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Code Issues Releases Wiki Activity

serial: sprd: Use uart_xmit_advance()

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Take advantage of the new uart_xmit_advance() helper.

Reviewed-by: Baolin Wang <baolin.wang@linux.alibaba.com>
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Link: https://lore.kernel.org/r/20221019091151.6692-34-ilpo.jarvinen@linux.intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Ilpo Järvinen 2022-10-19 12:11:40 +03:00 committed by Greg Kroah-Hartman
parent e234ef0ef1
commit b92df54ccf
1 changed files with 2 additions and 5 deletions
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7
drivers/tty/serial/sprd_serial.c
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@ -206,7 +206,6 @@ static void sprd_stop_tx_dma(struct uart_port *port)
{
struct sprd_uart_port *sp =
container_of(port, struct sprd_uart_port, port);
struct circ_buf *xmit = &port->state->xmit;
struct dma_tx_state state;
u32 trans_len;
@ -215,8 +214,7 @@ static void sprd_stop_tx_dma(struct uart_port *port)
dmaengine_tx_status(sp->tx_dma.chn, sp->tx_dma.cookie, &state);
if (state.residue) {
trans_len = state.residue - sp->tx_dma.phys_addr;
xmit->tail = (xmit->tail + trans_len) & (UART_XMIT_SIZE - 1);
port->icount.tx += trans_len;
uart_xmit_advance(port, trans_len);
dma_unmap_single(port->dev, sp->tx_dma.phys_addr,
sp->tx_dma.trans_len, DMA_TO_DEVICE);
}
@ -253,8 +251,7 @@ static void sprd_complete_tx_dma(void *data)
dma_unmap_single(port->dev, sp->tx_dma.phys_addr,
sp->tx_dma.trans_len, DMA_TO_DEVICE);
xmit->tail = (xmit->tail + sp->tx_dma.trans_len) & (UART_XMIT_SIZE - 1);
port->icount.tx += sp->tx_dma.trans_len;
uart_xmit_advance(port, sp->tx_dma.trans_len);
if (uart_circ_chars_pending(xmit) < WAKEUP_CHARS)
uart_write_wakeup(port);