iv/linux
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

serial: stm32: Use uart_xmit_advance()

Browse Source 
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/20221019091151.6692-35-ilpo.jarvinen@linux.intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Ilpo Järvinen 2022-10-19 12:11:41 +03:00 committed by Greg Kroah-Hartman
parent b92df54ccf
commit 29d8c07b49
1 changed files with 3 additions and 4 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

7
drivers/tty/serial/stm32-usart.c
View File

@ -596,8 +596,7 @@ static void stm32_usart_transmit_chars_pio(struct uart_port *port)
if (!(readl_relaxed(port->membase + ofs->isr) & USART_SR_TXE))
break;
writel_relaxed(xmit->buf[xmit->tail], port->membase + ofs->tdr);
xmit->tail = (xmit->tail + 1) & (UART_XMIT_SIZE - 1);
port->icount.tx++;
uart_xmit_advance(port, 1);
}
/* rely on TXE irq (mask or unmask) for sending remaining data */
@ -673,8 +672,8 @@ static void stm32_usart_transmit_chars_dma(struct uart_port *port)
stm32_usart_set_bits(port, ofs->cr3, USART_CR3_DMAT);
xmit->tail = (xmit->tail + count) & (UART_XMIT_SIZE - 1);
port->icount.tx += count;
uart_xmit_advance(port, count);
return;
fallback_err: