linux-kernel - Re: [PATCH v2 1/3] arm64: dts: add USB1-related nodes of Allwinner A64

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Date:   Wed, 23 Nov 2016 09:08:36 +0100
From:   Maxime Ripard <maxime.ripard@...e-electrons.com>
To:     Icenowy Zheng <icenowy@...c.xyz>
Cc:     Chen-Yu Tsai <wens@...e.org>, Rob Herring <robh+dt@...nel.org>,
        Mark Rutland <mark.rutland@....com>,
        Catalin Marinas <catalin.marinas@....com>,
        Will Deacon <will.deacon@....com>,
        linux-arm-kernel@...ts.infradead.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH v2 1/3] arm64: dts: add USB1-related nodes of Allwinner
 A64

On Tue, Nov 22, 2016 at 11:58:29PM +0800, Icenowy Zheng wrote:
> Allwinner A64 have two HCI USB controllers, a OTG controller and a USB
> PHY device which have two ports. One of the port is wired to both a HCI
> USB controller and the OTG controller, which is currently not supported.
> The another one is only wired to a HCI controller, and the device node of
> OHCI/EHCI controller of the port can be added now.
> 
> Also the A64 USB PHY device node is also added for the HCI controllers to
> work.
> 
> Signed-off-by: Icenowy Zheng <icenowy@...c.xyz>
> ---
> Changes since v1:
> - Remove manual CLK_USB_OHCI0 gate, as it's dealed by ccu driver now.
> - Sort the nodes and fixed {e,o}hci1 regs.
>  arch/arm64/boot/dts/allwinner/sun50i-a64.dtsi | 44 +++++++++++++++++++++++++++
>  1 file changed, 44 insertions(+)
> 
> diff --git a/arch/arm64/boot/dts/allwinner/sun50i-a64.dtsi b/arch/arm64/boot/dts/allwinner/sun50i-a64.dtsi
> index 3d70be3..2572dd6 100644
> --- a/arch/arm64/boot/dts/allwinner/sun50i-a64.dtsi
> +++ b/arch/arm64/boot/dts/allwinner/sun50i-a64.dtsi
> @@ -122,6 +122,50 @@
>  		#size-cells = <1>;
>  		ranges;
>  
> +		usbphy: phy@...19400 {
> +			compatible = "allwinner,sun50i-a64-usb-phy";
> +			reg = <0x01c19400 0x14>,
> +			      <0x01c1b800 0x4>;
> +			reg-names = "phy_ctrl",
> +				    "pmu1";
> +			clocks = <&ccu CLK_USB_PHY0>,
> +				 <&ccu CLK_USB_PHY1>;
> +			clock-names = "usb0_phy",
> +				      "usb1_phy";
> +			resets = <&ccu RST_USB_PHY0>,
> +				 <&ccu RST_USB_PHY1>;
> +			reset-names = "usb0_reset",
> +				      "usb1_reset";
> +			status = "disabled";
> +			#phy-cells = <1>;
> +		};
> +
> +		ohci1: usb@...1b400 {
> +			compatible = "allwinner,sun50i-a64-ohci", "generic-ohci";
> +			reg = <0x01c1b400 0x100>;
> +			interrupts = <GIC_SPI 75 IRQ_TYPE_LEVEL_HIGH>;
> +			clocks = <&ccu CLK_BUS_OHCI1>,
> +				 <&ccu CLK_USB_OHCI1>;
> +			resets = <&ccu RST_BUS_OHCI1>;
> +			phys = <&usbphy 1>;
> +			phy-names = "usb";
> +			status = "disabled";
> +		};
> +
> +		ehci1: usb@...1b000 {
> +			compatible = "allwinner,sun50i-a64-ehci", "generic-ehci";
> +			reg = <0x01c1b000 0x100>;
> +			interrupts = <GIC_SPI 74 IRQ_TYPE_LEVEL_HIGH>;
> +			clocks = <&ccu CLK_BUS_OHCI1>,
> +				 <&ccu CLK_BUS_EHCI1>,
> +				 <&ccu CLK_USB_OHCI1>;
> +			resets = <&ccu RST_BUS_OHCI1>,
> +				 <&ccu RST_BUS_EHCI1>;
> +			phys = <&usbphy 1>;
> +			phy-names = "usb";
> +			status = "disabled";
> +		};

The nodes were inverted, also, please use "arm64: dts: allwinner:" for
your prefix in the future.

I fixed both issues and queued for 4.11.

Thanks!
Maxime

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

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