Hi Rajmohan, On Wed, Aug 30, 2017 at 10:48:52AM -0700, Rajmohan Mani wrote: > 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.
Thanks for the patch. The recommended limit for line length is 75, not 50 (or 25 or whatever) as it might be in certain Gerrit installations. :-) Please make good use of lines in the future, I've rewrapped the text this time. Thanks. > > Signed-off-by: Rajmohan Mani <rajmohan.m...@intel.com> > --- > drivers/media/i2c/dw9714.c | 7 ++++++- > 1 file changed, 6 insertions(+), 1 deletion(-) > > diff --git a/drivers/media/i2c/dw9714.c b/drivers/media/i2c/dw9714.c > index 6a607d7..f9212a8 100644 > --- a/drivers/media/i2c/dw9714.c > +++ b/drivers/media/i2c/dw9714.c > @@ -22,6 +22,11 @@ > #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 > @@ -138,7 +143,7 @@ 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", -- Regards, Sakari Ailus e-mail: sakari.ai...@iki.fi
