linux-kernel - Re: [PATCH 5/8] arm64: dts: allwinner: add R

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Date:   Wed, 8 Feb 2017 11:14:58 +0100
From:   Maxime Ripard <maxime.ripard@...e-electrons.com>
To:     Icenowy Zheng <icenowy@...c.xyz>
Cc:     Linus Walleij <linus.walleij@...aro.org>,
        Rob Herring <robh+dt@...nel.org>, Chen-Yu Tsai <wens@...e.org>,
        Catalin Marinas <catalin.marinas@....com>,
        Will Deacon <will.deacon@....com>, linux-gpio@...r.kernel.org,
        devicetree@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        linux-kernel@...r.kernel.org, linux-sunxi@...glegroups.com
Subject: Re: [PATCH 5/8] arm64: dts: allwinner: add R_PIO node

On Wed, Feb 08, 2017 at 06:00:06PM +0800, Icenowy Zheng wrote:
> Allwinner A64 SoC has a R_PIO node like the one in H3.
> 
> Add the node as well as needed clocks and resets.
> 
> As there's no document for apb0_gates, I only added the R_PIO bit here.
> 
> Signed-off-by: Icenowy Zheng <icenowy@...c.xyz>
> ---
>  arch/arm64/boot/dts/allwinner/sun50i-a64.dtsi | 40 +++++++++++++++++++++++++++
>  1 file changed, 40 insertions(+)
> 
> diff --git a/arch/arm64/boot/dts/allwinner/sun50i-a64.dtsi b/arch/arm64/boot/dts/allwinner/sun50i-a64.dtsi
> index 1c64ea2d23f9..4b0baa79554c 100644
> --- a/arch/arm64/boot/dts/allwinner/sun50i-a64.dtsi
> +++ b/arch/arm64/boot/dts/allwinner/sun50i-a64.dtsi
> @@ -98,6 +98,15 @@
>  		clock-output-names = "osc32k";
>  	};
>  
> +	apb0: apb0_clk {
> +		compatible = "fixed-factor-clock";
> +		#clock-cells = <0>;
> +		clock-div = <1>;
> +		clock-mult = <1>;
> +		clocks = <&osc24M>;
> +		clock-output-names = "apb0";
> +	};
> +
>  	psci {
>  		compatible = "arm,psci-0.2";
>  		method = "smc";
> @@ -392,5 +401,36 @@
>  			interrupts = <GIC_SPI 40 IRQ_TYPE_LEVEL_HIGH>,
>  				     <GIC_SPI 41 IRQ_TYPE_LEVEL_HIGH>;
>  		};
> +
> +		apb0_gates: clk@...1428 {
> +			compatible = "allwinner,sun50i-a64-apb0-gates-clk",
> +				     "allwinner,sun4i-a10-gates-clk";
> +			reg = <0x01f01428 0x4>;
> +			#clock-cells = <1>;
> +			clocks = <&apb0>;
> +			clock-indices = <0>;
> +			clock-output-names = "apb0_pio";
> +		};
> +
> +		apb0_rst: reset@...14b0 {
> +			reg = <0x01f014b0 0x4>;
> +			compatible = "allwinner,sun6i-a31-clock-reset";
> +			#reset-cells = <1>;
> +		};

Please make a sunxi-ng driver for those clocks.

Thanks,
Maxime

-- 
Maxime Ripard, Free Electrons
Embedded Linux and Kernel engineering
http://free-electrons.com

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