Re: [PATCH v2 2/2] mmc: mtk-sd: add support for AN7581 MMC Host

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On Mon, Jan 20, 2025 at 07:47:02PM +0100, Christian Marangi wrote:
> -			pinctrl_select_state(host->pinctrl, host->pins_uhs);
> +			/* Skip setting uhs pins if not supported */
> +			if (host->pins_uhs)
> +				pinctrl_select_state(host->pinctrl, host->pins_uhs);
>  		} else {
>  			dev_pm_clear_wake_irq(host->dev);
>  		}
> @@ -2816,9 +2835,12 @@ static int msdc_of_clock_parse(struct platform_device *pdev,
>  	if (IS_ERR(host->src_clk))
>  		return PTR_ERR(host->src_clk);
>  
> -	host->h_clk = devm_clk_get(&pdev->dev, "hclk");
> -	if (IS_ERR(host->h_clk))
> -		return PTR_ERR(host->h_clk);
> +	/* AN7581 SoC doesn't have hclk */
> +	if (!device_is_compatible(&pdev->dev, "airoha,an7581-mmc")) {

Please avoid coding compatible in multiple places. Not only because
above check is slow comparing to check on integer, but it just scales
poorly and leads to less readable further code. Use driver data with
model name or flags/quirks bitmask.

Best regards,
Krzysztof





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