From 2c3c1048746a4622d8c89a29670120dc8fab93c4 Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Sun, 7 Apr 2024 20:49:45 +0200 Subject: Adding upstream version 6.1.76. Signed-off-by: Daniel Baumann --- drivers/gpu/drm/nouveau/nvkm/engine/device/acpi.c | 58 +++++++++++++++++++++++ 1 file changed, 58 insertions(+) create mode 100644 drivers/gpu/drm/nouveau/nvkm/engine/device/acpi.c (limited to 'drivers/gpu/drm/nouveau/nvkm/engine/device/acpi.c') diff --git a/drivers/gpu/drm/nouveau/nvkm/engine/device/acpi.c b/drivers/gpu/drm/nouveau/nvkm/engine/device/acpi.c new file mode 100644 index 000000000..c948a0dc9 --- /dev/null +++ b/drivers/gpu/drm/nouveau/nvkm/engine/device/acpi.c @@ -0,0 +1,58 @@ +/* + * Copyright 2014 Red Hat Inc. + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the "Software"), + * to deal in the Software without restriction, including without limitation + * the rights to use, copy, modify, merge, publish, distribute, sublicense, + * and/or sell copies of the Software, and to permit persons to whom the + * Software is furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included in + * all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR + * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, + * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR + * OTHER DEALINGS IN THE SOFTWARE. + * + * Authors: Ben Skeggs + */ +#include "acpi.h" + +#include +#include + +#ifdef CONFIG_ACPI +static int +nvkm_acpi_ntfy(struct notifier_block *nb, unsigned long val, void *data) +{ + struct nvkm_device *device = container_of(nb, typeof(*device), acpi.nb); + struct acpi_bus_event *info = data; + + if (!strcmp(info->device_class, "ac_adapter")) + nvkm_clk_pwrsrc(device); + + return NOTIFY_DONE; +} +#endif + +void +nvkm_acpi_fini(struct nvkm_device *device) +{ +#ifdef CONFIG_ACPI + unregister_acpi_notifier(&device->acpi.nb); +#endif +} + +void +nvkm_acpi_init(struct nvkm_device *device) +{ +#ifdef CONFIG_ACPI + device->acpi.nb.notifier_call = nvkm_acpi_ntfy; + register_acpi_notifier(&device->acpi.nb); +#endif +} -- cgit v1.2.3