[PATCH v13 17/21] media: tvp5150: add subdev open/close callbacks

Marco Felsch
2020-03-12T10:32:43Z

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>
---
drivers/media/i2c/tvp5150.c | 22 ++++++++++++++++++++++
1 file changed, 22 insertions(+)

diff --git a/drivers/media/i2c/tvp5150.c b/drivers/media/i2c/tvp5150.c
index d59b52775334..f28739d5830c 100644
--- a/drivers/media/i2c/tvp5150.c
+++ b/drivers/media/i2c/tvp5150.c
@@ -1618,6 +1618,26 @@ static int tvp5150_registered(struct v4l2_subdev *sd)
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,
};

/****************************************************************************
--
2.20.1