Merge branch 'omap-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind...

[platform/adaptation/renesas_rcar/renesas_kernel.git] / include / linux / serial_core.h

diff --git a/include/linux/serial_core.h b/include/linux/serial_core.h
index 295e898..212eb4c 100644 (file)
--- a/include/linux/serial_core.h
+++ b/include/linux/serial_core.h
@@ -292,6 +292,8 @@ 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 */
@@ -414,6 +416,14 @@ 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.
  */