935 	u16			rx_csr, tx_csr;  in musb_bulk_nak_timeout()  local
946 		rx_csr = musb_readw(epio, MUSB_RXCSR);  in musb_bulk_nak_timeout()
947 		rx_csr |= MUSB_RXCSR_H_WZC_BITS;  in musb_bulk_nak_timeout()
948 		rx_csr &= ~MUSB_RXCSR_H_REQPKT;  in musb_bulk_nak_timeout()
949 		musb_writew(epio, MUSB_RXCSR, rx_csr);  in musb_bulk_nak_timeout()
950 		rx_csr &= ~MUSB_RXCSR_DATAERROR;  in musb_bulk_nak_timeout()
951 		musb_writew(epio, MUSB_RXCSR, rx_csr);  in musb_bulk_nak_timeout()
1773 	u16			rx_csr, val;  in musb_host_rx()  local
1787 	rx_csr = musb_readw(epio, MUSB_RXCSR);  in musb_host_rx()
1788 	val = rx_csr;  in musb_host_rx()
1805 	if (rx_csr & MUSB_RXCSR_H_RXSTALL) {  in musb_host_rx()
1811 	} else if (rx_csr & MUSB_RXCSR_H_ERROR) {  in musb_host_rx()
1817 		rx_csr &= ~MUSB_RXCSR_H_ERROR;  in musb_host_rx()
1818 		musb_writew(epio, MUSB_RXCSR, rx_csr);  in musb_host_rx()
1820 	} else if (rx_csr & MUSB_RXCSR_DATAERROR) {  in musb_host_rx()
1840 			rx_csr |= MUSB_RXCSR_H_WZC_BITS;  in musb_host_rx()
1841 			rx_csr &= ~MUSB_RXCSR_DATAERROR;  in musb_host_rx()
1842 			musb_writew(epio, MUSB_RXCSR, rx_csr);  in musb_host_rx()
1850 	} else if (rx_csr & MUSB_RXCSR_INCOMPRX) {  in musb_host_rx()
1872 		ERR("RX%d dma busy, csr %04x\n", epnum, rx_csr);  in musb_host_rx()
1883 	    (rx_csr & MUSB_RXCSR_H_REQPKT)) {  in musb_host_rx()
1896 		musb_dbg(musb, "RXCSR%d %04x, reqpkt, len %zu%s", epnum, rx_csr,  in musb_host_rx()
1898 		rx_csr &= ~MUSB_RXCSR_H_REQPKT;  in musb_host_rx()
1902 				MUSB_RXCSR_H_WZC_BITS | rx_csr);  in musb_host_rx()
1905 	if (dma && (rx_csr & MUSB_RXCSR_DMAENAB)) {  in musb_host_rx()
1928 		if (unlikely(!(rx_csr & MUSB_RXCSR_RXPKTRDY))) {  in musb_host_rx()