IRQ_TYPE_LEVEL_HIGH>;
> +			#address-cells = <1>;
> +			#size-cells = <0>;
> +			status = "disabled";
> +		};
> +
> +		i2c3: i2c@...7c000 {
> +			compatible = "actions,s900-i2c";
> +			reg = <0 0xe017c000 0 0x1000>;
> +			clocks = <&cmu CLK_I2C3>;
> +			interrupts = <GIC_SPI 28 IRQ_TYPE_LEVEL_HIGH>;
> +			#address-cells = <1>;
> +			#size-cells = <0>;
> +			status = "disabled";
> +		};
> +
>  		sps: power-controller@...b0100 {
>  			compatible = "actions,s700-sps";
>  			reg = <0x0 0xe01b0100 0x0 0x100>;
> -- 
> 2.17.2
>