51 lines
1.2 KiB
C
51 lines
1.2 KiB
C
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// SPDX-License-Identifier: GPL-2.0-only
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/*
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* Copyright (c) 2020 Samsung Electronics Co., Ltd.
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*/
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#include <linux/iommu.h>
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#include <linux/kmemleak.h>
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#include <linux/module.h>
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#include <linux/of_platform.h>
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#include <linux/platform_device.h>
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static int sysmmu_group_device_probe(struct platform_device *pdev)
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{
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struct iommu_group *data;
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struct device *dev = &pdev->dev;
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data = iommu_group_alloc();
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if (IS_ERR(data)) {
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dev_err(dev, "Failed to alloc group, ret:%d\n", PTR_ERR(data));
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return PTR_ERR(data);
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}
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platform_set_drvdata(pdev, data);
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iommu_group_set_name(data, dev->of_node->name);
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dev_info(dev, "Initialized IOMMU group[%s]\n", dev->of_node->name);
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return 0;
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}
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static void sysmmu_group_device_shutdown(struct platform_device *pdev)
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{
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}
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static const struct of_device_id sysmmu_group_of_match[] = {
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{ .compatible = "samsung,sysmmu-group" },
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{ }
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};
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static struct platform_driver sysmmu_group_driver = {
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.driver = {
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.name = "sysmmu-group",
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.of_match_table = of_match_ptr(sysmmu_group_of_match),
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.suppress_bind_attrs = true,
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},
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.probe = sysmmu_group_device_probe,
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.shutdown = sysmmu_group_device_shutdown,
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};
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module_platform_driver(sysmmu_group_driver);
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MODULE_LICENSE("GPL v2");
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