1 files changed, 139 insertions, 84 deletions

diff --git a/drivers/tty/serial/sh-sci.c b/drivers/tty/serial/sh-sci.c
index 1c356544a832..538b2f991609 100644
--- a/drivers/tty/serial/sh-sci.c
+++ b/drivers/tty/serial/sh-sci.c
@@ -54,6 +54,7 @@
 #include <asm/platform_early.h>
 #endif
 
+#include "rsci.h"
 #include "serial_mctrl_gpio.h"
 #include "sh-sci.h"
 #include "sh-sci-common.h"
@@ -75,6 +76,8 @@
 
 #define SCI_NPORTS CONFIG_SERIAL_SH_SCI_NR_UARTS
 
+#define SCI_PUBLIC_PORT_ID(port) (((port) & BIT(7)) ? PORT_GENERIC : (port))
+
 static struct sci_port sci_ports[SCI_NPORTS];
 static unsigned long sci_ports_in_use;
 static struct uart_driver sci_uart_driver;
@@ -548,6 +551,7 @@ void sci_port_enable(struct sci_port *sci_port)
 	}
 	sci_port->port.uartclk = sci_port->clk_rates[SCI_FCK];
 }
+EXPORT_SYMBOL_NS_GPL(sci_port_enable, "SH_SCI");
 
 void sci_port_disable(struct sci_port *sci_port)
 {
@@ -561,6 +565,7 @@ void sci_port_disable(struct sci_port *sci_port)
 
 	pm_runtime_put_sync(sci_port->port.dev);
 }
+EXPORT_SYMBOL_NS_GPL(sci_port_disable, "SH_SCI");
 
 static inline unsigned long port_rx_irq_mask(struct uart_port *port)
 {
@@ -580,7 +585,7 @@ static void sci_start_tx(struct uart_port *port)
 	unsigned short ctrl;
 
 #ifdef CONFIG_SERIAL_SH_SCI_DMA
-	if (port->type == PORT_SCIFA || port->type == PORT_SCIFB) {
+	if (s->type == PORT_SCIFA || s->type == PORT_SCIFB) {
 		u16 new, scr = sci_serial_in(port, SCSCR);
 		if (s->chan_tx)
 			new = scr | SCSCR_TDRQE;
@@ -592,7 +597,7 @@ static void sci_start_tx(struct uart_port *port)
 
 	if (s->chan_tx && !kfifo_is_empty(&port->state->port.xmit_fifo) &&
 	    dma_submit_error(s->cookie_tx)) {
-		if (s->cfg->regtype == SCIx_RZ_SCIFA_REGTYPE)
+		if (s->regtype == SCIx_RZ_SCIFA_REGTYPE)
 			/* Switch irq from SCIF to DMA */
 			disable_irq_nosync(s->irqs[SCIx_TXI_IRQ]);
 
@@ -601,8 +606,8 @@ static void sci_start_tx(struct uart_port *port)
 	}
 #endif
 
-	if (!s->chan_tx || s->cfg->regtype == SCIx_RZ_SCIFA_REGTYPE ||
-	    port->type == PORT_SCIFA || port->type == PORT_SCIFB) {
+	if (!s->chan_tx || s->regtype == SCIx_RZ_SCIFA_REGTYPE ||
+	    s->type == PORT_SCIFA || s->type == PORT_SCIFB) {
 		/* Set TIE (Transmit Interrupt Enable) bit in SCSCR */
 		ctrl = sci_serial_in(port, SCSCR);
 
@@ -611,7 +616,7 @@ static void sci_start_tx(struct uart_port *port)
 		 * (transmit interrupt enable) or in the same instruction to start
 		 * the transmit process.
 		 */
-		if (port->type == PORT_SCI)
+		if (s->type == PORT_SCI)
 			ctrl |= SCSCR_TE;
 
 		sci_serial_out(port, SCSCR, ctrl | SCSCR_TIE);
@@ -620,12 +625,13 @@ static void sci_start_tx(struct uart_port *port)
 
 static void sci_stop_tx(struct uart_port *port)
 {
+	struct sci_port *s = to_sci_port(port);
 	unsigned short ctrl;
 
 	/* Clear TIE (Transmit Interrupt Enable) bit in SCSCR */
 	ctrl = sci_serial_in(port, SCSCR);
 
