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authorDavid Woodhouse <David.Woodhouse@intel.com>2010-03-26 14:55:59 +0000
committerDavid Woodhouse <David.Woodhouse@intel.com>2010-03-26 14:55:59 +0000
commit329f9052dbadf6f4afe2231668bd00c579a4aa10 (patch)
treee080a5c70df40f3ae8cf28a95a3267757668ab97 /drivers/serial/8250.c
parent395b228858778d3c44f7c413693a6acaa8bb62dc (diff)
parent220bf991b0366cc50a94feede3d7341fa5710ee4 (diff)
Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6
Conflicts: drivers/mtd/nand/sh_flctl.c Maxim's patch to initialise sysfs attributes depends on the patch which actually adds sysfs_attr_init().
Diffstat (limited to 'drivers/serial/8250.c')
-rw-r--r--drivers/serial/8250.c52
1 files changed, 39 insertions, 13 deletions
diff --git a/drivers/serial/8250.c b/drivers/serial/8250.c
index e9b15c3746f..c3db16b7afa 100644
--- a/drivers/serial/8250.c
+++ b/drivers/serial/8250.c
@@ -1217,12 +1217,6 @@ static void autoconfig(struct uart_8250_port *up, unsigned int probeflags)
}
#endif
-#ifdef CONFIG_SERIAL_8250_AU1X00
- /* if access method is AU, it is a 16550 with a quirk */
- if (up->port.type == PORT_16550A && up->port.iotype == UPIO_AU)
- up->bugs |= UART_BUG_NOMSR;
-#endif
-
serial_outp(up, UART_LCR, save_lcr);
if (up->capabilities != uart_config[up->port.type].flags) {
@@ -2414,6 +2408,21 @@ serial8250_set_termios(struct uart_port *port, struct ktermios *termios,
}
static void
+serial8250_set_ldisc(struct uart_port *port)
+{
+ int line = port->line;
+
+ if (line >= port->state->port.tty->driver->num)
+ return;
+
+ if (port->state->port.tty->ldisc->ops->num == N_PPS) {
+ port->flags |= UPF_HARDPPS_CD;
+ serial8250_enable_ms(port);
+ } else
+ port->flags &= ~UPF_HARDPPS_CD;
+}
+
+static void
serial8250_pm(struct uart_port *port, unsigned int state,
unsigned int oldstate)
{
@@ -2428,7 +2437,7 @@ serial8250_pm(struct uart_port *port, unsigned int state,
static unsigned int serial8250_port_size(struct uart_8250_port *pt)
{
if (pt->port.iotype == UPIO_AU)
- return 0x100000;
+ return 0x1000;
#ifdef CONFIG_ARCH_OMAP
if (is_omap_port(pt))
return 0x16 << pt->port.regshift;
@@ -2585,6 +2594,13 @@ static void serial8250_config_port(struct uart_port *port, int flags)
if (flags & UART_CONFIG_TYPE)
autoconfig(up, probeflags);
+
+#ifdef CONFIG_SERIAL_8250_AU1X00
+ /* if access method is AU, it is a 16550 with a quirk */
+ if (up->port.type == PORT_16550A && up->port.iotype == UPIO_AU)
+ up->bugs |= UART_BUG_NOMSR;
+#endif
+
if (up->port.type != PORT_UNKNOWN && flags & UART_CONFIG_IRQ)
autoconfig_irq(up);
@@ -2627,6 +2643,7 @@ static struct uart_ops serial8250_pops = {
.startup = serial8250_startup,
.shutdown = serial8250_shutdown,
.set_termios = serial8250_set_termios,
+ .set_ldisc = serial8250_set_ldisc,
.pm = serial8250_pm,
.type = serial8250_type,
.release_port = serial8250_release_port,
@@ -2689,6 +2706,15 @@ static void __init serial8250_isa_init_ports(void)
}
}
+static void
+serial8250_init_fixed_type_port(struct uart_8250_port *up, unsigned int type)
+{
+ up->port.type = type;
+ up->port.fifosize = uart_config[type].fifo_size;
+ up->capabilities = uart_config[type].flags;
+ up->tx_loadsz = uart_config[type].tx_loadsz;
+}
+
static void __init
serial8250_register_ports(struct uart_driver *drv, struct device *dev)
{
@@ -2705,6 +2731,10 @@ serial8250_register_ports(struct uart_driver *drv, struct device *dev)
struct uart_8250_port *up = &serial8250_ports[i];
up->port.dev = dev;
+
+ if (up->port.flags & UPF_FIXED_TYPE)
+ serial8250_init_fixed_type_port(up, up->port.type);
+
uart_add_one_port(drv, &up->port);
}
}
@@ -3117,12 +3147,8 @@ int serial8250_register_port(struct uart_port *port)
if (port->dev)
uart->port.dev = port->dev;
- if (port->flags & UPF_FIXED_TYPE) {
- uart->port.type = port->type;
- uart->port.fifosize = uart_config[port->type].fifo_size;
- uart->capabilities = uart_config[port->type].flags;
- uart->tx_loadsz = uart_config[port->type].tx_loadsz;
- }
+ if (port->flags & UPF_FIXED_TYPE)
+ serial8250_init_fixed_type_port(uart, port->type);
set_io_from_upio(&uart->port);
/* Possibly override default I/O functions. */