The toshiba_acpi driver needs it and others might as well.
Removing the thinkpad_acpi.c implementation will follow in a separate
patch.
Signed-off-by: Thomas Renninger <trenn@xxxxxxx>
CC: Matthew Garrett <mjg@xxxxxxxxxx>
CC: Len Brown <lenb@xxxxxxxxxx>
CC: linux-acpi@xxxxxxxxxxxxxxx
CC: seth.forshee@xxxxxxxxxxxxx
CC: Azael Avalos <coproscefalo@xxxxxxxxx>
CC: Henrique de Moraes Holschuh <hmh@xxxxxxxxxx>
---
drivers/acpi/osl.c | 25 +++++++++++++++++++++++++
include/linux/acpi.h | 2 ++
2 files changed, 27 insertions(+), 0 deletions(-)
diff --git a/drivers/acpi/osl.c b/drivers/acpi/osl.c
index f31c5c5..4f9f7f5 100644
--- a/drivers/acpi/osl.c
+++ b/drivers/acpi/osl.c
@@ -1659,3 +1659,28 @@ acpi_status acpi_os_terminate(void)
return AE_OK;
}
+
+static acpi_status acpi_handle_locate_callback(acpi_handle handle,
+ u32 level, void *context, void **return_value)
+{
+ *(acpi_handle *)return_value = handle;
+ return AE_CTRL_TERMINATE;
+}
+
+int acpi_handle_locate(const char *hid, acpi_handle *handle)
+{
+ acpi_status status;
+
+ if (!hid || !handle)
+ return -EINVAL;
+
+ memset(handle, 0, sizeof(acpi_handle));
+ status = acpi_get_devices(hid, acpi_handle_locate_callback, NULL,
+ handle);
+
+ if (ACPI_FAILURE(status))
+ return -ENODEV;
+
+ return 0;
+}
+EXPORT_SYMBOL_GPL(acpi_handle_locate);
diff --git a/include/linux/acpi.h b/include/linux/acpi.h
index 6001b4da..d09aca3 100644
--- a/include/linux/acpi.h
+++ b/include/linux/acpi.h
@@ -146,6 +146,8 @@ struct acpi_pci_driver {
int acpi_pci_register_driver(struct acpi_pci_driver *driver);
void acpi_pci_unregister_driver(struct acpi_pci_driver *driver);
+extern int acpi_get_device_handle(const char *hid, acpi_handle *handle);
+
extern int ec_read(u8 addr, u8 *val);
extern int ec_write(u8 addr, u8 val);
extern int ec_transaction(u8 command,
--
1.7.6.1
--
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