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serial: imx: Use uart_xmit_advance()

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Take advantage of the new uart_xmit_advance() helper.

Reviewed-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Link: https://lore.kernel.org/r/20221019091151.6692-18-ilpo.jarvinen@linux.intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Ilpo Järvinen 2022-10-19 12:11:24 +03:00 committed by Greg Kroah-Hartman
parent cacf7f689b
commit 26e8f1d9a8
1 changed files with 2 additions and 5 deletions
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7
drivers/tty/serial/imx.c
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@ -563,8 +563,7 @@ static inline void imx_uart_transmit_buffer(struct imx_port *sport)
/* send xmit->buf[xmit->tail]
* out the port here */
imx_uart_writel(sport, xmit->buf[xmit->tail], URTX0);
xmit->tail = (xmit->tail + 1) & (UART_XMIT_SIZE - 1);
sport->port.icount.tx++;
uart_xmit_advance(&sport->port, 1);
}
if (uart_circ_chars_pending(xmit) < WAKEUP_CHARS)
@ -590,9 +589,7 @@ static void imx_uart_dma_tx_callback(void *data)
ucr1 &= ~UCR1_TXDMAEN;
imx_uart_writel(sport, ucr1, UCR1);
/* update the stat */
xmit->tail = (xmit->tail + sport->tx_bytes) & (UART_XMIT_SIZE - 1);
sport->port.icount.tx += sport->tx_bytes;
uart_xmit_advance(&sport->port, sport->tx_bytes);
dev_dbg(sport->port.dev, "we finish the TX DMA.\n");