-	if (port->type == PORT_SCIFA || port->type == PORT_SCIFB)
+	if (s->type == PORT_SCIFA || s->type == PORT_SCIFB)
 		ctrl &= ~SCSCR_TDRQE;
 
 	ctrl &= ~SCSCR_TIE;
@@ -633,21 +639,22 @@ static void sci_stop_tx(struct uart_port *port)
 	sci_serial_out(port, SCSCR, ctrl);
 
 #ifdef CONFIG_SERIAL_SH_SCI_DMA
-	if (to_sci_port(port)->chan_tx &&
-	    !dma_submit_error(to_sci_port(port)->cookie_tx)) {
-		dmaengine_terminate_async(to_sci_port(port)->chan_tx);
-		to_sci_port(port)->cookie_tx = -EINVAL;
+	if (s->chan_tx &&
+	    !dma_submit_error(s->cookie_tx)) {
+		dmaengine_terminate_async(s->chan_tx);
+		s->cookie_tx = -EINVAL;
 	}
 #endif
 }
 
 static void sci_start_rx(struct uart_port *port)
 {
+	struct sci_port *s = to_sci_port(port);
 	unsigned short ctrl;
 
 	ctrl = sci_serial_in(port, SCSCR) | port_rx_irq_mask(port);
 
-	if (port->type == PORT_SCIFA || port->type == PORT_SCIFB)
+	if (s->type == PORT_SCIFA || s->type == PORT_SCIFB)
 		ctrl &= ~SCSCR_RDRQE;
 
 	sci_serial_out(port, SCSCR, ctrl);
@@ -655,11 +662,12 @@ static void sci_start_rx(struct uart_port *port)
 
 static void sci_stop_rx(struct uart_port *port)
 {
+	struct sci_port *s = to_sci_port(port);
 	unsigned short ctrl;
 
 	ctrl = sci_serial_in(port, SCSCR);
 
-	if (port->type == PORT_SCIFA || port->type == PORT_SCIFB)
+	if (s->type == PORT_SCIFA || s->type == PORT_SCIFB)
 		ctrl &= ~SCSCR_RDRQE;
 
 	ctrl &= ~port_rx_irq_mask(port);
@@ -669,10 +677,12 @@ static void sci_stop_rx(struct uart_port *port)
 
 static void sci_clear_SCxSR(struct uart_port *port, unsigned int mask)
 {
-	if (port->type == PORT_SCI) {
+	struct sci_port *s = to_sci_port(port);
+
+	if (s->type == PORT_SCI) {
 		/* Just store the mask */
 		sci_serial_out(port, SCxSR, mask);
-	} else if (to_sci_port(port)->params->overrun_mask == SCIFA_ORER) {
+	} else if (s->params->overrun_mask == SCIFA_ORER) {
 		/* SCIFA/SCIFB and SCIF on SH7705/SH7720/SH7721 */
 		/* Only clear the status bits we want to clear */
 		sci_serial_out(port, SCxSR, sci_serial_in(port, SCxSR) & mask);
@@ -742,13 +752,13 @@ static void sci_init_pins(struct uart_port *port, unsigned int cflag)
 		return;
 	}
 
-	if (port->type == PORT_SCIFA || port->type == PORT_SCIFB) {
+	if (s->type == PORT_SCIFA || s->type == PORT_SCIFB) {
 		u16 data = sci_serial_in(port, SCPDR);
 		u16 ctrl = sci_serial_in(port, SCPCR);
 
 		/* Enable RXD and TXD pin functions */
 		ctrl &= ~(SCPCR_RXDC | SCPCR_TXDC);
-		if (to_sci_port(port)->has_rtscts) {
+		if (s->has_rtscts) {
 			/* RTS# is output, active low, unless autorts */
 			if (!(port->mctrl & TIOCM_RTS)) {
 				ctrl |= SCPCR_RTSC;
@@ -765,7 +775,7 @@ static void sci_init_pins(struct uart_port *port, unsigned int cflag)
 		}
 		sci_serial_out(port, SCPDR, data);
 		sci_serial_out(port, SCPCR, ctrl);
-	} else if (sci_getreg(port, SCSPTR)->size && s->cfg->regtype != SCIx_RZV2H_SCIF_REGTYPE) {
+	} else if (sci_getreg(port, SCSPTR)->size && s->regtype != SCIx_RZV2H_SCIF_REGTYPE) {
 		u16 status = sci_serial_in(port, SCSPTR);
 
