The camera location is retrieved from the firmware interface parsing
the "location" device property and reported through the read-only
V4L2_CID_LOCATION control.
Signed-off-by: Jacopo Mondi <jacopo@xxxxxxxxxx>
---
drivers/media/i2c/ov13858.c | 11 +++++++++++
1 file changed, 11 insertions(+)
diff --git a/drivers/media/i2c/ov13858.c b/drivers/media/i2c/ov13858.c
index 45bb872db3c5..6baefc3083e1 100644
--- a/drivers/media/i2c/ov13858.c
+++ b/drivers/media/i2c/ov13858.c
@@ -1591,6 +1591,7 @@ static int ov13858_init_controls(struct ov13858 *ov13858)
struct i2c_client *client = v4l2_get_subdevdata(&ov13858->sd);
struct v4l2_ctrl_handler *ctrl_hdlr;
s64 exposure_max;
+ u32 location;
s64 vblank_def;
s64 vblank_min;
s64 hblank;
@@ -1659,6 +1660,16 @@ static int ov13858_init_controls(struct ov13858 *ov13858)
V4L2_CID_TEST_PATTERN,
ARRAY_SIZE(ov13858_test_pattern_menu) - 1,
0, 0, ov13858_test_pattern_menu);
+
+ ret = device_property_read_u32(&client->dev, "location", &location);
+ if (!ret) {
+ v4l2_ctrl_new_std(ctrl_hdlr, &ov13858_ctrl_ops,
+ V4L2_CID_LOCATION, V4L2_LOCATION_FRONT,
+ V4L2_LOCATION_BACK, 1,
+ location == V4L2_LOCATION_FRONT ?
+ V4L2_LOCATION_FRONT : V4L2_LOCATION_BACK);
+ }
+
if (ctrl_hdlr->error) {
ret = ctrl_hdlr->error;
dev_err(&client->dev, "%s control init failed (%d)\n",
--
2.22.0
