Re: [PATCH v4 2/4] gpio: rockchip: change the GPIO version judgment logic

[Andy Shevchenko]

On Mon, Nov 11, 2024 at 10:34:10AM +0800, Ye Zhang wrote:
> Have a list of valid IDs and default to -ENODEV.

...

> -	/* If not gpio v2, that is default to v1. */
> -	if (id == GPIO_TYPE_V2 || id == GPIO_TYPE_V2_1) {
> +	switch (id) {
> +	case GPIO_TYPE_V1:

If you leave the V2 case first...

> +		bank->gpio_regs = &gpio_regs_v1;
> +		bank->gpio_type = GPIO_TYPE_V1;
> +		break;
> +	case GPIO_TYPE_V2:
> +	case GPIO_TYPE_V2_1:

...and the v1 case last, the whole diff will be much more understandable and
reviewable.

>  		bank->gpio_regs = &gpio_regs_v2;
>  		bank->gpio_type = GPIO_TYPE_V2;
>  		bank->db_clk = of_clk_get(bank->of_node, 1);
> @@ -677,9 +682,10 @@ static int rockchip_get_bank_data(struct rockchip_pin_bank *bank)
>  			clk_disable_unprepare(bank->clk);
>  			return -EINVAL;
>  		}
> -	} else {
> -		bank->gpio_regs = &gpio_regs_v1;
> -		bank->gpio_type = GPIO_TYPE_V1;
> +		break;
> +	default:
> +		dev_err(bank->dev, "cannot get the version ID\n");
> +		return -ENODEV;
>  	}

-- 
With Best Regards,
Andy Shevchenko