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- From 4dc6f2b9d454099445b8bc3a4a6328761335ce4d Mon Sep 17 00:00:00 2001
- From: Fugang Duan <[email protected]>
- Date: Wed, 11 Sep 2019 16:23:25 +0800
- Subject: [PATCH] tty: serial: fsl_lpuart: enable loopback mode
- Enable lpuart32 loopback mode.
- Signed-off-by: Fugang Duan <[email protected]>
- ---
- drivers/tty/serial/fsl_lpuart.c | 8 ++++++++
- 1 file changed, 8 insertions(+)
- --- a/drivers/tty/serial/fsl_lpuart.c
- +++ b/drivers/tty/serial/fsl_lpuart.c
- @@ -1477,6 +1477,14 @@ static void lpuart32_set_mctrl(struct ua
- temp |= UARTMODIR_TXCTSE;
-
- lpuart32_write(port, temp, UARTMODIR);
- +
- + temp = lpuart32_read(port, UARTCTRL);
- + if (mctrl & TIOCM_LOOP)
- + temp |= UARTCTRL_LOOPS;
- + else
- + temp &= ~UARTCTRL_LOOPS;
- +
- + lpuart32_write(port, temp, UARTCTRL);
- }
-
- static void lpuart_break_ctl(struct uart_port *port, int break_state)
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