 		/* RTS# is always output; and active low, unless autorts */
@@ -852,8 +862,8 @@ static void sci_transmit_chars(struct uart_port *port)
 			c = port->x_char;
 			port->x_char = 0;
 		} else if (stopped || !kfifo_get(&tport->xmit_fifo, &c)) {
-			if (port->type == PORT_SCI &&
-				   kfifo_is_empty(&tport->xmit_fifo)) {
+			if (s->type == PORT_SCI &&
+			    kfifo_is_empty(&tport->xmit_fifo)) {
 				ctrl = sci_serial_in(port, SCSCR);
 				ctrl &= ~SCSCR_TE;
 				sci_serial_out(port, SCSCR, ctrl);
@@ -873,7 +883,7 @@ static void sci_transmit_chars(struct uart_port *port)
 	if (kfifo_len(&tport->xmit_fifo) < WAKEUP_CHARS)
 		uart_write_wakeup(port);
 	if (kfifo_is_empty(&tport->xmit_fifo)) {
-		if (port->type == PORT_SCI) {
+		if (s->type == PORT_SCI) {
 			ctrl = sci_serial_in(port, SCSCR);
 			ctrl &= ~SCSCR_TIE;
 			ctrl |= SCSCR_TEIE;
@@ -904,7 +914,7 @@ static void sci_receive_chars(struct uart_port *port)
 		if (count == 0)
 			break;
 
-		if (port->type == PORT_SCI) {
+		if (s->type == PORT_SCI) {
 			char c = sci_serial_in(port, SCxRDR);
 			if (uart_handle_sysrq_char(port, c))
 				count = 0;
@@ -914,8 +924,8 @@ static void sci_receive_chars(struct uart_port *port)
 			for (i = 0; i < count; i++) {
 				char c;
 
-				if (port->type == PORT_SCIF ||
-				    port->type == PORT_HSCIF) {
+				if (s->type == PORT_SCIF ||
+				    s->type == PORT_HSCIF) {
 					status = sci_serial_in(port, SCxSR);
 					c = sci_serial_in(port, SCxRDR);
 				} else {
@@ -1052,6 +1062,7 @@ static int sci_handle_breaks(struct uart_port *port)
 
 static int scif_set_rtrg(struct uart_port *port, int rx_trig)
 {
+	struct sci_port *s = to_sci_port(port);
 	unsigned int bits;
 
 	if (rx_trig >= port->fifosize)
@@ -1065,7 +1076,7 @@ static int scif_set_rtrg(struct uart_port *port, int rx_trig)
 		return rx_trig;
 	}
 
-	switch (port->type) {
+	switch (s->type) {
 	case PORT_SCIF:
 		if (rx_trig < 4) {
 			bits = 0;
@@ -1150,7 +1161,7 @@ static ssize_t rx_fifo_trigger_store(struct device *dev,
 		return ret;
 
 	sci->rx_trigger = sci->ops->set_rtrg(port, r);
-	if (port->type == PORT_SCIFA || port->type == PORT_SCIFB)
+	if (sci->type == PORT_SCIFA || sci->type == PORT_SCIFB)
 		sci->ops->set_rtrg(port, 1);
 
 	return count;
@@ -1166,7 +1177,7 @@ static ssize_t rx_fifo_timeout_show(struct device *dev,
 	struct sci_port *sci = to_sci_port(port);
 	int v;
 
-	if (port->type == PORT_HSCIF)
+	if (sci->type == PORT_HSCIF)
 		v = sci->hscif_tot >> HSSCR_TOT_SHIFT;
 	else
 		v = sci->rx_fifo_timeout;
@@ -1188,7 +1199,7 @@ static ssize_t rx_fifo_timeout_store(struct device *dev,
 	if (ret)
 		return ret;
 
-	if (port->type == PORT_HSCIF) {
+	if (sci->type == PORT_HSCIF) {
 		if (r < 0 || r > 3)
 			return -EINVAL;
 		sci->hscif_tot = r << HSSCR_TOT_SHIFT;
@@ -1229,11 +1240,11 @@ static void sci_dma_tx_complete(void *arg)
 		schedule_work(&s->work_tx);
 	} else {
 		s->cookie_tx = -EINVAL;
-		if (port->type == PORT_SCIFA || port->type == PORT_SCIFB ||
-		    s->cfg->regtype == SCIx_RZ_SCIFA_REGTYPE) {
+		if (s->type == PORT_SCIFA || s->type == PORT_SCIFB ||
+		    s->regtype == SCIx_RZ_SCIFA_REGTYPE) {
 			u16 ctrl = sci_serial_in(port, SCSCR);
 			sci_serial_out(port, SCSCR, ctrl & ~SCSCR_TIE);
-			if (s->cfg->regtype == SCIx_RZ_SCIFA_REGTYPE) {
+			if (s->regtype == SCIx_RZ_SCIFA_REGTYPE) {
 				/* Switch irq from DMA to SCIF */
 				dmaengine_pause(s->chan_tx_saved);
 				enable_irq(s->irqs[SCIx_TXI_IRQ]);
@@ -1315,10 +1326,10 @@ static void sci_dma_rx_reenable_irq(struct sci_port *s)
 
