[PATCH v3 07/13] serial: sh-sci: Add RSCI_PORT_{SCI,SCIF} port IDs
From: Biju
Date: Fri Nov 14 2025 - 05:52:10 EST
From: Biju Das <biju.das.jz@xxxxxxxxxxxxxx>
RZ/G3E RSCI tx/rx supports both FIFO and non-FIFO mode. It has 32-stage
FIFO. Add RSCI_PORT_SCI port ID for non-FIFO mode and RSCI_PORT_SCIF port
ID for FIFO mode. Update the rx_trigger for both these modes.
Signed-off-by: Biju Das <biju.das.jz@xxxxxxxxxxxxxx>
---
v2->v3:
* No change.
v1->v2:
* No change.
---
drivers/tty/serial/sh-sci-common.h | 2 ++
drivers/tty/serial/sh-sci.c | 3 +++
2 files changed, 5 insertions(+)
diff --git a/drivers/tty/serial/sh-sci-common.h b/drivers/tty/serial/sh-sci-common.h
index e3c028df14f1..77f9a67d8efc 100644
--- a/drivers/tty/serial/sh-sci-common.h
+++ b/drivers/tty/serial/sh-sci-common.h
@@ -8,6 +8,8 @@
/* Private port IDs */
enum SCI_PORT_TYPE {
SCI_PORT_RSCI = BIT(7) | 0,
+ RSCI_PORT_SCI = BIT(7) | 1,
+ RSCI_PORT_SCIF = BIT(7) | 2,
};
enum SCI_CLKS {
diff --git a/drivers/tty/serial/sh-sci.c b/drivers/tty/serial/sh-sci.c
index 78fb3b6a318b..66ab85571230 100644
--- a/drivers/tty/serial/sh-sci.c
+++ b/drivers/tty/serial/sh-sci.c
@@ -3326,6 +3326,9 @@ static int sci_init_single(struct platform_device *dev,
case SCI_PORT_RSCI:
sci_port->rx_trigger = 15;
break;
+ case RSCI_PORT_SCIF:
+ sci_port->rx_trigger = 32;
+ break;
default:
sci_port->rx_trigger = 1;
break;
--
2.43.0