[PATCH] usb: dwc3: Fix non-usb3 configurations

[Michal Simek]

On 4/25/22 13:26, Jan Kiszka wrote:
> From: Jan Kiszka <jan.kiszka at siemens.com>
> 
> Missing nodes may also be signaled via -ENODATA. We need to check for
> that to prevent failing in non-usb3 setups.
> 
> Furthermore, dev.phy must be NULL'ed in case usb3-phy was not found.
> 
> Fixes: 142d50fbce7c ("usb: dwc3: Add support for usb3-phy PHY configuration")
> Signed-off-by: Jan Kiszka <jan.kiszka at siemens.com>
> ---
>   drivers/usb/dwc3/dwc3-generic.c | 4 +++-
>   1 file changed, 3 insertions(+), 1 deletion(-)
> 
> diff --git a/drivers/usb/dwc3/dwc3-generic.c b/drivers/usb/dwc3/dwc3-generic.c
> index 6e1a1d066b4..c5310e465cb 100644
> --- a/drivers/usb/dwc3/dwc3-generic.c
> +++ b/drivers/usb/dwc3/dwc3-generic.c
> @@ -468,9 +468,11 @@ static int dwc3_glue_probe(struct udevice *dev)
>   		ret = generic_phy_init(&phy);
>   		if (ret)
>   			return ret;
> -	} else if (ret != -ENOENT) {
> +	} else if (ret != -ENOENT && ret != -ENODATA) {
>   		debug("could not get phy (err %d)\n", ret);
>   		return ret;
> +	} else {
> +		phy.dev = NULL;
>   	}
>   
>   	glue->regs = dev_read_addr(dev);

Reviewed-by: Michal Simek <michal.simek at amd.com>

Thanks,
Michal