Re: [PATCH v6 1/4] usb: dwc3: of-simple: bail probe if no dwc3 child node

[Greg KH]

On Thu, Apr 01, 2021 at 11:36:49PM +0200, Johan Jonker wrote:
> For some of the dwc3-of-simple compatible SoCs we
> don't want to bind this driver to a dwc3 node,
> but bind that node to the 'snps,dwc3' driver instead.
> The kernel has no logic to decide which driver to bind
> to if there are 2 matching drivers, so bail probe if no
> dwc3 child node.
> 
> Signed-off-by: Johan Jonker <jbx6244@xxxxxxxxx>
> ---
>  drivers/usb/dwc3/dwc3-of-simple.c | 4 ++++
>  1 file changed, 4 insertions(+)
> 
> diff --git a/drivers/usb/dwc3/dwc3-of-simple.c b/drivers/usb/dwc3/dwc3-of-simple.c
> index 71fd620c5..8d3baa5df 100644
> --- a/drivers/usb/dwc3/dwc3-of-simple.c
> +++ b/drivers/usb/dwc3/dwc3-of-simple.c
> @@ -38,6 +38,10 @@ static int dwc3_of_simple_probe(struct platform_device *pdev)
>  
>  	int			ret;
>  
> +	/* Bail probe if no dwc3 child node. */
> +	if (!of_get_compatible_child(dev->of_node, "snps,dwc3"))
> +		return -ENODEV;

Why is this part of the "convert to yaml" patch series?  Shouldn't this
be a separate, independant patch?

thanks,

greg k-h