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From fce20ac5d8c98f1a8ea5298051d9fa669e455f04 Mon Sep 17 00:00:00 2001
From: Hans de Goede <hdegoede@redhat.com>
Date: Tue, 4 Aug 2015 23:22:45 +0200
Subject: [PATCH] musb: sunxi: Ignore VBus errors in host-only mode
For some unclear reason sometimes we get VBus errors in host-only mode,
even though we do not have any vbus-detection then. Ignore these.
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
---
drivers/usb/musb/sunxi.c | 4 ++++
1 file changed, 4 insertions(+)
--- a/drivers/usb/musb/sunxi.c
+++ b/drivers/usb/musb/sunxi.c
@@ -192,6 +192,10 @@ static irqreturn_t sunxi_musb_interrupt(
musb_writeb(musb->mregs, MUSB_FADDR, 0);
}
+ /* Ignore Vbus errors when in host only mode */
+ if (musb->port_mode == MUSB_PORT_MODE_HOST)
+ musb->int_usb &= ~MUSB_INTR_VBUSERROR;
+
musb->int_tx = readw(musb->mregs + SUNXI_MUSB_INTRTX);
if (musb->int_tx)
writew(musb->int_tx, musb->mregs + SUNXI_MUSB_INTRTX);
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