linux-kernel - RE: [PATCH] arm/dts: ls1021a: Add dma-coherent property to usb3 node

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Date:   Wed, 14 Dec 2016 09:44:20 +0000
From:   Jerry Huang <jerry.huang@....com>
To:     Jerry Huang <jerry.huang@....com>,
        "robh+dt@...nel.org" <robh+dt@...nel.org>,
        "mark.rutland@....com" <mark.rutland@....com>,
        "linux@...linux.org.uk" <linux@...linux.org.uk>
CC:     "devicetree@...r.kernel.org" <devicetree@...r.kernel.org>,
        "linux-arm-kernel@...ts.infradead.org" 
        <linux-arm-kernel@...ts.infradead.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        Rajesh Bhagat <rajesh.bhagat@....com>
Subject: RE: [PATCH] arm/dts: ls1021a: Add dma-coherent property to usb3 node


> -----Original Message-----
> From: Changming Huang [mailto:jerry.huang@....com]
> Sent: Wednesday, November 23, 2016 3:15 PM
> To: robh+dt@...nel.org; mark.rutland@....com; linux@...linux.org.uk
> Cc: devicetree@...r.kernel.org; linux-arm-kernel@...ts.infradead.org; linux-
> kernel@...r.kernel.org; Jerry Huang <jerry.huang@....com>; Rajesh
> Bhagat <rajesh.bhagat@....com>
> Subject: [PATCH] arm/dts: ls1021a: Add dma-coherent property to usb3 node
> 
> This sets dma ops as coherent for usb 3.0 platform device
> 
> Signed-off-by: Changming Huang <jerry.huang@....com>
> Signed-off-by: Rajesh Bhagat <rajesh.bhagat@....com>
> ---
>  arch/arm/boot/dts/ls1021a.dtsi |    1 +
>  1 file changed, 1 insertion(+)
> 
> diff --git a/arch/arm/boot/dts/ls1021a.dtsi b/arch/arm/boot/dts/ls1021a.dtsi
> index 368e219..81fb4d9 100644
> --- a/arch/arm/boot/dts/ls1021a.dtsi
> +++ b/arch/arm/boot/dts/ls1021a.dtsi
> @@ -627,6 +627,7 @@
>  			dr_mode = "host";
>  			snps,quirk-frame-length-adjustment = <0x20>;
>  			snps,dis_rxdet_inp3_quirk;
> +			dma-coherent;
>  		};
> 
>  		pcie@...0000 {
> --
How about this property for usb? Any comment for it?