From: Simon Glass <sjg@chromium.org>
Date: Wed, 25 Mar 2015 18:22:38 +0000 (-0600)
Subject: dm: usb: sandbox: Reset emulation devices in usb stop()
X-Git-Tag: v2015.07-rc1~211
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=095fdef081c77fc79c719031e28b2925523873c9;p=platform%2Fkernel%2Fu-boot.git

dm: usb: sandbox: Reset emulation devices in usb stop()

These devices must have their addresses removed ready for the next USB
bus enumeration. Add this logic to usb_stop().

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Marek Vasut <marex@denx.de>
---

diff --git a/drivers/usb/host/usb-uclass.c b/drivers/usb/host/usb-uclass.c
index 29ef5d9..714bc0e 100644
--- a/drivers/usb/host/usb-uclass.c
+++ b/drivers/usb/host/usb-uclass.c
@@ -93,6 +93,17 @@ int usb_stop(void)
 			err = ret;
 	}
 
+#ifdef CONFIG_SANDBOX
+	struct udevice *dev;
+
+	/* Reset all enulation devices */
+	ret = uclass_get(UCLASS_USB_EMUL, &uc);
+	if (ret)
+		return ret;
+
+	uclass_foreach_dev(dev, uc)
+		usb_emul_reset(dev);
+#endif
 	usb_stor_reset();
 	usb_hub_reset();
 	usb_started = 0;