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

[Jerry Huang]

> -----Original Message-----
> From: Changming Huang [mailto:jerry.huang@xxxxxxx]
> Sent: Wednesday, November 23, 2016 3:15 PM
> To: robh+dt@xxxxxxxxxx; mark.rutland@xxxxxxx; linux@xxxxxxxxxxxxxxx
> Cc: devicetree@xxxxxxxxxxxxxxx; linux-arm-kernel@xxxxxxxxxxxxxxxxxxx; linux-
> kernel@xxxxxxxxxxxxxxx; Jerry Huang <jerry.huang@xxxxxxx>; Rajesh
> Bhagat <rajesh.bhagat@xxxxxxx>
> 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@xxxxxxx>
> Signed-off-by: Rajesh Bhagat <rajesh.bhagat@xxxxxxx>
> ---
>  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@3400000 {
> --
How about this property for usb? Any comment for it?