[PATCH 4/3] iommu/exynos: Prepare for deferred probe support
From: m.szyprowski@samsung.com (Marek Szyprowski)
Date: 2016-05-23 11:01:27
Also in:
linux-iommu, linux-samsung-soc
Subsystem:
exynos sysmmu (iommu) driver, iommu subsystem, the rest · Maintainers:
Marek Szyprowski, Joerg Roedel, Will Deacon, Linus Torvalds
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> --- I'm sorry for the confussing patch number. This patch got lost while rebasing, but it should belong to the "Exynos IOMMU: improve clock management" patchset. Best regards Marek Szyprowski Samsung R&D Institute Poland --- drivers/iommu/exynos-iommu.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-)
diff --git a/drivers/iommu/exynos-iommu.c b/drivers/iommu/exynos-iommu.c
index e0b834375f17..633e6d023c0d 100644
--- a/drivers/iommu/exynos-iommu.c
+++ b/drivers/iommu/exynos-iommu.c@@ -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; }
--
1.9.2