diff options
| author | Michael Grzeschik <m.grzeschik@pengutronix.de> | 2014-02-13 10:52:03 +0100 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2014-02-13 09:57:33 -0800 |
| commit | a64c1a1c755674399da3689499b3f64c2a538120 (patch) | |
| tree | 2a60a02f001446d14ef8b0ad70fa093a3a4a0dc4 | |
| parent | 13b949f03e642c5df36ebf5b4770d75f8c4a6b09 (diff) | |
serial: omap: fix rs485 probe on defered pinctrl
If the gpio is not yet available we better also
defer the probing in the rs485 case.
Signed-off-by: Michael Grzeschik <m.grzeschik@pengutronix.de>
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| -rw-r--r-- | drivers/tty/serial/omap-serial.c | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/drivers/tty/serial/omap-serial.c b/drivers/tty/serial/omap-serial.c index 20515817309..77f035158d6 100644 --- a/drivers/tty/serial/omap-serial.c +++ b/drivers/tty/serial/omap-serial.c @@ -1601,8 +1601,11 @@ static int serial_omap_probe_rs485(struct uart_omap_port *up, flags & SER_RS485_RTS_AFTER_SEND); if (ret < 0) return ret; - } else + } else if (up->rts_gpio == -EPROBE_DEFER) { + return -EPROBE_DEFER; + } else { up->rts_gpio = -EINVAL; + } if (of_property_read_u32_array(np, "rs485-rts-delay", rs485_delay, 2) == 0) { |