Enable the usb33d-supply on STM32MP1 SoCs (with "st,stm32mp1-hsotg" compatible), it is the external VBUS and ID sensing comparators supply needed to perform OTG operation.
Signed-off-by: Patrick Delaunay patrick.delaunay@st.com ---
drivers/usb/host/dwc2.c | 18 ++++++++++++++++++ 1 file changed, 18 insertions(+)
diff --git a/drivers/usb/host/dwc2.c b/drivers/usb/host/dwc2.c index 3086411fc4..5b499abded 100644 --- a/drivers/usb/host/dwc2.c +++ b/drivers/usb/host/dwc2.c @@ -1414,6 +1414,24 @@ static int dwc2_usb_probe(struct udevice *dev) if (ret) return ret;
+ if (CONFIG_IS_ENABLED(ARCH_STM32MP) && + device_is_compatible(dev, "st,stm32mp1-hsotg")) { + struct udevice *usb33d_supply; + + ret = device_get_supply_regulator(dev, "usb33d-supply", + &usb33d_supply); + if (ret) { + dev_err(dev, + "can't get voltage level detector supply\n"); + } else { + ret = regulator_set_enable(usb33d_supply, true); + if (ret) { + dev_err(dev, + "can't enable voltage level detector supply\n"); + } + } + } + return dwc2_init_common(dev, priv); }