From: "Rafael J. Wysocki" <rafael.j.wysocki@intel.com>
Date: Mon, 4 Apr 2022 17:21:50 +0200
Subject: ACPI: bus: Introduce acpi_dev_for_each_child()
Patch-mainline: v5.19-rc1
Git-commit: cf6ba0750a22a54f5101986401271429995cc4a0
References: jsc#PED-1408

Introduce a wrapper around device_for_each_child() to iterate over
the children of a given ACPI device object.

This function will be used in subsequent change sets.

Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Reviewed-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Acked-by: Lee, Chun-Yi <jlee@suse.com>
---
 drivers/acpi/bus.c      |    6 ++++++
 include/acpi/acpi_bus.h |    2 ++
 2 files changed, 8 insertions(+)

--- a/drivers/acpi/bus.c
+++ b/drivers/acpi/bus.c
@@ -1070,6 +1070,12 @@ int acpi_bus_for_each_dev(int (*fn)(stru
 }
 EXPORT_SYMBOL_GPL(acpi_bus_for_each_dev);
 
+int acpi_dev_for_each_child(struct acpi_device *adev,
+			    int (*fn)(struct device *, void *), void *data)
+{
+	return device_for_each_child(&adev->dev, data, fn);
+}
+
 /* --------------------------------------------------------------------------
                              Initialization/Cleanup
    -------------------------------------------------------------------------- */
--- a/include/acpi/acpi_bus.h
+++ b/include/acpi/acpi_bus.h
@@ -481,6 +481,8 @@ void acpi_initialize_hp_context(struct a
 extern struct bus_type acpi_bus_type;
 
 int acpi_bus_for_each_dev(int (*fn)(struct device *, void *), void *data);
+int acpi_dev_for_each_child(struct acpi_device *adev,
+			    int (*fn)(struct device *, void *), void *data);
 
 /*
  * Events