diff options
| author | Sergey Organov <sorganov@gmail.com> | 2023-02-01 15:26:58 +0100 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2023-02-08 13:12:02 +0100 |
| commit | 0fbca4798af88c20a2b9e4c98ac762408a24b668 (patch) | |
| tree | 518d17b9115e9a52e6ae06878adaf094f879ba49 | |
| parent | serial: imx: do not break from FIFO reading loop prematurely (diff) | |
| download | linux-0fbca4798af88c20a2b9e4c98ac762408a24b668.tar.xz linux-0fbca4798af88c20a2b9e4c98ac762408a24b668.zip | |
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: Sergey Organov <sorganov@gmail.com>
Link: https://lore.kernel.org/r/20230201142700.4346-6-sorganov@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| -rw-r--r-- | drivers/tty/serial/imx.c | 1 |
1 files changed, 0 insertions, 1 deletions
diff --git a/drivers/tty/serial/imx.c b/drivers/tty/serial/imx.c index ef0b9d353617..c578cdc6d8da 100644 --- a/drivers/tty/serial/imx.c +++ b/drivers/tty/serial/imx.c @@ -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)) |