summaryrefslogtreecommitdiff
path: root/drivers/serial/8250.c
diff options
context:
space:
mode:
authorRussell King <rmk@dyn-67.arm.linux.org.uk>2008-10-16 02:16:07 +0400
committerRussell King <rmk+kernel@arm.linux.org.uk>2008-10-16 02:16:07 +0400
commit2502991560dc8244dbe10e48473d85722c1e2ec1 (patch)
tree63b1f3be2ed56ff06f1e8db709e4ce85d69c3add /drivers/serial/8250.c
parent7e69a8c4d06b7ecb874f571e82b715a9f79bc3c4 (diff)
parenta9ff8f6462635c8d9f8d64b7b10ddcea8404d77b (diff)
downloadlinux-2502991560dc8244dbe10e48473d85722c1e2ec1.tar.xz
Merge branch 'fixes' into for-linus
Conflicts: arch/arm/mach-versatile/core.c
Diffstat (limited to 'drivers/serial/8250.c')
-rw-r--r--drivers/serial/8250.c52
1 files changed, 36 insertions, 16 deletions
diff --git a/drivers/serial/8250.c b/drivers/serial/8250.c
index 8058533f8418..ec39203b879d 100644
--- a/drivers/serial/8250.c
+++ b/drivers/serial/8250.c
@@ -44,6 +44,10 @@
#include "8250.h"
+#ifdef CONFIG_SPARC
+#include "suncore.h"
+#endif
+
/*
* Configuration:
* share_irqs - whether we pass IRQF_SHARED to request_irq(). This option
@@ -53,6 +57,13 @@ static unsigned int share_irqs = SERIAL8250_SHARE_IRQS;
static unsigned int nr_uarts = CONFIG_SERIAL_8250_RUNTIME_UARTS;
+static struct uart_driver serial8250_reg;
+
+static int serial_index(struct uart_port *port)
+{
+ return (serial8250_reg.minor - 64) + port->line;
+}
+
/*
* Debugging.
*/
@@ -536,7 +547,7 @@ static unsigned int serial_icr_read(struct uart_8250_port *up, int offset)
/*
* FIFO support.
*/
-static inline void serial8250_clear_fifos(struct uart_8250_port *p)
+static void serial8250_clear_fifos(struct uart_8250_port *p)
{
if (p->capabilities & UART_CAP_FIFO) {
serial_outp(p, UART_FCR, UART_FCR_ENABLE_FIFO);
@@ -551,7 +562,7 @@ static inline void serial8250_clear_fifos(struct uart_8250_port *p)
* capability" bit enabled. Note that on XR16C850s, we need to
* reset LCR to write to IER.
*/
-static inline void serial8250_set_sleep(struct uart_8250_port *p, int sleep)
+static void serial8250_set_sleep(struct uart_8250_port *p, int sleep)
{
if (p->capabilities & UART_CAP_SLEEP) {
if (p->capabilities & UART_CAP_EFR) {
@@ -993,7 +1004,7 @@ static void autoconfig(struct uart_8250_port *up, unsigned int probeflags)
return;
DEBUG_AUTOCONF("ttyS%d: autoconf (0x%04x, 0x%p): ",
- up->port.line, up->port.iobase, up->port.membase);
+ serial_index(&up->port), up->port.iobase, up->port.membase);
/*
* We really do need global IRQs disabled here - we're going to
@@ -1128,8 +1139,8 @@ static void autoconfig(struct uart_8250_port *up, unsigned int probeflags)
if (up->capabilities != uart_config[up->port.type].flags) {
printk(KERN_WARNING
"ttyS%d: detected caps %08x should be %08x\n",
- up->port.line, up->capabilities,
- uart_config[up->port.type].flags);
+ serial_index(&up->port), up->capabilities,
+ uart_config[up->port.type].flags);
}
up->port.fifosize = uart_config[up->port.type].fifo_size;
@@ -1424,8 +1435,7 @@ static unsigned int check_modem_status(struct uart_8250_port *up)
/*
* This handles the interrupt from one port.
