Some meson targets are using a fixed regulator about usb. It's always returning to EARLEADY, so driver doesn't init fine. To prevent this problem, use the regulator_set_enable_if_allowed instead of regulator_set_enable.
Fixes: 4fcba5d556b ("regulator: implement basic reference counter")
Signed-off-by: Jaehoon Chung jh80.chung@samsung.com --- drivers/usb/dwc3/dwc3-meson-g12a.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/usb/dwc3/dwc3-meson-g12a.c b/drivers/usb/dwc3/dwc3-meson-g12a.c index e0356e653fcc..59276483c19d 100644 --- a/drivers/usb/dwc3/dwc3-meson-g12a.c +++ b/drivers/usb/dwc3/dwc3-meson-g12a.c @@ -291,7 +291,7 @@ int dwc3_meson_g12a_force_mode(struct udevice *dev, enum usb_dr_mode mode)
#if CONFIG_IS_ENABLED(DM_REGULATOR) if (priv->vbus_supply) { - int ret = regulator_set_enable(priv->vbus_supply, + int ret = regulator_set_enable_if_allowed(priv->vbus_supply, (mode == USB_DR_MODE_PERIPHERAL)); if (ret) return ret; @@ -420,7 +420,7 @@ static int dwc3_meson_g12a_probe(struct udevice *dev) }
if (priv->vbus_supply) { - ret = regulator_set_enable(priv->vbus_supply, true); + ret = regulator_set_enable_if_allowed(priv->vbus_supply, true); if (ret) return ret; }