[PATCH 5.10 027/129] usb: phy: generic: Get the vbus supply

[Greg Kroah-Hartman]

From: Sean Anderson <sean.anderson@xxxxxxxx>

commit 03e607cbb2931374db1825f371e9c7f28526d3f4 upstream.

While support for working with a vbus was added, the regulator was never
actually gotten (despite what was documented). Fix this by actually
getting the supply from the device tree.

Fixes: 7acc9973e3c4 ("usb: phy: generic: add vbus support")
Cc: stable <stable@xxxxxxxxxx>
Signed-off-by: Sean Anderson <sean.anderson@xxxxxxxx>
Link: https://lore.kernel.org/r/20220425171412.1188485-3-sean.anderson@xxxxxxxx
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
 drivers/usb/phy/phy-generic.c |    7 +++++++
 1 file changed, 7 insertions(+)

--- a/drivers/usb/phy/phy-generic.c
+++ b/drivers/usb/phy/phy-generic.c
@@ -268,6 +268,13 @@ int usb_phy_gen_create_phy(struct device
 			return -EPROBE_DEFER;
 	}
 
+	nop->vbus_draw = devm_regulator_get_exclusive(dev, "vbus");
+	if (PTR_ERR(nop->vbus_draw) == -ENODEV)
+		nop->vbus_draw = NULL;
+	if (IS_ERR(nop->vbus_draw))
+		return dev_err_probe(dev, PTR_ERR(nop->vbus_draw),
+				     "could not get vbus regulator\n");
+
 	nop->dev		= dev;
 	nop->phy.dev		= nop->dev;
 	nop->phy.label		= "nop-xceiv";