83 lines
2.2 KiB
C
83 lines
2.2 KiB
C
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/*
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* Copyright (c) 2015-2016, NVIDIA CORPORATION. All rights reserved.
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms and conditions of the GNU General Public License,
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* version 2, as published by the Free Software Foundation.
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*
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* This program is distributed in the hope it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
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* more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include <linux/module.h>
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#include <linux/of.h>
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#include <linux/of_device.h>
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#include <linux/platform_device.h>
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#include <linux/reset-controller.h>
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#include <linux/slab.h>
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#include <soc/tegra/tegra_bpmp.h>
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#include <dt-bindings/reset/tegra186-reset.h>
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#include "reset.h"
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static int tegra18x_reset_probe(struct platform_device *pdev)
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{
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uint32_t max_id;
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int r;
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r = bpmp_get_max_reset_id(&max_id);
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if (r) {
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/* for backward compatibility */
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return bpmp_register_reset(TEGRA186_RESET_SIZE, pdev);
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}
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return bpmp_register_reset(max_id + 1, pdev);
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}
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static int tegra_reset_probe(struct platform_device *pdev)
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{
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int (*probe)(struct platform_device *);
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probe = of_device_get_match_data(&pdev->dev);
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if (!probe)
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return -ENODEV;
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return probe(pdev);
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}
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static const struct of_device_id tegra_reset_match[] = {
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{ .compatible = "nvidia,tegra18x-car", .data = tegra18x_reset_probe },
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{ .compatible = "nvidia,bpmp-resets", .data = tegra18x_reset_probe },
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{ },
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};
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static struct platform_driver tegra_reset_driver = {
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.probe = tegra_reset_probe,
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.driver = {
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.name = "tegra-reset",
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.owner = THIS_MODULE,
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.of_match_table = tegra_reset_match,
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},
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};
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static int __init tegra_reset_driver_init(void)
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{
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return platform_driver_register(&tegra_reset_driver);
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}
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static void __exit tegra_reset_driver_exit(void)
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{
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platform_driver_unregister(&tegra_reset_driver);
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}
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arch_initcall(tegra_reset_driver_init);
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module_exit(tegra_reset_driver_exit);
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MODULE_AUTHOR("Peter De Schrijver <pdeschrijver@nvidia.com>");
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MODULE_DESCRIPTION("Tegra Reset Controller Driver");
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MODULE_LICENSE("GPL");
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