openwrt/target/linux/ramips/patches-4.9/0069-awake-rt305x-dwc2-cont...

16 lines
434 B
Diff

--- a/drivers/usb/dwc2/platform.c
+++ b/drivers/usb/dwc2/platform.c
@@ -616,6 +616,12 @@ static int dwc2_driver_probe(struct plat
if (retval)
return retval;
+ /* Enable USB port before any regs access */
+ if (dwc2_readl(hsotg->regs + PCGCTL) & 0x0f) {
+ dwc2_writel(0x00, hsotg->regs + PCGCTL);
+ /* TODO: mdelay(25) here? vendor driver don't use it */
+ }
+
retval = dwc2_get_dr_mode(hsotg);
if (retval)
goto error;