ACPI: EC: Fix "no battery" regression
Restore deleted call to register query methods.
http://bugzilla.kernel.org/show_bug.cgi?id=8886
Signed-off-by: Alexey Starikovskiy <astarikovskiy@suse.de>
Signed-off-by: Len Brown <len.brown@intel.com>
diff --git a/drivers/acpi/ec.c b/drivers/acpi/ec.c
index 2300d81..56bee9e 100644
--- a/drivers/acpi/ec.c
+++ b/drivers/acpi/ec.c
@@ -652,6 +652,19 @@
}
static acpi_status
+acpi_ec_register_query_methods(acpi_handle handle, u32 level,
+ void *context, void **return_value)
+{
+ struct acpi_namespace_node *node = handle;
+ struct acpi_ec *ec = context;
+ int value = 0;
+ if (sscanf(node->name.ascii, "_Q%x", &value) == 1) {
+ acpi_ec_add_query_handler(ec, value, handle, NULL, NULL);
+ }
+ return AE_OK;
+}
+
+static acpi_status
ec_parse_device(acpi_handle handle, u32 Level, void *context, void **retval)
{
acpi_status status;
@@ -668,6 +681,10 @@
if (ACPI_FAILURE(status))
return status;
+ /* Find and register all query methods */
+ acpi_walk_namespace(ACPI_TYPE_METHOD, handle, 1,
+ acpi_ec_register_query_methods, ec, NULL);
+
/* Use the global lock for all EC transactions? */
acpi_evaluate_integer(handle, "_GLK", NULL, &ec->global_lock);