usb: phy: generic: Get the vbus supply

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@kernel.org>
Signed-off-by: Sean Anderson <sean.anderson@seco.com>
Link: https://lore.kernel.org/r/20220425171412.1188485-3-sean.anderson@seco.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/usb/phy/phy-generic.c b/drivers/usb/phy/phy-generic.c
index 661a229c105ddd171438c71e3ef7f5964cab6d2d..34b9f8140187182f334014125c1f9eb745c627b0 100644 (file)
--- 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 *dev, struct usb_phy_generic *nop)
                        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";