usb: musb: clear AUTOSET while clearing DMAENAB

On the completion of tx dma, dma is disabled by clearing MUSB_TXCSR_DMAENAB in
TXCSR. If MUSB_TXCSR_AUTOSET was set in txstate() it will remain set although
it is not needed in PIO mode. Clear it as soon as it is not needed.

Signed-off-by: Mian Yousaf Kaukab <mian.yousaf.kaukab@stericsson.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>

diff --git a/drivers/usb/musb/musb_gadget.c b/drivers/usb/musb/musb_gadget.c
index 98519c5..9ecb057 100644 (file)
--- a/drivers/usb/musb/musb_gadget.c
+++ b/drivers/usb/musb/musb_gadget.c
@@ -535,7 +535,7 @@ void musb_g_tx(struct musb *musb, u8 epnum)
                        is_dma = 1;
                        csr |= MUSB_TXCSR_P_WZC_BITS;
                        csr &= ~(MUSB_TXCSR_DMAENAB | MUSB_TXCSR_P_UNDERRUN |
-                                MUSB_TXCSR_TXPKTRDY);
+                                MUSB_TXCSR_TXPKTRDY | MUSB_TXCSR_AUTOSET);
                        musb_writew(epio, MUSB_TXCSR, csr);
                        /* Ensure writebuffer is empty. */
                        csr = musb_readw(epio, MUSB_TXCSR);