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| author | Sherry Sun <sherry.sun@nxp.com> | 2022-12-14 11:11:37 +0800 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2023-01-19 15:05:37 +0100 |
| commit | 509597ebcac4d61fc012ea3ccd364581a8ca3926 (patch) | |
| tree | 68444541984dfe7da655c0584b6952008c993d64 /drivers/tty/serial | |
| parent | 10929eac4144a656a966da69d8a5491395dc0a99 (diff) | |
| download | linux-stable-509597ebcac4d61fc012ea3ccd364581a8ca3926.tar.gz linux-stable-509597ebcac4d61fc012ea3ccd364581a8ca3926.tar.bz2 linux-stable-509597ebcac4d61fc012ea3ccd364581a8ca3926.zip | |
tty: serial: imx: disable the break condition when shutdown the uart port
The comment in imx_uart_shutdown() says to disable the break condition,
but it doesn't actually do that, here fix this by disabling UCR1_SNDBRK
when closing the uart port like other uart drivers do.
Signed-off-by: Sherry Sun <sherry.sun@nxp.com>
Link: https://lore.kernel.org/r/20221214031137.28815-4-sherry.sun@nxp.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/tty/serial')
| -rw-r--r-- | drivers/tty/serial/imx.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/drivers/tty/serial/imx.c b/drivers/tty/serial/imx.c index 757825edb0cd..74c9e68fc3bd 100644 --- a/drivers/tty/serial/imx.c +++ b/drivers/tty/serial/imx.c @@ -1564,7 +1564,8 @@ static void imx_uart_shutdown(struct uart_port *port) spin_lock_irqsave(&sport->port.lock, flags); ucr1 = imx_uart_readl(sport, UCR1); - ucr1 &= ~(UCR1_TRDYEN | UCR1_RRDYEN | UCR1_RTSDEN | UCR1_RXDMAEN | UCR1_ATDMAEN); + ucr1 &= ~(UCR1_TRDYEN | UCR1_RRDYEN | UCR1_RTSDEN | UCR1_RXDMAEN | + UCR1_ATDMAEN | UCR1_SNDBRK); /* See SER_RS485_ENABLED/UTS_LOOP comment in imx_uart_probe() */ if (port->rs485.flags & SER_RS485_ENABLED && port->rs485.flags & SER_RS485_RTS_ON_SEND && |