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serial: sh-sci: Add sci_is_rsci_type()

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Add sci_is_rsci_type() for RSCI port type. This will simplify the code
when the support added for RSCI_PORT_SCIF32 private PORT type.

Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
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/20251129164325.209213-11-biju.das.jz@bp.renesas.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Biju Das
2025-11-29 16:43:06 +00:00
committed by Greg Kroah-Hartman
parent 850ec92892
commit 7d8b226bf9
1 changed files with 9 additions and 4 deletions
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13
drivers/tty/serial/sh-sci.c
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@@ -1182,6 +1182,11 @@ static int sci_handle_errors(struct uart_port *port)
return copied;
}
static bool sci_is_rsci_type(u8 type)
{
return (type == SCI_PORT_RSCI);
}
static int sci_handle_fifo_overrun(struct uart_port *port)
{
struct tty_port *tport = &port->state->port;
@@ -1190,7 +1195,7 @@ static int sci_handle_fifo_overrun(struct uart_port *port)
int copied = 0;
u32 status;
if (s->type != SCI_PORT_RSCI) {
if (!sci_is_rsci_type(s->type)) {
reg = sci_getreg(port, s->params->overrun_reg);
if (!reg->size)
return 0;
@@ -1198,7 +1203,7 @@ static int sci_handle_fifo_overrun(struct uart_port *port)
status = s->ops->read_reg(port, s->params->overrun_reg);
if (status & s->params->overrun_mask) {
if (s->type == SCI_PORT_RSCI) {
if (sci_is_rsci_type(s->type)) {
/*
* All of the CFCLR_*C clearing bits match the corresponding
* CSR_*status bits. So, reuse the overrun mask for clearing.
@@ -2015,7 +2020,7 @@ static irqreturn_t sci_tx_end_interrupt(int irq, void *ptr)
unsigned long flags;
u32 ctrl;
if (s->type != PORT_SCI && s->type != SCI_PORT_RSCI)
if (s->type != PORT_SCI && !sci_is_rsci_type(s->type))
return sci_tx_interrupt(irq, ptr);
uart_port_lock_irqsave(port, &flags);
@@ -3289,7 +3294,7 @@ static int sci_init_single(struct platform_device *dev,
* The fourth interrupt on SCI and RSCI port is transmit end interrupt, so
* shuffle the interrupts.
*/
if (p->type == PORT_SCI || p->type == SCI_PORT_RSCI)
if (p->type == PORT_SCI || sci_is_rsci_type(p->type))
swap(sci_port->irqs[SCIx_BRI_IRQ], sci_port->irqs[SCIx_TEI_IRQ]);
/* The SCI generates several interrupts. They can be muxed together or