diff options
| author | Ilpo Järvinen <ilpo.jarvinen@linux.intel.com> | 2022-10-19 12:11:11 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2022-11-03 03:35:41 +0100 |
| commit | a5c9611ddc51b846dd699c3ce2a6bcbfa544ef20 (patch) | |
| tree | fa2550936f2f010dac2a93269d0c511ee3903faf | |
| parent | 1fcff75f3932bdc5ef923bbe8e973d1f3ed59096 (diff) | |
| download | linux-a5c9611ddc51b846dd699c3ce2a6bcbfa544ef20.tar.bz2 | |
serial: pch_uart: Use uart_xmit_advance()
Take advantage of the new uart_xmit_advance() helper.
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Link: https://lore.kernel.org/r/20221019091151.6692-5-ilpo.jarvinen@linux.intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| -rw-r--r-- | drivers/tty/serial/pch_uart.c | 12 |
1 files changed, 4 insertions, 8 deletions
diff --git a/drivers/tty/serial/pch_uart.c b/drivers/tty/serial/pch_uart.c index c59ce7886579..c76719c0f453 100644 --- a/drivers/tty/serial/pch_uart.c +++ b/drivers/tty/serial/pch_uart.c @@ -738,15 +738,12 @@ static void pch_dma_tx_complete(void *arg) { struct eg20t_port *priv = arg; struct uart_port *port = &priv->port; - struct circ_buf *xmit = &port->state->xmit; struct scatterlist *sg = priv->sg_tx_p; int i; - for (i = 0; i < priv->nent; i++, sg++) { - xmit->tail += sg_dma_len(sg); - port->icount.tx += sg_dma_len(sg); - } - xmit->tail &= UART_XMIT_SIZE - 1; + for (i = 0; i < priv->nent; i++, sg++) + uart_xmit_advance(port, sg_dma_len(sg)); + async_tx_ack(priv->desc_tx); dma_unmap_sg(port->dev, sg, priv->orig_nent, DMA_TO_DEVICE); priv->tx_dma_use = 0; @@ -843,8 +840,7 @@ static unsigned int handle_tx(struct eg20t_port *priv) while (!uart_tx_stopped(port) && !uart_circ_empty(xmit) && fifo_size) { iowrite8(xmit->buf[xmit->tail], priv->membase + PCH_UART_THR); - xmit->tail = (xmit->tail + 1) & (UART_XMIT_SIZE - 1); - port->icount.tx++; + uart_xmit_advance(port, 1); fifo_size--; tx_empty = 0; } |