diff --git a/drivers/media/i2c/imx214.c b/drivers/media/i2c/imx214.c
index 6a393e18267f..af6a3859c3f1 100644
--- a/drivers/media/i2c/imx214.c
+++ b/drivers/media/i2c/imx214.c
@@ -59,8 +59,6 @@ struct imx214 {
 
 	struct v4l2_subdev sd;
 	struct media_pad pad;
-	struct v4l2_mbus_framefmt fmt;
-	struct v4l2_rect crop;
 
 	struct v4l2_ctrl_handler ctrls;
 	struct v4l2_ctrl *pixel_rate;
@@ -71,12 +69,6 @@ struct imx214 {
 	struct regulator_bulk_data	supplies[IMX214_NUM_SUPPLIES];
 
 	struct gpio_desc *enable_gpio;
-
-	/*
-	 * Serialize control access, get/set format, get selection
-	 * and start streaming.
-	 */
-	struct mutex mutex;
 };
 
 struct reg_8 {
@@ -490,6 +482,22 @@ static int __maybe_unused imx214_power_off(struct device *dev)
 	return 0;
 }
 
+static void imx214_update_pad_format(struct imx214 *imx214,
+				     const struct imx214_mode *mode,
+				     struct v4l2_mbus_framefmt *fmt, u32 code)
+{
+	fmt->code = IMX214_MBUS_CODE;
+	fmt->width = mode->width;
+	fmt->height = mode->height;
+	fmt->field = V4L2_FIELD_NONE;
+	fmt->colorspace = V4L2_COLORSPACE_SRGB;
+	fmt->ycbcr_enc = V4L2_MAP_YCBCR_ENC_DEFAULT(fmt->colorspace);
+	fmt->quantization = V4L2_MAP_QUANTIZATION_DEFAULT(true,
+							  fmt->colorspace,
+							  fmt->ycbcr_enc);
+	fmt->xfer_func = V4L2_MAP_XFER_FUNC_DEFAULT(fmt->colorspace);
+}
+
 static int imx214_enum_mbus_code(struct v4l2_subdev *sd,
 				 struct v4l2_subdev_state *sd_state,
 				 struct v4l2_subdev_mbus_code_enum *code)
@@ -549,52 +557,6 @@ static const struct v4l2_subdev_core_ops imx214_core_ops = {
 #endif
 };
 
-static struct v4l2_mbus_framefmt *
-__imx214_get_pad_format(struct imx214 *imx214,
-			struct v4l2_subdev_state *sd_state,
-			unsigned int pad,
-			enum v4l2_subdev_format_whence which)
-{
-	switch (which) {
-	case V4L2_SUBDEV_FORMAT_TRY:
-		return v4l2_subdev_state_get_format(sd_state, pad);
-	case V4L2_SUBDEV_FORMAT_ACTIVE:
-		return &imx214->fmt;
-	default:
-		return NULL;
-	}
-}
-
-static int imx214_get_format(struct v4l2_subdev *sd,
-			     struct v4l2_subdev_state *sd_state,
-			     struct v4l2_subdev_format *format)
-{
-	struct imx214 *imx214 = to_imx214(sd);
-
-	mutex_lock(&imx214->mutex);
-	format->format = *__imx214_get_pad_format(imx214, sd_state,
-						  format->pad,
-						  format->which);
-	mutex_unlock(&imx214->mutex);
-
-	return 0;
-}
-
-static struct v4l2_rect *
-__imx214_get_pad_crop(struct imx214 *imx214,
-		      struct v4l2_subdev_state *sd_state,
-		      unsigned int pad, enum v4l2_subdev_format_whence which)
-{
-	switch (which) {
-	case V4L2_SUBDEV_FORMAT_TRY:
-		return v4l2_subdev_state_get_crop(sd_state, pad);
-	case V4L2_SUBDEV_FORMAT_ACTIVE:
-		return &imx214->crop;
-	default:
-		return NULL;
-	}
-}
-
 static int imx214_set_format(struct v4l2_subdev *sd,
 			     struct v4l2_subdev_state *sd_state,
 			     struct v4l2_subdev_format *format)
@@ -604,35 +566,21 @@ static int imx214_set_format(struct v4l2_subdev *sd,
 	struct v4l2_rect *__crop;
 	const struct imx214_mode *mode;
 
