907 	u16			rx_csr, tx_csr;  in musb_bulk_nak_timeout()  local
919 		rx_csr = musb_readw(epio, MUSB_RXCSR);  in musb_bulk_nak_timeout()
920 		rx_csr |= MUSB_RXCSR_H_WZC_BITS;  in musb_bulk_nak_timeout()
921 		rx_csr &= ~MUSB_RXCSR_H_REQPKT;  in musb_bulk_nak_timeout()
922 		musb_writew(epio, MUSB_RXCSR, rx_csr);  in musb_bulk_nak_timeout()
923 		rx_csr &= ~MUSB_RXCSR_DATAERROR;  in musb_bulk_nak_timeout()
924 		musb_writew(epio, MUSB_RXCSR, rx_csr);  in musb_bulk_nak_timeout()
1738 	u16			rx_csr, val;  in musb_host_rx()  local
1752 	rx_csr = musb_readw(epio, MUSB_RXCSR);  in musb_host_rx()
1753 	val = rx_csr;  in musb_host_rx()
1770 	if (rx_csr & MUSB_RXCSR_H_RXSTALL) {  in musb_host_rx()
1776 	} else if (rx_csr & MUSB_RXCSR_H_ERROR) {  in musb_host_rx()
1788 		rx_csr &= ~MUSB_RXCSR_H_ERROR;  in musb_host_rx()
1789 		musb_writew(epio, MUSB_RXCSR, rx_csr);  in musb_host_rx()
1791 	} else if (rx_csr & MUSB_RXCSR_DATAERROR) {  in musb_host_rx()
1811 			rx_csr |= MUSB_RXCSR_H_WZC_BITS;  in musb_host_rx()
1812 			rx_csr &= ~MUSB_RXCSR_DATAERROR;  in musb_host_rx()
1813 			musb_writew(epio, MUSB_RXCSR, rx_csr);  in musb_host_rx()
1821 	} else if (rx_csr & MUSB_RXCSR_INCOMPRX) {  in musb_host_rx()
1843 		ERR("RX%d dma busy, csr %04x\n", epnum, rx_csr);  in musb_host_rx()
1854 	    (rx_csr & MUSB_RXCSR_H_REQPKT)) {  in musb_host_rx()
1867 		musb_dbg(musb, "RXCSR%d %04x, reqpkt, len %zu%s", epnum, rx_csr,  in musb_host_rx()
1869 		rx_csr &= ~MUSB_RXCSR_H_REQPKT;  in musb_host_rx()
1873 				MUSB_RXCSR_H_WZC_BITS | rx_csr);  in musb_host_rx()
1876 	if (dma && (rx_csr & MUSB_RXCSR_DMAENAB)) {  in musb_host_rx()
1899 		if (unlikely(!(rx_csr & MUSB_RXCSR_RXPKTRDY))) {  in musb_host_rx()