 	/* Direct new serial port interrupts back to CPU */
 	scr = sci_serial_in(port, SCSCR);
-	if (port->type == PORT_SCIFA || port->type == PORT_SCIFB ||
-	    s->cfg->regtype == SCIx_RZ_SCIFA_REGTYPE) {
+	if (s->type == PORT_SCIFA || s->type == PORT_SCIFB ||
+	    s->regtype == SCIx_RZ_SCIFA_REGTYPE) {
 		enable_irq(s->irqs[SCIx_RXI_IRQ]);
-		if (s->cfg->regtype == SCIx_RZ_SCIFA_REGTYPE)
+		if (s->regtype == SCIx_RZ_SCIFA_REGTYPE)
 			s->ops->set_rtrg(port, s->rx_trigger);
 		else
 			scr &= ~SCSCR_RDRQE;
@@ -1558,8 +1569,8 @@ static enum hrtimer_restart sci_dma_rx_timer_fn(struct hrtimer *t)
 			tty_flip_buffer_push(&port->state->port);
 	}
 
-	if (port->type == PORT_SCIFA || port->type == PORT_SCIFB ||
-	    s->cfg->regtype == SCIx_RZ_SCIFA_REGTYPE)
+	if (s->type == PORT_SCIFA || s->type == PORT_SCIFB ||
+	    s->regtype == SCIx_RZ_SCIFA_REGTYPE)
 		sci_dma_rx_submit(s, true);
 
 	sci_dma_rx_reenable_irq(s);
@@ -1682,8 +1693,8 @@ static void sci_request_dma(struct uart_port *port)
 
 		s->chan_rx_saved = s->chan_rx = chan;
 
-		if (port->type == PORT_SCIFA || port->type == PORT_SCIFB ||
-		    s->cfg->regtype == SCIx_RZ_SCIFA_REGTYPE)
+		if (s->type == PORT_SCIFA || s->type == PORT_SCIFB ||
+		    s->regtype == SCIx_RZ_SCIFA_REGTYPE)
 			sci_dma_rx_submit(s, false);
 	}
 }
@@ -1753,10 +1764,10 @@ static irqreturn_t sci_rx_interrupt(int irq, void *ptr)
 		u16 ssr = sci_serial_in(port, SCxSR);
 
 		/* Disable future Rx interrupts */
-		if (port->type == PORT_SCIFA || port->type == PORT_SCIFB ||
-		    s->cfg->regtype == SCIx_RZ_SCIFA_REGTYPE) {
+		if (s->type == PORT_SCIFA || s->type == PORT_SCIFB ||
+		    s->regtype == SCIx_RZ_SCIFA_REGTYPE) {
 			disable_irq_nosync(s->irqs[SCIx_RXI_IRQ]);
-			if (s->cfg->regtype == SCIx_RZ_SCIFA_REGTYPE) {
+			if (s->regtype == SCIx_RZ_SCIFA_REGTYPE) {
 				s->ops->set_rtrg(port, 1);
 				scr |= SCSCR_RIE;
 			} else {
@@ -1820,7 +1831,7 @@ static irqreturn_t sci_tx_end_interrupt(int irq, void *ptr)
 	unsigned long flags;
 	u32 ctrl;
 
-	if (port->type != PORT_SCI)
+	if (s->type != PORT_SCI && s->type != SCI_PORT_RSCI)
 		return sci_tx_interrupt(irq, ptr);
 
 	uart_port_lock_irqsave(port, &flags);
@@ -1867,7 +1878,7 @@ static irqreturn_t sci_er_interrupt(int irq, void *ptr)
 	}
 
 	/* Handle errors */
-	if (port->type == PORT_SCI) {
+	if (s->type == PORT_SCI) {
 		if (sci_handle_errors(port)) {
 			/* discard character in rx buffer */
 			sci_serial_in(port, SCxSR);
@@ -2091,7 +2102,9 @@ static unsigned int sci_tx_empty(struct uart_port *port)
 
 static void sci_set_rts(struct uart_port *port, bool state)
 {
-	if (port->type == PORT_SCIFA || port->type == PORT_SCIFB) {
+	struct sci_port *s = to_sci_port(port);
+
+	if (s->type == PORT_SCIFA || s->type == PORT_SCIFB) {
 		u16 data = sci_serial_in(port, SCPDR);
 