-	mutex_lock(&imx214->mutex);
-
-	__crop = __imx214_get_pad_crop(imx214, sd_state, format->pad,
-				       format->which);
-
 	mode = v4l2_find_nearest_size(imx214_modes,
 				      ARRAY_SIZE(imx214_modes), width, height,
 				      format->format.width,
 				      format->format.height);
 
+	imx214_update_pad_format(imx214, mode, &format->format,
+				 format->format.code);
+	__format = v4l2_subdev_state_get_format(sd_state, 0);
+
+	*__format = format->format;
+
+	__crop = v4l2_subdev_state_get_crop(sd_state, 0);
 	__crop->width = mode->width;
 	__crop->height = mode->height;
 
-	__format = __imx214_get_pad_format(imx214, sd_state, format->pad,
-					   format->which);
-	__format->width = __crop->width;
-	__format->height = __crop->height;
-	__format->code = IMX214_MBUS_CODE;
-	__format->field = V4L2_FIELD_NONE;
-	__format->colorspace = V4L2_COLORSPACE_SRGB;
-	__format->ycbcr_enc = V4L2_MAP_YCBCR_ENC_DEFAULT(__format->colorspace);
-	__format->quantization = V4L2_MAP_QUANTIZATION_DEFAULT(true,
-				__format->colorspace, __format->ycbcr_enc);
-	__format->xfer_func = V4L2_MAP_XFER_FUNC_DEFAULT(__format->colorspace);
-
-	format->format = *__format;
-
-	mutex_unlock(&imx214->mutex);
-
 	return 0;
 }
 
@@ -640,14 +588,9 @@ static int imx214_get_selection(struct v4l2_subdev *sd,
 				struct v4l2_subdev_state *sd_state,
 				struct v4l2_subdev_selection *sel)
 {
-	struct imx214 *imx214 = to_imx214(sd);
-
 	switch (sel->target) {
 	case V4L2_SEL_TGT_CROP:
-		mutex_lock(&imx214->mutex);
-		sel->r = *__imx214_get_pad_crop(imx214, sd_state, sel->pad,
-						sel->which);
-		mutex_unlock(&imx214->mutex);
+		sel->r = *v4l2_subdev_state_get_crop(sd_state, 0);
 		return 0;
 
 	case V4L2_SEL_TGT_NATIVE_SIZE:
@@ -826,40 +769,35 @@ static int imx214_write_table(struct imx214 *imx214,
 
 static int imx214_start_streaming(struct imx214 *imx214)
 {
+	const struct v4l2_mbus_framefmt *fmt;
+	struct v4l2_subdev_state *state;
 	const struct imx214_mode *mode;
 	int ret;
 
-	mutex_lock(&imx214->mutex);
 	ret = imx214_write_table(imx214, mode_table_common);
 	if (ret < 0) {
 		dev_err(imx214->dev, "could not sent common table %d\n", ret);
-		goto error;
+		return ret;
 	}
 
-	mode = v4l2_find_nearest_size(imx214_modes,
-				ARRAY_SIZE(imx214_modes), width, height,
-				imx214->fmt.width, imx214->fmt.height);
+	state = v4l2_subdev_get_locked_active_state(&imx214->sd);
+	fmt = v4l2_subdev_state_get_format(state, 0);
+	mode = v4l2_find_nearest_size(imx214_modes, ARRAY_SIZE(imx214_modes),
+				      width, height, fmt->width, fmt->height);
 	ret = imx214_write_table(imx214, mode->reg_table);
 	if (ret < 0) {
 		dev_err(imx214->dev, "could not sent mode table %d\n", ret);
-		goto error;
+		return ret;
 	}
 	ret = __v4l2_ctrl_handler_setup(&imx214->ctrls);
 	if (ret < 0) {
 		dev_err(imx214->dev, "could not sync v4l2 controls\n");
-		goto error;
+		return ret;
 	}
 	ret = regmap_write(imx214->regmap, IMX214_REG_MODE_SELECT, IMX214_MODE_STREAMING);
-	if (ret < 0) {
+	if (ret < 0)
 		dev_err(imx214->dev, "could not sent start table %d\n", ret);
-		goto error;
-	}
 
