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>
diff --git a/drivers/iommu/arm-smmu.c b/drivers/iommu/arm-smmu.c
index b97188a..b0b126ea 100644
--- a/drivers/iommu/arm-smmu.c
+++ b/drivers/iommu/arm-smmu.c
@@ -2329,6 +2329,11 @@ static int arm_smmu_device_remove(struct platform_device *pdev)
return 0;
}
+static void arm_smmu_device_shutdown(struct platform_device *pdev)
+{
+ arm_smmu_device_remove(pdev);
+}
+
static struct platform_driver arm_smmu_driver = {
.driver = {
.name = "arm-smmu",
@@ -2336,6 +2341,7 @@ 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);