Re: [PATCH 1/2] ARM: sun8i: v3s: add EHCI/OHCI0 device nodes

From: Maxime Ripard
Date: Thu Dec 21 2017 - 10:16:15 EST


Hi,

On Thu, Dec 21, 2017 at 11:05:36PM +0800, Icenowy Zheng wrote:
> The USB PHY 0 on V3s SoC can also be routed to a pair of EHCI/OHCI
> controllers.
>
> Add the device nodes for the controllers.
>
> Signed-off-by: Icenowy Zheng <icenowy@xxxxxxx>
> ---
> arch/arm/boot/dts/sun8i-v3s.dtsi | 19 +++++++++++++++++++
> 1 file changed, 19 insertions(+)
>
> diff --git a/arch/arm/boot/dts/sun8i-v3s.dtsi b/arch/arm/boot/dts/sun8i-v3s.dtsi
> index 443b083c6adc..cc315dc742d2 100644
> --- a/arch/arm/boot/dts/sun8i-v3s.dtsi
> +++ b/arch/arm/boot/dts/sun8i-v3s.dtsi
> @@ -264,6 +264,25 @@
> #phy-cells = <1>;
> };
>
> + ehci0: usb@01c1a000 {
> + compatible = "allwinner,sun8i-v3s-ehci", "generic-ehci";
> + reg = <0x01c1a000 0x100>;
> + interrupts = <GIC_SPI 72 IRQ_TYPE_LEVEL_HIGH>;
> + clocks = <&ccu CLK_BUS_EHCI0>, <&ccu CLK_BUS_OHCI0>;
> + resets = <&ccu RST_BUS_EHCI0>, <&ccu RST_BUS_OHCI0>;

Why are you taking the OHCI clocks and resets in the OHCI node..

> + status = "disabled";
> + };
> +
> + ohci0: usb@01c1a400 {
> + compatible = "allwinner,sun8i-v3s-ohci", "generic-ohci";
> + reg = <0x01c1a400 0x100>;
> + interrupts = <GIC_SPI 73 IRQ_TYPE_LEVEL_HIGH>;
> + clocks = <&ccu CLK_BUS_EHCI0>, <&ccu CLK_BUS_OHCI0>,
> + <&ccu CLK_USB_OHCI0>;
> + resets = <&ccu RST_BUS_EHCI0>, <&ccu RST_BUS_OHCI0>;

... And the EHCI clocks and resets in the OHCI node?

Maxime

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

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