serial: liteuart: remove unused uart_ops stubs

Remove stub uart_ops methods that are not called unconditionally
from serial_core.

Signed-off-by: Gabriel Somlo <gsomlo@gmail.com>
Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Reviewed-by: Geert Uytterhoeven <geert@linux-m68k.org>
Reviewed-by: Jiri Slaby <jirislaby@kernel.org>
Link: https://lore.kernel.org/r/20221123130500.1030189-4-gsomlo@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/tty/serial/liteuart.c b/drivers/tty/serial/liteuart.c
index 18c1eb3..989a4f8 100644 (file)
--- a/drivers/tty/serial/liteuart.c
+++ b/drivers/tty/serial/liteuart.c
@@ -154,11 +154,6 @@ static void liteuart_stop_rx(struct uart_port *port)
        del_timer(&uart->timer);
 }
 
-static void liteuart_break_ctl(struct uart_port *port, int break_state)
-{
-       /* LiteUART doesn't support sending break signal */
-}
-
 static int liteuart_startup(struct uart_port *port)
 {
        struct liteuart_port *uart = to_liteuart_port(port);
@@ -197,15 +192,6 @@ static const char *liteuart_type(struct uart_port *port)
        return "liteuart";
 }
 
-static void liteuart_release_port(struct uart_port *port)
-{
-}
-
-static int liteuart_request_port(struct uart_port *port)
-{
-       return 0;
-}
-
 static void liteuart_config_port(struct uart_port *port, int flags)
 {
        /*
@@ -232,13 +218,10 @@ static const struct uart_ops liteuart_ops = {
        .stop_tx        = liteuart_stop_tx,
        .start_tx       = liteuart_start_tx,
        .stop_rx        = liteuart_stop_rx,
-       .break_ctl      = liteuart_break_ctl,
        .startup        = liteuart_startup,
        .shutdown       = liteuart_shutdown,
        .set_termios    = liteuart_set_termios,
        .type           = liteuart_type,
-       .release_port   = liteuart_release_port,
-       .request_port   = liteuart_request_port,
        .config_port    = liteuart_config_port,
        .verify_port    = liteuart_verify_port,
 };