Re: [PATCH v1 11/20] dt-bindings: pinctrl: Add starfive,jhb100-per1-pinctrl

[Linus Walleij]

Hi Changhuang,

thanks for your patch!

On Fri, Apr 24, 2026 at 1:14 PM Changhuang Liang
<changhuang.liang@xxxxxxxxxxxxxxxx> wrote:

> Add pinctrl bindings for StarFive JHB100 SoC Peripheral-1(per1) pinctrl
> controller.
>
> Signed-off-by: Changhuang Liang <changhuang.liang@xxxxxxxxxxxxxxxx>
(...)

> +  This domain contains 4 IO groups which support voltage levels 1.8V and 3.3V
> +  gpioe-spi - comprises PAD_GPIO_C0 through PAD_GPIO_C4.
> +  gpioe-qspi0 - comprises PAD_GPIO_C5 through PAD_GPIO_C11.
> +  gpioe-qspi1 - comprises PAD_GPIO_C12 through PAD_GPIO_C19.
> +  gpioe-qspi2 - comprises PAD_GPIO_C20 through PAD_GPIO_C27.
> +
> +  Each of the above IO groups must be configured with a voltage setting that matches the external
> +  voltage level provided to the IO group.

So your hardware has groups and support some properties on the group level.

So expose these groups and make these properties configurable per group
instead of inventing per-group properties.

> +  gpioe-spi-vref:
> +  gpioe-qspi0-vref:
> +  gpioe-qspi1-vref:
> +  gpioe-qspi2-vref:

Create proper groups in the pin controller then use the
standard pincfg property power-source = <...>; for this.

Example for a simple default hog:

pinctrl {
    /* Hog the QSPI pins */
    pinctrl-names = "default";
    pinctrl-0 = <&qspi_default>;

    qspi_default: pinctrl-qspi {
        config {
            groups = "gpioe-qspi-pins";
            power-source = <2>;
        };
    };
};

The groups can be orthogonal to other pin handling, that's
fine. Implement .pin_config_group_set in struct pinconf_ops.

> +          starfive,debounce-width:
> +          starfive,drive-i2c-fast-mode:
> +          starfive,drive-i2c-fast-mode-plus:
> +          starfive,i2c-open-drain-pull-up-ohm:

I already adressed these in other review comments. Get rid of
them in favor of standard pinconfig bindings.

Yours,
Linus Walleij