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Commit 1a58fbf5 authored by Rajmohan Mani's avatar Rajmohan Mani Committed by Mauro Carvalho Chehab
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[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: default avatarRajmohan Mani <rajmohan.mani@intel.com>
Signed-off-by: default avatarSakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: default avatarMauro Carvalho Chehab <mchehab@osg.samsung.com>
parent c3d14780

drivers/media/i2c/dw9714.c

+6 −1
Original line number Diff line number Diff line
@@ -20,6 +20,11 @@ 


#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
@@ -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",