[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]
Message-Id: <20190814202815.32491-6-jacopo@jmondi.org>
Date: Wed, 14 Aug 2019 22:28:15 +0200
From: Jacopo Mondi <jacopo@...ndi.org>
To: Mauro Carvalho Chehab <mchehab@...nel.org>,
Hans Verkuil <hverkuil-cisco@...all.nl>,
Sakari Ailus <sakari.ailus@...ux.intel.com>,
Laurent Pinchart <laurent.pinchart@...asonboard.com>
Cc: Jacopo Mondi <jacopo@...ndi.org>,
linux-media@...r.kernel.org (open list:MEDIA INPUT INFRASTRUCTURE
(V4L/DVB)), linux-kernel@...r.kernel.org (open list)
Subject: [RFC 5/5] media: i2c: ov13858: Report the camera location
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@...ndi.org>
---
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
Powered by blists - more mailing lists