diff options
| author | Nate Watterson <nwatters@codeaurora.org> | 2017-06-30 00:18:15 +0200 |
|---|---|---|
| committer | Will Deacon <will.deacon@arm.com> | 2017-08-16 18:27:28 +0200 |
| commit | 7aa8619a66aea52b145e04cbab4f8d6a4e5f3f3b (patch) | |
| tree | 7aee56a42c2ba42d91fb04b92c21775ec017853a /drivers/iommu/arm-smmu-v3.c | |
| parent | Linux 4.13-rc4 (diff) | |
| download | linux-7aa8619a66aea52b145e04cbab4f8d6a4e5f3f3b.tar.xz linux-7aa8619a66aea52b145e04cbab4f8d6a4e5f3f3b.zip | |
iommu/arm-smmu-v3: Implement shutdown method
The shutdown method disables the SMMU to avoid corrupting a new kernel
started with kexec.
Signed-off-by: Nate Watterson <nwatters@codeaurora.org>
Signed-off-by: Will Deacon <will.deacon@arm.com>
Diffstat (limited to 'drivers/iommu/arm-smmu-v3.c')
| -rw-r--r-- | drivers/iommu/arm-smmu-v3.c | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/drivers/iommu/arm-smmu-v3.c b/drivers/iommu/arm-smmu-v3.c index 568c400eeaed..e67ba6c40faf 100644 --- a/drivers/iommu/arm-smmu-v3.c +++ b/drivers/iommu/arm-smmu-v3.c @@ -2852,9 +2852,15 @@ static int arm_smmu_device_remove(struct platform_device *pdev) struct arm_smmu_device *smmu = platform_get_drvdata(pdev); arm_smmu_device_disable(smmu); + return 0; } +static void arm_smmu_device_shutdown(struct platform_device *pdev) +{ + arm_smmu_device_remove(pdev); +} + static const struct of_device_id arm_smmu_of_match[] = { { .compatible = "arm,smmu-v3", }, { }, @@ -2868,6 +2874,7 @@ static struct platform_driver arm_smmu_driver = { }, .probe = arm_smmu_device_probe, .remove = arm_smmu_device_remove, + .shutdown = arm_smmu_device_shutdown, }; module_platform_driver(arm_smmu_driver); |