RE: [EXT] [PATCH 1/1] arm64: dts: imx8: fix USB 3.0 Gadget Failure in QM & QXPB0 at super speed

[Frank Li]

> 
> Caution: EXT Email
> 
> Resolve USB 3.0 gadget failure for QM and QXPB0 in super speed mode with
> single
> IN and OUT endpoints, like mass storage devices, due to incorrect
> ACTUAL_MEM_SIZE in ep_cap2 (32k instead of actual 18k). Implement dt
> property
> cdns,on-chip-buff-size to override ep_cap2 and set it to 18k for imx8QM and
> imx8QXP chips. No adverse effects for 8QXP C0.
> 
> Fixes: dce49449e04ff ("usb: cdns3: allocate TX FIFO size according to
> composite EP number")
> 
> Signed-off-by: Frank Li <Frank.Li@xxxxxxx>
> ---

Shawn:
Ping, it is important fixes for 8qm.

>  arch/arm64/boot/dts/freescale/imx8-ss-conn.dtsi | 1 +
>  1 file changed, 1 insertion(+)
> 
> diff --git a/arch/arm64/boot/dts/freescale/imx8-ss-conn.dtsi
> b/arch/arm64/boot/dts/freescale/imx8-ss-conn.dtsi
> index b32c2e199c160..030c273c8be40 100644
> --- a/arch/arm64/boot/dts/freescale/imx8-ss-conn.dtsi
> +++ b/arch/arm64/boot/dts/freescale/imx8-ss-conn.dtsi
> @@ -171,6 +171,7 @@ usbotg3_cdns3: usb@5b120000 {
>                         interrupt-names = "host", "peripheral", "otg", "wakeup";
>                         phys = <&usb3_phy>;
>                         phy-names = "cdns3,usb3-phy";
> +                       cdns,on-chip-buff-size = /bits/ 16 <18>;
>                         status = "disabled";
>                 };
>         };
> --
> 2.34.1