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/ov5670.c | 11 +++++++++++
1 file changed, 11 insertions(+)
diff --git a/drivers/media/i2c/ov5670.c b/drivers/media/i2c/ov5670.c
index 041fcbb4eebd..1446aef1fc1e 100644
--- a/drivers/media/i2c/ov5670.c
+++ b/drivers/media/i2c/ov5670.c
@@ -2059,10 +2059,12 @@ static const struct v4l2_ctrl_ops ov5670_ctrl_ops = {
/* Initialize control handlers */
static int ov5670_init_controls(struct ov5670 *ov5670)
{
+ struct i2c_client *client = v4l2_get_subdevdata(&ov5670->sd);
struct v4l2_ctrl_handler *ctrl_hdlr;
s64 vblank_max;
s64 vblank_def;
s64 vblank_min;
+ u32 location;
s64 exposure_max;
int ret;
@@ -2124,6 +2126,15 @@ static int ov5670_init_controls(struct ov5670 *ov5670)
ARRAY_SIZE(ov5670_test_pattern_menu) - 1,
0, 0, ov5670_test_pattern_menu);
+ ret = device_property_read_u32(&client->dev, "location", &location);
+ if (!ret) {
+ v4l2_ctrl_new_std(ctrl_hdlr, &ov5670_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;
goto error;
--
2.22.0
