Some products in the field, like Intel Rocket Lake systems, contain
AML code that can modify _DSD properties after they have been
evaluated by ACPI init code. Therefore, there is a need for drivers
to be able to reevaluate _DSDs so that the updated property values can
be read. Export acpi_init_properties() for this purpose.
Signed-off-by: Michael Bottini <michael.a.bottini@xxxxxxxxxxxxxxx>
---
drivers/acpi/property.c | 1 +
include/linux/acpi.h | 6 ++++++
2 files changed, 7 insertions(+)
diff --git a/drivers/acpi/property.c b/drivers/acpi/property.c
index e312ebaed8db..2c1f8cf1a8f0 100644
--- a/drivers/acpi/property.c
+++ b/drivers/acpi/property.c
@@ -432,6 +432,7 @@ void acpi_init_properties(struct acpi_device *adev)
if (!adev->data.pointer)
acpi_extract_apple_properties(adev);
}
+EXPORT_SYMBOL(acpi_init_properties);
static void acpi_destroy_nondev_subnodes(struct list_head *list)
{
diff --git a/include/linux/acpi.h b/include/linux/acpi.h
index 72e4f7fd268c..57defc3bc9b9 100644
--- a/include/linux/acpi.h
+++ b/include/linux/acpi.h
@@ -716,6 +716,8 @@ static inline u64 acpi_arch_get_root_pointer(void)
int acpi_get_local_address(acpi_handle handle, u32 *addr);
+void acpi_init_properties(struct acpi_device *adev);
+
#else /* !CONFIG_ACPI */
#define acpi_disabled 1
@@ -976,6 +978,10 @@ static inline int acpi_get_local_address(acpi_handle handle, u32 *addr)
return -ENODEV;
}
+static inline void acpi_init_properties(struct acpi_device *adev)
+{
+}
+
#endif /* !CONFIG_ACPI */
#ifdef CONFIG_ACPI_HOTPLUG_IOAPIC
--
2.25.1
