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path: root/drivers/iommu/rockchip-iommu.c
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Diffstat (limited to 'drivers/iommu/rockchip-iommu.c')
-rw-r--r--drivers/iommu/rockchip-iommu.c12
1 files changed, 1 insertions, 11 deletions
diff --git a/drivers/iommu/rockchip-iommu.c b/drivers/iommu/rockchip-iommu.c
index 9febfb7f3025..5cb260820eda 100644
--- a/drivers/iommu/rockchip-iommu.c
+++ b/drivers/iommu/rockchip-iommu.c
@@ -10,7 +10,6 @@
#include <linux/compiler.h>
#include <linux/delay.h>
#include <linux/device.h>
-#include <linux/dma-iommu.h>
#include <linux/dma-mapping.h>
#include <linux/errno.h>
#include <linux/interrupt.h>
@@ -1074,10 +1073,6 @@ static struct iommu_domain *rk_iommu_domain_alloc(unsigned type)
if (!rk_domain)
return NULL;
- if (type == IOMMU_DOMAIN_DMA &&
- iommu_get_dma_cookie(&rk_domain->domain))
- goto err_free_domain;
-
/*
* rk32xx iommus use a 2 level pagetable.
* Each level1 (dt) and level2 (pt) table has 1024 4-byte entries.
@@ -1085,7 +1080,7 @@ static struct iommu_domain *rk_iommu_domain_alloc(unsigned type)
*/
rk_domain->dt = (u32 *)get_zeroed_page(GFP_KERNEL | GFP_DMA32);
if (!rk_domain->dt)
- goto err_put_cookie;
+ goto err_free_domain;
rk_domain->dt_dma = dma_map_single(dma_dev, rk_domain->dt,
SPAGE_SIZE, DMA_TO_DEVICE);
@@ -1106,9 +1101,6 @@ static struct iommu_domain *rk_iommu_domain_alloc(unsigned type)
err_free_dt:
free_page((unsigned long)rk_domain->dt);
-err_put_cookie:
- if (type == IOMMU_DOMAIN_DMA)
- iommu_put_dma_cookie(&rk_domain->domain);
err_free_domain:
kfree(rk_domain);
@@ -1137,8 +1129,6 @@ static void rk_iommu_domain_free(struct iommu_domain *domain)
SPAGE_SIZE, DMA_TO_DEVICE);
free_page((unsigned long)rk_domain->dt);
- if (domain->type == IOMMU_DOMAIN_DMA)
- iommu_put_dma_cookie(&rk_domain->domain);
kfree(rk_domain);
}