usb: dwc2: gadget: Enable the BNA interrupt

Enable the BNA (Buffer Not Available) interrupt in descriptor DMA mode. Signed-off-by: Vahram Aharonyan <vahrama@synopsys.com> Signed-off-by: John Youn <johnyoun@synopsys.com> Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
mariux64 · Nov 18, 2016 · ec01f0b · ec01f0b
1 parent 540ccba
commit ec01f0b
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diff --git a/drivers/usb/dwc2/gadget.c b/drivers/usb/dwc2/gadget.c
@@ -3227,6 +3227,10 @@ void dwc2_hsotg_core_init_disconnected(struct dwc2_hsotg *hsotg,
 		DOEPMSK_SETUPMSK,
 		hsotg->regs + DOEPMSK);
 
+	/* Enable BNA interrupt for DDMA */
+	if (using_desc_dma(hsotg))
+		__orr32(hsotg->regs + DOEPMSK, DOEPMSK_BNAMSK);
+
 	dwc2_writel(0, hsotg->regs + DAINTMSK);
 
 	dev_dbg(hsotg->dev, "EP0: DIEPCTL0=0x%08x, DOEPCTL0=0x%08x\n",

diff --git a/drivers/usb/dwc2/hw.h b/drivers/usb/dwc2/hw.h
@@ -474,6 +474,7 @@
 #define DIEPMSK_XFERCOMPLMSK		(1 << 0)
 
 #define DOEPMSK				HSOTG_REG(0x814)
+#define DOEPMSK_BNAMSK			(1 << 9)
 #define DOEPMSK_BACK2BACKSETUP		(1 << 6)
 #define DOEPMSK_STSPHSERCVDMSK		(1 << 5)
 #define DOEPMSK_OUTTKNEPDISMSK		(1 << 4)