serial: imx: Drop a few unneeded casts

There is no point in casting a struct uart_port to a struct imx_port
just to access the first member of the latter (a struct uart_port).

This introduces no code changes.

Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Link: https://lore.kernel.org/r/20230302115417.1860210-1-u.kleine-koenig@pengutronix.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/tty/serial/imx.c b/drivers/tty/serial/imx.c
index 523f296..84bc0e7 100644 (file)
--- a/drivers/tty/serial/imx.c
+++ b/drivers/tty/serial/imx.c
@@ -1808,9 +1808,7 @@ imx_uart_set_termios(struct uart_port *port, struct ktermios *termios,
 
 static const char *imx_uart_type(struct uart_port *port)
 {
-       struct imx_port *sport = (struct imx_port *)port;
-
-       return sport->port.type == PORT_IMX ? "IMX" : NULL;
+       return port->type == PORT_IMX ? "IMX" : NULL;
 }
 
 /*
@@ -1818,10 +1816,8 @@ static const char *imx_uart_type(struct uart_port *port)
  */
 static void imx_uart_config_port(struct uart_port *port, int flags)
 {
-       struct imx_port *sport = (struct imx_port *)port;
-
        if (flags & UART_CONFIG_TYPE)
-               sport->port.type = PORT_IMX;
+               port->type = PORT_IMX;
 }
 
 /*
@@ -1832,20 +1828,19 @@ static void imx_uart_config_port(struct uart_port *port, int flags)
 static int
 imx_uart_verify_port(struct uart_port *port, struct serial_struct *ser)
 {
-       struct imx_port *sport = (struct imx_port *)port;
        int ret = 0;
 
        if (ser->type != PORT_UNKNOWN && ser->type != PORT_IMX)
                ret = -EINVAL;
-       if (sport->port.irq != ser->irq)
+       if (port->irq != ser->irq)
                ret = -EINVAL;
        if (ser->io_type != UPIO_MEM)
                ret = -EINVAL;
-       if (sport->port.uartclk / 16 != ser->baud_base)
+       if (port->uartclk / 16 != ser->baud_base)
                ret = -EINVAL;
-       if (sport->port.mapbase != (unsigned long)ser->iomem_base)
+       if (port->mapbase != (unsigned long)ser->iomem_base)
                ret = -EINVAL;
-       if (sport->port.iobase != ser->port)
+       if (port->iobase != ser->port)
                ret = -EINVAL;
        if (ser->hub6 != 0)
                ret = -EINVAL;