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| author | Sebastian Andrzej Siewior <bigeasy@linutronix.de> | 2014-09-10 23:29:56 +0400 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2014-09-26 20:01:56 +0400 |
| commit | 234abab143aef82c0ef1f2de409c0db96b666f3c (patch) | |
| tree | 45580c4dd61a49fb028a1b5ecf3fa637efe34ee7 /include/linux/serial_core.h | |
| parent | cc952e7017fa2e8871ee6a94f2c606ff5911f61e (diff) | |
| download | linux-234abab143aef82c0ef1f2de409c0db96b666f3c.tar.xz | |
tty: serial: 8250_core: allow to set ->throttle / ->unthrottle callbacks
The OMAP UART provides support for HW assisted flow control. What is
missing is the support to throttle / unthrottle callbacks which are used
by the omap-serial driver at the moment.
This patch adds the callbacks. It should be safe to add them since they
are only invoked from the serial_core (uart_throttle()) if the feature
flags are set.
Reviewed-by: Tony Lindgren <tony@atomide.com>
Tested-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'include/linux/serial_core.h')
| -rw-r--r-- | include/linux/serial_core.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/include/linux/serial_core.h b/include/linux/serial_core.h index 204c452a7567..21c2e05c1bc3 100644 --- a/include/linux/serial_core.h +++ b/include/linux/serial_core.h @@ -125,6 +125,8 @@ struct uart_port { struct ktermios *old); int (*startup)(struct uart_port *port); void (*shutdown)(struct uart_port *port); + void (*throttle)(struct uart_port *port); + void (*unthrottle)(struct uart_port *port); int (*handle_irq)(struct uart_port *); void (*pm)(struct uart_port *, unsigned int state, unsigned int old); |