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Merge branch 'devel' of master.kernel.org:/home/rmk/linux-2.6-serial

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* 'devel' of master.kernel.org:/home/rmk/linux-2.6-serial: (21 commits)
  [SERIAL] add PNP IDs for FPI based touchscreens
  [SERIAL] Magic SysRq SAK does nothing on serial consoles
  [SERIAL] tickle NMI watchdog on serial output.
  [SERIAL] Fix oops when removing suspended serial port
  [SERIAL] Fix resume handling bug
  [SERIAL] Remove wrong asm/serial.h inclusions
  [SERIAL] CONFIG_PM=n slim: drivers/serial/8250_pci.c
  [SERIAL] OMAP1510 serial fix for 115200 baud
  [SERIAL] returning proper error from serial core driver
  [SERIAL] Make uart_line_info() correctly tell MMIO from I/O port
  [SERIAL] suspend/resume handlers don't have level arg anymore
  [SERIAL] 8250 resourse management fixes
  [SERIAL] serial_cs: Add quirk for brainboxes 2-port RS232 card
  [SERIAL] serial_cs: handle Nokia multi->single port bodge via config quirk
  [SERIAL] serial_cs: add configuration quirk
  [SERIAL] serial_cs: Convert Oxford 950 / Possio GCC wakeup quirk
  [SERIAL] serial_cs: convert IBM post-init handling to a quirk
  [SERIAL] serial_cs: allow wildcarded quirks
  [SERIAL] serial_cs: convert multi-port table to quirk table
  [SERIAL] serial_cs: Use clean up multiport card detection
  ...
This commit is contained in:
Linus Torvalds
2006-10-03 09:13:29 -07:00
parent 6ebfc0e20b 75fde2eddc
commit 6f3a28f7d1
14 changed files with 273 additions and 111 deletions
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18
drivers/serial/serial_core.c
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@ -792,6 +792,7 @@ static int uart_set_info(struct uart_state *state,
* We failed anyway.
*/
retval = -EBUSY;
goto exit; // Added to return the correct error -Ram Gupta
}
}
@ -1662,16 +1663,16 @@ static int uart_line_info(char *buf, struct uart_driver *drv, int i)
struct uart_port *port = state->port;
char stat_buf[32];
unsigned int status;
int ret;
int mmio, ret;
if (!port)
return 0;
mmio = port->iotype >= UPIO_MEM;
ret = sprintf(buf, "%d: uart:%s %s%08lX irq:%d",
port->line, uart_type(port),
port->iotype == UPIO_MEM ? "mmio:0x" : "port:",
port->iotype == UPIO_MEM ? port->mapbase :
(unsigned long) port->iobase,
mmio ? "mmio:0x" : "port:",
mmio ? port->mapbase : (unsigned long) port->iobase,
port->irq);
if (port->type == PORT_UNKNOWN) {
@ -1939,6 +1940,9 @@ int uart_suspend_port(struct uart_driver *drv, struct uart_port *port)
if (state->info && state->info->flags & UIF_INITIALIZED) {
const struct uart_ops *ops = port->ops;
state->info->flags = (state->info->flags & ~UIF_INITIALIZED)
| UIF_SUSPENDED;
spin_lock_irq(&port->lock);
ops->stop_tx(port);
ops->set_mctrl(port, 0);
@ -2005,7 +2009,7 @@ int uart_resume_port(struct uart_driver *drv, struct uart_port *port)
console_start(port->cons);
}
if (state->info && state->info->flags & UIF_INITIALIZED) {
if (state->info && state->info->flags & UIF_SUSPENDED) {
const struct uart_ops *ops = port->ops;
int ret;
@ -2017,15 +2021,17 @@ int uart_resume_port(struct uart_driver *drv, struct uart_port *port)
ops->set_mctrl(port, port->mctrl);
ops->start_tx(port);
spin_unlock_irq(&port->lock);
state->info->flags |= UIF_INITIALIZED;
} else {
/*
* Failed to resume - maybe hardware went away?
* Clear the "initialized" flag so we won't try
* to call the low level drivers shutdown method.
*/
state->info->flags &= ~UIF_INITIALIZED;
uart_shutdown(state);
}
state->info->flags &= ~UIF_SUSPENDED;
}
mutex_unlock(&state->mutex);