Re: [PATCH 1/3] ARM: dts: r8a7742-iwg21d-q7: Enable HSUSB, USB2.0 and XHCI

[Geert Uytterhoeven]

Hi Prabhakar,

On Wed, May 27, 2020 at 10:24 PM Lad Prabhakar
<prabhakar.mahadev-lad.rj@xxxxxxxxxxxxxx> wrote:
> Enable support for HSUB, USB2.0 and xhci on iWave RZ/G1H carrier board.
>
> Signed-off-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@xxxxxxxxxxxxxx>
> Reviewed-by: Marian-Cristian Rotariu <marian-cristian.rotariu.rb@xxxxxxxxxxxxxx>

Thanks for your patch!

> --- a/arch/arm/boot/dts/r8a7742-iwg21d-q7.dts
> +++ b/arch/arm/boot/dts/r8a7742-iwg21d-q7.dts

> @@ -88,6 +114,21 @@
>                 function = "sdhi2";
>                 power-source = <1800>;
>         };
> +
> +       usb0_pins: usb0 {
> +               groups = "usb0";
> +               function = "usb0";
> +       };
> +
> +       usb1_pins: usb1 {
> +               groups = "usb1";
> +               function = "usb1";
> +       };
> +
> +       usb2_pins: usb2 {
> +               groups = "usb2";
> +               function = "usb2";
> +       };
>  };

Looking at the schematics[*], I'm having a hard time making some sense
out of this.

GP5_21 (USB1_OVC) seems to be GPIO_AVB_SEL, and
GP5_22 (USB2_PWEN) is GPIO_SD1_LED?

I must be missing something?

[*] *RZ_G1H_SOM.pdf, *RZ_G1M_G1N_G1H_Q7 carrierBoard.pdf

Gr{oetje,eeting}s,

                        Geert

-- 
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@xxxxxxxxxxxxxx

In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
                                -- Linus Torvalds