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author | Linus Torvalds <torvalds@linux-foundation.org> | 2010-10-22 19:59:04 -0700 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2010-10-22 19:59:04 -0700 |
commit | 73ecf3a6e3f0206bf56a0fefe3b3eda042fb7034 (patch) | |
tree | 866f0ebb2b148479e93b5ac955097b1cc94ceb4e /include/linux/serial_core.h | |
parent | Merge git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core-2.6 (diff) | |
parent | serial8250: ratelimit "too much work" error (diff) | |
download | linux-dev-73ecf3a6e3f0206bf56a0fefe3b3eda042fb7034.tar.xz linux-dev-73ecf3a6e3f0206bf56a0fefe3b3eda042fb7034.zip |
Merge git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty-2.6: (49 commits)
serial8250: ratelimit "too much work" error
serial: bfin_sport_uart: speed up sport RX sample rate to be 3% faster
serial: abstraction for 8250 legacy ports
serial/imx: check that the buffer is non-empty before sending it out
serial: mfd: add more baud rates support
jsm: Remove the uart port on errors
Alchemy: Add UART PM methods.
8250: allow platforms to override PM hook.
altera_uart: Don't use plain integer as NULL pointer
altera_uart: Fix missing prototype for registering an early console
altera_uart: Fixup type usage of port flags
altera_uart: Make it possible to use Altera UART and 8250 ports together
altera_uart: Add support for different address strides
altera_uart: Add support for getting mapbase and IRQ from resources
altera_uart: Add support for polling mode (IRQ-less)
serial: Factor out uart_poll_timeout() from 8250 driver
serial: mark the 8250 driver as maintained
serial: 8250: Don't delay after transmitter is ready.
tty: MAINTAINERS: add drivers/serial/jsm/ as maintained driver
vcs: invoke the vt update callback when /dev/vcs* is written to
...
Diffstat (limited to 'include/linux/serial_core.h')
-rw-r--r-- | include/linux/serial_core.h | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/include/linux/serial_core.h b/include/linux/serial_core.h index 563e23400913..99e5994e6f84 100644 --- a/include/linux/serial_core.h +++ b/include/linux/serial_core.h @@ -289,6 +289,8 @@ struct uart_port { void (*set_termios)(struct uart_port *, struct ktermios *new, struct ktermios *old); + void (*pm)(struct uart_port *, unsigned int state, + unsigned int old); unsigned int irq; /* irq number */ unsigned long irqflags; /* irq flags */ unsigned int uartclk; /* base uart clock */ @@ -411,6 +413,14 @@ unsigned int uart_get_baud_rate(struct uart_port *port, struct ktermios *termios unsigned int max); unsigned int uart_get_divisor(struct uart_port *port, unsigned int baud); +/* Base timer interval for polling */ +static inline int uart_poll_timeout(struct uart_port *port) +{ + int timeout = port->timeout; + + return timeout > 6 ? (timeout / 2 - 2) : 1; +} + /* * Console helpers. */ |