| Message ID | 20170718105948.21986-5-u.kleine-koenig@pengutronix.de |
|---|---|
| State | New |
| Headers | show |
On Tue, Jul 18, 2017 at 12:59:43PM +0200, Uwe Kleine-König wrote: > From: Sascha Hauer <s.hauer@pengutronix.de> > > We just got a common helper for parsing the rs485 specific > device tree properties. Use it and drop the open coded parser. > > Note that there is a small difference between the removed and the now > used implementation: The former cleared flags to 0 if rs485-rts-delay > was given, the common helper clears SER_RS485_RX_DURING_TX and > SER_RS485_ENABLED only but always which makes more sense. > > Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de> > [ukleinek: point out semantic change in commit log] > Acked-by: Nicolas Ferre <nicolas.ferre@microchip.com> > Acked-by: Richard Genoud <richard.genoud@gmail.com> > Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> > --- > drivers/tty/serial/atmel_serial.c | 25 +------------------------ > 1 file changed, 1 insertion(+), 24 deletions(-) > > diff --git a/drivers/tty/serial/atmel_serial.c b/drivers/tty/serial/atmel_serial.c > index 7551cab438ff..04e55f010894 100644 > --- a/drivers/tty/serial/atmel_serial.c > +++ b/drivers/tty/serial/atmel_serial.c > @@ -1667,29 +1667,6 @@ static void atmel_init_property(struct atmel_uart_port *atmel_port, > } > } > > -static void atmel_init_rs485(struct uart_port *port, > - struct platform_device *pdev) > -{ > - struct device_node *np = pdev->dev.of_node; > - > - struct serial_rs485 *rs485conf = &port->rs485; > - u32 rs485_delay[2]; > - > - /* rs485 properties */ > - if (of_property_read_u32_array(np, "rs485-rts-delay", > - rs485_delay, 2) == 0) { > - rs485conf->delay_rts_before_send = rs485_delay[0]; > - rs485conf->delay_rts_after_send = rs485_delay[1]; > - rs485conf->flags = 0; > - } > - > - if (of_get_property(np, "rs485-rx-during-tx", NULL)) > - rs485conf->flags |= SER_RS485_RX_DURING_TX; > - > - if (of_get_property(np, "linux,rs485-enabled-at-boot-time", NULL)) > - rs485conf->flags |= SER_RS485_ENABLED; > -} > - > static void atmel_set_ops(struct uart_port *port) > { > struct atmel_uart_port *atmel_port = to_atmel_uart_port(port); > @@ -2373,7 +2350,7 @@ static int atmel_init_port(struct atmel_uart_port *atmel_port, > atmel_init_property(atmel_port, pdev); > atmel_set_ops(port); > > - atmel_init_rs485(port, pdev); > + of_get_rs485_mode(pdev->dev.of_node, &port->rs485); No error checking?
diff --git a/drivers/tty/serial/atmel_serial.c b/drivers/tty/serial/atmel_serial.c index 7551cab438ff..04e55f010894 100644 --- a/drivers/tty/serial/atmel_serial.c +++ b/drivers/tty/serial/atmel_serial.c @@ -1667,29 +1667,6 @@ static void atmel_init_property(struct atmel_uart_port *atmel_port, } } -static void atmel_init_rs485(struct uart_port *port, - struct platform_device *pdev) -{ - struct device_node *np = pdev->dev.of_node; - - struct serial_rs485 *rs485conf = &port->rs485; - u32 rs485_delay[2]; - - /* rs485 properties */ - if (of_property_read_u32_array(np, "rs485-rts-delay", - rs485_delay, 2) == 0) { - rs485conf->delay_rts_before_send = rs485_delay[0]; - rs485conf->delay_rts_after_send = rs485_delay[1]; - rs485conf->flags = 0; - } - - if (of_get_property(np, "rs485-rx-during-tx", NULL)) - rs485conf->flags |= SER_RS485_RX_DURING_TX; - - if (of_get_property(np, "linux,rs485-enabled-at-boot-time", NULL)) - rs485conf->flags |= SER_RS485_ENABLED; -} - static void atmel_set_ops(struct uart_port *port) { struct atmel_uart_port *atmel_port = to_atmel_uart_port(port); @@ -2373,7 +2350,7 @@ static int atmel_init_port(struct atmel_uart_port *atmel_port, atmel_init_property(atmel_port, pdev); atmel_set_ops(port); - atmel_init_rs485(port, pdev); + of_get_rs485_mode(pdev->dev.of_node, &port->rs485); port->iotype = UPIO_MEM; port->flags = UPF_BOOT_AUTOCONF | UPF_IOREMAP;