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

[icenowy]

å 2017-10-16 17:32ïMaxime Ripard åéï
> 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?

As EHCI is probed before OHCI, this behavior is easy to
appear if the OHCI resources are removed.

> Thanks!
> Maxime
>
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