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serial: samsung_tty: Use uart_xmit_advance()

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Take advantage of the new uart_xmit_advance() helper.

Reviewed-by: Sam Protsenko <semen.protsenko@linaro.org>
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Link: https://lore.kernel.org/r/20221019091151.6692-29-ilpo.jarvinen@linux.intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Ilpo Järvinen 2022-10-19 12:11:35 +03:00 committed by Greg Kroah-Hartman
parent 3d4d838423
commit ec04d75fe4
1 changed files with 3 additions and 7 deletions
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10
drivers/tty/serial/samsung_tty.c
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@ -288,7 +288,6 @@ static void s3c24xx_serial_stop_tx(struct uart_port *port)
{
struct s3c24xx_uart_port *ourport = to_ourport(port);
struct s3c24xx_uart_dma *dma = ourport->dma;
struct circ_buf *xmit = &port->state->xmit;
struct dma_tx_state state;
int count;
@ -316,8 +315,7 @@ static void s3c24xx_serial_stop_tx(struct uart_port *port)
DMA_TO_DEVICE);
async_tx_ack(dma->tx_desc);
count = dma->tx_bytes_requested - state.residue;
xmit->tail = (xmit->tail + count) & (UART_XMIT_SIZE - 1);
port->icount.tx += count;
uart_xmit_advance(port, count);
}
ourport->tx_enabled = 0;
@ -351,8 +349,7 @@ static void s3c24xx_serial_tx_dma_complete(void *args)
spin_lock_irqsave(&port->lock, flags);
xmit->tail = (xmit->tail + count) & (UART_XMIT_SIZE - 1);
port->icount.tx += count;
uart_xmit_advance(port, count);
ourport->tx_in_progress = 0;
if (uart_circ_chars_pending(xmit) < WAKEUP_CHARS)
@ -916,8 +913,7 @@ static void s3c24xx_serial_tx_chars(struct s3c24xx_uart_port *ourport)
break;
wr_reg(port, S3C2410_UTXH, xmit->buf[xmit->tail]);
xmit->tail = (xmit->tail + 1) & (UART_XMIT_SIZE - 1);
port->icount.tx++;
uart_xmit_advance(port, 1);
count--;
}