494 	uint32_t ip_sscr;  member
904 	port->ip_sscr = (ENTRIES_PER_RING * 3 / 4);  in port_init()
905 	writel(port->ip_sscr, &port->ip_serial_regs->sscr);  in port_init()
1226 	if (port->ip_sscr & IOC4_SSCR_DMA_EN) {  in local_open()
1227 		writel(port->ip_sscr | IOC4_SSCR_DMA_PAUSE,  in local_open()
1253 	port->ip_sscr &= ~IOC4_SSCR_RX_THRESHOLD;  in local_open()
1254 	port->ip_sscr |= 1;	/* default threshold */  in local_open()
1259 	writel(port->ip_sscr, &port->ip_serial_regs->sscr);  in local_open()
1289 	port->ip_sscr &= ~IOC4_SSCR_RX_THRESHOLD;  in set_rx_timeout()
1290 	port->ip_sscr |= threshold;  in set_rx_timeout()
1292 	writel(port->ip_sscr, &port->ip_serial_regs->sscr);  in set_rx_timeout()
1345 	if (port->ip_sscr & IOC4_SSCR_DMA_EN) {  in config_port()
1346 		writel(port->ip_sscr | IOC4_SSCR_DMA_PAUSE,  in config_port()
1378 	if (port->ip_sscr & IOC4_SSCR_DMA_EN) {  in config_port()
1379 		writel(port->ip_sscr, &port->ip_serial_regs->sscr);  in config_port()
1460 	if (total > 0 && !(port->ip_sscr & IOC4_SSCR_DMA_EN)) {  in do_write()
1461 		port->ip_sscr |= IOC4_SSCR_DMA_EN;  in do_write()
1462 		writel(port->ip_sscr, &port->ip_serial_regs->sscr);  in do_write()
1530 		port->ip_sscr |= sscrbits;  in set_notification()
1534 		port->ip_sscr &= ~sscrbits;  in set_notification()
1542 		port->ip_sscr |= IOC4_SSCR_DMA_EN;  in set_notification()
1544 		port->ip_sscr &= ~IOC4_SSCR_DMA_EN;  in set_notification()
1546 	writel(port->ip_sscr, &port->ip_serial_regs->sscr);  in set_notification()
1568 	if (port->ip_sscr & IOC4_SSCR_DMA_EN) {  in set_mcr()
1569 		writel(port->ip_sscr | IOC4_SSCR_DMA_PAUSE,  in set_mcr()
1589 	if (port->ip_sscr & IOC4_SSCR_DMA_EN) {  in set_mcr()
1590 		writel(port->ip_sscr, &port->ip_serial_regs->sscr);  in set_mcr()
1760 		port->ip_sscr |= IOC4_SSCR_HFC_EN;  in ioc4_change_speed()
1763 		port->ip_sscr &= ~IOC4_SSCR_HFC_EN;  in ioc4_change_speed()
1765 	writel(port->ip_sscr, &port->ip_serial_regs->sscr);  in ioc4_change_speed()
2004 					BUG_ON(!(port->ip_sscr  in handle_intr()
2006 					port->ip_sscr &= ~IOC4_SSCR_DMA_EN;  in handle_intr()
2007 					writel(port->ip_sscr,  in handle_intr()
2114 		if (!(port->ip_sscr & IOC4_SSCR_DMA_EN)) {  in do_read()
2115 			port->ip_sscr |= IOC4_SSCR_DMA_EN;  in do_read()
2125 		writel(port->ip_sscr | IOC4_SSCR_RX_DRAIN,  in do_read()
2153 			port->ip_sscr &= ~IOC4_SSCR_DMA_EN;  in do_read()
2154 			writel(port->ip_sscr, &port->ip_serial_regs->sscr);  in do_read()
2329 			& PROD_CONS_MASK) < ((port->ip_sscr &  in do_read()