3 files changed, 23 insertions, 6 deletions
diff --git a/drivers/usb/musb/musb_core.h b/drivers/usb/musb/musb_core.h
index 3877249a8b2d..4a1182354e98 100644
--- a/drivers/usb/musb/musb_core.h
+++ b/drivers/usb/musb/musb_core.h
@@ -205,6 +205,7 @@ struct musb_platform_ops {
 	int	(*adjust_channel_params)(struct dma_channel *channel,
 				u16 packet_sz, u8 *mode,
 				dma_addr_t *dma_addr, u32 *len);
+	void	(*clear_ep_rxintr)(struct musb *musb, int epnum);
 };
 
 /*
@@ -590,4 +591,10 @@ static inline int musb_platform_exit(struct musb *musb)
 	return musb->ops->exit(musb);
 }
 
+static inline void musb_platform_clear_ep_rxintr(struct musb *musb, int epnum)
+{
+	if (musb->ops->clear_ep_rxintr)
+		musb->ops->clear_ep_rxintr(musb, epnum);
+}
+
 #endif	/* __MUSB_CORE_H__ */
diff --git a/drivers/usb/musb/musb_dsps.c b/drivers/usb/musb/musb_dsps.c
index dcac5e7f19e0..fad6d5b92df9 100644
--- a/drivers/usb/musb/musb_dsps.c
+++ b/drivers/usb/musb/musb_dsps.c
@@ -301,6 +301,17 @@ static void otg_timer(unsigned long _musb)
 	spin_unlock_irqrestore(&musb->lock, flags);
 }
 
+void dsps_musb_clear_ep_rxintr(struct musb *musb, int epnum)
+{
+	u32 epintr;
+	struct dsps_glue *glue = dev_get_drvdata(musb->controller->parent);
+	const struct dsps_musb_wrapper *wrp = glue->wrp;
+
+	/* musb->lock might already been held */
+	epintr = (1 << epnum) << wrp->rxep_shift;
+	musb_writel(musb->ctrl_base, wrp->epintr_status, epintr);
+}
+
 static irqreturn_t dsps_interrupt(int irq, void *hci)
 {
 	struct musb  *musb = hci;
@@ -647,6 +658,7 @@ static struct musb_platform_ops dsps_ops = {
 	.try_idle	= dsps_musb_try_idle,
 	.set_mode	= dsps_musb_set_mode,
 	.recover	= dsps_musb_recover,
+	.clear_ep_rxintr = dsps_musb_clear_ep_rxintr,
 };
 
 static u64 musb_dmamask = DMA_BIT_MASK(32);
diff --git a/drivers/usb/musb/musb_host.c b/drivers/usb/musb/musb_host.c
index 06853d7c89fd..1d0c096c1b84 100644
--- a/drivers/usb/musb/musb_host.c
+++ b/drivers/usb/musb/musb_host.c
@@ -2273,12 +2273,11 @@ static int musb_cleanup_urb(struct urb *urb, struct musb_qh *qh)
 	int			is_in = usb_pipein(urb->pipe);
 	int			status = 0;
 	u16			csr;
+	struct dma_channel	*dma = NULL;
 
 	musb_ep_select(regs, hw_end);
 
 	if (is_dma_capable()) {
-		struct dma_channel	*dma;
-
 		dma = is_in ? ep->rx_channel : ep->tx_channel;
 		if (dma) {
 			status = ep->musb->dma_controller->channel_abort(dma);
@@ -2295,10 +2294,9 @@ static int musb_cleanup_urb(struct urb *urb, struct musb_qh *qh)
 		/* giveback saves bulk toggle */
 		csr = musb_h_flush_rxfifo(ep, 0);
 
-		/* REVISIT we still get an irq; should likely clear the
-		 * endpoint's irq status here to avoid bogus irqs.
-		 * clearing that status is platform-specific...
-		 */
+		/* clear the endpoint's irq status here to avoid bogus irqs */
+		if (is_dma_capable() && dma)
+			musb_platform_clear_ep_rxintr(musb, ep->epnum);
 	} else if (ep->epnum) {
 		musb_h_tx_flush_fifo(ep);
 		csr = musb_readw(epio, MUSB_TXCSR);