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[U-Boot,v2,07/10] musb: sunxi: Force EP0 on re-enable

Message ID 1438700653-23603-8-git-send-email-hdegoede@redhat.com
State Accepted
Delegated to: Marek Vasut
Headers show

Commit Message

Hans de Goede Aug. 4, 2015, 3:04 p.m. UTC 
From: Maxime Ripard <maxime.ripard@free-electrons.com>

Currently, the second use of a gadget will fail, while the first one works.

Forcing the EP0 at every enable fix this issue.

Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
---
 drivers/usb/musb-new/sunxi.c | 3 +++
 1 file changed, 3 insertions(+)
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Patch

diff --git a/drivers/usb/musb-new/sunxi.c b/drivers/usb/musb-new/sunxi.c
index 85ac28d..16a264a 100644
--- a/drivers/usb/musb-new/sunxi.c
+++ b/drivers/usb/musb-new/sunxi.c
@@ -200,6 +200,9 @@  static int sunxi_musb_enable(struct musb *musb)
 
 	pr_debug("%s():\n", __func__);
 
+	musb_ep_select(musb->mregs, 0);
+	musb_writeb(musb->mregs, MUSB_FADDR, 0);
+
 	if (enabled)
 		return 0;