Re: [PATCH 2/6] ARM: sun8i: r40: add USB host port nodes for R40

From: Maxime Ripard
Date: Mon Oct 16 2017 - 05:32:48 EST


On Tue, Oct 10, 2017 at 07:24:28AM +0800, Icenowy Zheng wrote:
> >> + interrupts = <GIC_SPI 76 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>;
> >
> >Why do you need to take the OHCI resources too?
>
> AW's strange design -- without OHCI resources taken EHCI
> won't work.

How has this been tested?

Thanks!
Maxime

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

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