[PATCH] musb: sunxi: Ignore VBus errors in host-only mode

Hans de Goede
2015-08-04T21:25:53Z

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(+)

diff --git a/drivers/usb/musb/sunxi.c b/drivers/usb/musb/sunxi.c
index f9f6304..34ce5df 100644
--- a/drivers/usb/musb/sunxi.c
+++ b/drivers/usb/musb/sunxi.c
@@ -194,6 +194,10 @@ static irqreturn_t sunxi_musb_interrupt(int irq, void *__hci)
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);
--
2.4.3