Messages in this thread Patch in this message | | | From | Lu Baolu <> | Subject | [PATCH v4 13/19] iommu/mtk_v1: Add set_platform_dma_ops callback | Date | Wed, 4 Jan 2023 20:57:19 +0800 |
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This IOMMU driver doesn't support default domain. Add the implementation of set_platform_dma_ops callback so that the IOMMU core could return the DMA control. With the set_platform_dma_ops implemented, there's no need for detach_dev. Remove it to avoid dead code.
Signed-off-by: Lu Baolu <baolu.lu@linux.intel.com> --- drivers/iommu/mtk_iommu_v1.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/iommu/mtk_iommu_v1.c b/drivers/iommu/mtk_iommu_v1.c index 69682ee068d2..78d0a84c704f 100644 --- a/drivers/iommu/mtk_iommu_v1.c +++ b/drivers/iommu/mtk_iommu_v1.c @@ -319,7 +319,7 @@ static int mtk_iommu_v1_attach_device(struct iommu_domain *domain, struct device return 0; } -static void mtk_iommu_v1_detach_device(struct iommu_domain *domain, struct device *dev) +static void mtk_iommu_v1_set_platform_dma(struct device *dev) { struct mtk_iommu_v1_data *data = dev_iommu_priv_get(dev); @@ -585,10 +585,10 @@ static const struct iommu_ops mtk_iommu_v1_ops = { .def_domain_type = mtk_iommu_v1_def_domain_type, .device_group = generic_device_group, .pgsize_bitmap = MT2701_IOMMU_PAGE_SIZE, + .set_platform_dma_ops = mtk_iommu_v1_set_platform_dma, .owner = THIS_MODULE, .default_domain_ops = &(const struct iommu_domain_ops) { .attach_dev = mtk_iommu_v1_attach_device, - .detach_dev = mtk_iommu_v1_detach_device, .map_pages = mtk_iommu_v1_map, .unmap_pages = mtk_iommu_v1_unmap, .iova_to_phys = mtk_iommu_v1_iova_to_phys, -- 2.34.1
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