On Thu, Feb 3, 2011 at 3:34 PM, Varadarajan, Charulatha <charu@xxxxxx> wrote:
> Sourav,
>
> On Thu, Feb 3, 2011 at 15:28, Felipe Balbi <balbi@xxxxxx> wrote:
>> On Thu, Feb 03, 2011 at 03:18:50PM +0530, Sourav Poddar wrote:
>>> 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;
>>
>> 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?
>
I was also wondering that.I too think that just a request and then an
configuring direction would do.But,I am not so sure about this one.
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