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iommu/mediatek: Add list_del in mtk_iommu_remove
Lack the list_del in the mtk_iommu_remove, and remove
bus_set_iommu(*, NULL) since there may be several iommu HWs.
we can not bus_set_iommu null when one iommu driver unbind.
This could be a fix for mt2712 which support 2 M4U HW and list them.
Fixes: 7c3a2ec028
("iommu/mediatek: Merge 2 M4U HWs into one iommu domain")
Signed-off-by: Yong Wu <yong.wu@mediatek.com>
Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Reviewed-by: Matthias Brugger <matthias.bgg@gmail.com>
Link: https://lore.kernel.org/r/20220503071427.2285-6-yong.wu@mediatek.com
Signed-off-by: Joerg Roedel <jroedel@suse.de>
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1 changed files with 1 additions and 2 deletions
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@ -955,8 +955,7 @@ static int mtk_iommu_remove(struct platform_device *pdev)
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iommu_device_sysfs_remove(&data->iommu);
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iommu_device_unregister(&data->iommu);
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if (iommu_present(&platform_bus_type))
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bus_set_iommu(&platform_bus_type, NULL);
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list_del(&data->list);
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clk_disable_unprepare(data->bclk);
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device_link_remove(data->smicomm_dev, &pdev->dev);
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