linux-kernel - RE: [PATCH 04/14] arm64: dts: realtek: rtd16xx: Introduce iso and misc syscon

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Date:   Mon, 30 Dec 2019 05:53:18 +0000
From:   James Tai <james.tai@...ltek.com>
To:     Andreas Färber <afaerber@...e.de>,
        "linux-realtek-soc@...ts.infradead.org" 
        <linux-realtek-soc@...ts.infradead.org>
CC:     "linux-arm-kernel@...ts.infradead.org" 
        <linux-arm-kernel@...ts.infradead.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        Rob Herring <robh+dt@...nel.org>,
        "Mark Rutland" <mark.rutland@....com>,
        "devicetree@...r.kernel.org" <devicetree@...r.kernel.org>
Subject: RE: [PATCH 04/14] arm64: dts: realtek: rtd16xx: Introduce iso and misc syscon

> Group UART0 into an Isolation syscon mfd node.
> Group UART1 and UART2 into a Miscellaneous syscon mfd node.
> 
> Cc: James Tai <james.tai@...ltek.com>
> Signed-off-by: Andreas Färber <afaerber@...e.de>
> ---
>  arch/arm64/boot/dts/realtek/rtd16xx.dtsi | 70
> +++++++++++++++++++++-----------
>  1 file changed, 46 insertions(+), 24 deletions(-)
> 
> diff --git a/arch/arm64/boot/dts/realtek/rtd16xx.dtsi
> b/arch/arm64/boot/dts/realtek/rtd16xx.dtsi
> index 69cc0d941c8d..8f8f2b328cd1 100644
> --- a/arch/arm64/boot/dts/realtek/rtd16xx.dtsi
> +++ b/arch/arm64/boot/dts/realtek/rtd16xx.dtsi
> @@ -118,34 +118,22 @@
>  			#size-cells = <1>;
>  			ranges = <0x0 0x98000000 0x200000>;
> 
> -			uart0: serial0@...0 {
> -				compatible = "snps,dw-apb-uart";
> -				reg = <0x7800 0x400>;
> -				reg-shift = <2>;
> +			iso: syscon@...0 {
> +				compatible = "syscon", "simple-mfd";
> +				reg = <0x7000 0x1000>;
>  				reg-io-width = <4>;
> -				interrupts = <GIC_SPI 68 IRQ_TYPE_LEVEL_HIGH>;
> -				clock-frequency = <27000000>;
> -				status = "disabled";
> +				#address-cells = <1>;
> +				#size-cells = <1>;
> +				ranges = <0x0 0x7000 0x1000>;
>  			};
> 
> -			uart1: serial1@...00 {
> -				compatible = "snps,dw-apb-uart";
> -				reg = <0x1b200 0x400>;
> -				reg-shift = <2>;
> +			misc: syscon@...00 {
> +				compatible = "syscon", "simple-mfd";
> +				reg = <0x1b000 0x1000>;
>  				reg-io-width = <4>;
> -				interrupts = <GIC_SPI 89 IRQ_TYPE_LEVEL_HIGH>;
> -				clock-frequency = <432000000>;
> -				status = "disabled";
> -			};
> -
> -			uart2: serial2@...00 {
> -				compatible = "snps,dw-apb-uart";
> -				reg = <0x1b400 0x400>;
> -				reg-shift = <2>;
> -				reg-io-width = <4>;
> -				interrupts = <GIC_SPI 90 IRQ_TYPE_LEVEL_HIGH>;
> -				clock-frequency = <432000000>;
> -				status = "disabled";
> +				#address-cells = <1>;
> +				#size-cells = <1>;
> +				ranges = <0x0 0x1b000 0x1000>;
>  			};
>  		};
> 
> @@ -159,3 +147,37 @@
>  		};
>  	};
>  };
> +
> +&iso {
> +	uart0: serial0@800 {
> +		compatible = "snps,dw-apb-uart";
> +		reg = <0x800 0x400>;
> +		reg-shift = <2>;
> +		reg-io-width = <4>;
> +		interrupts = <GIC_SPI 68 IRQ_TYPE_LEVEL_HIGH>;
> +		clock-frequency = <27000000>;
> +		status = "disabled";
> +	};
> +};
> +
> +&misc {
> +	uart1: serial1@200 {
> +		compatible = "snps,dw-apb-uart";
> +		reg = <0x200 0x400>;
> +		reg-shift = <2>;
> +		reg-io-width = <4>;
> +		interrupts = <GIC_SPI 89 IRQ_TYPE_LEVEL_HIGH>;
> +		clock-frequency = <432000000>;
> +		status = "disabled";
> +	};
> +
> +	uart2: serial2@400 {
> +		compatible = "snps,dw-apb-uart";
> +		reg = <0x400 0x400>;
> +		reg-shift = <2>;
> +		reg-io-width = <4>;
> +		interrupts = <GIC_SPI 90 IRQ_TYPE_LEVEL_HIGH>;
> +		clock-frequency = <432000000>;
> +		status = "disabled";
> +	};
> +};
> --
> 2.16.4
> 
> 
Acked-by: James Tai <james.tai@...ltek.com>