[v3,04/22] media: camss: Make ISPIF subdevice optional

diff --git a/drivers/media/platform/qcom/camss/camss-ispif.c b/drivers/media/platform/qcom/camss/camss-ispif.c
index adeb92808998..c36570042082 100644
--- a/drivers/media/platform/qcom/camss/camss-ispif.c
+++ b/drivers/media/platform/qcom/camss/camss-ispif.c
@@ -161,6 +161,7 @@  static const u32 ispif_formats_8x96[] = {
 static irqreturn_t ispif_isr_8x96(int irq, void *dev)
 {
 	struct ispif_device *ispif = dev;
+	struct camss *camss = ispif->camss;
 	u32 value0, value1, value2, value3, value4, value5;
 
 	value0 = readl_relaxed(ispif->base + ISPIF_VFE_m_IRQ_STATUS_0(0));
@@ -186,34 +187,34 @@  static irqreturn_t ispif_isr_8x96(int irq, void *dev)
 		complete(&ispif->reset_complete[1]);
 
 	if (unlikely(value0 & ISPIF_VFE_m_IRQ_STATUS_0_PIX0_OVERFLOW))
-		dev_err_ratelimited(to_device(ispif), "VFE0 pix0 overflow\n");
+		dev_err_ratelimited(camss->dev, "VFE0 pix0 overflow\n");
 
 	if (unlikely(value0 & ISPIF_VFE_m_IRQ_STATUS_0_RDI0_OVERFLOW))
-		dev_err_ratelimited(to_device(ispif), "VFE0 rdi0 overflow\n");
+		dev_err_ratelimited(camss->dev, "VFE0 rdi0 overflow\n");
 
 	if (unlikely(value1 & ISPIF_VFE_m_IRQ_STATUS_1_PIX1_OVERFLOW))
-		dev_err_ratelimited(to_device(ispif), "VFE0 pix1 overflow\n");
+		dev_err_ratelimited(camss->dev, "VFE0 pix1 overflow\n");
 
 	if (unlikely(value1 & ISPIF_VFE_m_IRQ_STATUS_1_RDI1_OVERFLOW))
-		dev_err_ratelimited(to_device(ispif), "VFE0 rdi1 overflow\n");
+		dev_err_ratelimited(camss->dev, "VFE0 rdi1 overflow\n");
 
 	if (unlikely(value2 & ISPIF_VFE_m_IRQ_STATUS_2_RDI2_OVERFLOW))
-		dev_err_ratelimited(to_device(ispif), "VFE0 rdi2 overflow\n");
+		dev_err_ratelimited(camss->dev, "VFE0 rdi2 overflow\n");
 
 	if (unlikely(value3 & ISPIF_VFE_m_IRQ_STATUS_0_PIX0_OVERFLOW))
-		dev_err_ratelimited(to_device(ispif), "VFE1 pix0 overflow\n");
+		dev_err_ratelimited(camss->dev, "VFE1 pix0 overflow\n");
 
 	if (unlikely(value3 & ISPIF_VFE_m_IRQ_STATUS_0_RDI0_OVERFLOW))
-		dev_err_ratelimited(to_device(ispif), "VFE1 rdi0 overflow\n");
+		dev_err_ratelimited(camss->dev, "VFE1 rdi0 overflow\n");
 
 	if (unlikely(value4 & ISPIF_VFE_m_IRQ_STATUS_1_PIX1_OVERFLOW))
-		dev_err_ratelimited(to_device(ispif), "VFE1 pix1 overflow\n");
+		dev_err_ratelimited(camss->dev, "VFE1 pix1 overflow\n");
 
 	if (unlikely(value4 & ISPIF_VFE_m_IRQ_STATUS_1_RDI1_OVERFLOW))
-		dev_err_ratelimited(to_device(ispif), "VFE1 rdi1 overflow\n");
+		dev_err_ratelimited(camss->dev, "VFE1 rdi1 overflow\n");
 
 	if (unlikely(value5 & ISPIF_VFE_m_IRQ_STATUS_2_RDI2_OVERFLOW))
-		dev_err_ratelimited(to_device(ispif), "VFE1 rdi2 overflow\n");
+		dev_err_ratelimited(camss->dev, "VFE1 rdi2 overflow\n");
 
