ACPI: add acpi_bus_ops in acpi_device
Add acpi_bus_ops in acpi_device to support acpi hot plug.
NOTE: Two methods .add and .start in acpi_driver.ops are
called separately to probe ACPI devices, while only
.probe method is called in driver model.
As executing .add and .start separately is critical
for ACPI device hot plug, we use acpi_bus_ops to
distinguish different code path.
Signed-off-by: Zhang Rui <rui.zhang@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
diff --git a/include/acpi/acpi_bus.h b/include/acpi/acpi_bus.h
index 598fab3..8976dbe 100644
--- a/include/acpi/acpi_bus.h
+++ b/include/acpi/acpi_bus.h
@@ -300,6 +300,7 @@
struct acpi_driver *driver;
void *driver_data;
struct device dev;
+ struct acpi_bus_ops bus_ops; /* workaround for different code path for hotplug */
};
#define acpi_driver_data(d) ((d)->driver_data)