usb: dwc3: st: Rely on child's compatible instead of name

To ensure that child node is found, don't rely on child's node name
which can take different value, but on child's compatible name.

Fixes: f5c5936d6b4d ("usb: dwc3: st: Fix node's child name")
Cc: stable <stable@kernel.org>
Cc: Jerome Audu <jerome.audu@st.com>
Reported-by: Felipe Balbi <felipe@balbi.sh>
Signed-off-by: Patrice Chotard <patrice.chotard@foss.st.com>
Link: https://lore.kernel.org/r/20220930142018.890535-1-patrice.chotard@foss.st.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/usb/dwc3/dwc3-st.c b/drivers/usb/dwc3/dwc3-st.c
index 6c14a79279f9a677a34e0cea71ae651ae7f36d15..fea5290de83fb59de23dccfb58e29ae6daadcf7b 100644 (file)
--- a/drivers/usb/dwc3/dwc3-st.c
+++ b/drivers/usb/dwc3/dwc3-st.c
@@ -251,7 +251,7 @@ static int st_dwc3_probe(struct platform_device *pdev)
        /* Manage SoftReset */
        reset_control_deassert(dwc3_data->rstc_rst);
 
-       child = of_get_child_by_name(node, "usb");
+       child = of_get_compatible_child(node, "snps,dwc3");
        if (!child) {
                dev_err(&pdev->dev, "failed to find dwc3 core node\n");
                ret = -ENODEV;