linux-kernel - [PATCH v8 3/3] [media] imx214: Fix range for V4L2_CID

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Message-Id: <20181005124940.15539-3-ricardo.ribalda@gmail.com>
Date:   Fri,  5 Oct 2018 14:49:39 +0200
From:   Ricardo Ribalda Delgado <ricardo.ribalda@...il.com>
To:     Hans Verkuil <hans.verkuil@...co.com>,
        Laurent Pinchart <laurent.pinchart@...asonboard.com>,
        Sakari Ailus <sakari.ailus@...ux.intel.com>,
        Mauro Carvalho Chehab <mchehab+samsung@...nel.org>,
        linux-kernel@...r.kernel.org, linux-media@...r.kernel.org,
        jacopo@...ndi.org
Cc:     Ricardo Ribalda Delgado <ricardo.ribalda@...il.com>
Subject: [PATCH v8 3/3] [media] imx214: Fix range for V4L2_CID_EXPOSURE

Going above 3184 changes the frame-rate of the sensor. Without this
patch there is no way to change the exposure without affecting the
frame-rate.

With the proper documentation we should be able the change the
frame-rate at wish, but until that happens we just cap what the sensor
can do.

Signed-off-by: Ricardo Ribalda Delgado <ricardo.ribalda@...il.com>
---
 drivers/media/i2c/imx214.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/media/i2c/imx214.c b/drivers/media/i2c/imx214.c
index 46a2fdfbd049..0b99123161b8 100644
--- a/drivers/media/i2c/imx214.c
+++ b/drivers/media/i2c/imx214.c
@@ -1027,7 +1027,7 @@ static int imx214_probe(struct i2c_client *client)
 	 */
 	imx214->exposure = v4l2_ctrl_new_std(&imx214->ctrls, &imx214_ctrl_ops,
 					     V4L2_CID_EXPOSURE,
-					     0, 0xffff, 1, 0x0c70);
+					     0, 3184, 1, 0x0c70);
 
 	ret = imx214->ctrls.error;
 	if (ret) {
-- 
2.19.0