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authorLee Jones <lee.jones@linaro.org>2017-02-08 09:24:25 +0000
committerLinus Walleij <linus.walleij@linaro.org>2017-03-14 10:36:41 +0100
commit0043c1dfbec7b6e2427409059b05347d6f51aa9f (patch)
tree8114aabec73947d515d2b9229d667d26abcd0be3 /drivers/tty/serial/st-asc.c
parentf759921cfbf4847319d197a6ed7c9534d593f8bc (diff)
serial: st-asc: Use new GPIOD API to obtain RTS pin
The commits mentioned below adapt the GPIO API to allow more information to be passed directly through devm_get_gpiod_from_child() in the first instance. This facilitates the removal of subsequent calls, such as gpiod_direction_output(). This patch firstly moves to utilise the new API and secondly removes the now superfluous call do set the direction. Reported-by: Stephen Rothwell <sfr@canb.auug.org.au> Suggested-by: Boris Brezillon <boris.brezillon@free-electrons.com> Signed-off-by: Lee Jones <lee.jones@linaro.org> [Also drop the header file dummies that only this driver was using] Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Diffstat (limited to 'drivers/tty/serial/st-asc.c')
-rw-r--r--drivers/tty/serial/st-asc.c11
1 files changed, 6 insertions, 5 deletions
diff --git a/drivers/tty/serial/st-asc.c b/drivers/tty/serial/st-asc.c
index bcf1d33e6ffe..c334bcc59c64 100644
--- a/drivers/tty/serial/st-asc.c
+++ b/drivers/tty/serial/st-asc.c
@@ -575,12 +575,13 @@ static void asc_set_termios(struct uart_port *port, struct ktermios *termios,
pinctrl_select_state(ascport->pinctrl,
ascport->states[NO_HW_FLOWCTRL]);
- gpiod = devm_get_gpiod_from_child(port->dev, "rts",
- &np->fwnode);
- if (!IS_ERR(gpiod)) {
- gpiod_direction_output(gpiod, 0);
+ gpiod = devm_fwnode_get_gpiod_from_child(port->dev,
+ "rts",
+ &np->fwnode,
+ GPIOD_OUT_LOW,
+ np->name);
+ if (!IS_ERR(gpiod))
ascport->rts = gpiod;
- }
}
}