The pendown gpio was requested but not configured for input.
Configure it for input.
Signed-off-by: Igor Grinberg <grinberg@xxxxxxxxxxxxxx>
---
v2: add a separate gpio_direction_input() call
instead of a single gpio_request_one() call
so the driver will compile with !CONFIG_GENERIC_GPIO
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 1de1c19..886ec55 100644
--- a/drivers/input/touchscreen/ads7846.c
+++ b/drivers/input/touchscreen/ads7846.c
@@ -969,6 +969,13 @@ 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;
--
1.7.3.4
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