diff options
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/serial/8250.c | 27 |
1 files changed, 16 insertions, 11 deletions
diff --git a/drivers/serial/8250.c b/drivers/serial/8250.c index b586406f04ca..6994afb5571a 100644 --- a/drivers/serial/8250.c +++ b/drivers/serial/8250.c @@ -154,12 +154,6 @@ struct uart_8250_port { unsigned char lsr_saved_flags; #define MSR_SAVE_FLAGS UART_MSR_ANY_DELTA unsigned char msr_saved_flags; - - /* - * We provide a per-port pm hook. - */ - void (*pm)(struct uart_port *port, - unsigned int state, unsigned int old); }; struct irq_info { @@ -2436,16 +2430,24 @@ serial8250_set_ldisc(struct uart_port *port, int new) port->flags &= ~UPF_HARDPPS_CD; } -static void -serial8250_pm(struct uart_port *port, unsigned int state, - unsigned int oldstate) + +void serial8250_do_pm(struct uart_port *port, unsigned int state, + unsigned int oldstate) { struct uart_8250_port *p = (struct uart_8250_port *)port; serial8250_set_sleep(p, state != 0); +} +EXPORT_SYMBOL(serial8250_do_pm); - if (p->pm) - p->pm(port, state, oldstate); +static void +serial8250_pm(struct uart_port *port, unsigned int state, + unsigned int oldstate) +{ + if (port->pm) + port->pm(port, state, oldstate); + else + serial8250_do_pm(port, state, oldstate); } static unsigned int serial8250_port_size(struct uart_8250_port *pt) @@ -3006,6 +3008,7 @@ static int __devinit serial8250_probe(struct platform_device *dev) port.serial_in = p->serial_in; port.serial_out = p->serial_out; port.set_termios = p->set_termios; + port.pm = p->pm; port.dev = &dev->dev; port.irqflags |= irqflag; ret = serial8250_register_port(&port); @@ -3172,6 +3175,8 @@ int serial8250_register_port(struct uart_port *port) /* Possibly override set_termios call */ if (port->set_termios) uart->port.set_termios = port->set_termios; + if (port->pm) + uart->port.pm = port->pm; ret = uart_add_one_port(&serial8250_reg, &uart->port); if (ret == 0) |