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| author | Rajmohan Mani | 2017-08-30 19:48:52 +0200 |
|---|---|---|
| committer | Mauro Carvalho Chehab | 2017-10-04 22:08:47 +0200 |
| commit | 1a58fbf5133c0c016decfa85f20b97a69672e315 (patch) | |
| tree | 4a51624c32797ff74e343616297d2858d76f48ce /drivers/media/i2c/dw9714.c | |
| parent | [media] ov2640: Check the return value from clk_prepare_enable() (diff) | |
| download | kernel-qcow2-linux-1a58fbf5133c0c016decfa85f20b97a69672e315.tar.gz kernel-qcow2-linux-1a58fbf5133c0c016decfa85f20b97a69672e315.tar.xz kernel-qcow2-linux-1a58fbf5133c0c016decfa85f20b97a69672e315.zip | |
[media] dw9714: Set the v4l2 focus ctrl step as 1
Current v4l2 focus ctrl step value of 16, limits the minimum granularity
of focus positions to 16. Setting this value as 1, enables more accurate
focus positions.
Signed-off-by: Rajmohan Mani <rajmohan.mani@intel.com>
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
Diffstat (limited to 'drivers/media/i2c/dw9714.c')
| -rw-r--r-- | drivers/media/i2c/dw9714.c | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/drivers/media/i2c/dw9714.c b/drivers/media/i2c/dw9714.c index 95af4fc99cd0..ed01e8bd4331 100644 --- a/drivers/media/i2c/dw9714.c +++ b/drivers/media/i2c/dw9714.c @@ -21,6 +21,11 @@ #define DW9714_NAME "dw9714" #define DW9714_MAX_FOCUS_POS 1023 /* + * This sets the minimum granularity for the focus positions. + * A value of 1 gives maximum accuracy for a desired focus position + */ +#define DW9714_FOCUS_STEPS 1 +/* * This acts as the minimum granularity of lens movement. * Keep this value power of 2, so the control steps can be * uniformly adjusted for gradual lens movement, with desired @@ -137,7 +142,7 @@ static int dw9714_init_controls(struct dw9714_device *dev_vcm) v4l2_ctrl_handler_init(hdl, 1); v4l2_ctrl_new_std(hdl, ops, V4L2_CID_FOCUS_ABSOLUTE, - 0, DW9714_MAX_FOCUS_POS, DW9714_CTRL_STEPS, 0); + 0, DW9714_MAX_FOCUS_POS, DW9714_FOCUS_STEPS, 0); if (hdl->error) dev_err(&client->dev, "%s fail error: 0x%x\n", |