 	return IRQ_HANDLED;
 }
@@ -228,6 +229,7 @@  static irqreturn_t ispif_isr_8x96(int irq, void *dev)
 static irqreturn_t ispif_isr_8x16(int irq, void *dev)
 {
 	struct ispif_device *ispif = dev;
+	struct camss *camss = ispif->camss;
 	u32 value0, value1, value2;
 
 	value0 = readl_relaxed(ispif->base + ISPIF_VFE_m_IRQ_STATUS_0(0));
@@ -244,30 +246,32 @@  static irqreturn_t ispif_isr_8x16(int irq, void *dev)
 		complete(&ispif->reset_complete[0]);
 
 	if (unlikely(value0 & ISPIF_VFE_m_IRQ_STATUS_0_PIX0_OVERFLOW))
-		dev_err_ratelimited(to_device(ispif), "VFE0 pix0 overflow\n");
+		dev_err_ratelimited(camss->dev, "VFE0 pix0 overflow\n");
 
 	if (unlikely(value0 & ISPIF_VFE_m_IRQ_STATUS_0_RDI0_OVERFLOW))
-		dev_err_ratelimited(to_device(ispif), "VFE0 rdi0 overflow\n");
+		dev_err_ratelimited(camss->dev, "VFE0 rdi0 overflow\n");
 
 	if (unlikely(value1 & ISPIF_VFE_m_IRQ_STATUS_1_PIX1_OVERFLOW))
-		dev_err_ratelimited(to_device(ispif), "VFE0 pix1 overflow\n");
+		dev_err_ratelimited(camss->dev, "VFE0 pix1 overflow\n");
 
 	if (unlikely(value1 & ISPIF_VFE_m_IRQ_STATUS_1_RDI1_OVERFLOW))
-		dev_err_ratelimited(to_device(ispif), "VFE0 rdi1 overflow\n");
+		dev_err_ratelimited(camss->dev, "VFE0 rdi1 overflow\n");
 
 	if (unlikely(value2 & ISPIF_VFE_m_IRQ_STATUS_2_RDI2_OVERFLOW))
-		dev_err_ratelimited(to_device(ispif), "VFE0 rdi2 overflow\n");
+		dev_err_ratelimited(camss->dev, "VFE0 rdi2 overflow\n");
 
 	return IRQ_HANDLED;
 }
 
 static int ispif_vfe_reset(struct ispif_device *ispif, u8 vfe_id)
 {
+	struct camss *camss = ispif->camss;
+
 	unsigned long time;
 	u32 val;
 
-	if (vfe_id > (to_camss(ispif)->vfe_num - 1)) {
-		dev_err(to_device(ispif),
+	if (vfe_id > (camss->vfe_num - 1)) {
+		dev_err(camss->dev,
 			"Error: asked reset for invalid VFE%d\n", vfe_id);
 		return -ENOENT;
 	}
@@ -300,7 +304,7 @@  static int ispif_vfe_reset(struct ispif_device *ispif, u8 vfe_id)
 	time = wait_for_completion_timeout(&ispif->reset_complete[vfe_id],
 		msecs_to_jiffies(ISPIF_RESET_TIMEOUT_MS));
 	if (!time) {
-		dev_err(to_device(ispif),
+		dev_err(camss->dev,
 			"ISPIF for VFE%d reset timeout\n", vfe_id);
 		return -EIO;
 	}
@@ -316,30 +320,31 @@  static int ispif_vfe_reset(struct ispif_device *ispif, u8 vfe_id)
  */
 static int ispif_reset(struct ispif_device *ispif, u8 vfe_id)
 {
+	struct camss *camss = ispif->camss;
 	int ret;
 
-	ret = camss_pm_domain_on(to_camss(ispif), PM_DOMAIN_VFE0);
+	ret = camss_pm_domain_on(camss, PM_DOMAIN_VFE0);
 	if (ret < 0)
 		return ret;
 
-	ret = camss_pm_domain_on(to_camss(ispif), PM_DOMAIN_VFE1);
+	ret = camss_pm_domain_on(camss, PM_DOMAIN_VFE1);
 	if (ret < 0)
 		return ret;
 
 	ret = camss_enable_clocks(ispif->nclocks_for_reset,
 				  ispif->clock_for_reset,
-				  to_device(ispif));
+				  camss->dev);
 	if (ret < 0)
 		return ret;
 
 	ret = ispif_vfe_reset(ispif, vfe_id);
 	if (ret)
-		dev_dbg(to_device(ispif), "ISPIF Reset failed\n");
+		dev_dbg(camss->dev, "ISPIF Reset failed\n");
 
 	camss_disable_clocks(ispif->nclocks_for_reset, ispif->clock_for_reset);
 
