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serial: sunsab: Use uart_xmit_advance()

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Take advantage of the new uart_xmit_advance() helper.

Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Link: https://lore.kernel.org/r/20221019091151.6692-38-ilpo.jarvinen@linux.intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Ilpo Järvinen 2022-10-19 12:11:44 +03:00 committed by Greg Kroah-Hartman
parent 54ffabbe22
commit 5aaae464d6
1 changed files with 2 additions and 4 deletions
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6
drivers/tty/serial/sunsab.c
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@ -266,8 +266,7 @@ static void transmit_chars(struct uart_sunsab_port *up,
for (i = 0; i < up->port.fifosize; i++) { for (i = 0; i < up->port.fifosize; i++) {
writeb(xmit->buf[xmit->tail], writeb(xmit->buf[xmit->tail],
&up->regs->w.xfifo[i]); &up->regs->w.xfifo[i]);
xmit->tail = (xmit->tail + 1) & (UART_XMIT_SIZE - 1); uart_xmit_advance(&up->port, 1);
up->port.icount.tx++;
if (uart_circ_empty(xmit)) if (uart_circ_empty(xmit))
break; break;
} }
@ -453,8 +452,7 @@ static void sunsab_start_tx(struct uart_port *port)
for (i = 0; i < up->port.fifosize; i++) { for (i = 0; i < up->port.fifosize; i++) {
writeb(xmit->buf[xmit->tail], writeb(xmit->buf[xmit->tail],
&up->regs->w.xfifo[i]); &up->regs->w.xfifo[i]);
xmit->tail = (xmit->tail + 1) & (UART_XMIT_SIZE - 1); uart_xmit_advance(&up->port, 1);
up->port.icount.tx++;
if (uart_circ_empty(xmit)) if (uart_circ_empty(xmit))
break; break;
} }