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Merge tag 'tty-3.3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty

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Pull TTY/serial patches from Greg KH:
 "tty and serial merge for 3.4-rc1

  Here's the big serial and tty merge for the 3.4-rc1 tree.

  There's loads of fixes and reworks in here from Jiri for the tty
  layer, and a number of patches from Alan to help try to wrestle the vt
  layer into a sane model.

  Other than that, lots of driver updates and fixes, and other minor
  stuff, all detailed in the shortlog."

* tag 'tty-3.3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty: (132 commits)
  serial: pxa: add clk_prepare/clk_unprepare calls
  TTY: Wrong unicode value copied in con_set_unimap()
  serial: PL011: clear pending interrupts
  serial: bfin-uart: Don't access tty circular buffer in TX DMA interrupt after it is reset.
  vt: NULL dereference in vt_do_kdsk_ioctl()
  tty: serial: vt8500: fix annotations for probe/remove
  serial: remove back and forth conversions in serial_out_sync
  serial: use serial_port_in/out vs serial_in/out in 8250
  serial: introduce generic port in/out helpers
  serial: reduce number of indirections in 8250 code
  serial: delete useless void casts in 8250.c
  serial: make 8250's serial_in shareable to other drivers.
  serial: delete last unused traces of pausing I/O in 8250
  pch_uart: Add module parameter descriptions
  pch_uart: Use existing default_baud in setup_console
  pch_uart: Add user_uartclk parameter
  pch_uart: Add Fish River Island II uart clock quirks
  pch_uart: Use uartclk instead of base_baud
  mpc5200b/uart: select more tolerant uart prescaler on low baudrates
  tty: moxa: fix bit test in moxa_start()
  ...
This commit is contained in:
Linus Torvalds
2012-03-20 11:24:39 -07:00
parent 71e7ff2578 fb8ebec00b
commit 843ec558f9
117 changed files with 3206 additions and 3138 deletions
Download Patch File Download Diff File Expand all files Collapse all files

57
arch/parisc/kernel/pdc_cons.c
View File

@@ -90,11 +90,13 @@ static int pdc_console_setup(struct console *co, char *options)
#define PDC_CONS_POLL_DELAY (30 * HZ / 1000)
static struct timer_list pdc_console_timer;
static void pdc_console_poll(unsigned long unused);
static DEFINE_TIMER(pdc_console_timer, pdc_console_poll, 0, 0);
static struct tty_port tty_port;
static int pdc_console_tty_open(struct tty_struct *tty, struct file *filp)
{
tty_port_tty_set(&tty_port, tty);
mod_timer(&pdc_console_timer, jiffies + PDC_CONS_POLL_DELAY);
return 0;
@@ -102,8 +104,10 @@ static int pdc_console_tty_open(struct tty_struct *tty, struct file *filp)
static void pdc_console_tty_close(struct tty_struct *tty, struct file *filp)
{
if (!tty->count)
del_timer(&pdc_console_timer);
if (!tty->count) {
del_timer_sync(&pdc_console_timer);
tty_port_tty_set(&tty_port, NULL);
}
}
static int pdc_console_tty_write(struct tty_struct *tty, const unsigned char *buf, int count)
@@ -122,8 +126,6 @@ static int pdc_console_tty_chars_in_buffer(struct tty_struct *tty)
return 0; /* no buffer */
}
static struct tty_driver *pdc_console_tty_driver;
static const struct tty_operations pdc_console_tty_ops = {
.open = pdc_console_tty_open,
.close = pdc_console_tty_close,
@@ -134,10 +136,8 @@ static const struct tty_operations pdc_console_tty_ops = {
static void pdc_console_poll(unsigned long unused)
{
int data, count = 0;
struct tty_struct *tty = pdc_console_tty_driver->ttys[0];
struct tty_struct *tty = tty_port_tty_get(&tty_port);
if (!tty)
return;
@@ -153,15 +153,17 @@ static void pdc_console_poll(unsigned long unused)
if (count)
tty_flip_buffer_push(tty);
if (tty->count && (pdc_cons.flags & CON_ENABLED))
tty_kref_put(tty);
if (pdc_cons.flags & CON_ENABLED)
mod_timer(&pdc_console_timer, jiffies + PDC_CONS_POLL_DELAY);
}
static struct tty_driver *pdc_console_tty_driver;
static int __init pdc_console_tty_driver_init(void)
{
int err;
struct tty_driver *drv;
/* Check if the console driver is still registered.
* It is unregistered if the pdc console was not selected as the
@@ -183,32 +185,29 @@ static int __init pdc_console_tty_driver_init(void)
printk(KERN_INFO "The PDC console driver is still registered, removing CON_BOOT flag\n");
pdc_cons.flags &= ~CON_BOOT;
drv = alloc_tty_driver(1);
tty_port_init(&tty_port);
if (!drv)
pdc_console_tty_driver = alloc_tty_driver(1);
if (!pdc_console_tty_driver)
return -ENOMEM;
drv->driver_name = "pdc_cons";
drv->name = "ttyB";
drv->major = MUX_MAJOR;
drv->minor_start = 0;
drv->type = TTY_DRIVER_TYPE_SYSTEM;
drv->init_termios = tty_std_termios;
drv->flags = TTY_DRIVER_REAL_RAW | TTY_DRIVER_RESET_TERMIOS;
tty_set_operations(drv, &pdc_console_tty_ops);
pdc_console_tty_driver->driver_name = "pdc_cons";
pdc_console_tty_driver->name = "ttyB";
pdc_console_tty_driver->major = MUX_MAJOR;
pdc_console_tty_driver->minor_start = 0;
pdc_console_tty_driver->type = TTY_DRIVER_TYPE_SYSTEM;
pdc_console_tty_driver->init_termios = tty_std_termios;
pdc_console_tty_driver->flags = TTY_DRIVER_REAL_RAW |
TTY_DRIVER_RESET_TERMIOS;
tty_set_operations(pdc_console_tty_driver, &pdc_console_tty_ops);
err = tty_register_driver(drv);
err = tty_register_driver(pdc_console_tty_driver);
if (err) {
printk(KERN_ERR "Unable to register the PDC console TTY driver\n");
return err;
}
pdc_console_tty_driver = drv;
/* No need to initialize the pdc_console_timer if tty isn't allocated */
init_timer(&pdc_console_timer);
pdc_console_timer.function = pdc_console_poll;
return 0;
}