linux-kernel - Re: [PATCH v4 09/13] ARM: dts: sun8i: r40: add sata node

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Message-ID: <20180831073500.zubqpvar4yhjqrge@flea>
Date:   Fri, 31 Aug 2018 09:35:00 +0200
From:   Maxime Ripard <maxime.ripard@...tlin.com>
To:     Corentin Labbe <clabbe.montjoie@...il.com>
Cc:     axboe@...nel.dk, hdegoede@...hat.com, kishon@...com,
        mark.rutland@....com, robh+dt@...nel.org, wens@...e.org,
        devicetree@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        linux-ide@...r.kernel.org, linux-kernel@...r.kernel.org,
        linux-sunxi@...glegroups.com, Icenowy Zheng <icenowy@...c.io>
Subject: Re: [PATCH v4 09/13] ARM: dts: sun8i: r40: add sata node

On Thu, Aug 30, 2018 at 09:01:16PM +0200, Corentin Labbe wrote:
> R40 have a sata controller which is the same as A20.
> This patch adds a DT node for it.
> 
> Signed-off-by: Icenowy Zheng <icenowy@...c.io>
> Signed-off-by: Corentin Labbe <clabbe.montjoie@...il.com>
> ---
>  arch/arm/boot/dts/sun8i-r40.dtsi | 23 +++++++++++++++++++++++
>  1 file changed, 23 insertions(+)
> 
> diff --git a/arch/arm/boot/dts/sun8i-r40.dtsi b/arch/arm/boot/dts/sun8i-r40.dtsi
> index 852c2ccc3268..d6b5820da850 100644
> --- a/arch/arm/boot/dts/sun8i-r40.dtsi
> +++ b/arch/arm/boot/dts/sun8i-r40.dtsi
> @@ -550,6 +550,29 @@
>  			#size-cells = <0>;
>  		};
>  
> +		ahci: sata@...8000 {
> +			compatible = "allwinner,sun8i-r40-ahci";
> +			reg = <0x01c18000 0x1000>;
> +			interrupts = <GIC_SPI 56 IRQ_TYPE_LEVEL_HIGH>;
> +			clocks = <&ccu CLK_BUS_SATA>, <&ccu CLK_SATA>;
> +			resets = <&ccu RST_BUS_SATA>;
> +			resets-name = "ahci";
> +			#address-cells = <1>;
> +			#size-cells = <0>;
> +			status = "disabled";
> +
> +			sata_port: sata-port@0 {
> +				reg = <0>;
> +				phys = <&sata_phy>;
> +			};
> +		};
> +
> +		sata_phy: sata-phy@...80c0  {
> +			compatible = "allwinner,sun8i-r40-sata-phy";
> +			reg = <0x1c180c0 0x200>;

Overlapping devices in the DTS is not ok.

Maxime

-- 
Maxime Ripard, Bootlin
Embedded Linux and Kernel engineering
https://bootlin.com

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