serial: sh-sci: Add RSCI_PORT_SCIF32 port ID

The RZ/G3E RSCI IP has 32-stage FIFO compared to 16-stage FIFO on RZ/T2H.
Add RSCI_PORT_SCIF32 port ID to differentiate it from RZ/T2H RSCI and
update sci_is_rsci_type() and sci_is_fifo_type()

Signed-off-by: Biju Das <biju.das.jz@bp.renesas.com>
Tested-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
Link: https://patch.msgid.link/20251129164325.209213-13-biju.das.jz@bp.renesas.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/tty/serial/sh-sci-common.h b/drivers/tty/serial/sh-sci-common.h
index 1b9480c7f4cb1487ade872eeaae0c92716b40770..abcd5bcc7c3692a162296f539c65dacb8ee6232c 100644 (file)
--- a/drivers/tty/serial/sh-sci-common.h
+++ b/drivers/tty/serial/sh-sci-common.h
@@ -8,6 +8,7 @@
 /* Private port IDs */
 enum SCI_PORT_TYPE {
        RSCI_PORT_SCIF16 = BIT(7) | 0,
+       RSCI_PORT_SCIF32 = BIT(7) | 1,
 };
 
 enum SCI_CLKS {

diff --git a/drivers/tty/serial/sh-sci.c b/drivers/tty/serial/sh-sci.c
index 624ef41701f278292fe4f8e418a0f477cabf8ebd..a63370f22574b7580ac49c7034db012291bd7cba 100644 (file)
--- a/drivers/tty/serial/sh-sci.c
+++ b/drivers/tty/serial/sh-sci.c
@@ -1184,7 +1184,7 @@ static int sci_handle_errors(struct uart_port *port)
 
 static bool sci_is_rsci_type(u8 type)
 {
-       return (type == RSCI_PORT_SCIF16);
+       return (type == RSCI_PORT_SCIF16 || type == RSCI_PORT_SCIF32);
 }
 
 static int sci_handle_fifo_overrun(struct uart_port *port)