serial: 8250: Expose set_ldisc function
Expose set_ldisc() function so that it can be overridden with a platform specific implementation. Signed-off-by: Ed Blake <ed.blake@imgtec.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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@ -830,6 +830,7 @@ static int serial8250_probe(struct platform_device *dev)
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uart.port.handle_irq = p->handle_irq;
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uart.port.handle_break = p->handle_break;
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uart.port.set_termios = p->set_termios;
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uart.port.set_ldisc = p->set_ldisc;
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uart.port.get_mctrl = p->get_mctrl;
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uart.port.pm = p->pm;
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uart.port.dev = &dev->dev;
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@ -1023,6 +1024,8 @@ int serial8250_register_8250_port(struct uart_8250_port *up)
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/* Possibly override set_termios call */
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if (up->port.set_termios)
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uart->port.set_termios = up->port.set_termios;
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if (up->port.set_ldisc)
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uart->port.set_ldisc = up->port.set_ldisc;
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if (up->port.get_mctrl)
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uart->port.get_mctrl = up->port.get_mctrl;
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if (up->port.set_mctrl)
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@ -2693,8 +2693,7 @@ serial8250_set_termios(struct uart_port *port, struct ktermios *termios,
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serial8250_do_set_termios(port, termios, old);
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}
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static void
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serial8250_set_ldisc(struct uart_port *port, struct ktermios *termios)
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void serial8250_do_set_ldisc(struct uart_port *port, struct ktermios *termios)
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{
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if (termios->c_line == N_PPS) {
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port->flags |= UPF_HARDPPS_CD;
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@ -2710,7 +2709,16 @@ serial8250_set_ldisc(struct uart_port *port, struct ktermios *termios)
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}
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}
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}
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EXPORT_SYMBOL_GPL(serial8250_do_set_ldisc);
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static void
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serial8250_set_ldisc(struct uart_port *port, struct ktermios *termios)
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{
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if (port->set_ldisc)
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port->set_ldisc(port, termios);
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else
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serial8250_do_set_ldisc(port, termios);
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}
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void serial8250_do_pm(struct uart_port *port, unsigned int state,
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unsigned int oldstate)
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@ -36,6 +36,8 @@ struct plat_serial8250_port {
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void (*set_termios)(struct uart_port *,
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struct ktermios *new,
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struct ktermios *old);
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void (*set_ldisc)(struct uart_port *,
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struct ktermios *);
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unsigned int (*get_mctrl)(struct uart_port *);
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int (*handle_irq)(struct uart_port *);
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void (*pm)(struct uart_port *, unsigned int state,
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@ -149,6 +151,8 @@ extern int early_serial8250_setup(struct earlycon_device *device,
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const char *options);
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extern void serial8250_do_set_termios(struct uart_port *port,
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struct ktermios *termios, struct ktermios *old);
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extern void serial8250_do_set_ldisc(struct uart_port *port,
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struct ktermios *termios);
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extern unsigned int serial8250_do_get_mctrl(struct uart_port *port);
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extern int serial8250_do_startup(struct uart_port *port);
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extern void serial8250_do_shutdown(struct uart_port *port);
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@ -123,6 +123,8 @@ struct uart_port {
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void (*set_termios)(struct uart_port *,
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struct ktermios *new,
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struct ktermios *old);
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void (*set_ldisc)(struct uart_port *,
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struct ktermios *);
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unsigned int (*get_mctrl)(struct uart_port *);
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void (*set_mctrl)(struct uart_port *, unsigned int);
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int (*startup)(struct uart_port *port);
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