On Mon, Mar 29, 2021 at 04:58:36PM +0800, Tian Tao wrote:

> +	spi_data = (struct davinci_spi_of_data *)
> +			of_device_get_match_data(&pdev->dev);
> +	if (!spi_data)

If we need to cast away from void * that's most likely pointing at a
bug.