59 lines
1.8 KiB
C
59 lines
1.8 KiB
C
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/*
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* Copyright 2014 Red Hat Inc.
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the "Software"),
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* to deal in the Software without restriction, including without limitation
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* the rights to use, copy, modify, merge, publish, distribute, sublicense,
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* and/or sell copies of the Software, and to permit persons to whom the
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* Software is furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
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* OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
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* ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
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* OTHER DEALINGS IN THE SOFTWARE.
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*
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* Authors: Ben Skeggs
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*/
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#include "acpi.h"
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#include <core/device.h>
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#include <subdev/clk.h>
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#ifdef CONFIG_ACPI
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static int
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nvkm_acpi_ntfy(struct notifier_block *nb, unsigned long val, void *data)
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{
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struct nvkm_device *device = container_of(nb, typeof(*device), acpi.nb);
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struct acpi_bus_event *info = data;
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if (!strcmp(info->device_class, "ac_adapter"))
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nvkm_clk_pwrsrc(device);
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return NOTIFY_DONE;
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}
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#endif
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void
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nvkm_acpi_fini(struct nvkm_device *device)
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{
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#ifdef CONFIG_ACPI
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unregister_acpi_notifier(&device->acpi.nb);
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#endif
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}
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void
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nvkm_acpi_init(struct nvkm_device *device)
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{
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#ifdef CONFIG_ACPI
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device->acpi.nb.notifier_call = nvkm_acpi_ntfy;
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register_acpi_notifier(&device->acpi.nb);
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#endif
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}
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