-	camss_pm_domain_off(to_camss(ispif), PM_DOMAIN_VFE0);
-	camss_pm_domain_off(to_camss(ispif), PM_DOMAIN_VFE1);
+	camss_pm_domain_off(camss, PM_DOMAIN_VFE0);
+	camss_pm_domain_off(camss, PM_DOMAIN_VFE1);
 
 	return ret;
 }
@@ -355,7 +360,7 @@  static int ispif_set_power(struct v4l2_subdev *sd, int on)
 {
 	struct ispif_line *line = v4l2_get_subdevdata(sd);
 	struct ispif_device *ispif = line->ispif;
-	struct device *dev = to_device(ispif);
+	struct device *dev = ispif->camss->dev;
 	int ret = 0;
 
 	mutex_lock(&ispif->power_lock);
@@ -505,7 +510,7 @@  static int ispif_validate_intf_status(struct ispif_device *ispif,
 	}
 
 	if ((val & 0xf) != 0xf) {
-		dev_err(to_device(ispif), "%s: ispif is busy: 0x%x\n",
+		dev_err(ispif->camss->dev, "%s: ispif is busy: 0x%x\n",
 			__func__, val);
 		ret = -EBUSY;
 	}
@@ -552,7 +557,7 @@  static int ispif_wait_for_stop(struct ispif_device *ispif,
 				 ISPIF_TIMEOUT_SLEEP_US,
 				 ISPIF_TIMEOUT_ALL_US);
 	if (ret < 0)
-		dev_err(to_device(ispif), "%s: ispif stop timeout\n",
+		dev_err(ispif->camss->dev, "%s: ispif stop timeout\n",
 			__func__);
 
 	return ret;
@@ -800,6 +805,7 @@  static int ispif_set_stream(struct v4l2_subdev *sd, int enable)
 {
 	struct ispif_line *line = v4l2_get_subdevdata(sd);
 	struct ispif_device *ispif = line->ispif;
+	struct camss *camss = ispif->camss;
 	enum ispif_intf intf = line->interface;
 	u8 csid = line->csid_id;
 	u8 vfe = line->vfe_id;
@@ -825,8 +831,8 @@  static int ispif_set_stream(struct v4l2_subdev *sd, int enable)
 		ispif_select_csid(ispif, intf, csid, vfe, 1);
 		ispif_select_cid(ispif, intf, cid, vfe, 1);
 		ispif_config_irq(ispif, intf, vfe, 1);
-		if (to_camss(ispif)->version == CAMSS_8x96 ||
-		    to_camss(ispif)->version == CAMSS_660)
+		if (camss->version == CAMSS_8x96 ||
+		    camss->version == CAMSS_660)
 			ispif_config_pack(ispif,
 					  line->fmt[MSM_ISPIF_PAD_SINK].code,
 					  intf, cid, vfe, 1);
@@ -843,8 +849,8 @@  static int ispif_set_stream(struct v4l2_subdev *sd, int enable)
 			return ret;
 
 		mutex_lock(&ispif->config_lock);
-		if (to_camss(ispif)->version == CAMSS_8x96 ||
-		    to_camss(ispif)->version == CAMSS_660)
+		if (camss->version == CAMSS_8x96 ||
+		    camss->version == CAMSS_660)
 			ispif_config_pack(ispif,
 					  line->fmt[MSM_ISPIF_PAD_SINK].code,
 					  intf, cid, vfe, 0);
@@ -1088,26 +1094,29 @@  static int ispif_init_formats(struct v4l2_subdev *sd, struct v4l2_subdev_fh *fh)
  *
  * Return 0 on success or a negative error code otherwise
  */
-int msm_ispif_subdev_init(struct ispif_device *ispif,
+int msm_ispif_subdev_init(struct camss *camss,
 			  const struct resources_ispif *res)
 {
-	struct device *dev = to_device(ispif);
+	struct device *dev = camss->dev;
+	struct ispif_device *ispif = camss->ispif;
 	struct platform_device *pdev = to_platform_device(dev);
 	struct resource *r;
 	int i;
 	int ret;
 
