From: Sascha Hauer <s.hauer@xxxxxxxxxxxxxx>
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@xxxxxxxxxxxxxx>
[ukleinek: point out semantic change in commit log]
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@xxxxxxxxxxxxxx>
---
Changes since v1:
- as I dropped my two atmel patches and used Alexandre Belloni's (that are
already in next) instead, there are a few changes that are necessary to
adapt to the new base.
drivers/tty/serial/atmel_serial.c | 17 +----------------
1 file changed, 1 insertion(+), 16 deletions(-)
diff --git a/drivers/tty/serial/atmel_serial.c b/drivers/tty/serial/atmel_serial.c
index 937d67f22fba..357570a216ad 100644
--- a/drivers/tty/serial/atmel_serial.c
+++ b/drivers/tty/serial/atmel_serial.c
@@ -1689,22 +1689,7 @@ static void atmel_init_rs485(struct uart_port *port,
{
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;
+ of_get_rs485_mode(np, &port->rs485);
}
static void atmel_set_ops(struct uart_port *port)
--
2.11.0
--
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