On Fri 09 Apr 06:30 CDT 2021, Serge Semin wrote:
> In accordance with the USB HCD/DRD schema all the USB controllers are
> supposed to have DT-nodes named with prefix "^usb(@.*)?". Since the
> existing DT-nodes will be renamed in a subsequent patch let's fix the DWC3
> Qcom-specific code to detect the DWC3 sub-node just by checking its
> compatible string to match the "snps,dwc3". The semantic of the code
> won't change seeing all the DWC USB3 nodes are supposed to have the
> compatible property with any of those strings set.
>
Reviewed-by: Bjorn Andersson <bjorn.andersson@xxxxxxxxxx>
Regards,
Bjorn
> Signed-off-by: Serge Semin <Sergey.Semin@xxxxxxxxxxxxxxxxxxxx>
>
> ---
>
> Changelog v7:
> - Replace "of_get_child_by_name(np, "usb") ?: of_get_child_by_name(np, "dwc3");"
> pattern with using of_get_compatible_child() method.
> - Discard Bjorn Andersson Reviewed-by tag since the patch content
> has been changed.
> ---
> drivers/usb/dwc3/dwc3-qcom.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/drivers/usb/dwc3/dwc3-qcom.c b/drivers/usb/dwc3/dwc3-qcom.c
> index fcaf04483ad0..617a1be88371 100644
> --- a/drivers/usb/dwc3/dwc3-qcom.c
> +++ b/drivers/usb/dwc3/dwc3-qcom.c
> @@ -644,7 +644,7 @@ static int dwc3_qcom_of_register_core(struct platform_device *pdev)
> struct device *dev = &pdev->dev;
> int ret;
>
> - dwc3_np = of_get_child_by_name(np, "dwc3");
> + dwc3_np = of_get_compatible_child(np, "snps,dwc3");
> if (!dwc3_np) {
> dev_err(dev, "failed to find dwc3 core child\n");
> return -ENODEV;
> --
> 2.30.1
>