*/
-static inline void
-serial8250_handle_port(struct uart_8250_port *up)
+static void serial8250_handle_port(struct uart_8250_port *up)
{
unsigned int status;
unsigned long flags;
@@ -1719,7 +1729,7 @@ static void serial8250_break_ctl(struct uart_port *port, int break_state)
/*
* Wait for transmitter & holding register to empty
*/
-static inline void wait_for_xmitr(struct uart_8250_port *up, int bits)
+static void wait_for_xmitr(struct uart_8250_port *up, int bits)
{
unsigned int status, tmout = 10000;
@@ -1854,7 +1864,8 @@ static int serial8250_startup(struct uart_port *port)
*/
if (!(up->port.flags & UPF_BUGGY_UART) &&
(serial_inp(up, UART_LSR) == 0xff)) {
- printk("ttyS%d: LSR safety check engaged!\n", up->port.line);
+ printk(KERN_INFO "ttyS%d: LSR safety check engaged!\n",
+ serial_index(&up->port));
return -ENODEV;
}
@@ -1909,7 +1920,8 @@ static int serial8250_startup(struct uart_port *port)
*/
if (!(iir1 & UART_IIR_NO_INT) && (iir & UART_IIR_NO_INT)) {
up->bugs |= UART_BUG_THRE;
- pr_debug("ttyS%d - using backup timer\n", port->line);
+ pr_debug("ttyS%d - using backup timer\n",
+ serial_index(port));
}
}
@@ -1969,7 +1981,7 @@ static int serial8250_startup(struct uart_port *port)
if (!(up->bugs & UART_BUG_TXEN)) {
up->bugs |= UART_BUG_TXEN;
pr_debug("ttyS%d - enabling bad tx status workarounds\n",
- port->line);
+ serial_index(port));
}
} else {
up->bugs &= ~UART_BUG_TXEN;
@@ -2637,7 +2649,6 @@ static int serial8250_console_early_setup(void)
return serial8250_find_port_for_earlycon();
}
-static struct uart_driver serial8250_reg;
static struct console serial8250_console = {
.name = "ttyS",
.write = serial8250_console_write,
@@ -2684,7 +2695,6 @@ static struct uart_driver serial8250_reg = {
.dev_name = "ttyS",
.major = TTY_MAJOR,
.minor = 64,
- .nr = UART_NR,
.cons = SERIAL8250_CONSOLE,
};
@@ -2966,10 +2976,12 @@ static int __init serial8250_init(void)
"%d ports, IRQ sharing %sabled\n", nr_uarts,
share_irqs ? "en" : "dis");
- for (i = 0; i < NR_IRQS; i++)
- spin_lock_init(&irq_lists[i].lock);
-
+#ifdef CONFIG_SPARC
+ ret = sunserial_register_minors(&serial8250_reg, UART_NR);
+#else
+ serial8250_reg.nr = UART_NR;
ret = uart_register_driver(&serial8250_reg);
+#endif
if (ret)
goto out;
@@ -2994,7 +3006,11 @@ static int __init serial8250_init(void)
put_dev:
platform_device_put(serial8250_isa_devs);
unreg_uart_drv:
+#ifdef CONFIG_SPARC
+ sunserial_unregister_minors(&serial8250_reg, UART_NR);
+#else
uart_unregister_driver(&serial8250_reg);
+#endif
out:
return ret;
}
@@ -3013,7 +3029,11 @@ static void __exit serial8250_exit(void)
platform_driver_unregister(&serial8250_isa_driver);
platform_device_unregister(isa_dev);
+#ifdef CONFIG_SPARC
+ sunserial_unregister_minors(&serial8250_reg, UART_NR);
+#else
uart_unregister_driver(&serial8250_reg);
+#endif
}
module_init(serial8250_init);