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