diff options
| author | Biju Das <biju.das.jz@bp.renesas.com> | 2025-11-29 16:43:06 +0000 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2025-12-17 15:07:07 +0100 |
| commit | 7d8b226bf95cd2b49f15da4f4d40e05932c0d4cc (patch) | |
| tree | bcfe315eed5b78c6159c6ed86ff649cabce643f1 /drivers | |
| parent | 850ec928922fb819c28eb175bf85b01e28afdea7 (diff) | |
serial: sh-sci: Add sci_is_rsci_type()
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>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/tty/serial/sh-sci.c | 13 |
1 files changed, 9 insertions, 4 deletions
diff --git a/drivers/tty/serial/sh-sci.c b/drivers/tty/serial/sh-sci.c index 704f175b14e4..b7fef518a2b8 100644 --- a/drivers/tty/serial/sh-sci.c +++ b/drivers/tty/serial/sh-sci.c @@ -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 |