 		/* Active low */
@@ -2118,7 +2131,9 @@ static void sci_set_rts(struct uart_port *port, bool state)
 
 static bool sci_get_cts(struct uart_port *port)
 {
-	if (port->type == PORT_SCIFA || port->type == PORT_SCIFB) {
+	struct sci_port *s = to_sci_port(port);
+
+	if (s->type == PORT_SCIFA || s->type == PORT_SCIFB) {
 		/* Active low */
 		return !(sci_serial_in(port, SCPDR) & SCPDR_CTSD);
 	} else if (sci_getreg(port, SCSPTR)->size) {
@@ -2164,21 +2179,21 @@ static void sci_set_mctrl(struct uart_port *port, unsigned int mctrl)
 
 	if (!(mctrl & TIOCM_RTS)) {
 		/* Disable Auto RTS */
-		if (s->cfg->regtype != SCIx_RZV2H_SCIF_REGTYPE)
+		if (s->regtype != SCIx_RZV2H_SCIF_REGTYPE)
 			sci_serial_out(port, SCFCR,
 				       sci_serial_in(port, SCFCR) & ~SCFCR_MCE);
 
 		/* Clear RTS */
 		sci_set_rts(port, 0);
 	} else if (s->autorts) {
-		if (port->type == PORT_SCIFA || port->type == PORT_SCIFB) {
+		if (s->type == PORT_SCIFA || s->type == PORT_SCIFB) {
 			/* Enable RTS# pin function */
 			sci_serial_out(port, SCPCR,
 				sci_serial_in(port, SCPCR) & ~SCPCR_RTSC);
 		}
 
 		/* Enable Auto RTS */
-		if (s->cfg->regtype != SCIx_RZV2H_SCIF_REGTYPE)
+		if (s->regtype != SCIx_RZV2H_SCIF_REGTYPE)
 			sci_serial_out(port, SCFCR,
 				       sci_serial_in(port, SCFCR) | SCFCR_MCE);
 	} else {
@@ -2277,6 +2292,7 @@ int sci_startup(struct uart_port *port)
 
 	return 0;
 }
+EXPORT_SYMBOL_NS_GPL(sci_startup, "SH_SCI");
 
 void sci_shutdown(struct uart_port *port)
 {
@@ -2289,8 +2305,8 @@ void sci_shutdown(struct uart_port *port)
 	mctrl_gpio_disable_ms_sync(to_sci_port(port)->gpios);
 
 	uart_port_lock_irqsave(port, &flags);
-	sci_stop_rx(port);
-	sci_stop_tx(port);
+	s->port.ops->stop_rx(port);
+	s->port.ops->stop_tx(port);
 	s->ops->shutdown_complete(port);
 	uart_port_unlock_irqrestore(port, flags);
 
@@ -2307,6 +2323,7 @@ void sci_shutdown(struct uart_port *port)
 	sci_free_irq(s);
 	sci_free_dma(port);
 }
+EXPORT_SYMBOL_NS_GPL(sci_shutdown, "SH_SCI");
 
 static int sci_sck_calc(struct sci_port *s, unsigned int bps,
 			unsigned int *srr)
@@ -2315,7 +2332,7 @@ static int sci_sck_calc(struct sci_port *s, unsigned int bps,
 	int err, min_err = INT_MAX;
 	unsigned int sr;
 
-	if (s->port.type != PORT_HSCIF)
+	if (s->type != PORT_HSCIF)
 		freq *= 2;
 
 	for_each_sr(sr, s) {
@@ -2342,7 +2359,7 @@ static int sci_brg_calc(struct sci_port *s, unsigned int bps,
 	int err, min_err = INT_MAX;
 	unsigned int sr, dl;
 
-	if (s->port.type != PORT_HSCIF)
+	if (s->type != PORT_HSCIF)
 		freq *= 2;
 
 	for_each_sr(sr, s) {
@@ -2375,7 +2392,7 @@ static int sci_scbrr_calc(struct sci_port *s, unsigned int bps,
 	unsigned int sr, br, prediv, scrate, c;
 	int err, min_err = INT_MAX;
 
