Commit 0fbca479 authored by Sergey Organov's avatar Sergey Organov Committed by Greg Kroah-Hartman
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serial: imx: remove redundant USR2 read from FIFO reading loop 



There is no need to read USR2 twice at every loop iteration: get rid of the
second read.

Signed-off-by: default avatarSergey Organov <sorganov@gmail.com>
Link: https://lore.kernel.org/r/20230201142700.4346-6-sorganov@gmail.com


Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent fbf97170

drivers/tty/serial/imx.c

+0 −1
Original line number Diff line number Diff line
@@ -906,7 +906,6 @@ 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))