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

Greg KH
2021-04-05T07:03:25Z

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@gmail.com>
> ---
> 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