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authorNate Watterson <nwatters@codeaurora.org>2017-06-29 18:18:15 -0400
committerWill Deacon <will.deacon@arm.com>2017-08-16 17:27:28 +0100
commit7aa8619a66aea52b145e04cbab4f8d6a4e5f3f3b (patch)
tree7aee56a42c2ba42d91fb04b92c21775ec017853a /drivers/iommu/arm-smmu-v3.c
parentaae4e7a8bc44722fe70d58920a36916b1043195e (diff)
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.c7
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);