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2ce8284c31
The DT of_device.h and of_platform.h date back to the separate of_platform_bus_type before it as merged into the regular platform bus. As part of that merge prepping Arm DT support 13 years ago, they "temporarily" include each other. They also include platform_device.h and of.h. As a result, there's a pretty much random mix of those include files used throughout the tree. In order to detangle these headers and replace the implicit includes with struct declarations, users need to explicitly include the correct includes. Acked-by: David Lechner <david@lechnology.com> Signed-off-by: Rob Herring <robh@kernel.org> Reviewed-by: Simon Glass <sjg@chromium.org> Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
86 lines
2.0 KiB
C
86 lines
2.0 KiB
C
// SPDX-License-Identifier: GPL-2.0-only
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/*
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* Power off driver for ams AS3722 device.
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*
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* Copyright (c) 2013, NVIDIA CORPORATION. All rights reserved.
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*
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* Author: Laxman Dewangan <ldewangan@nvidia.com>
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*/
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#include <linux/mfd/as3722.h>
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#include <linux/module.h>
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#include <linux/of.h>
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#include <linux/platform_device.h>
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#include <linux/slab.h>
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struct as3722_poweroff {
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struct device *dev;
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struct as3722 *as3722;
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};
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static struct as3722_poweroff *as3722_pm_poweroff;
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static void as3722_pm_power_off(void)
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{
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int ret;
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if (!as3722_pm_poweroff) {
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pr_err("AS3722 poweroff is not initialised\n");
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return;
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}
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ret = as3722_update_bits(as3722_pm_poweroff->as3722,
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AS3722_RESET_CONTROL_REG, AS3722_POWER_OFF, AS3722_POWER_OFF);
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if (ret < 0)
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dev_err(as3722_pm_poweroff->dev,
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"RESET_CONTROL_REG update failed, %d\n", ret);
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}
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static int as3722_poweroff_probe(struct platform_device *pdev)
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{
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struct as3722_poweroff *as3722_poweroff;
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struct device_node *np = pdev->dev.parent->of_node;
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if (!np)
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return -EINVAL;
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if (!of_property_read_bool(np, "ams,system-power-controller"))
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return 0;
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as3722_poweroff = devm_kzalloc(&pdev->dev, sizeof(*as3722_poweroff),
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GFP_KERNEL);
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if (!as3722_poweroff)
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return -ENOMEM;
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as3722_poweroff->as3722 = dev_get_drvdata(pdev->dev.parent);
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as3722_poweroff->dev = &pdev->dev;
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as3722_pm_poweroff = as3722_poweroff;
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if (!pm_power_off)
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pm_power_off = as3722_pm_power_off;
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return 0;
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}
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static int as3722_poweroff_remove(struct platform_device *pdev)
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{
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if (pm_power_off == as3722_pm_power_off)
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pm_power_off = NULL;
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as3722_pm_poweroff = NULL;
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return 0;
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}
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static struct platform_driver as3722_poweroff_driver = {
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.driver = {
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.name = "as3722-power-off",
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},
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.probe = as3722_poweroff_probe,
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.remove = as3722_poweroff_remove,
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};
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module_platform_driver(as3722_poweroff_driver);
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MODULE_DESCRIPTION("Power off driver for ams AS3722 PMIC Device");
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MODULE_ALIAS("platform:as3722-power-off");
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MODULE_AUTHOR("Laxman Dewangan <ldewangan@nvidia.com>");
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