ARM: OMAP: omap_device: keep track of driver bound status
Use the bus notifier to keep track of driver bound status by adding a
new internal field to struct omap_device: _driver_status.
This will be useful for follow-up patches which need to know whether
or not a driver is bound in order to make intelligent omap_device
enable/idle decisions.
Reviewed-by: Paul Walmsley <paul@pwsan.com>
Signed-off-by: Kevin Hilman <khilman@ti.com>
diff --git a/arch/arm/plat-omap/omap_device.c b/arch/arm/plat-omap/omap_device.c
index c490240..1d1b5ff 100644
--- a/arch/arm/plat-omap/omap_device.c
+++ b/arch/arm/plat-omap/omap_device.c
@@ -385,17 +385,21 @@
unsigned long event, void *dev)
{
struct platform_device *pdev = to_platform_device(dev);
+ struct omap_device *od;
switch (event) {
- case BUS_NOTIFY_ADD_DEVICE:
- if (pdev->dev.of_node)
- omap_device_build_from_dt(pdev);
- break;
-
case BUS_NOTIFY_DEL_DEVICE:
if (pdev->archdata.od)
omap_device_delete(pdev->archdata.od);
break;
+ case BUS_NOTIFY_ADD_DEVICE:
+ if (pdev->dev.of_node)
+ omap_device_build_from_dt(pdev);
+ /* fall through */
+ default:
+ od = to_omap_device(pdev);
+ if (od)
+ od->_driver_status = event;
}
return NOTIFY_DONE;