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authorLinus Torvalds <torvalds@g5.osdl.org>2006-07-13 16:38:02 -0700
committerLinus Torvalds <torvalds@g5.osdl.org>2006-07-13 16:38:02 -0700
commit7b69a4c360e8787877ebf5e42609b8bab13afa6a (patch)
tree3eaaae28ed398396f0f3f134e53dd8a730574781 /drivers/serial
parenta23f4636c9ae7f1f15c448080f1552864b404136 (diff)
parent68aa2c0d4a36b43ea9c6d77134c94b4501fd2eb4 (diff)
Merge master.kernel.org:/home/rmk/linux-2.6-serial
* master.kernel.org:/home/rmk/linux-2.6-serial: [SERIAL] 8250: sysrq deadlock fix [SERIAL] 8250: add tsi108 serial support [SERIAL] IP22: fix serial console hangs [SERIAL] dz: Fix compilation error
Diffstat (limited to 'drivers/serial')
-rw-r--r--drivers/serial/8250.c25
-rw-r--r--drivers/serial/dz.c2
-rw-r--r--drivers/serial/ip22zilog.c3
-rw-r--r--drivers/serial/serial_core.c1
4 files changed, 24 insertions, 7 deletions
diff --git a/drivers/serial/8250.c b/drivers/serial/8250.c
index 0995430e4cf..0ae9ced00ed 100644
--- a/drivers/serial/8250.c
+++ b/drivers/serial/8250.c
@@ -299,6 +299,7 @@ static inline int map_8250_out_reg(struct uart_8250_port *up, int offset)
static unsigned int serial_in(struct uart_8250_port *up, int offset)
{
+ unsigned int tmp;
offset = map_8250_in_reg(up, offset) << up->port.regshift;
switch (up->port.iotype) {
@@ -317,6 +318,13 @@ static unsigned int serial_in(struct uart_8250_port *up, int offset)
return __raw_readl(up->port.membase + offset);
#endif
+ case UPIO_TSI:
+ if (offset == UART_IIR) {
+ tmp = readl((u32 *)(up->port.membase + UART_RX));
+ return (cpu_to_le32(tmp) >> 8) & 0xff;
+ } else
+ return readb(up->port.membase + offset);
+
default:
return inb(up->port.iobase + offset);
}
@@ -346,6 +354,10 @@ serial_out(struct uart_8250_port *up, int offset, int value)
__raw_writel(value, up->port.membase + offset);
break;
#endif
+ case UPIO_TSI:
+ if (!((offset == UART_IER) && (value & UART_IER_UUE)))
+ writeb(value, up->port.membase + offset);
+ break;
default:
outb(value, up->port.iobase + offset);
@@ -2240,10 +2252,14 @@ serial8250_console_write(struct console *co, const char *s, unsigned int count)
touch_nmi_watchdog();
- if (oops_in_progress) {
- locked = spin_trylock_irqsave(&up->port.lock, flags);
+ local_irq_save(flags);
+ if (up->port.sysrq) {
+ /* serial8250_handle_port() already took the lock */
+ locked = 0;
+ } else if (oops_in_progress) {
+ locked = spin_trylock(&up->port.lock);
} else
- spin_lock_irqsave(&up->port.lock, flags);
+ spin_lock(&up->port.lock);
/*
* First save the IER then disable the interrupts
@@ -2265,7 +2281,8 @@ serial8250_console_write(struct console *co, const char *s, unsigned int count)
serial_out(up, UART_IER, ier);
if (locked)
- spin_unlock_irqrestore(&up->port.lock, flags);
+ spin_unlock(&up->port.lock);
+ local_irq_restore(flags);
}
static int serial8250_console_setup(struct console *co, char *options)
diff --git a/drivers/serial/dz.c b/drivers/serial/dz.c
index d119c8296a7..8a98aae80e2 100644
--- a/drivers/serial/dz.c
+++ b/drivers/serial/dz.c
@@ -673,7 +673,7 @@ static void dz_reset(struct dz_port *dport)
}
#ifdef CONFIG_SERIAL_DZ_CONSOLE
-static void dz_console_putchar(struct uart_port *port, int ch)
+static void dz_console_putchar(struct uart_port *uport, int ch)
{
struct dz_port *dport = (struct dz_port *)uport;
unsigned long flags;
diff --git a/drivers/serial/ip22zilog.c b/drivers/serial/ip22zilog.c
index 342042889f6..5ff269fb604 100644
--- a/drivers/serial/ip22zilog.c
+++ b/drivers/serial/ip22zilog.c
@@ -1143,9 +1143,8 @@ static void __init ip22zilog_prepare(void)
up[(chip * 2) + 1].port.fifosize = 1;
up[(chip * 2) + 1].port.ops = &ip22zilog_pops;
up[(chip * 2) + 1].port.type = PORT_IP22ZILOG;
- up[(chip * 2) + 1].port.flags |= IP22ZILOG_FLAG_IS_CHANNEL_A;
up[(chip * 2) + 1].port.line = (chip * 2) + 1;
- up[(chip * 2) + 1].flags = 0;
+ up[(chip * 2) + 1].flags |= IP22ZILOG_FLAG_IS_CHANNEL_A;
}
}
diff --git a/drivers/serial/serial_core.c b/drivers/serial/serial_core.c
index d5f636fbf29..80ef7d48275 100644
--- a/drivers/serial/serial_core.c
+++ b/drivers/serial/serial_core.c
@@ -2036,6 +2036,7 @@ uart_report_port(struct uart_driver *drv, struct uart_port *port)
case UPIO_MEM:
case UPIO_MEM32:
case UPIO_AU:
+ case UPIO_TSI:
snprintf(address, sizeof(address),
"MMIO 0x%lx", port->mapbase);
break;