drivers/xen/xen-acpi-pad.c

1 // SPDX-License-Identifier: GPL-2.0-only
3  * xen-acpi-pad.c - Xen pad interface
16 #include <xen/xen-ops.h>
48  * return -1 on failure
54 	int num = -1;  in acpi_pad_pur()  local
57 		return num;  in acpi_pad_pur()
60 		return num;  in acpi_pad_pur()
64 	if (package->type == ACPI_TYPE_PACKAGE &&  in acpi_pad_pur()
65 		package->package.count == 2 &&  in acpi_pad_pur()
66 		package->package.elements[0].integer.value == 1) /* rev 1 */  in acpi_pad_pur()
67 		num = package->package.elements[1].integer.value;  in acpi_pad_pur()
70 	return num;  in acpi_pad_pur()
117 	status = acpi_install_notify_handler(device->handle,  in acpi_pad_add()
120 		return -ENODEV;  in acpi_pad_add()
131 	acpi_remove_notify_handler(device->handle,  in acpi_pad_remove()
143 	.ids = pad_device_ids,
154 		return -ENODEV;  in xen_acpi_pad_init()
158 		return -ENODEV;  in xen_acpi_pad_init()