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serial: omap-serial: Use common rs485 device tree parsing function 

We just got a common helper for parsing the rs485 specific
device tree properties. Use it and drop the open coded parser.

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Sascha Hauer 2017-09-13 10:18:30 +02:00 committed by Greg Kroah-Hartman
parent dde18d53d7
commit af2f927676
1 changed files with 1 additions and 12 deletions
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13
drivers/tty/serial/omap-serial.c
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@ -1606,7 +1606,6 @@ static int serial_omap_probe_rs485(struct uart_omap_port *up,
struct device_node *np)
{
struct serial_rs485 *rs485conf = &up->port.rs485;
u32 rs485_delay[2];
enum of_gpio_flags flags;
int ret;
@ -1637,17 +1636,7 @@ static int serial_omap_probe_rs485(struct uart_omap_port *up,
up->rts_gpio = -EINVAL;
}
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];
}
if (of_property_read_bool(np, "rs485-rx-during-tx"))
rs485conf->flags |= SER_RS485_RX_DURING_TX;
if (of_property_read_bool(np, "linux,rs485-enabled-at-boot-time"))
rs485conf->flags |= SER_RS485_ENABLED;
of_get_rs485_mode(np, rs485conf);
return 0;
}