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>
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@ -2852,9 +2852,15 @@ static int arm_smmu_device_remove(struct platform_device *pdev)
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struct arm_smmu_device *smmu = platform_get_drvdata(pdev);
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struct arm_smmu_device *smmu = platform_get_drvdata(pdev);
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arm_smmu_device_disable(smmu);
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arm_smmu_device_disable(smmu);
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return 0;
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return 0;
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}
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}
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static void arm_smmu_device_shutdown(struct platform_device *pdev)
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{
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arm_smmu_device_remove(pdev);
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}
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static const struct of_device_id arm_smmu_of_match[] = {
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static const struct of_device_id arm_smmu_of_match[] = {
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{ .compatible = "arm,smmu-v3", },
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{ .compatible = "arm,smmu-v3", },
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{ },
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{ },
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@ -2868,6 +2874,7 @@ static struct platform_driver arm_smmu_driver = {
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},
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},
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.probe = arm_smmu_device_probe,
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.probe = arm_smmu_device_probe,
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.remove = arm_smmu_device_remove,
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.remove = arm_smmu_device_remove,
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.shutdown = arm_smmu_device_shutdown,
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};
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};
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module_platform_driver(arm_smmu_driver);
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module_platform_driver(arm_smmu_driver);
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@ -2329,6 +2329,11 @@ static int arm_smmu_device_remove(struct platform_device *pdev)
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return 0;
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return 0;
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}
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}
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static void arm_smmu_device_shutdown(struct platform_device *pdev)
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{
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arm_smmu_device_remove(pdev);
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}
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static struct platform_driver arm_smmu_driver = {
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static struct platform_driver arm_smmu_driver = {
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.driver = {
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.driver = {
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.name = "arm-smmu",
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.name = "arm-smmu",
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@ -2336,6 +2341,7 @@ static struct platform_driver arm_smmu_driver = {
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},
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},
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.probe = arm_smmu_device_probe,
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.probe = arm_smmu_device_probe,
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.remove = arm_smmu_device_remove,
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.remove = arm_smmu_device_remove,
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.shutdown = arm_smmu_device_shutdown,
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};
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};
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module_platform_driver(arm_smmu_driver);
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module_platform_driver(arm_smmu_driver);
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