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iommu/exynos: Prepare for deferred probe support 

Register iommu_ops at the end of successful probe instead of doing that
unconditionally. This makes Exynos IOMMU driver ready for deferred probe
caused by not-yet-available clocks.

Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Signed-off-by: Joerg Roedel <jroedel@suse.de>
This commit is contained in:
Marek Szyprowski 2016-05-23 13:01:27 +02:00 committed by Joerg Roedel
parent fecc49db88
commit 96f6655700
1 changed files with 4 additions and 1 deletions
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5
drivers/iommu/exynos-iommu.c
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@ -581,6 +581,8 @@ static void sysmmu_tlb_invalidate_entry(struct sysmmu_drvdata *data,
spin_unlock_irqrestore(&data->lock, flags);
}
static struct iommu_ops exynos_iommu_ops;
static int __init exynos_sysmmu_probe(struct platform_device *pdev)
{
int irq, ret;
@ -654,6 +656,8 @@ static int __init exynos_sysmmu_probe(struct platform_device *pdev)
pm_runtime_enable(dev);
of_iommu_set_ops(dev->of_node, &exynos_iommu_ops);
return 0;
}
@ -1347,7 +1351,6 @@ static int __init exynos_iommu_of_setup(struct device_node *np)
if (!dma_dev)
dma_dev = &pdev->dev;
of_iommu_set_ops(np, &exynos_iommu_ops);
return 0;
}