-	if (s->port.type != PORT_HSCIF)
+	if (s->type != PORT_HSCIF)
 		freq *= 2;
 
 	/*
@@ -2460,8 +2477,8 @@ static void sci_reset(struct uart_port *port)
 			s->ops->set_rtrg(port, 1);
 			timer_setup(&s->rx_fifo_timer, rx_fifo_timer_fn, 0);
 		} else {
-			if (port->type == PORT_SCIFA ||
-			    port->type == PORT_SCIFB)
+			if (s->type == PORT_SCIFA ||
+			    s->type == PORT_SCIFB)
 				s->ops->set_rtrg(port, 1);
 			else
 				s->ops->set_rtrg(port, s->rx_trigger);
@@ -2521,8 +2538,8 @@ static void sci_set_termios(struct uart_port *port, struct ktermios *termios,
 	 */
 
 	/* Optional Undivided External Clock */
-	if (s->clk_rates[SCI_SCK] && port->type != PORT_SCIFA &&
-	    port->type != PORT_SCIFB) {
+	if (s->clk_rates[SCI_SCK] && s->type != PORT_SCIFA &&
+	    s->type != PORT_SCIFB) {
 		err = sci_sck_calc(s, baud, &srr1);
 		if (abs(err) < abs(min_err)) {
 			best_clk = SCI_SCK;
@@ -2607,7 +2624,7 @@ done:
 		sci_serial_out(port, SEMR, 0);
 
 	if (best_clk >= 0) {
-		if (port->type == PORT_SCIFA || port->type == PORT_SCIFB)
+		if (s->type == PORT_SCIFA || s->type == PORT_SCIFB)
 			switch (srr + 1) {
 			case 5:  smr_val |= SCSMR_SRC_5;  break;
 			case 7:  smr_val |= SCSMR_SRC_7;  break;
@@ -2692,12 +2709,12 @@ done:
 	 * (transmit interrupt enable) or in the same instruction to
 	 * start the transmitting process. So skip setting TE here for SCI.
 	 */
-	if (port->type != PORT_SCI)
+	if (s->type != PORT_SCI)
 		scr_val |= SCSCR_TE;
 	scr_val |= SCSCR_RE | (s->cfg->scscr & ~(SCSCR_CKE1 | SCSCR_CKE0));
 	sci_serial_out(port, SCSCR, scr_val | s->hscif_tot);
 	if ((srr + 1 == 5) &&
-	    (port->type == PORT_SCIFA || port->type == PORT_SCIFB)) {
+	    (s->type == PORT_SCIFA || s->type == PORT_SCIFB)) {
 		/*
 		 * In asynchronous mode, when the sampling rate is 1/5, first
 		 * received data may become invalid on some SCIFA and SCIFB.
@@ -2738,10 +2755,13 @@ void sci_pm(struct uart_port *port, unsigned int state,
 		break;
 	}
 }
+EXPORT_SYMBOL_NS_GPL(sci_pm, "SH_SCI");
 
 static const char *sci_type(struct uart_port *port)
 {
-	switch (port->type) {
+	struct sci_port *s = to_sci_port(port);
+
+	switch (s->type) {
 	case PORT_IRDA:
 		return "irda";
 	case PORT_SCI:
@@ -2798,6 +2818,7 @@ void sci_release_port(struct uart_port *port)
 
 	release_mem_region(port->mapbase, sport->reg_size);
 }
+EXPORT_SYMBOL_NS_GPL(sci_release_port, "SH_SCI");
 
 int sci_request_port(struct uart_port *port)
 {
@@ -2820,16 +2841,17 @@ int sci_request_port(struct uart_port *port)
 
 	return 0;
 }
+EXPORT_SYMBOL_NS_GPL(sci_request_port, "SH_SCI");
 
 void sci_config_port(struct uart_port *port, int flags)
 {
 	if (flags & UART_CONFIG_TYPE) {
 		struct sci_port *sport = to_sci_port(port);
-
-		port->type = sport->cfg->type;
+		port->type = SCI_PUBLIC_PORT_ID(sport->type);
 		sci_request_port(port);
 	}
 }
+EXPORT_SYMBOL_NS_GPL(sci_config_port, "SH_SCI");
 
 int sci_verify_port(struct uart_port *port, struct serial_struct *ser)
 {
@@ -2839,6 +2861,7 @@ int sci_verify_port(struct uart_port *port, struct serial_struct *ser)
 
 	return 0;
 }
+EXPORT_SYMBOL_NS_GPL(sci_verify_port, "SH_SCI");
 
 static void sci_prepare_console_write(struct uart_port *port, u32 ctrl)
 {
@@ -2964,14 +2987,27 @@ static int sci_init_clocks(struct sci_port *sci_port, struct device *dev)
 	struct clk *clk;
 	unsigned int i;
 
