diff mbox series

[v1,5/7] serial: imx: remove redundant USR2 read from FIFO reading loop

Message ID 20230201142700.4346-6-sorganov@gmail.com (mailing list archive)
State New, archived
Headers show
Series [v1,1/7] serial: imx: factor-out common code to imx_uart_soft_reset() | expand

Commit Message

Sergey Organov Feb. 1, 2023, 2:26 p.m. UTC 
There is no need to read USR2 twice at every loop iteration: get rid of the
second read.

Signed-off-by: Sergey Organov <sorganov@gmail.com>
---
 drivers/tty/serial/imx.c | 1 -
 1 file changed, 1 deletion(-)
diff mbox series

Patch

diff --git a/drivers/tty/serial/imx.c b/drivers/tty/serial/imx.c
index 797c441088a9..af4349fe6970 100644
--- a/drivers/tty/serial/imx.c
+++ b/drivers/tty/serial/imx.c
@@ -904,7 +904,6 @@  static irqreturn_t __imx_uart_rxint(int irq, void *dev_id)
 
 		rx = imx_uart_readl(sport, URXD0);
 
-		usr2 = imx_uart_readl(sport, USR2);
 		if (usr2 & USR2_BRCD) {
 			imx_uart_writel(sport, USR2_BRCD, USR2);
 			if (uart_handle_break(&sport->port))