linux-kernel - [PATCH v2 2/4] usb: phy: generic: Get the vbus supply

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Date:   Mon, 25 Apr 2022 13:14:09 -0400
From:   Sean Anderson <sean.anderson@...o.com>
To:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        linux-usb@...r.kernel.org
Cc:     Mike Looijmans <mike.looijmans@...ic.nl>,
        Linus Walleij <linus.walleij@...aro.org>,
        Jules Maselbas <jmaselbas@...ray.eu>,
        Felipe Balbi <balbi@...nel.org>,
        Jonathan Hunter <jonathanh@...dia.com>,
        linux-kernel@...r.kernel.org,
        Robert Jarzmik <robert.jarzmik@...e.fr>,
        Sean Anderson <sean.anderson@...o.com>
Subject: [PATCH v2 2/4] usb: phy: generic: Get the vbus supply

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")
Signed-off-by: Sean Anderson <sean.anderson@...o.com>
---

(no changes since v1)

 drivers/usb/phy/phy-generic.c | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/drivers/usb/phy/phy-generic.c b/drivers/usb/phy/phy-generic.c
index 661a229c105d..34b9f8140187 100644
--- 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";
-- 
2.35.1.1320.gc452695387.dirty