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| author | Mauro Carvalho Chehab <mchehab@s-opensource.com> | 2017-04-19 08:43:49 -0300 |
|---|---|---|
| committer | Mauro Carvalho Chehab <mchehab@s-opensource.com> | 2017-04-19 08:49:15 -0300 |
| commit | a463ea990d2138ca93027b006be96a0324b77fe4 (patch) | |
| tree | 75dcca851bdfb33ee81505416e0477eb130a8a86 /drivers/media/i2c/ov2640.c | |
| parent | 26c7e7bc50b85465c934140a5009d61551e51057 (diff) | |
| download | linux-a463ea990d2138ca93027b006be96a0324b77fe4.tar.gz | |
[media] ov2640: make GPIOLIB an optional dependency
As warned by kbuild test robot:
warning: (VIDEO_EM28XX_V4L2) selects VIDEO_OV2640 which has unmet direct dependencies (MEDIA_SUPPORT && VIDEO_V4L2 && I2C && GPIOLIB && MEDIA_CAMERA_SUPPORT)
The em28xx driver can use ov2640, but it doesn't depend
(or use) the GPIOLIB in order to power off/on the sensor.
So, as we want to allow both usages with and without
GPIOLIB, make its dependency optional.
Reported-by: kbuild test robot <fengguang.wu@intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
Diffstat (limited to 'drivers/media/i2c/ov2640.c')
| -rw-r--r-- | drivers/media/i2c/ov2640.c | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/drivers/media/i2c/ov2640.c b/drivers/media/i2c/ov2640.c index d55ca37dc12f..9c00ed3543f8 100644 --- a/drivers/media/i2c/ov2640.c +++ b/drivers/media/i2c/ov2640.c @@ -743,13 +743,16 @@ static int ov2640_s_power(struct v4l2_subdev *sd, int on) struct i2c_client *client = v4l2_get_subdevdata(sd); struct ov2640_priv *priv = to_ov2640(client); - gpiod_direction_output(priv->pwdn_gpio, !on); +#ifdef CONFIG_GPIOLIB + if (priv->pwdn_gpio) + gpiod_direction_output(priv->pwdn_gpio, !on); if (on && priv->resetb_gpio) { /* Active the resetb pin to perform a reset pulse */ gpiod_direction_output(priv->resetb_gpio, 1); usleep_range(3000, 5000); gpiod_direction_output(priv->resetb_gpio, 0); } +#endif return 0; } |