-	if (sci_port->cfg->type == PORT_HSCIF)
+	if (sci_port->type == PORT_HSCIF) {
 		clk_names[SCI_SCK] = "hsck";
+	} else if (sci_port->type == SCI_PORT_RSCI) {
+		clk_names[SCI_FCK] = "operation";
+		clk_names[SCI_BRG_INT] = "bus";
+	}
 
 	for (i = 0; i < SCI_NUM_CLKS; i++) {
-		clk = devm_clk_get_optional(dev, clk_names[i]);
+		const char *name = clk_names[i];
+
+		clk = devm_clk_get_optional(dev, name);
 		if (IS_ERR(clk))
 			return PTR_ERR(clk);
 
+		if (!clk && sci_port->type == SCI_PORT_RSCI &&
+		    (i == SCI_FCK || i == SCI_BRG_INT)) {
+			return dev_err_probe(dev, -ENODEV,
+					     "failed to get %s\n",
+					     name);
+		}
+
 		if (!clk && i == SCI_FCK) {
 			/*
 			 * Not all SH platforms declare a clock lookup entry
@@ -2982,13 +3018,13 @@ static int sci_init_clocks(struct sci_port *sci_port, struct device *dev)
 			if (IS_ERR(clk))
 				return dev_err_probe(dev, PTR_ERR(clk),
 						     "failed to get %s\n",
-						     clk_names[i]);
+						     name);
 		}
 
 		if (!clk)
-			dev_dbg(dev, "failed to get %s\n", clk_names[i]);
+			dev_dbg(dev, "failed to get %s\n", name);
 		else
-			dev_dbg(dev, "clk %s is %pC rate %lu\n", clk_names[i],
+			dev_dbg(dev, "clk %s is %pC rate %lu\n", name,
 				clk, clk_get_rate(clk));
 		sci_port->clks[i] = clk;
 	}
@@ -3050,6 +3086,9 @@ static int sci_init_single(struct platform_device *dev,
 
 	sci_port->cfg	= p;
 
+	sci_port->type	= p->type;
+	sci_port->regtype = p->regtype;
+
 	port->iotype	= UPIO_MEM;
 	port->line	= index;
 	port->has_sysrq = IS_ENABLED(CONFIG_SERIAL_SH_SCI_CONSOLE);
@@ -3069,10 +3108,10 @@ static int sci_init_single(struct platform_device *dev,
 	}
 
 	/*
-	 * The fourth interrupt on SCI port is transmit end interrupt, so
+	 * The fourth interrupt on SCI and RSCI port is transmit end interrupt, so
 	 * shuffle the interrupts.
 	 */
-	if (p->type == PORT_SCI)
+	if (p->type == PORT_SCI || p->type == SCI_PORT_RSCI)
 		swap(sci_port->irqs[SCIx_BRI_IRQ], sci_port->irqs[SCIx_TEI_IRQ]);
 
 	/* The SCI generates several interrupts. They can be muxed together or
@@ -3106,6 +3145,9 @@ static int sci_init_single(struct platform_device *dev,
 		else
 			sci_port->rx_trigger = 8;
 		break;
+	case SCI_PORT_RSCI:
+		sci_port->rx_trigger = 15;
+		break;
 	default:
 		sci_port->rx_trigger = 1;
 		break;
@@ -3128,11 +3170,11 @@ static int sci_init_single(struct platform_device *dev,
 			return ret;
 	}
 
-	port->type		= p->type;
+	port->type		= SCI_PUBLIC_PORT_ID(p->type);
 	port->flags		= UPF_FIXED_PORT | UPF_BOOT_AUTOCONF | p->flags;
 	port->fifosize		= sci_port->params->fifosize;
 
-	if (port->type == PORT_SCI && !dev->dev.of_node) {
+	if (p->type == PORT_SCI && !dev->dev.of_node) {
 		if (sci_port->reg_size >= 0x20)
 			port->regshift = 2;
 		else
@@ -3322,15 +3364,16 @@ static struct uart_driver sci_uart_driver = {
 
 static void sci_remove(struct platform_device *dev)
 {
-	struct sci_port *port = platform_get_drvdata(dev);
-	unsigned int type = port->port.type;	/* uart_remove_... clears it */
+	struct sci_port *s = platform_get_drvdata(dev);
+	unsigned int type = s->type;	/* uart_remove_... clears it */
 
