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media: rockchip: isp: init reserved memory for isp device

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Change-Id: I43744fd48e5791d7788bd1fc69e9870d97b95c3d
Signed-off-by: Jianqun Xu <jay.xu@rock-chips.com>
Signed-off-by: Cai YiWei <cyw@rock-chips.com>
This commit is contained in:
Jianqun Xu
2020-05-26 12:49:28 +08:00
committed by Cai YiWei
parent dfe1c4c263
commit fe9d706bb7
1 changed files with 26 additions and 0 deletions
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26
drivers/media/platform/rockchip/isp/dev.c
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@@ -41,6 +41,7 @@
#include <linux/of_gpio.h>
#include <linux/of_graph.h>
#include <linux/of_platform.h>
#include <linux/of_reserved_mem.h>
#include <linux/pm_runtime.h>
#include <linux/pinctrl/consumer.h>
#include <linux/regmap.h>
@@ -867,6 +868,24 @@ err:
return ret;
}
static inline bool is_iommu_enable(struct device *dev)
{
struct device_node *iommu;
iommu = of_parse_phandle(dev->of_node, "iommus", 0);
if (!iommu) {
dev_info(dev, "no iommu attached, using non-iommu buffers\n");
return false;
} else if (!of_device_is_available(iommu)) {
dev_info(dev, "iommu is disabled, using non-iommu buffers\n");
of_node_put(iommu);
return false;
}
of_node_put(iommu);
return true;
}
static int rkisp_vs_irq_parse(struct platform_device *pdev)
{
int ret;
@@ -1075,6 +1094,13 @@ static int rkisp_plat_probe(struct platform_device *pdev)
if (ret < 0)
goto err_unreg_media_dev;
if (!is_iommu_enable(dev)) {
ret = of_reserved_mem_device_init(dev);
if (ret)
v4l2_warn(v4l2_dev,
"No reserved memory region assign to isp\n");
}
pm_runtime_enable(&pdev->dev);
ret = rkisp_vs_irq_parse(pdev);