From: Patrice Chotard <patrice.chotard@foss.st.com>
Date: Fri, 30 Sep 2022 14:20:18 +0000 (+0200)
Subject: usb: dwc3: st: Rely on child's compatible instead of name
X-Git-Tag: v6.0.7~210
X-Git-Url: http://git.ipfire.org/gitweb.cgi?a=commitdiff_plain;h=d3a2e492e95173d714ae707d6c3f6ab363306758;p=thirdparty%2Fkernel%2Fstable.git

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

commit 3f53c329b31d53b2a2e7992819242fc0d4f883e0 upstream.

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 6c14a79279f9a..fea5290de83fb 100644
--- 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;