+	ispif->camss = camss;
+
 	/* Number of ISPIF lines - same as number of CSID hardware modules */
-	if (to_camss(ispif)->version == CAMSS_8x16)
+	if (camss->version == CAMSS_8x16)
 		ispif->line_num = 2;
-	else if (to_camss(ispif)->version == CAMSS_8x96 ||
-		 to_camss(ispif)->version == CAMSS_660)
+	else if (camss->version == CAMSS_8x96 ||
+		 camss->version == CAMSS_660)
 		ispif->line_num = 4;
 	else
 		return -EINVAL;
 
-	ispif->line = devm_kcalloc(dev, ispif->line_num, sizeof(*ispif->line),
-				   GFP_KERNEL);
+	ispif->line = devm_kcalloc(dev, ispif->line_num,
+			sizeof(*ispif->line), GFP_KERNEL);
 	if (!ispif->line)
 		return -ENOMEM;
 
@@ -1115,12 +1124,12 @@  int msm_ispif_subdev_init(struct ispif_device *ispif,
 		ispif->line[i].ispif = ispif;
 		ispif->line[i].id = i;
 
-		if (to_camss(ispif)->version == CAMSS_8x16) {
+		if (camss->version == CAMSS_8x16) {
 			ispif->line[i].formats = ispif_formats_8x16;
 			ispif->line[i].nformats =
 					ARRAY_SIZE(ispif_formats_8x16);
-		} else if (to_camss(ispif)->version == CAMSS_8x96 ||
-			   to_camss(ispif)->version == CAMSS_660) {
+		} else if (camss->version == CAMSS_8x96 ||
+			   camss->version == CAMSS_660) {
 			ispif->line[i].formats = ispif_formats_8x96;
 			ispif->line[i].nformats =
 					ARRAY_SIZE(ispif_formats_8x96);
@@ -1157,15 +1166,16 @@  int msm_ispif_subdev_init(struct ispif_device *ispif,
 	ispif->irq = r->start;
 	snprintf(ispif->irq_name, sizeof(ispif->irq_name), "%s_%s",
 		 dev_name(dev), MSM_ISPIF_NAME);
-	if (to_camss(ispif)->version == CAMSS_8x16)
+	if (camss->version == CAMSS_8x16)
 		ret = devm_request_irq(dev, ispif->irq, ispif_isr_8x16,
 			       IRQF_TRIGGER_RISING, ispif->irq_name, ispif);
-	else if (to_camss(ispif)->version == CAMSS_8x96 ||
-		 to_camss(ispif)->version == CAMSS_660)
+	else if (camss->version == CAMSS_8x96 ||
+		 camss->version == CAMSS_660)
 		ret = devm_request_irq(dev, ispif->irq, ispif_isr_8x96,
 			       IRQF_TRIGGER_RISING, ispif->irq_name, ispif);
 	else
 		ret = -EINVAL;
+
 	if (ret < 0) {
 		dev_err(dev, "request_irq failed: %d\n", ret);
 		return ret;
@@ -1331,10 +1341,13 @@  static const struct media_entity_operations ispif_media_ops = {
 int msm_ispif_register_entities(struct ispif_device *ispif,
 				struct v4l2_device *v4l2_dev)
 {
-	struct device *dev = to_device(ispif);
+	struct camss *camss =  ispif->camss;
 	int ret;
 	int i;
 
+	if (!ispif)
+		return 0;
+
 	for (i = 0; i < ispif->line_num; i++) {
 		struct v4l2_subdev *sd = &ispif->line[i].subdev;
 		struct media_pad *pads = ispif->line[i].pads;
@@ -1348,7 +1361,7 @@  int msm_ispif_register_entities(struct ispif_device *ispif,
 
 		ret = ispif_init_formats(sd, NULL);
 		if (ret < 0) {
-			dev_err(dev, "Failed to init format: %d\n", ret);
+			dev_err(camss->dev, "Failed to init format: %d\n", ret);
 			goto error;
 		}
 
@@ -1360,13 +1373,15 @@  int msm_ispif_register_entities(struct ispif_device *ispif,
 		ret = media_entity_pads_init(&sd->entity, MSM_ISPIF_PADS_NUM,
 					     pads);
 		if (ret < 0) {
-			dev_err(dev, "Failed to init media entity: %d\n", ret);
+			dev_err(camss->dev, "Failed to init media entity: %d\n",
+				ret);
 			goto error;
 		}
 
 		ret = v4l2_device_register_subdev(v4l2_dev, sd);
 		if (ret < 0) {
-			dev_err(dev, "Failed to register subdev: %d\n", ret);
+			dev_err(camss->dev, "Failed to register subdev: %d\n",
+				ret);
 			media_entity_cleanup(&sd->entity);
 			goto error;
 		}
@@ -1393,6 +1408,9 @@  void msm_ispif_unregister_entities(struct ispif_device *ispif)
 {
 	int i;
 
