The patch below does not apply to the 4.14-stable tree. If someone wants it applied there, or to any other stable or longterm tree, then please email the backport, including the original git commit id to stable@vger.kernel.org.
thanks,
greg k-h
------------------ original commit in Linus's tree ------------------
From 03e607cbb2931374db1825f371e9c7f28526d3f4 Mon Sep 17 00:00:00 2001 From: Sean Anderson sean.anderson@seco.com Date: Mon, 25 Apr 2022 13:14:09 -0400 Subject: [PATCH] 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") 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 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";