[PATCHv2 2/2] Input: ads7846 - configure pendown gpio as input
From: Sourav Poddar <hidden>
Date: 2011-02-03 09:48:50
Also in:
linux-input, linux-omap
Subsystem:
input (keyboard, mouse, joystick, touchscreen) drivers, the rest · Maintainers:
Dmitry Torokhov, Linus Torvalds
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; + } + ts->gpio_pendown = pdata->gpio_pendown; return 0;
--
1.7.0.4