+	if (!ispif)
+		return;
+
 	mutex_destroy(&ispif->power_lock);
 	mutex_destroy(&ispif->config_lock);
 
diff --git a/drivers/media/platform/qcom/camss/camss-ispif.h b/drivers/media/platform/qcom/camss/camss-ispif.h
index 4132174f7ea1..fdf28e68cc7d 100644
--- a/drivers/media/platform/qcom/camss/camss-ispif.h
+++ b/drivers/media/platform/qcom/camss/camss-ispif.h
@@ -63,11 +63,12 @@  struct ispif_device {
 	struct mutex config_lock;
 	unsigned int line_num;
 	struct ispif_line *line;
+	struct camss *camss;
 };
 
 struct resources_ispif;
 
-int msm_ispif_subdev_init(struct ispif_device *ispif,
+int msm_ispif_subdev_init(struct camss *camss,
 			  const struct resources_ispif *res);
 
 int msm_ispif_register_entities(struct ispif_device *ispif,
diff --git a/drivers/media/platform/qcom/camss/camss.c b/drivers/media/platform/qcom/camss/camss.c
index 8fefce57bc49..b966de344b5b 100644
--- a/drivers/media/platform/qcom/camss/camss.c
+++ b/drivers/media/platform/qcom/camss/camss.c
@@ -748,11 +748,13 @@  static int camss_init_subdevices(struct camss *camss)
 		}
 	}
 
-	ret = msm_ispif_subdev_init(&camss->ispif, ispif_res);
-	if (ret < 0) {
-		dev_err(camss->dev, "Failed to init ispif sub-device: %d\n",
+	if (camss->ispif) {
+		ret = msm_ispif_subdev_init(camss, ispif_res);
+		if (ret < 0) {
+			dev_err(camss->dev, "Failed to init ispif sub-device: %d\n",
 			ret);
-		return ret;
+			return ret;
+		}
 	}
 
 	for (i = 0; i < camss->vfe_num; i++) {
@@ -801,11 +803,14 @@  static int camss_register_entities(struct camss *camss)
 		}
 	}
 
-	ret = msm_ispif_register_entities(&camss->ispif, &camss->v4l2_dev);
-	if (ret < 0) {
-		dev_err(camss->dev, "Failed to register ispif entities: %d\n",
+	if (camss->ispif) {
+		ret = msm_ispif_register_entities(camss->ispif,
+						  &camss->v4l2_dev);
+		if (ret < 0) {
+			dev_err(camss->dev, "Failed to register ispif entities: %d\n",
 			ret);
-		goto err_reg_ispif;
+			goto err_reg_ispif;
+		}
 	}
 
 	for (i = 0; i < camss->vfe_num; i++) {
@@ -838,43 +843,64 @@  static int camss_register_entities(struct camss *camss)
 		}
 	}
 