-	mutex_unlock(&imx214->mutex);
-	return 0;
-
-error:
-	mutex_unlock(&imx214->mutex);
 	return ret;
 }
 
@@ -877,6 +815,7 @@ static int imx214_stop_streaming(struct imx214 *imx214)
 static int imx214_s_stream(struct v4l2_subdev *subdev, int enable)
 {
 	struct imx214 *imx214 = to_imx214(subdev);
+	struct v4l2_subdev_state *state;
 	int ret;
 
 	if (enable) {
@@ -884,7 +823,9 @@ static int imx214_s_stream(struct v4l2_subdev *subdev, int enable)
 		if (ret < 0)
 			return ret;
 
+		state = v4l2_subdev_lock_and_get_active_state(subdev);
 		ret = imx214_start_streaming(imx214);
+		v4l2_subdev_unlock_state(state);
 		if (ret < 0)
 			goto err_rpm_put;
 	} else {
@@ -948,7 +889,7 @@ static const struct v4l2_subdev_pad_ops imx214_subdev_pad_ops = {
 	.enum_mbus_code = imx214_enum_mbus_code,
 	.enum_frame_size = imx214_enum_frame_size,
 	.enum_frame_interval = imx214_enum_frame_interval,
-	.get_fmt = imx214_get_format,
+	.get_fmt = v4l2_subdev_get_fmt,
 	.set_fmt = imx214_set_format,
 	.get_selection = imx214_get_selection,
 	.get_frame_interval = imx214_get_frame_interval,
@@ -1079,9 +1020,6 @@ static int imx214_probe(struct i2c_client *client)
 	if (ret < 0)
 		goto error_power_off;
 
-	mutex_init(&imx214->mutex);
-	imx214->ctrls.lock = &imx214->mutex;
-
 	imx214->sd.flags |= V4L2_SUBDEV_FL_HAS_DEVNODE;
 	imx214->pad.flags = MEDIA_PAD_FL_SOURCE;
 	imx214->sd.dev = &client->dev;
@@ -1093,7 +1031,12 @@ static int imx214_probe(struct i2c_client *client)
 		goto free_ctrl;
 	}
 
-	imx214_entity_init_state(&imx214->sd, NULL);
+	imx214->sd.state_lock = imx214->ctrls.lock;
+	ret = v4l2_subdev_init_finalize(&imx214->sd);
+	if (ret < 0) {
+		dev_err(dev, "subdev init error: %d\n", ret);
+		goto free_entity;
+	}
 
 	pm_runtime_set_active(imx214->dev);
 	pm_runtime_enable(imx214->dev);
@@ -1101,20 +1044,22 @@ static int imx214_probe(struct i2c_client *client)
 	ret = v4l2_async_register_subdev_sensor(&imx214->sd);
 	if (ret < 0) {
 		dev_err(dev, "could not register v4l2 device\n");
-		goto free_entity;
+		goto error_subdev_cleanup;
 	}
 
 	pm_runtime_idle(imx214->dev);
 
 	return 0;
 
-free_entity:
+error_subdev_cleanup:
 	pm_runtime_disable(imx214->dev);
 	pm_runtime_set_suspended(&client->dev);
+	v4l2_subdev_cleanup(&imx214->sd);
+
+free_entity:
 	media_entity_cleanup(&imx214->sd.entity);
 
 free_ctrl:
-	mutex_destroy(&imx214->mutex);
 	v4l2_ctrl_handler_free(&imx214->ctrls);
 
 error_power_off:
@@ -1129,9 +1074,9 @@ static void imx214_remove(struct i2c_client *client)
 	struct imx214 *imx214 = to_imx214(sd);
 
 	v4l2_async_unregister_subdev(&imx214->sd);
+	v4l2_subdev_cleanup(sd);
 	media_entity_cleanup(&imx214->sd.entity);
 	v4l2_ctrl_handler_free(&imx214->ctrls);
-	mutex_destroy(&imx214->mutex);
 	pm_runtime_disable(&client->dev);
 	if (!pm_runtime_status_suspended(&client->dev)) {
 		imx214_power_off(imx214->dev);