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 ads784return 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? -- To unsubscribe from this list: send the line "unsubscribe linux-omap" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html