media: tvp5150: add subdev open/close callbacks

Bring the device into a working state upon a open/close call. Currently
this involves only the interrupt enable/disable process but can be
extended in the future.

Signed-off-by: Marco Felsch <m.felsch@pengutronix.de>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>

diff --git a/drivers/media/i2c/tvp5150.c b/drivers/media/i2c/tvp5150.c
index d59b52775334377166f306b916268033bbda890c..f28739d5830c20d893f63c43d0732ec8cf46ceef 100644 (file)
--- a/drivers/media/i2c/tvp5150.c
+++ b/drivers/media/i2c/tvp5150.c
@@ -1618,6 +1618,26 @@ err:
        return 0;
 }
 
+static int tvp5150_open(struct v4l2_subdev *sd, struct v4l2_subdev_fh *fh)
+{
+       int ret;
+
+       ret = pm_runtime_get_sync(sd->dev);
+       if (ret < 0) {
+               pm_runtime_put_noidle(sd->dev);
+               return ret;
+       }
+
+       return 0;
+}
+
+static int tvp5150_close(struct v4l2_subdev *sd, struct v4l2_subdev_fh *fh)
+{
+       pm_runtime_put(sd->dev);
+
+       return 0;
+}
+
 /* ----------------------------------------------------------------------- */
 
 static const struct v4l2_ctrl_ops tvp5150_ctrl_ops = {
@@ -1675,6 +1695,8 @@ static const struct v4l2_subdev_ops tvp5150_ops = {
 
 static const struct v4l2_subdev_internal_ops tvp5150_internal_ops = {
        .registered = tvp5150_registered,
+       .open = tvp5150_open,
+       .close = tvp5150_close,
 };
 
 /****************************************************************************