ptp: switch to use gpiolib

This platform supports gpiolib, so remove the custom API use
and replace with calls to gpiolib. Also request the GPIO before
starting to use it.

Cc: Imre Kaloz <kaloz@openwrt.org>
Cc: Alexandre Courbot <acourbot@nvidia.com>
Cc: netdev@vger.kernel.org
Acked-by: Richard Cochran <richardcochran@gmail.com>
Acked-by: Krzysztof Halasa <khc@pm.waw.pl>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>

1 files changed, 8 insertions, 1 deletions

diff --git a/drivers/ptp/ptp_ixp46x.c b/drivers/ptp/ptp_ixp46x.c
index d49b85164fd2..4a08727fcaf3 100644
--- a/drivers/ptp/ptp_ixp46x.c
+++ b/drivers/ptp/ptp_ixp46x.c
@@ -259,8 +259,15 @@ static struct ixp_clock ixp_clock;
 static int setup_interrupt(int gpio)
 {
         int irq;
+        int err;
 
-        gpio_line_config(gpio, IXP4XX_GPIO_IN);
+        err = gpio_request(gpio, "ixp4-ptp");
+        if (err)
+                return err;
+
+        err = gpio_direction_input(gpio);
+        if (err)
+                return err;
 
         irq = gpio_to_irq(gpio);