Thread (7 messages) flat view 7 messages, 4 authors, 2011-02-03

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

From: Varadarajan, Charulatha <hidden>
Date: 2011-02-03 10:04:56
Also in: linux-arm-kernel, linux-omap

Sourav,

On Thu, Feb 3, 2011 at 15:28, Felipe Balbi [off-list ref] wrote:
On Thu, Feb 03, 2011 at 03:18:50PM +0530, Sourav Poddar wrote:
quoted
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 <redacted>
---
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;
and now you miss a gpio_free().
My question to your previous version is still unanswered.
Would it be relevant to add gpio_set_debounce() for this
gpio?
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