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()
1225 	if (port->ip_sscr & IOC4_SSCR_DMA_EN) {  in local_open()
1226 		writel(port->ip_sscr | IOC4_SSCR_DMA_PAUSE,  in local_open()
1252 	port->ip_sscr &= ~IOC4_SSCR_RX_THRESHOLD;  in local_open()
1253 	port->ip_sscr |= 1;	/* default threshold */  in local_open()
1258 	writel(port->ip_sscr, &port->ip_serial_regs->sscr);  in local_open()
1288 	port->ip_sscr &= ~IOC4_SSCR_RX_THRESHOLD;  in set_rx_timeout()
1289 	port->ip_sscr |= threshold;  in set_rx_timeout()
1291 	writel(port->ip_sscr, &port->ip_serial_regs->sscr);  in set_rx_timeout()
1344 	if (port->ip_sscr & IOC4_SSCR_DMA_EN) {  in config_port()
1345 		writel(port->ip_sscr | IOC4_SSCR_DMA_PAUSE,  in config_port()
1377 	if (port->ip_sscr & IOC4_SSCR_DMA_EN) {  in config_port()
1378 		writel(port->ip_sscr, &port->ip_serial_regs->sscr);  in config_port()
1459 	if (total > 0 && !(port->ip_sscr & IOC4_SSCR_DMA_EN)) {  in do_write()
1460 		port->ip_sscr |= IOC4_SSCR_DMA_EN;  in do_write()
1461 		writel(port->ip_sscr, &port->ip_serial_regs->sscr);  in do_write()
1529 		port->ip_sscr |= sscrbits;  in set_notification()
1533 		port->ip_sscr &= ~sscrbits;  in set_notification()
1541 		port->ip_sscr |= IOC4_SSCR_DMA_EN;  in set_notification()
1543 		port->ip_sscr &= ~IOC4_SSCR_DMA_EN;  in set_notification()
1545 	writel(port->ip_sscr, &port->ip_serial_regs->sscr);  in set_notification()
1567 	if (port->ip_sscr & IOC4_SSCR_DMA_EN) {  in set_mcr()
1568 		writel(port->ip_sscr | IOC4_SSCR_DMA_PAUSE,  in set_mcr()
1588 	if (port->ip_sscr & IOC4_SSCR_DMA_EN) {  in set_mcr()
1589 		writel(port->ip_sscr, &port->ip_serial_regs->sscr);  in set_mcr()
1759 		port->ip_sscr |= IOC4_SSCR_HFC_EN;  in ioc4_change_speed()
1762 		port->ip_sscr &= ~IOC4_SSCR_HFC_EN;  in ioc4_change_speed()
1764 	writel(port->ip_sscr, &port->ip_serial_regs->sscr);  in ioc4_change_speed()
2003 					BUG_ON(!(port->ip_sscr  in handle_intr()
2005 					port->ip_sscr &= ~IOC4_SSCR_DMA_EN;  in handle_intr()
2006 					writel(port->ip_sscr,  in handle_intr()
2113 		if (!(port->ip_sscr & IOC4_SSCR_DMA_EN)) {  in do_read()
2114 			port->ip_sscr |= IOC4_SSCR_DMA_EN;  in do_read()
2124 		writel(port->ip_sscr | IOC4_SSCR_RX_DRAIN,  in do_read()
2152 			port->ip_sscr &= ~IOC4_SSCR_DMA_EN;  in do_read()
2153 			writel(port->ip_sscr, &port->ip_serial_regs->sscr);  in do_read()
2328 			& PROD_CONS_MASK) < ((port->ip_sscr &  in do_read()