linux-kernel - [PATCH 4.19 134/148] usb: phy: generic: Get the vbus supply

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Message-ID: <20240324235012.1356413-135-sashal@kernel.org>
Date: Sun, 24 Mar 2024 19:49:58 -0400
From: Sasha Levin <sashal@...nel.org>
To: linux-kernel@...r.kernel.org,
	stable@...r.kernel.org
Cc: Sean Anderson <sean.anderson@...o.com>,
	stable <stable@...nel.org>,
	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	Sasha Levin <sashal@...nel.org>
Subject: [PATCH 4.19 134/148] usb: phy: generic: Get the vbus supply

From: Sean Anderson <sean.anderson@...o.com>

[ Upstream commit 03e607cbb2931374db1825f371e9c7f28526d3f4 ]

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@...nel.org>
Signed-off-by: Sean Anderson <sean.anderson@...o.com>
Link: https://lore.kernel.org/r/20220425171412.1188485-3-sean.anderson@seco.com
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Signed-off-by: Sasha Levin <sashal@...nel.org>
---
 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 a53b89be53248..8a04b157f19f3 100644
--- a/drivers/usb/phy/phy-generic.c
+++ b/drivers/usb/phy/phy-generic.c
@@ -283,6 +283,13 @@ 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";
-- 
2.43.0