[media] m5mols: Add image stabilization control

Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

drivers/media/video/m5mols/m5mols.h

@@ -170,6 +170,7 @@ struct m5mols_version {
  * @saturation: saturation control
  * @zoom: zoom control
  * @wdr: wide dynamic range control
+ * @stabilization: image stabilization control
  * @ver: information of the version
  * @cap: the capture mode attributes
  * @power: current sensor's power status
@@ -209,6 +210,7 @@ struct m5mols_info {
 	struct v4l2_ctrl *saturation;
 	struct v4l2_ctrl *zoom;
 	struct v4l2_ctrl *wdr;
+	struct v4l2_ctrl *stabilization;
 
 	struct m5mols_version ver;
 	struct m5mols_capture cap;

drivers/media/video/m5mols/m5mols_controls.c

@@ -375,6 +375,19 @@ static int m5mols_set_wdr(struct m5mols_info *info, int wdr)
 	return m5mols_write(&info->sd, CAPP_WDR_EN, wdr);
 }
 
+static int m5mols_set_stabilization(struct m5mols_info *info, int val)
+{
+	struct v4l2_subdev *sd = &info->sd;
+	unsigned int evp = val ? 0xe : 0x0;
+	int ret;
+
+	ret = m5mols_write(sd, AE_EV_PRESET_MONITOR, evp);
+	if (ret < 0)
+		return ret;
+
+	return m5mols_write(sd, AE_EV_PRESET_CAPTURE, evp);
+}
+
 static int m5mols_g_volatile_ctrl(struct v4l2_ctrl *ctrl)
 {
 	struct v4l2_subdev *sd = to_sd(ctrl);
@@ -455,6 +468,10 @@ static int m5mols_s_ctrl(struct v4l2_ctrl *ctrl)
 	case V4L2_CID_WIDE_DYNAMIC_RANGE:
 		ret = m5mols_set_wdr(info, ctrl->val);
 		break;
+
+	case V4L2_CID_IMAGE_STABILIZATION:
+		ret = m5mols_set_stabilization(info, ctrl->val);
+		break;
 	}
 
 	if (ret == 0 && info->mode != last_mode)
@@ -535,6 +552,9 @@ int m5mols_init_controls(struct v4l2_subdev *sd)
 	info->wdr = v4l2_ctrl_new_std(&info->handle, &m5mols_ctrl_ops,
 			V4L2_CID_WIDE_DYNAMIC_RANGE, 0, 1, 1, 0);
 
+	info->stabilization = v4l2_ctrl_new_std(&info->handle, &m5mols_ctrl_ops,
+			V4L2_CID_IMAGE_STABILIZATION, 0, 1, 1, 0);
+
 	if (info->handle.error) {
 		int ret = info->handle.error;
 		v4l2_err(sd, "Failed to initialize controls: %d\n", ret);