diff options
Diffstat (limited to 'drivers/tty/serial/imx.c')
| -rw-r--r-- | drivers/tty/serial/imx.c | 13 |
1 files changed, 9 insertions, 4 deletions
diff --git a/drivers/tty/serial/imx.c b/drivers/tty/serial/imx.c index 90f82e6c54e4..df8a0c8b8b29 100644 --- a/drivers/tty/serial/imx.c +++ b/drivers/tty/serial/imx.c @@ -486,18 +486,21 @@ static void imx_uart_stop_tx(struct uart_port *port) static void imx_uart_stop_rx(struct uart_port *port) { struct imx_port *sport = (struct imx_port *)port; - u32 ucr1, ucr2; + u32 ucr1, ucr2, ucr4; ucr1 = imx_uart_readl(sport, UCR1); ucr2 = imx_uart_readl(sport, UCR2); + ucr4 = imx_uart_readl(sport, UCR4); if (sport->dma_is_enabled) { ucr1 &= ~(UCR1_RXDMAEN | UCR1_ATDMAEN); } else { ucr1 &= ~UCR1_RRDYEN; ucr2 &= ~UCR2_ATEN; + ucr4 &= ~UCR4_OREN; } imx_uart_writel(sport, ucr1, UCR1); + imx_uart_writel(sport, ucr4, UCR4); ucr2 &= ~UCR2_RXEN; imx_uart_writel(sport, ucr2, UCR2); @@ -1544,7 +1547,7 @@ static void imx_uart_shutdown(struct uart_port *port) imx_uart_writel(sport, ucr1, UCR1); ucr4 = imx_uart_readl(sport, UCR4); - ucr4 &= ~(UCR4_OREN | UCR4_TCEN); + ucr4 &= ~UCR4_TCEN; imx_uart_writel(sport, ucr4, UCR4); spin_unlock_irqrestore(&sport->port.lock, flags); @@ -2482,10 +2485,12 @@ static void imx_uart_enable_wakeup(struct imx_port *sport, bool on) if (sport->have_rtscts) { u32 ucr1 = imx_uart_readl(sport, UCR1); - if (on) + if (on) { + imx_uart_writel(sport, USR1_RTSD, USR1); ucr1 |= UCR1_RTSDEN; - else + } else { ucr1 &= ~UCR1_RTSDEN; + } imx_uart_writel(sport, ucr1, UCR1); } } |