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    Subject[PATCH 3/5] serial: 8250_dw: Map IO memory
    Date
    This needs to be done in order to later access the
    Designware specific registers.

    Signed-off-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
    ---
    drivers/tty/serial/8250/8250_dw.c | 7 +++++--
    1 file changed, 5 insertions(+), 2 deletions(-)

    diff --git a/drivers/tty/serial/8250/8250_dw.c b/drivers/tty/serial/8250/8250_dw.c
    index 8d45be5..8394f85 100644
    --- a/drivers/tty/serial/8250/8250_dw.c
    +++ b/drivers/tty/serial/8250/8250_dw.c
    @@ -111,10 +111,13 @@ static int __devinit dw8250_probe(struct platform_device *pdev)
    uart.port.irq = irq->start;
    uart.port.handle_irq = dw8250_handle_irq;
    uart.port.type = PORT_8250;
    - uart.port.flags = UPF_SHARE_IRQ | UPF_BOOT_AUTOCONF | UPF_IOREMAP |
    - UPF_FIXED_PORT;
    + uart.port.flags = UPF_SHARE_IRQ | UPF_BOOT_AUTOCONF | UPF_FIXED_PORT;
    uart.port.dev = &pdev->dev;

    + uart.port.membase = ioremap(regs->start, regs->end - regs->start);
    + if (!uart.port.membase)
    + return -ENOMEM;
    +
    uart.port.iotype = UPIO_MEM;
    uart.port.serial_in = dw8250_serial_in;
    uart.port.serial_out = dw8250_serial_out;
    --
    1.7.10.4


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