rk322x: keep usb resets deasserted on exit

uboot default behaviour is the assert resets when
it has to pass control to the kernel.
This may cause compatibility issues if the kernel
driver is not instructed to properly deassert the resets,
so we change the uboot behaviour for dwc and ehci usb
drivers to deassert reset on exit.

patch/u-boot/v2024.01/board_rk322x-box/rk322x-add-usb-reset-props.patch

@@ -47,6 +47,41 @@ index 8eed9e3a92..ffe503e5db 100644
  		status = "disabled";
  	};
 
+diff --git a/drivers/usb/host/dwc2.c b/drivers/usb/host/dwc2.c
+index 936e30438d..09d3805e78 100644
+--- a/drivers/usb/host/dwc2.c
++++ b/drivers/usb/host/dwc2.c
+@@ -1436,7 +1438,10 @@ static int dwc2_usb_remove(struct udevice *dev)
+ 
+ 	dwc2_uninit_common(priv->regs);
+ 
+-	reset_release_bulk(&priv->resets);
++	// Assert first and then leave the resets deasserted
++	reset_assert_bulk(&priv->resets);
++	reset_deassert_bulk(&priv->resets);
++
+ 	clk_disable_bulk(&priv->clks);
+ 	clk_release_bulk(&priv->clks);
+ 
+diff --git a/drivers/usb/host/ehci-generic.c b/drivers/usb/host/ehci-generic.c
+index 936e30438d..09d3805e78 100644
+--- a/drivers/usb/host/ehci-generic.c
++++ b/drivers/usb/host/ehci-generic.c
+@@ -148,9 +148,9 @@ static int ehci_usb_remove(struct udevice *dev)
+ 	if (ret)
+ 		return ret;
+ 
+-	ret = reset_release_bulk(&priv->resets);
+-	if (ret)
+-		return ret;
++	// Assert first and then leave the resets deasserted
++	reset_assert_bulk(&priv->resets);
++	reset_deassert_bulk(&priv->resets);
+ 
+ 	return clk_release_bulk(&priv->clocks);
+ }
 -- 
 2.34.1
 
+
+