Input: ads7846 - fix gpio_pendown configuration

The pendown gpio was requested but not configured for input.
Configure it for input.

Signed-off-by: Igor Grinberg <grinberg@compulab.co.il>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>

diff --git a/drivers/input/touchscreen/ads7846.c b/drivers/input/touchscreen/ads7846.c
index e4ee43e159d2d0b761e0ec61038281cd4043a540..beb754ff931b2abc114a89ec2fd939510132e77b 100644 (file)
--- a/drivers/input/touchscreen/ads7846.c
+++ b/drivers/input/touchscreen/ads7846.c
@@ -966,6 +966,13 @@ static int __devinit ads7846_setup_pendown(struct spi_device *spi, struct ads784
                                pdata->gpio_pendown);
                        return err;
                }
+               err = gpio_direction_input(pdata->gpio_pendown);
+               if (err) {
+                       dev_err(&spi->dev, "failed to setup pendown GPIO%d\n",
+                               pdata->gpio_pendown);
+                       gpio_free(pdata->gpio_pendown);
+                       return err;
+               }
 
                ts->gpio_pendown = pdata->gpio_pendown;