Re: [PATCH v1 11/17] drm/mediatek: hdmi: add mt8195 support

[Krzysztof Kozlowski]

On 19/09/2022 18:56, Guillaume Ranquet wrote:
> Adds hdmi and hdmi-ddc support for mt8195.
> 
> Signed-off-by: Guillaume Ranquet <granquet@xxxxxxxxxxxx>


> +static int mtk_hdmi_ddc_probe(struct platform_device *pdev)
> +{
> +	struct device *dev = &pdev->dev;
> +	struct mtk_hdmi_ddc *ddc;
> +	int ret;
> +
> +	ddc = devm_kzalloc(dev, sizeof(struct mtk_hdmi_ddc), GFP_KERNEL);
> +	if (!ddc)
> +		return -ENOMEM;
> +
> +	ddc->regs = syscon_regmap_lookup_by_compatible("mediatek,mt8195-hdmi");

That's not how you get regmaps. If you the driver grows, are you going
to grow the list to e.g. 10 syscon_regmap_lookup_by_compatible() calls?
This has to be by phandle.

Best regards,
Krzysztof