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video: rockchip: mpp: mpp_iommu_refresh via rockchip_iommu funcs

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reason:
device_links_read_lock/unlock are not export symbols, thus use
rockchip_iommu_disable/enable instead.

Change-Id: I545eced499533383f6cfbdf81e696064f42b6c3e
Signed-off-by: Ding Wei <leo.ding@rock-chips.com>
This commit is contained in:
Ding Wei
2021-10-22 18:11:29 +08:00
committed by Tao Huang
parent 7964bdd1b1
commit ea09729690
1 changed files with 8 additions and 20 deletions
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28
drivers/video/rockchip/mpp/mpp_iommu.c
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@@ -20,7 +20,7 @@
#include <linux/kref.h>
#include <linux/slab.h>
#include <linux/pm_runtime.h>
#include "../../../base/base.h"
#include <soc/rockchip/rockchip_iommu.h>
#include "mpp_debug.h"
#include "mpp_iommu.h"
@@ -460,27 +460,15 @@ int mpp_iommu_remove(struct mpp_iommu_info *info)
int mpp_iommu_refresh(struct mpp_iommu_info *info, struct device *dev)
{
int idx, i;
int usage_count;
struct device_link *link;
struct device *iommu_dev = &info->pdev->dev;
int ret;
idx = device_links_read_lock();
/* disable iommu */
ret = rockchip_iommu_disable(dev);
if (ret)
return ret;
usage_count = atomic_read(&iommu_dev->power.usage_count);
list_for_each_entry_rcu(link, &dev->links.suppliers, c_node) {
for (i = 0; i < usage_count; i++)
pm_runtime_put_sync(link->supplier);
}
list_for_each_entry_rcu(link, &dev->links.suppliers, c_node) {
for (i = 0; i < usage_count; i++)
pm_runtime_get_sync(link->supplier);
}
device_links_read_unlock(idx);
return 0;
/* re-enable iommu */
return rockchip_iommu_enable(dev);
}
int mpp_iommu_flush_tlb(struct mpp_iommu_info *info)