60 lines
1.4 KiB
C
60 lines
1.4 KiB
C
/*
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* Simple Power-Managed Bus Driver
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*
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* Copyright (C) 2014-2015 Glider bvba
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*
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* This file is subject to the terms and conditions of the GNU General Public
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* License. See the file "COPYING" in the main directory of this archive
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* for more details.
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*/
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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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#include <linux/pm_runtime.h>
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static int simple_pm_bus_probe(struct platform_device *pdev)
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{
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const struct of_dev_auxdata *lookup = dev_get_platdata(&pdev->dev);
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struct device_node *np = pdev->dev.of_node;
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dev_dbg(&pdev->dev, "%s\n", __func__);
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pm_runtime_enable(&pdev->dev);
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if (np)
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of_platform_populate(np, NULL, lookup, &pdev->dev);
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return 0;
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}
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static int simple_pm_bus_remove(struct platform_device *pdev)
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{
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dev_dbg(&pdev->dev, "%s\n", __func__);
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pm_runtime_disable(&pdev->dev);
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return 0;
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}
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static const struct of_device_id simple_pm_bus_of_match[] = {
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{ .compatible = "simple-pm-bus", },
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{ /* sentinel */ }
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};
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MODULE_DEVICE_TABLE(of, simple_pm_bus_of_match);
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static struct platform_driver simple_pm_bus_driver = {
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.probe = simple_pm_bus_probe,
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.remove = simple_pm_bus_remove,
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.driver = {
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.name = "simple-pm-bus",
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.of_match_table = simple_pm_bus_of_match,
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},
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};
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module_platform_driver(simple_pm_bus_driver);
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MODULE_DESCRIPTION("Simple Power-Managed Bus Driver");
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MODULE_AUTHOR("Geert Uytterhoeven <geert+renesas@glider.be>");
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MODULE_LICENSE("GPL v2");
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