[PATCH v3 01/12] iommu/rockchip: Prohibiat unbind and remove
Jeffy Chen
jeffy.chen at rock-chips.com
Wed Jan 17 07:25:31 PST 2018
Removal the IOMMUs cannot be done reliably.
This is similar to exynos iommu driver.
Signed-off-by: Jeffy Chen <jeffy.chen at rock-chips.com>
---
Changes in v3:
Also remove remove() and module_exit() as Tomasz suggested.
Changes in v2: None
drivers/iommu/rockchip-iommu.c | 21 +--------------------
1 file changed, 1 insertion(+), 20 deletions(-)
diff --git a/drivers/iommu/rockchip-iommu.c b/drivers/iommu/rockchip-iommu.c
index 9d991c2d8767..16cd8780c289 100644
--- a/drivers/iommu/rockchip-iommu.c
+++ b/drivers/iommu/rockchip-iommu.c
@@ -1197,18 +1197,6 @@ static int rk_iommu_probe(struct platform_device *pdev)
return err;
}
-static int rk_iommu_remove(struct platform_device *pdev)
-{
- struct rk_iommu *iommu = platform_get_drvdata(pdev);
-
- if (iommu) {
- iommu_device_sysfs_remove(&iommu->iommu);
- iommu_device_unregister(&iommu->iommu);
- }
-
- return 0;
-}
-
static const struct of_device_id rk_iommu_dt_ids[] = {
{ .compatible = "rockchip,iommu" },
{ /* sentinel */ }
@@ -1217,10 +1205,10 @@ MODULE_DEVICE_TABLE(of, rk_iommu_dt_ids);
static struct platform_driver rk_iommu_driver = {
.probe = rk_iommu_probe,
- .remove = rk_iommu_remove,
.driver = {
.name = "rk_iommu",
.of_match_table = rk_iommu_dt_ids,
+ .suppress_bind_attrs = true,
},
};
@@ -1248,14 +1236,7 @@ static int __init rk_iommu_init(void)
platform_driver_unregister(&rk_iommu_domain_driver);
return ret;
}
-static void __exit rk_iommu_exit(void)
-{
- platform_driver_unregister(&rk_iommu_driver);
- platform_driver_unregister(&rk_iommu_domain_driver);
-}
-
subsys_initcall(rk_iommu_init);
-module_exit(rk_iommu_exit);
MODULE_DESCRIPTION("IOMMU API for Rockchip");
MODULE_AUTHOR("Simon Xue <xxm at rock-chips.com> and Daniel Kurtz <djkurtz at chromium.org>");
--
2.11.0
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