491 	uint32_t ip_sscr;  member
901 	port->ip_sscr = (ENTRIES_PER_RING * 3 / 4);  in port_init()
902 	writel(port->ip_sscr, &port->ip_serial_regs->sscr);  in port_init()
1228 	if (port->ip_sscr & IOC4_SSCR_DMA_EN) {  in local_open()
1229 		writel(port->ip_sscr | IOC4_SSCR_DMA_PAUSE,  in local_open()
1255 	port->ip_sscr &= ~IOC4_SSCR_RX_THRESHOLD;  in local_open()
1256 	port->ip_sscr |= 1;	/* default threshold */  in local_open()
1261 	writel(port->ip_sscr, &port->ip_serial_regs->sscr);  in local_open()
1291 	port->ip_sscr &= ~IOC4_SSCR_RX_THRESHOLD;  in set_rx_timeout()
1292 	port->ip_sscr |= threshold;  in set_rx_timeout()
1294 	writel(port->ip_sscr, &port->ip_serial_regs->sscr);  in set_rx_timeout()
1347 	if (port->ip_sscr & IOC4_SSCR_DMA_EN) {  in config_port()
1348 		writel(port->ip_sscr | IOC4_SSCR_DMA_PAUSE,  in config_port()
1380 	if (port->ip_sscr & IOC4_SSCR_DMA_EN) {  in config_port()
1381 		writel(port->ip_sscr, &port->ip_serial_regs->sscr);  in config_port()
1462 	if (total > 0 && !(port->ip_sscr & IOC4_SSCR_DMA_EN)) {  in do_write()
1463 		port->ip_sscr |= IOC4_SSCR_DMA_EN;  in do_write()
1464 		writel(port->ip_sscr, &port->ip_serial_regs->sscr);  in do_write()
1532 		port->ip_sscr |= sscrbits;  in set_notification()
1536 		port->ip_sscr &= ~sscrbits;  in set_notification()
1544 		port->ip_sscr |= IOC4_SSCR_DMA_EN;  in set_notification()
1546 		port->ip_sscr &= ~IOC4_SSCR_DMA_EN;  in set_notification()
1548 	writel(port->ip_sscr, &port->ip_serial_regs->sscr);  in set_notification()
1570 	if (port->ip_sscr & IOC4_SSCR_DMA_EN) {  in set_mcr()
1571 		writel(port->ip_sscr | IOC4_SSCR_DMA_PAUSE,  in set_mcr()
1591 	if (port->ip_sscr & IOC4_SSCR_DMA_EN) {  in set_mcr()
1592 		writel(port->ip_sscr, &port->ip_serial_regs->sscr);  in set_mcr()
1762 		port->ip_sscr |= IOC4_SSCR_HFC_EN;  in ioc4_change_speed()
1765 		port->ip_sscr &= ~IOC4_SSCR_HFC_EN;  in ioc4_change_speed()
1767 	writel(port->ip_sscr, &port->ip_serial_regs->sscr);  in ioc4_change_speed()
2006 					BUG_ON(!(port->ip_sscr  in handle_intr()
2008 					port->ip_sscr &= ~IOC4_SSCR_DMA_EN;  in handle_intr()
2009 					writel(port->ip_sscr,  in handle_intr()
2116 		if (!(port->ip_sscr & IOC4_SSCR_DMA_EN)) {  in do_read()
2117 			port->ip_sscr |= IOC4_SSCR_DMA_EN;  in do_read()
2127 		writel(port->ip_sscr | IOC4_SSCR_RX_DRAIN,  in do_read()
2155 			port->ip_sscr &= ~IOC4_SSCR_DMA_EN;  in do_read()
2156 			writel(port->ip_sscr, &port->ip_serial_regs->sscr);  in do_read()
2331 			& PROD_CONS_MASK) < ((port->ip_sscr &  in do_read()