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media: rockchip: rkcif: support get continuous memory from specific CMA region

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If no IOMMU support for CIF, we prefer to alloc continuous
physical memory from our reserved CMA region than from system
reserved.

Change-Id: Icbe1f206593ffc10eba96e12f77f499455dbcd55
Signed-off-by: Zhong Yichong <zyc@rock-chips.com>
This commit is contained in:
ZhongYiChong 2018-09-14 11:12:00 +08:00 committed by Tao Huang
parent a0568cbcb7
commit 628af73a51
1 changed files with 9 additions and 1 deletions
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10
drivers/media/platform/rockchip/cif/dev.c
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@ -12,6 +12,7 @@
#include <linux/of.h>
#include <linux/of_graph.h>
#include <linux/of_platform.h>
#include <linux/of_reserved_mem.h>
#include <linux/reset.h>
#include <linux/pm_runtime.h>
#include <linux/pinctrl/consumer.h>
@ -486,8 +487,15 @@ static int rkcif_plat_probe(struct platform_device *pdev)
goto err_unreg_media_dev;
cif_dev->iommu_en = is_iommu_enable(dev);
if (cif_dev->iommu_en)
if (cif_dev->iommu_en) {
rkcif_iommu_init(cif_dev);
} else {
ret = of_reserved_mem_device_init(dev);
if (ret)
v4l2_warn(v4l2_dev,
"No reserved memory region assign to CIF\n");
}
pm_runtime_enable(&pdev->dev);
return 0;