From 37e3ee991091e08d4902e3d2694c723446a89a8d Mon Sep 17 00:00:00 2001 From: Sergei Shtylyov Date: Fri, 27 Mar 2009 12:53:32 -0700 Subject: musb_gadget: suppress "parasitic" TX interrupts with CPPI Suppress "parasitic" endpoint interrupts in the DMA mode when using CPPI DMA driver; they're caused by the MUSB gadget driver using the DMA request mode 0 instead of the mode 1. Signed-off-by: Sergei Shtylyov Signed-off-by: David Brownell Signed-off-by: Greg Kroah-Hartman --- drivers/usb/musb/musb_gadget.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) (limited to 'drivers/usb/musb') diff --git a/drivers/usb/musb/musb_gadget.c b/drivers/usb/musb/musb_gadget.c index f79440cdfe7..bc197b28ac4 100644 --- a/drivers/usb/musb/musb_gadget.c +++ b/drivers/usb/musb/musb_gadget.c @@ -349,7 +349,8 @@ static void txstate(struct musb *musb, struct musb_request *req) #elif defined(CONFIG_USB_TI_CPPI_DMA) /* program endpoint CSR first, then setup DMA */ csr &= ~(MUSB_TXCSR_P_UNDERRUN | MUSB_TXCSR_TXPKTRDY); - csr |= MUSB_TXCSR_MODE | MUSB_TXCSR_DMAENAB; + csr |= MUSB_TXCSR_DMAENAB | MUSB_TXCSR_DMAMODE | + MUSB_TXCSR_MODE; musb_writew(epio, MUSB_TXCSR, (MUSB_TXCSR_P_WZC_BITS & ~MUSB_TXCSR_P_UNDERRUN) | csr); -- cgit v1.2.3