On Fri, Aug 14, 2020 at 06:45:53PM +0800, Jiaxin Yu wrote:

This looks mostly good, a couple of very small things:

> +	ret = regulator_enable(priv->avdd_reg);
> +	if (ret) {
> +		dev_err(&pdev->dev, "%s(), failed to enable regulator!\n",
> +			__func__);
> +		return ret;
> +	}

You need a remove() function to undo this enable.

> +	dev_info(&pdev->dev, "%s(), dev name %s\n",
> +		 __func__, dev_name(&pdev->dev));

This isn't really adding anything, just remove it - it's not reading
info from the hardware or anything.