On Thu, Oct 19, 2017 at 08:33:20AM +0530, Vinod Koul wrote:

> +	/* device is probed so let's read the properties now */
> +	if (slave->ops && slave->ops->read_prop)
> +		slave->ops->read_prop(slave);

Is it valid for us to not be able to read the properties?

> +		fwnode_property_read_u32(node, "mipi-sdw-port-max-wordlength",
> +						&dpn[i].max_word);
> +		fwnode_property_read_u32(node, "mipi-sdw-port-min-wordlength",
> +						&dpn[i].min_word);

Don't we know this stuff simply by virtue of knowing what device we're
talking to (given that there aren't class devices)?