diff options
| author | Sascha Hauer <s.hauer@pengutronix.de> | 2022-10-12 15:27:54 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2022-10-23 14:34:52 +0200 |
| commit | 32c6fefb291bf84c5a4dbc7d52b56a1605ed9aae (patch) | |
| tree | d59542ecad08a4b3d3b5c042f6f859c1b31018fc /drivers/usb | |
| parent | usb: dwc2: platform: Improve error reporting for problems during .remove() (diff) | |
| download | linux-32c6fefb291bf84c5a4dbc7d52b56a1605ed9aae.tar.xz linux-32c6fefb291bf84c5a4dbc7d52b56a1605ed9aae.zip | |
usb: phy: generic: make vcc regulator optional
phy-generic uses the existance of the property "vcc-supply" to see if a
regulator is optional or not. Use devm_regulator_get_optional() instead
which exists for this purpose. Using devm_regulator_get_optional()
avoids "supply vcc not found, using dummy regulator" messages.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Link: https://lore.kernel.org/r/20221012132754.292151-1-s.hauer@pengutronix.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/usb')
| -rw-r--r-- | drivers/usb/phy/phy-generic.c | 14 |
1 files changed, 5 insertions, 9 deletions
diff --git a/drivers/usb/phy/phy-generic.c b/drivers/usb/phy/phy-generic.c index 3dc5c04e7cbf..8ed9327cc4a5 100644 --- a/drivers/usb/phy/phy-generic.c +++ b/drivers/usb/phy/phy-generic.c @@ -209,7 +209,7 @@ int usb_phy_gen_create_phy(struct device *dev, struct usb_phy_generic *nop) int err = 0; u32 clk_rate = 0; - bool needs_vcc = false, needs_clk = false; + bool needs_clk = false; if (dev->of_node) { struct device_node *node = dev->of_node; @@ -217,7 +217,6 @@ int usb_phy_gen_create_phy(struct device *dev, struct usb_phy_generic *nop) if (of_property_read_u32(node, "clock-frequency", &clk_rate)) clk_rate = 0; - needs_vcc = of_property_read_bool(node, "vcc-supply"); needs_clk = of_property_read_bool(node, "clocks"); } nop->gpiod_reset = devm_gpiod_get_optional(dev, "reset", @@ -257,13 +256,10 @@ int usb_phy_gen_create_phy(struct device *dev, struct usb_phy_generic *nop) } } - nop->vcc = devm_regulator_get(dev, "vcc"); - if (IS_ERR(nop->vcc)) { - dev_dbg(dev, "Error getting vcc regulator: %ld\n", - PTR_ERR(nop->vcc)); - if (needs_vcc) - return -EPROBE_DEFER; - } + nop->vcc = devm_regulator_get_optional(dev, "vcc"); + if (IS_ERR(nop->vcc) && PTR_ERR(nop->vcc) != -ENODEV) + return dev_err_probe(dev, PTR_ERR(nop->vcc), + "could not get vcc regulator\n"); nop->vbus_draw = devm_regulator_get_exclusive(dev, "vbus"); if (PTR_ERR(nop->vbus_draw) == -ENODEV) |