From 569ea4ebd4149579c944decdbeb935094b6c683d Mon Sep 17 00:00:00 2001
From: Jianqun Xu <jay.xu@rock-chips.com>
Date: Fri, 15 Apr 2022 13:36:37 +0800
Subject: [PATCH] Revert "Revert "video: rockchip: mpp: use dma-buf-cache
 func""

This reverts commit e8f7a297a7514de09d3312c62795491fa6f5f1dd.

Change-Id: I3b9ab8391312ebcf7496def522cb742e2d7c4036
Signed-off-by: Jianqun Xu <jay.xu@rock-chips.com>
---
 drivers/video/rockchip/mpp/mpp_iommu.c | 8 +++++---
 1 file changed, 5 insertions(+), 3 deletions(-)

diff --git a/drivers/video/rockchip/mpp/mpp_iommu.c b/drivers/video/rockchip/mpp/mpp_iommu.c
index bf3fb43b2883..db98386da6cd 100644
--- a/drivers/video/rockchip/mpp/mpp_iommu.c
+++ b/drivers/video/rockchip/mpp/mpp_iommu.c
@@ -9,7 +9,7 @@
  *
  */
 #include <linux/delay.h>
-#include <linux/dma-buf.h>
+#include <linux/dma-buf-cache.h>
 #include <linux/dma-iommu.h>
 #include <linux/iommu.h>
 #include <linux/of.h>
@@ -245,8 +245,10 @@ struct mpp_dma_buffer *mpp_dma_import_fd(struct mpp_iommu_info *iommu_info,
 	buffer->dma = dma;
 
 	kref_init(&buffer->ref);
-	/* Increase the reference for used outside the buffer pool */
-	kref_get(&buffer->ref);
+
+	if (!IS_ENABLED(CONFIG_DMABUF_CACHE))
+		/* Increase the reference for used outside the buffer pool */
+		kref_get(&buffer->ref);
 
 	mutex_lock(&dma->list_mutex);
 	dma->buffer_count++;