diff options
Diffstat (limited to 'drivers/tty/serial/imx.c')
| -rw-r--r-- | drivers/tty/serial/imx.c | 18 |
1 files changed, 8 insertions, 10 deletions
diff --git a/drivers/tty/serial/imx.c b/drivers/tty/serial/imx.c index 88250395b0ce..2c90dc31bfaa 100644 --- a/drivers/tty/serial/imx.c +++ b/drivers/tty/serial/imx.c @@ -239,7 +239,7 @@ static struct imx_uart_data imx_uart_devdata[] = { }, }; -static struct platform_device_id imx_uart_devtype[] = { +static const struct platform_device_id imx_uart_devtype[] = { { .name = "imx1-uart", .driver_data = (kernel_ulong_t) &imx_uart_devdata[IMX1_UART], @@ -853,7 +853,7 @@ static void imx_break_ctl(struct uart_port *port, int break_state) #define TXTL 2 /* reset default */ #define RXTL 1 /* reset default */ -static int imx_setup_ufcr(struct imx_port *sport, unsigned int mode) +static void imx_setup_ufcr(struct imx_port *sport, unsigned int mode) { unsigned int val; @@ -861,7 +861,6 @@ static int imx_setup_ufcr(struct imx_port *sport, unsigned int mode) val = readl(sport->port.membase + UFCR) & (UFCR_RFDIV | UFCR_DCEDTE); val |= TXTL << UFCR_TXTL_SHF | RXTL; writel(val, sport->port.membase + UFCR); - return 0; } #define RX_BUF_SIZE (PAGE_SIZE) @@ -1122,6 +1121,12 @@ 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; @@ -1132,13 +1137,6 @@ static int imx_startup(struct uart_port *port) while (!(readl(sport->port.membase + UCR2) & UCR2_SRST) && (--i > 0)) udelay(1); - /* 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); - /* * Finally, clear and enable interrupts */ |