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path: root/drivers/serial/8250.c
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Diffstat (limited to 'drivers/serial/8250.c')
-rw-r--r--drivers/serial/8250.c39
1 files changed, 23 insertions, 16 deletions
diff --git a/drivers/serial/8250.c b/drivers/serial/8250.c
index 186e96c47b3d..e08510d09ff6 100644
--- a/drivers/serial/8250.c
+++ b/drivers/serial/8250.c
@@ -40,6 +40,7 @@
#include <linux/serial_core.h>
#include <linux/serial.h>
#include <linux/serial_8250.h>
+#include <linux/nmi.h>
#include <asm/io.h>
#include <asm/irq.h>
@@ -998,7 +999,10 @@ static void autoconfig(struct uart_8250_port *up, unsigned int probeflags)
serial_outp(up, UART_MCR, save_mcr);
serial8250_clear_fifos(up);
(void)serial_in(up, UART_RX);
- serial_outp(up, UART_IER, 0);
+ if (up->capabilities & UART_CAP_UUE)
+ serial_outp(up, UART_IER, UART_IER_UUE);
+ else
+ serial_outp(up, UART_IER, 0);
out:
spin_unlock_irqrestore(&up->port.lock, flags);
@@ -2208,6 +2212,8 @@ serial8250_console_write(struct console *co, const char *s, unsigned int count)
unsigned int ier;
int i;
+ touch_nmi_watchdog();
+
/*
* First save the UER then disable the interrupts
*/
@@ -2378,9 +2384,9 @@ void serial8250_resume_port(int line)
* list is terminated with a zero flags entry, which means we expect
* all entries to have at least UPF_BOOT_AUTOCONF set.
*/
-static int __devinit serial8250_probe(struct device *dev)
+static int __devinit serial8250_probe(struct platform_device *dev)
{
- struct plat_serial8250_port *p = dev->platform_data;
+ struct plat_serial8250_port *p = dev->dev.platform_data;
struct uart_port port;
int ret, i;
@@ -2396,12 +2402,12 @@ static int __devinit serial8250_probe(struct device *dev)
port.flags = p->flags;
port.mapbase = p->mapbase;
port.hub6 = p->hub6;
- port.dev = dev;
+ port.dev = &dev->dev;
if (share_irqs)
port.flags |= UPF_SHARE_IRQ;
ret = serial8250_register_port(&port);
if (ret < 0) {
- dev_err(dev, "unable to register port at index %d "
+ dev_err(&dev->dev, "unable to register port at index %d "
"(IO%lx MEM%lx IRQ%d): %d\n", i,
p->iobase, p->mapbase, p->irq, ret);
}
@@ -2412,54 +2418,55 @@ static int __devinit serial8250_probe(struct device *dev)
/*
* Remove serial ports registered against a platform device.
*/
-static int __devexit serial8250_remove(struct device *dev)
+static int __devexit serial8250_remove(struct platform_device *dev)
{
int i;
for (i = 0; i < UART_NR; i++) {
struct uart_8250_port *up = &serial8250_ports[i];
- if (up->port.dev == dev)
+ if (up->port.dev == &dev->dev)
serial8250_unregister_port(i);
}
return 0;
}
-static int serial8250_suspend(struct device *dev, pm_message_t state)
+static int serial8250_suspend(struct platform_device *dev, pm_message_t state)
{
int i;
for (i = 0; i < UART_NR; i++) {
struct uart_8250_port *up = &serial8250_ports[i];
- if (up->port.type != PORT_UNKNOWN && up->port.dev == dev)
+ if (up->port.type != PORT_UNKNOWN && up->port.dev == &dev->dev)
uart_suspend_port(&serial8250_reg, &up->port);
}
return 0;
}
-static int serial8250_resume(struct device *dev)
+static int serial8250_resume(struct platform_device *dev)
{
int i;
for (i = 0; i < UART_NR; i++) {
struct uart_8250_port *up = &serial8250_ports[i];
- if (up->port.type != PORT_UNKNOWN && up->port.dev == dev)
+ if (up->port.type != PORT_UNKNOWN && up->port.dev == &dev->dev)
uart_resume_port(&serial8250_reg, &up->port);
}
return 0;
}
-static struct device_driver serial8250_isa_driver = {
- .name = "serial8250",
- .bus = &platform_bus_type,
+static struct platform_driver serial8250_isa_driver = {
.probe = serial8250_probe,
.remove = __devexit_p(serial8250_remove),
.suspend = serial8250_suspend,
.resume = serial8250_resume,
+ .driver = {
+ .name = "serial8250",
+ },
};
/*
@@ -2605,7 +2612,7 @@ static int __init serial8250_init(void)
serial8250_register_ports(&serial8250_reg, &serial8250_isa_devs->dev);
- ret = driver_register(&serial8250_isa_driver);
+ ret = platform_driver_register(&serial8250_isa_driver);
if (ret == 0)
goto out;
@@ -2627,7 +2634,7 @@ static void __exit serial8250_exit(void)
*/
serial8250_isa_devs = NULL;
- driver_unregister(&serial8250_isa_driver);
+ platform_driver_unregister(&serial8250_isa_driver);
platform_device_unregister(isa_dev);
uart_unregister_driver(&serial8250_reg);