[PATCH 3/5] serial: 8250_dw: Map IO memory
From: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Date: 2012-11-28 12:48:23
Also in:
lkml
Subsystem:
8250/16?50 (and clone uarts) serial driver, synopsys designware 8250 uart driver, the rest, tty layer and serial drivers · Maintainers:
Greg Kroah-Hartman, Ilpo Järvinen, Linus Torvalds, Jiri Slaby
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;
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1.7.10.4