diff options
| author | Fugang Duan <b38611@freescale.com> | 2015-07-17 11:43:31 +0800 |
|---|---|---|
| committer | Jason Liu <jason.hui.liu@nxp.com> | 2019-02-12 10:21:52 +0800 |
| commit | 7610f32653dc0fa718cb275a795103703975a2c2 (patch) | |
| tree | 45315acdb4a6bc2d552ba81463c7ae3ebc354565 /drivers/tty/serial/imx.c | |
| parent | a75767c774c3202db67a2ab7843b8c0d03f9e8ab (diff) | |
MLK-11258 tty: serial: imx: disable overrun interrupt during uart port shutdown
Also disable rx fifo overrun interrupt during uart port shutdown.
Signed-off-by: Fugang Duan <B38611@freescale.com>
(cherry picked from commit: 39eb703f6c9f9359723f3fa22e798b1d21b44c67)
Diffstat (limited to 'drivers/tty/serial/imx.c')
| -rw-r--r-- | drivers/tty/serial/imx.c | 10 |
1 files changed, 6 insertions, 4 deletions
diff --git a/drivers/tty/serial/imx.c b/drivers/tty/serial/imx.c index b91a4671a5a0..4274b1a49e4e 100644 --- a/drivers/tty/serial/imx.c +++ b/drivers/tty/serial/imx.c @@ -405,12 +405,14 @@ static void imx_stop_rx(struct uart_port *port) } } - temp = readl(sport->port.membase + UCR2); - writel(temp & ~UCR2_RXEN, sport->port.membase + UCR2); - - /* disable the `Receiver Ready Interrrupt` */ + /* disable the Receiver Ready and overrun Interrrupt */ temp = readl(sport->port.membase + UCR1); writel(temp & ~UCR1_RRDYEN, sport->port.membase + UCR1); + temp = readl(sport->port.membase + UCR4); + writel(temp & ~UCR4_OREN, sport->port.membase + UCR4); + + temp = readl(sport->port.membase + UCR2); + writel(temp & ~UCR2_RXEN, sport->port.membase + UCR2); } /* |