[PATCHv2 2/2] Input: ads7846 - configure pendown gpio as input

[Sourav Poddar]

The ads7846 driver requests a gpio to detect pendown events,
but does not configure its direction. Configure this gpio
as an input after requesting it.

Signed-off-by: Sourav Poddar <sourav.poddar at ti.com>
---
changes between v2 and v1: Added return error support in v2. 
 
drivers/input/touchscreen/ads7846.c |    7 +++++++
1 files changed, 7 insertions(+), 0 deletions(-)

diff --git a/drivers/input/touchscreen/ads7846.c b/drivers/input/touchscreen/ads7846.c
index 036f245..f30768b 100644
--- a/drivers/input/touchscreen/ads7846.c
+++ b/drivers/input/touchscreen/ads7846.c
@@ -962,6 +962,13 @@ static int __devinit ads7846_setup_pendown(struct spi_device *spi, struct ads784
 		return err;
 	}
 
+	err = gpio_direction_input(pdata->gpio_pendown);
+	if (err) {
+		dev_err(&spi->dev, "failed to configure pendown GPIO input direction %d\n",
+			pdata->gpio_pendown);
+		return err;
+        }
+
 	ts->gpio_pendown = pdata->gpio_pendown;
 
 	return 0;
-- 
1.7.0.4