media: i2c: Fix max gain in ov8865

The maximum gain figure in the v4l2 ctrl is wrong. The field is 12 bits
wide, which is where the 8191 figure comes from, but the datasheet is
specific that maximum gain is 16x (the low seven bits are fractional, so
16x gain is 2048)

Signed-off-by: Daniel Scally <djrscally@gmail.com>
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>

diff --git a/drivers/media/i2c/ov8865.c b/drivers/media/i2c/ov8865.c
index 1aa577dba0a341174b85e0aa75a518ea0573d055..ebdb20d3fe9d8702ae795cfce1e43d759e2c4a34 100644 (file)
--- a/drivers/media/i2c/ov8865.c
+++ b/drivers/media/i2c/ov8865.c
@@ -2535,7 +2535,7 @@ static int ov8865_ctrls_init(struct ov8865_sensor *sensor)
 
        /* Gain */
 
-       v4l2_ctrl_new_std(handler, ops, V4L2_CID_ANALOGUE_GAIN, 128, 8191, 128,
+       v4l2_ctrl_new_std(handler, ops, V4L2_CID_ANALOGUE_GAIN, 128, 2048, 128,
                          128);
 
        /* White Balance */