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drivers: udc_dwc2: Fix deactivate when hibernated #98049

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Merged
merged 1 commit into from
Oct 24, 2025
+13 −1
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drivers: udc_dwc2: Fix deactivate when hibernated #98049

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14 changes: 13 additions & 1 deletion drivers/usb/udc/udc_dwc2.c
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Original file line number Diff line number Diff line change
Expand Up @@ -1733,7 +1733,19 @@ static int udc_dwc2_ep_deactivate(const struct device *dev,
mem_addr_t dxepctl_reg;
uint32_t dxepctl;

dxepctl_reg = dwc2_get_dxepctl_reg(dev, cfg->addr);
if (priv->hibernated) {
/* If usbd_disable() is called when core is hibernated, modify
* backup registers instead of real ones.
*/
if (USB_EP_DIR_IS_OUT(cfg->addr)) {
dxepctl_reg = (mem_addr_t)&priv->backup.doepctl[ep_idx];
} else {
dxepctl_reg = (mem_addr_t)&priv->backup.diepctl[ep_idx];
}
} else {
dxepctl_reg = dwc2_get_dxepctl_reg(dev, cfg->addr);
}

dxepctl = sys_read32(dxepctl_reg);

if (dxepctl & USB_DWC2_DEPCTL_USBACTEP) {
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