2874c5fd28
Based on 1 normalized pattern(s): this program is free software you can redistribute it and or modify it under the terms of the gnu general public license as published by the free software foundation either version 2 of the license or at your option any later version extracted by the scancode license scanner the SPDX license identifier GPL-2.0-or-later has been chosen to replace the boilerplate/reference in 3029 file(s). Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Allison Randal <allison@lohutok.net> Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190527070032.746973796@linutronix.de Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
90 lines
2 KiB
C
90 lines
2 KiB
C
// SPDX-License-Identifier: GPL-2.0-or-later
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/*
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* dummy.c
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*
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* Copyright 2010 Wolfson Microelectronics PLC.
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*
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* Author: Mark Brown <broonie@opensource.wolfsonmicro.com>
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*
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* This is useful for systems with mixed controllable and
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* non-controllable regulators, as well as for allowing testing on
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* systems with no controllable regulators.
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*/
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#include <linux/err.h>
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#include <linux/export.h>
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#include <linux/platform_device.h>
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#include <linux/regulator/driver.h>
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#include <linux/regulator/machine.h>
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#include "dummy.h"
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struct regulator_dev *dummy_regulator_rdev;
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static struct regulator_init_data dummy_initdata = {
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.constraints = {
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.always_on = 1,
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},
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};
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static struct regulator_ops dummy_ops;
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static const struct regulator_desc dummy_desc = {
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.name = "regulator-dummy",
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.id = -1,
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.type = REGULATOR_VOLTAGE,
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.owner = THIS_MODULE,
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.ops = &dummy_ops,
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};
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static int dummy_regulator_probe(struct platform_device *pdev)
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{
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struct regulator_config config = { };
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int ret;
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config.dev = &pdev->dev;
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config.init_data = &dummy_initdata;
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dummy_regulator_rdev = regulator_register(&dummy_desc, &config);
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if (IS_ERR(dummy_regulator_rdev)) {
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ret = PTR_ERR(dummy_regulator_rdev);
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pr_err("Failed to register regulator: %d\n", ret);
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return ret;
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}
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return 0;
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}
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static struct platform_driver dummy_regulator_driver = {
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.probe = dummy_regulator_probe,
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.driver = {
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.name = "reg-dummy",
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},
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};
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static struct platform_device *dummy_pdev;
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void __init regulator_dummy_init(void)
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{
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int ret;
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dummy_pdev = platform_device_alloc("reg-dummy", -1);
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if (!dummy_pdev) {
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pr_err("Failed to allocate dummy regulator device\n");
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return;
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}
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ret = platform_device_add(dummy_pdev);
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if (ret != 0) {
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pr_err("Failed to register dummy regulator device: %d\n", ret);
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platform_device_put(dummy_pdev);
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return;
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}
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ret = platform_driver_register(&dummy_regulator_driver);
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if (ret != 0) {
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pr_err("Failed to register dummy regulator driver: %d\n", ret);
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platform_device_unregister(dummy_pdev);
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}
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}
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