X-Git-Url: https://gerrit.opnfv.org/gerrit/gitweb?a=blobdiff_plain;f=kernel%2Fdrivers%2Fgpu%2Fdrm%2Fnouveau%2Fnvkm%2Fengine%2Fdevice%2Facpi.c;fp=kernel%2Fdrivers%2Fgpu%2Fdrm%2Fnouveau%2Fnvkm%2Fengine%2Fdevice%2Facpi.c;h=f42706e1d5dbc95c2e24ee47c75a65ae6603565d;hb=9ca8dbcc65cfc63d6f5ef3312a33184e1d726e00;hp=0000000000000000000000000000000000000000;hpb=98260f3884f4a202f9ca5eabed40b1354c489b29;p=kvmfornfv.git

diff --git a/kernel/drivers/gpu/drm/nouveau/nvkm/engine/device/acpi.c b/kernel/drivers/gpu/drm/nouveau/nvkm/engine/device/acpi.c
new file mode 100644
index 000000000..f42706e1d
--- /dev/null
+++ b/kernel/drivers/gpu/drm/nouveau/nvkm/engine/device/acpi.c
@@ -0,0 +1,60 @@
+/*
+ * 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 <core/device.h>
+
+#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_event_send(&device->event, 1, 0, NULL, 0);
+
+	return NOTIFY_DONE;
+}
+#endif
+
+int
+nvkm_acpi_fini(struct nvkm_device *device, bool suspend)
+{
+#ifdef CONFIG_ACPI
+	unregister_acpi_notifier(&device->acpi.nb);
+#endif
+	return 0;
+}
+
+int
+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
+	return 0;
+}