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serial: fsl_lpuart: 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/20221019091151.6692-17-ilpo.jarvinen@linux.intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Ilpo Järvinen 2022-10-19 12:11:23 +03:00 committed by Greg Kroah-Hartman
parent 7840a92a3e
commit cacf7f689b
1 changed files with 2 additions and 5 deletions
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7
drivers/tty/serial/fsl_lpuart.c
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@ -535,9 +535,7 @@ static void lpuart_dma_tx_complete(void *arg)
dma_unmap_sg(chan->device->dev, sgl, sport->dma_tx_nents,
DMA_TO_DEVICE);
xmit->tail = (xmit->tail + sport->dma_tx_bytes) & (UART_XMIT_SIZE - 1);
sport->port.icount.tx += sport->dma_tx_bytes;
uart_xmit_advance(&sport->port, sport->dma_tx_bytes);
sport->dma_tx_in_progress = false;
spin_unlock_irqrestore(&sport->port.lock, flags);
@ -772,8 +770,7 @@ static inline void lpuart32_transmit_buffer(struct lpuart_port *sport)
txcnt &= UARTWATER_COUNT_MASK;
while (!uart_circ_empty(xmit) && (txcnt < sport->txfifo_size)) {
lpuart32_write(&sport->port, xmit->buf[xmit->tail], UARTDATA);
xmit->tail = (xmit->tail + 1) & (UART_XMIT_SIZE - 1);
sport->port.icount.tx++;
uart_xmit_advance(&sport->port, 1);
txcnt = lpuart32_read(&sport->port, UARTWATER);
txcnt = txcnt >> UARTWATER_TXCNT_OFF;
txcnt &= UARTWATER_COUNT_MASK;