The OMAP version of the 8250 can actually use 1:1 serial8250_startup(). However it needs to be extended by a wakeup irq which should to be requested & enabled at ->startup() time. Signed-off-by: Sebastian Andrzej Siewior <bigeasy@xxxxxxxxxxxxx> --- drivers/tty/serial/8250/8250_core.c | 11 ++++++++++- include/linux/serial_8250.h | 1 + include/linux/serial_core.h | 1 + 3 files changed, 12 insertions(+), 1 deletion(-) diff --git a/drivers/tty/serial/8250/8250_core.c b/drivers/tty/serial/8250/8250_core.c index 0c90160..f731fff 100644 --- a/drivers/tty/serial/8250/8250_core.c +++ b/drivers/tty/serial/8250/8250_core.c @@ -1939,7 +1939,7 @@ static void serial8250_put_poll_char(struct uart_port *port, #endif /* CONFIG_CONSOLE_POLL */ -static int serial8250_startup(struct uart_port *port) +int serial8250_do_startup(struct uart_port *port) { struct uart_8250_port *up = container_of(port, struct uart_8250_port, port); @@ -2191,6 +2191,15 @@ static int serial8250_startup(struct uart_port *port) return 0; } +EXPORT_SYMBOL_GPL(serial8250_do_startup); + +static int serial8250_startup(struct uart_port *port) +{ + if (port->startup) + return port->startup(port); + else + return serial8250_do_startup(port); +} static void serial8250_shutdown(struct uart_port *port) { diff --git a/include/linux/serial_8250.h b/include/linux/serial_8250.h index af47a8a..9afed1e 100644 --- a/include/linux/serial_8250.h +++ b/include/linux/serial_8250.h @@ -114,6 +114,7 @@ extern void serial8250_early_out(struct uart_port *port, int offset, int value); extern int setup_early_serial8250_console(char *cmdline); extern void serial8250_do_set_termios(struct uart_port *port, struct ktermios *termios, struct ktermios *old); +extern int serial8250_do_startup(struct uart_port *port); extern void serial8250_do_pm(struct uart_port *port, unsigned int state, unsigned int oldstate); extern int fsl8250_handle_irq(struct uart_port *port); diff --git a/include/linux/serial_core.h b/include/linux/serial_core.h index 5bbb809..77acd73 100644 --- a/include/linux/serial_core.h +++ b/include/linux/serial_core.h @@ -122,6 +122,7 @@ struct uart_port { void (*set_termios)(struct uart_port *, struct ktermios *new, struct ktermios *old); + int (*startup)(struct uart_port *port); int (*handle_irq)(struct uart_port *); void (*pm)(struct uart_port *, unsigned int state, unsigned int old); -- 2.0.0 -- To unsubscribe from this list: send the line "unsubscribe linux-omap" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html