Add set_platform_dma_ops() required for proper driver operation on ARM
32bit arch after recent changes in the IOMMU framework (detach ops
removal).
Fixes: c1fe9119ee70 ("iommu: Add set_platform_dma_ops callbacks")
Signed-off-by: Marek Szyprowski <m.szyprowski@xxxxxxxxxxx>
---
drivers/iommu/exynos-iommu.c | 5 +++++
1 file changed, 5 insertions(+)
diff --git a/drivers/iommu/exynos-iommu.c b/drivers/iommu/exynos-iommu.c
index 6fc58e89712f..c4955d045855 100644
--- a/drivers/iommu/exynos-iommu.c
+++ b/drivers/iommu/exynos-iommu.c
@@ -1346,8 +1346,10 @@ static void exynos_iommu_release_device(struct device *dev)
struct iommu_group *group = iommu_group_get(dev);
if (group) {
+#ifndef CONFIG_ARM
WARN_ON(owner->domain !=
iommu_group_default_domain(group));
+#endif
exynos_iommu_detach_device(owner->domain, dev);
iommu_group_put(group);
}
@@ -1398,6 +1400,9 @@ static int exynos_iommu_of_xlate(struct device *dev,
static const struct iommu_ops exynos_iommu_ops = {
.domain_alloc = exynos_iommu_domain_alloc,
.device_group = generic_device_group,
+#ifdef CONFIG_ARM
+ .set_platform_dma_ops = exynos_iommu_release_device,
+#endif
.probe_device = exynos_iommu_probe_device,
.release_device = exynos_iommu_release_device,
.pgsize_bitmap = SECT_SIZE | LPAGE_SIZE | SPAGE_SIZE,
--
2.39.0