-	for (i = 0; i < camss->csid_num; i++) {
-		for (j = 0; j < camss->ispif.line_num; j++) {
-			ret = media_create_pad_link(
-				&camss->csid[i].subdev.entity,
-				MSM_CSID_PAD_SRC,
-				&camss->ispif.line[j].subdev.entity,
-				MSM_ISPIF_PAD_SINK,
-				0);
-			if (ret < 0) {
-				dev_err(camss->dev,
-					"Failed to link %s->%s entities: %d\n",
-					camss->csid[i].subdev.entity.name,
-					camss->ispif.line[j].subdev.entity.name,
-					ret);
-				goto err_link;
-			}
-		}
-	}
-
-	for (i = 0; i < camss->ispif.line_num; i++)
-		for (k = 0; k < camss->vfe_num; k++)
-			for (j = 0; j < ARRAY_SIZE(camss->vfe[k].line); j++) {
+	if (camss->ispif) {
+		for (i = 0; i < camss->csid_num; i++) {
+			for (j = 0; j < camss->ispif->line_num; j++) {
 				ret = media_create_pad_link(
-					&camss->ispif.line[i].subdev.entity,
-					MSM_ISPIF_PAD_SRC,
-					&camss->vfe[k].line[j].subdev.entity,
-					MSM_VFE_PAD_SINK,
+					&camss->csid[i].subdev.entity,
+					MSM_CSID_PAD_SRC,
+					&camss->ispif->line[j].subdev.entity,
+					MSM_ISPIF_PAD_SINK,
 					0);
 				if (ret < 0) {
 					dev_err(camss->dev,
 						"Failed to link %s->%s entities: %d\n",
-						camss->ispif.line[i].subdev.entity.name,
-						camss->vfe[k].line[j].subdev.entity.name,
+						camss->csid[i].subdev.entity.name,
+						camss->ispif->line[j].subdev.entity.name,
 						ret);
 					goto err_link;
 				}
 			}
+		}
+
+		for (i = 0; i < camss->ispif->line_num; i++)
+			for (k = 0; k < camss->vfe_num; k++)
+				for (j = 0; j < ARRAY_SIZE(camss->vfe[k].line); j++) {
+					ret = media_create_pad_link(
+						&camss->ispif->line[i].subdev.entity,
+						MSM_ISPIF_PAD_SRC,
+						&camss->vfe[k].line[j].subdev.entity,
+						MSM_VFE_PAD_SINK,
+						0);
+					if (ret < 0) {
+						dev_err(camss->dev,
+							"Failed to link %s->%s entities: %d\n",
+							camss->ispif->line[i].subdev.entity.name,
+							camss->vfe[k].line[j].subdev.entity.name,
+							ret);
+						goto err_link;
+					}
+				}
+	} else {
+		for (i = 0; i < camss->csid_num; i++)
+			for (k = 0; k < camss->vfe_num; k++)
+				for (j = 0; j < ARRAY_SIZE(camss->vfe[k].line); j++) {
+					ret = media_create_pad_link(
+						&camss->csid[i].subdev.entity,
+						MSM_CSID_PAD_SRC,
+						&camss->vfe[k].line[j].subdev.entity,
+						MSM_VFE_PAD_SINK,
+						0);
+					if (ret < 0) {
+						dev_err(camss->dev,
+							"Failed to link %s->%s entities: %d\n",
+							camss->csid[i].subdev.entity.name,
+							camss->vfe[k].line[j].subdev.entity.name,
+							ret);
+						goto err_link;
+					}
+				}
+	}
 
 	return 0;
 
@@ -884,8 +910,8 @@  static int camss_register_entities(struct camss *camss)
 	for (i--; i >= 0; i--)
 		msm_vfe_unregister_entities(&camss->vfe[i]);
 
-	msm_ispif_unregister_entities(&camss->ispif);
 err_reg_ispif:
+	msm_ispif_unregister_entities(camss->ispif);
 
 	i = camss->csid_num;
 err_reg_csid:
@@ -916,7 +942,7 @@  static void camss_unregister_entities(struct camss *camss)
 	for (i = 0; i < camss->csid_num; i++)
 		msm_csid_unregister_entity(&camss->csid[i]);
 
-	msm_ispif_unregister_entities(&camss->ispif);
+	msm_ispif_unregister_entities(camss->ispif);
 
 	for (i = 0; i < camss->vfe_num; i++)
 		msm_vfe_unregister_entities(&camss->vfe[i]);
@@ -1047,6 +1073,15 @@  static int camss_probe(struct platform_device *pdev)
 		goto err_free;
 	}
 
+	if (camss->version == CAMSS_8x16 ||
+	    camss->version == CAMSS_8x96) {
+		camss->ispif = devm_kcalloc(dev, 1, sizeof(*camss->ispif), GFP_KERNEL);
+		if (!camss->ispif) {
+			ret = -ENOMEM;
+			goto err_free;
+		}
+	}
+
 	camss->vfe = devm_kcalloc(dev, camss->vfe_num, sizeof(*camss->vfe),
 				  GFP_KERNEL);
 	if (!camss->vfe) {
diff --git a/drivers/media/platform/qcom/camss/camss.h b/drivers/media/platform/qcom/camss/camss.h
index 46e986452824..b7ad8e9f68a8 100644
--- a/drivers/media/platform/qcom/camss/camss.h
+++ b/drivers/media/platform/qcom/camss/camss.h
@@ -79,7 +79,7 @@  struct camss {
 	struct csiphy_device *csiphy;
 	int csid_num;
 	struct csid_device *csid;
-	struct ispif_device ispif;
+	struct ispif_device *ispif;
 	int vfe_num;
 	struct vfe_device *vfe;
 	atomic_t ref_count;