diff --git a/drivers/media/platform/mtk-mipicsi/mtk_mipicsi.c b/drivers/media/platform/mtk-mipicsi/mtk_mipicsi.c
index 44c01c8d566b..af5655345754 100644
--- a/drivers/media/platform/mtk-mipicsi/mtk_mipicsi.c
+++ b/drivers/media/platform/mtk-mipicsi/mtk_mipicsi.c
@@ -36,6 +36,7 @@
 #include <linux/pm_runtime.h>
 #include <linux/iommu.h>
 #include <linux/of.h>
+#include <linux/of_irq.h>
 #include <linux/of_platform.h>
 #include <media/v4l2-common.h>
 #include <media/v4l2-dev.h>
@@ -93,6 +94,8 @@
 #define CAMSV_MODULE_EN					0x10
 #define CAMSV_FMT_SEL					0x14
 #define CAMSV_INT_EN					0x18
+#define CAMSV_INT_STATUS				0x1C
+#define PASS1_DONE_STATUS				10
 #define CAMSV_SW_CTL					0x20
 #define CAMSV_CLK_EN					0x30
 
@@ -122,6 +125,8 @@ struct mtk_mipicsi_dev {
 	struct platform_device *pdev;
 	unsigned int camsv_num;
 	struct device *larb_pdev;
+	unsigned int		irq[MTK_CAMDMA_MAX_NUM];
+	bool irq_status[MTK_CAMDMA_MAX_NUM];
 	void __iomem		*ana;
 	void __iomem		*seninf_ctrl;
 	void __iomem		*seninf;
@@ -132,6 +137,7 @@ struct mtk_mipicsi_dev {
 	spinlock_t		lock;
 	spinlock_t		queue_lock;
 	struct mtk_mipicsi_buf	cam_buf[MAX_BUFFER_NUM];
+	bool			is_enable_irq[MTK_CAMDMA_MAX_NUM];
 	bool streamon;
 	unsigned int link;
 	u8 link_reg_val;
@@ -911,9 +917,96 @@ static const struct dev_pm_ops mtk_mipicsi_pm = {
 		mtk_mipicsi_pm_resume, NULL)
 };
 
+static int get_irq_channel(struct mtk_mipicsi_dev *mipicsi)
+{
+	int ch;
+	u32 int_reg_val;
+
+	for (ch = 0; ch < mipicsi->camsv_num; ++ch) {
+		int_reg_val = readl(mipicsi->camsv[ch] + CAMSV_INT_STATUS);
+		if ((int_reg_val & (1UL << PASS1_DONE_STATUS)) != 0UL)
+			return ch;
+	}
+
+	return -1;
+}
+
+static void mtk_mipicsi_irq_buf_process(struct mtk_mipicsi_dev *mipicsi)
+{
+	unsigned int i = 0U;
+	struct mtk_mipicsi_buf *new_cam_buf = NULL;
+	struct mtk_mipicsi_buf *tmp = NULL;
+	unsigned int index = 0U;
+	unsigned int next = 0U;
+
+	for (i = 0U; i < MTK_CAMDMA_MAX_NUM; ++i)
+		mipicsi->irq_status[i] = false;
+
+	i = 0;
+
+	/* only one buffer left */
+	if ((&(mipicsi->fb_list))->next->next == &(mipicsi->fb_list))
+		return;
+
+	/*for each fb_lst 2 times to get the top 2 buffer.*/
+	list_for_each_entry_safe(new_cam_buf, tmp,
+		&(mipicsi->fb_list), queue) {
+		if (i == 0U) {
+			index = new_cam_buf->vb->index;
+		} else {
+			next = new_cam_buf->vb->index;
+			break;
+		}
+		++i;
+	}
+
+	/*
+	 * fb_list has one more buffer. Free the first buffer to user
+	 * and fill the second buffer to HW.
+	 */
+	vb2_buffer_done(mipicsi->cam_buf[index].vb,
+		VB2_BUF_STATE_DONE);
+
+	list_del_init(&(mipicsi->cam_buf[index].queue));
+}
+
+static irqreturn_t mtk_mipicsi_isr(int irq, void *data)
+{
+
+	struct mtk_mipicsi_dev *mipicsi = data;
+	unsigned long flags = 0;
+	int isr_ch;
+	u8 irq_cnt = 0, i = 0;
+
+	spin_lock_irqsave(&mipicsi->lock, flags);
+
+	isr_ch = get_irq_channel(mipicsi);
+	if (isr_ch < 0) {
+		spin_unlock_irqrestore(&mipicsi->lock, flags);
+		return IRQ_HANDLED;
+	}
+
+	/* clear interrupt */
+	writel(1UL << PASS1_DONE_STATUS,
+		mipicsi->camsv[isr_ch] + CAMSV_INT_STATUS);
+	mipicsi->irq_status[isr_ch] = true;
+	for (i = 0U; i < MTK_CAMDMA_MAX_NUM; ++i) {
+		if (mipicsi->irq_status[i])
+			++irq_cnt;
+	}
+
+	if (irq_cnt == mipicsi->link)
+		mtk_mipicsi_irq_buf_process(mipicsi);
+	spin_unlock_irqrestore(&mipicsi->lock, flags);
+
+	return IRQ_HANDLED;
+}
+
 static int seninf_mux_camsv_node_parse(struct mtk_mipicsi_dev *mipicsi,
 		int index)
 {
+	int ret;
+	int irq;
 	struct clk *clk = NULL;
 	struct device *dev = NULL;
 	struct resource *res = NULL;
@@ -951,6 +1044,23 @@ static int seninf_mux_camsv_node_parse(struct mtk_mipicsi_dev *mipicsi,
 	}
 	mipicsi->clk[index] = clk;
 
+	irq = of_irq_get(np, 0);
+	if (irq <= 0) {
+		dev_err(dev, "get irq fail in %s node\n", np->full_name);
+		return -ENODEV;
+	}
+	mipicsi->irq[index] = irq;
+
+	ret = devm_request_irq(dev, irq,
+			mtk_mipicsi_isr, 0,
+			mipicsi->drv_name, mipicsi);
+	if (ret != 0) {
+		dev_err(dev, "%s irq register failed\n", np->full_name);
+		return -ENODEV;
+	}
+	disable_irq(mipicsi->irq[index]);
+	mipicsi->irq_status[index] = false;
+
 	res = platform_get_resource(camdma_pdev, IORESOURCE_MEM, 0);
 	if (res == NULL) {
 		dev_err(dev, "get seninf_mux memory failed in %s node\n",
