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@xxxxxx>
---
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
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