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

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Message-ID: <20171016093229.waizww2n4gwn4qpw@flea.lan>
Date:   Mon, 16 Oct 2017 11:32:29 +0200
From:   Maxime Ripard <maxime.ripard@...e-electrons.com>
To:     Icenowy Zheng <icenowy@...c.io>
Cc:     Chen-Yu Tsai <wens@...e.org>,
        Kishon Vijay Abraham I <kishon@...com>,
        devicetree@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        linux-kernel@...r.kernel.org, linux-sunxi@...glegroups.com,
        Icenowy Zheng <icenowy@...c.xyz>
Subject: Re: [PATCH 2/6] ARM: sun8i: r40: add USB host port nodes for R40

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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