-	sci_ports_in_use &= ~BIT(port->port.line);
-	uart_remove_one_port(&sci_uart_driver, &port->port);
+	sci_ports_in_use &= ~BIT(s->port.line);
+	uart_remove_one_port(&sci_uart_driver, &s->port);
 
-	if (port->port.fifosize > 1)
+	if (s->port.fifosize > 1)
 		device_remove_file(&dev->dev, &dev_attr_rx_fifo_trigger);
-	if (type == PORT_SCIFA || type == PORT_SCIFB || type == PORT_HSCIF)
+	if (type == PORT_SCIFA || type == PORT_SCIFB || type == PORT_HSCIF ||
+	    type == SCI_PORT_RSCI)
 		device_remove_file(&dev->dev, &dev_attr_rx_fifo_timeout);
 }
 
@@ -3424,6 +3467,12 @@ static const struct of_device_id of_sci_match[] __maybe_unused = {
 		.compatible = "renesas,scif-r9a09g057",
 		.data = &of_sci_scif_rzv2h,
 	},
+#ifdef CONFIG_SERIAL_RSCI
+	{
+		.compatible = "renesas,r9a09g077-rsci",
+		.data = &of_sci_rsci_data,
+	},
+#endif	/* CONFIG_SERIAL_RSCI */
 	/* Family-specific types */
 	{
 		.compatible = "renesas,rcar-gen1-scif",
@@ -3437,6 +3486,9 @@ static const struct of_device_id of_sci_match[] __maybe_unused = {
 	}, {
 		.compatible = "renesas,rcar-gen4-scif",
 		.data = &of_sci_rcar_scif
+	}, {
+		.compatible = "renesas,rcar-gen5-scif",
+		.data = &of_sci_rcar_scif
 	},
 	/* Generic types */
 	{
@@ -3682,8 +3734,8 @@ static int sci_probe(struct platform_device *dev)
 		if (ret)
 			return ret;
 	}
-	if (sp->port.type == PORT_SCIFA || sp->port.type == PORT_SCIFB ||
-	    sp->port.type == PORT_HSCIF) {
+	if (sp->type == PORT_SCIFA || sp->type == PORT_SCIFB ||
+	    sp->type == PORT_HSCIF || sp->type == SCI_PORT_RSCI) {
 		ret = device_create_file(&dev->dev, &dev_attr_rx_fifo_timeout);
 		if (ret) {
 			if (sp->port.fifosize > 1) {
@@ -3702,7 +3754,7 @@ static int sci_probe(struct platform_device *dev)
 	return 0;
 }
 
-static __maybe_unused int sci_suspend(struct device *dev)
+static int sci_suspend(struct device *dev)
 {
 	struct sci_port *sport = dev_get_drvdata(dev);
 
@@ -3720,7 +3772,7 @@ static __maybe_unused int sci_suspend(struct device *dev)
 	return 0;
 }
 
-static __maybe_unused int sci_resume(struct device *dev)
+static int sci_resume(struct device *dev)
 {
 	struct sci_port *sport = dev_get_drvdata(dev);
 
@@ -3741,14 +3793,14 @@ static __maybe_unused int sci_resume(struct device *dev)
 	return 0;
 }
 
-static SIMPLE_DEV_PM_OPS(sci_dev_pm_ops, sci_suspend, sci_resume);
+static DEFINE_SIMPLE_DEV_PM_OPS(sci_dev_pm_ops, sci_suspend, sci_resume);
 
 static struct platform_driver sci_driver = {
 	.probe		= sci_probe,
 	.remove		= sci_remove,
 	.driver		= {
 		.name	= "sh-sci",
-		.pm	= &sci_dev_pm_ops,
+		.pm	= pm_sleep_ptr(&sci_dev_pm_ops),
 		.of_match_table = of_match_ptr(of_sci_match),
 	},
 };
@@ -3799,8 +3851,11 @@ int __init scix_early_console_setup(struct earlycon_device *device,
 	if (!device->port.membase)
 		return -ENODEV;
 
-	device->port.type = data->type;
+	device->port.type = SCI_PUBLIC_PORT_ID(data->type);
+
 	sci_ports[0].port = device->port;
+	sci_ports[0].type = data->type;
+	sci_ports[0].regtype = data->regtype;
 
 	port_cfg.type = data->type;
 	port_cfg.regtype = data->regtype;