From: Vahram Aharonyan <vahrama@xxxxxxxxxxxx> Enable the BNA (Buffer Not Available) interrupt in descriptor DMA mode. Signed-off-by: Vahram Aharonyan <vahrama@xxxxxxxxxxxx> Signed-off-by: John Youn <johnyoun@xxxxxxxxxxxx> --- drivers/usb/dwc2/gadget.c | 4 ++++ drivers/usb/dwc2/hw.h | 1 + 2 files changed, 5 insertions(+) diff --git a/drivers/usb/dwc2/gadget.c b/drivers/usb/dwc2/gadget.c index 6f74a3f..9f28756 100644 --- 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 index 631396b..5be056b 100644 --- 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) -- 2.10.0 -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
