RE: [EXT] Re: [PATCH v2 2/3] arm64: dts: imx8qxp: add cadence usb3 support

[Frank Li]

> 
> Caution: EXT Email
> 
> Am Donnerstag, 16. März 2023, 22:27:10 CET schrieb Frank Li:
> > There are cadence usb3.0 controller in 8qxp and 8qm.
> > Add usb3 node at common connect subsystem.
> >
> > Signed-off-by: Frank Li <Frank.Li@xxxxxxx>
> > ---
> >  .../boot/dts/freescale/imx8-ss-conn.dtsi      | 72 +++++++++++++++++++
> >  1 file changed, 72 insertions(+)
> >
> > diff --git a/arch/arm64/boot/dts/freescale/imx8-ss-conn.dtsi
> > b/arch/arm64/boot/dts/freescale/imx8-ss-conn.dtsi index
> > 4852760adeee..389f52f16a5c 100644
> > --- a/arch/arm64/boot/dts/freescale/imx8-ss-conn.dtsi
> > +++ b/arch/arm64/boot/dts/freescale/imx8-ss-conn.dtsi
> > @@ -138,6 +138,56 @@ fec2: ethernet@5b050000 {
> >               status = "disabled";
> >       };
> >
> > +     usbotg3: usb@5b110000 {
> > +             compatible = "fsl,imx8qm-usb3";
> 
> Mh, is imx8qm considered a subset of imx8qxp or vice versa?
> Maybe it's worth adding a dedicated compatible for imx8qxp as well.

Imx8qxp is subset of imx8qm.
This part is the same between qxp and qm. 
If exact same,  I think not necessary to add compatible string. 

> 
> Best regards,
> Alexander
> 
> > +             #address-cells = <1>;
> > +             #size-cells = <1>;
> > +             ranges;
> > +             reg = <0x5b110000 0x10000>;
> > +             clocks = <&usb3_lpcg IMX_LPCG_CLK_1>,
> > +                      <&usb3_lpcg IMX_LPCG_CLK_0>,
> > +                      <&usb3_lpcg IMX_LPCG_CLK_7>,
>