diff mbox series

[V2,3/5] tty: serial: fsl_lpuart: clear UARTMODIR register in lpuart32_shutdown()

Message ID 20221110081728.10172-4-sherry.sun@nxp.com
State New
Headers
Series fsl_lpuart: improve Idle Line Interrupt and registers handle in .shutdown() |

Commit Message

Sherry Sun Nov. 10, 2022, 8:17 a.m. UTC 
  UARTMODIR register is configured in lpuart32_set_termios() according to
the termios flags, but nowhere clear it, should clear it when shutdown
the uart port.

Fixes: 380c966c093e ("tty: serial: fsl_lpuart: add 32-bit register interface support")
Signed-off-by: Sherry Sun <sherry.sun@nxp.com>
---
Changes in V2:
1. Split one patch into four smaller patches to improve the commit
messages and add Fixes tag as suggested by Ilpo.
---
 drivers/tty/serial/fsl_lpuart.c | 1 +
 1 file changed, 1 insertion(+)
diff mbox series

Patch

diff --git a/drivers/tty/serial/fsl_lpuart.c b/drivers/tty/serial/fsl_lpuart.c
index dbf8cccea105..a6f7b056d57b 100644
--- a/drivers/tty/serial/fsl_lpuart.c
+++ b/drivers/tty/serial/fsl_lpuart.c
@@ -1775,6 +1775,7 @@  static void lpuart32_shutdown(struct uart_port *port)
 			UARTCTRL_TIE | UARTCTRL_TCIE | UARTCTRL_RIE |
 			UARTCTRL_LOOPS);
 	lpuart32_write(port, temp, UARTCTRL);
+	lpuart32_write(port, 0, UARTMODIR);
 
 	spin_unlock_irqrestore(&port->lock, flags);