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  • /*
     * Copyright (c) 2016, NVIDIA CORPORATION.
     *
     * SPDX-License-Identifier: GPL-2.0
     */
    
    #include <common.h>
    #include <dm.h>
    #include <dm/lists.h>
    #include <dm/root.h>
    
    /**
     * The CAR exposes multiple different services. We create a sub-device for
     * each separate type of service, since each device must be of the appropriate
     * UCLASS.
     */
    static int tegra_car_bpmp_bind(struct udevice *dev)
    {
    	int ret;
    	struct udevice *child;
    
    	debug("%s(dev=%p)\n", __func__, dev);
    
    	ret = device_bind_driver_to_node(dev, "tegra_car_clk", "tegra_car_clk",
    
    					 dev_of_offset(dev), &child);
    
    	if (ret)
    		return ret;
    
    	ret = device_bind_driver_to_node(dev, "tegra_car_reset",
    
    					 "tegra_car_reset", dev_of_offset(dev),
    
    					 &child);
    	if (ret)
    		return ret;
    
    	return 0;
    }
    
    static int tegra_car_bpmp_probe(struct udevice *dev)
    {
    	debug("%s(dev=%p)\n", __func__, dev);
    
    	return 0;
    }
    
    static int tegra_car_bpmp_remove(struct udevice *dev)
    {
    	debug("%s(dev=%p)\n", __func__, dev);
    
    	return 0;
    }
    
    static const struct udevice_id tegra_car_bpmp_ids[] = {
    	{ .compatible = "nvidia,tegra20-car" },
    	{ .compatible = "nvidia,tegra30-car" },
    	{ .compatible = "nvidia,tegra114-car" },
    	{ .compatible = "nvidia,tegra124-car" },
    	{ .compatible = "nvidia,tegra210-car" },
    	{ }
    };
    
    U_BOOT_DRIVER(tegra_car_bpmp) = {
    	.name		= "tegra_car",
    	.id		= UCLASS_MISC,
    	.of_match	= tegra_car_bpmp_ids,
    	.bind		= tegra_car_bpmp_bind,
    	.probe		= tegra_car_bpmp_probe,
    	.remove		= tegra_car_bpmp_remove,
    };