@@ -60,6 +60,7 @@ extern struct dev_pm_domain omap_device_pm_domain;
* @_dev_wakeup_lat_limit: dev wakeup latency limit in nsec - set by OMAP PM
* @_state: one of OMAP_DEVICE_STATE_* (see above)
* @flags: device flags
+ * @_driver_status: one of BUS_NOTIFY_*_DRIVER from <linux/device.h>
*
* Integrates omap_hwmod data into Linux platform_device.
*
@@ -73,6 +74,7 @@ struct omap_device {
struct omap_device_pm_latency *pm_lats;
u32 dev_wakeup_lat;
u32 _dev_wakeup_lat_limit;
+ unsigned long _driver_status;
u8 pm_lats_cnt;
s8 pm_lat_level;
u8 hwmods_cnt;
@@ -385,17 +385,21 @@ static int _omap_device_notifier_call(struct notifier_block *nb,
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;
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. Cc: Paul Walmsley <paul@pwsan.com> Signed-off-by: Kevin Hilman <khilman@ti.com> --- arch/arm/plat-omap/include/plat/omap_device.h | 2 ++ arch/arm/plat-omap/omap_device.c | 14 +++++++++----- 2 files changed, 11 insertions(+), 5 deletions(-)