diff options
| -rw-r--r-- | drivers/tty/serial/imx.c | 15 |
1 files changed, 8 insertions, 7 deletions
diff --git a/drivers/tty/serial/imx.c b/drivers/tty/serial/imx.c index f1366cf4e6a9..dcbfa5e1fb34 100644 --- a/drivers/tty/serial/imx.c +++ b/drivers/tty/serial/imx.c @@ -1125,6 +1125,11 @@ static int imx_startup(struct uart_port *port) writel(temp & ~UCR4_DREN, sport->port.membase + UCR4); + /* Can we enable the DMA support? */ + if (is_imx6q_uart(sport) && !uart_console(port) && + !sport->dma_is_inited) + imx_uart_dma_init(sport); + spin_lock_irqsave(&sport->port.lock, flags); /* Reset fifo's and state machines */ i = 100; @@ -1142,6 +1147,9 @@ static int imx_startup(struct uart_port *port) writel(USR1_RTSD, sport->port.membase + USR1); writel(USR2_ORE, sport->port.membase + USR2); + if (sport->dma_is_inited && !sport->dma_is_enabled) + imx_enable_dma(sport); + temp = readl(sport->port.membase + UCR1); temp |= UCR1_RRDYEN | UCR1_RTSDEN | UCR1_UARTEN; @@ -1312,11 +1320,6 @@ imx_set_termios(struct uart_port *port, struct ktermios *termios, } else { ucr2 |= UCR2_CTSC; } - - /* Can we enable the DMA support? */ - if (is_imx6q_uart(sport) && !uart_console(port) - && !sport->dma_is_inited) - imx_uart_dma_init(sport); } else { termios->c_cflag &= ~CRTSCTS; } @@ -1433,8 +1436,6 @@ imx_set_termios(struct uart_port *port, struct ktermios *termios, if (UART_ENABLE_MS(&sport->port, termios->c_cflag)) imx_enable_ms(&sport->port); - if (sport->dma_is_inited && !sport->dma_is_enabled) - imx_enable_dma(sport); spin_unlock_irqrestore(&sport->port.lock, flags); } |