On Fri, Jan 25, 2019 at 03:21:31AM +0530, Jagan Teki wrote:
[...]
> +static const struct of_device_id st7701_of_match[] = {
> +	{ .compatible = "techstar,ts8550b", .data = &ts8550b_desc },

checkpatch flags techstar as being an undocumented vendor prefix. Can
you please send a patch that adds it?

Thanks,
Thierry