To use to control the delay attach driver for specific device.
Will use bus notifier to toggle this bits when needed.
Signed-off-by: Yinghai Lu <yinghai@xxxxxxxxxx>
Cc: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
drivers/base/bus.c | 2 +-
drivers/base/core.c | 1 +
include/linux/device.h | 1 +
3 files changed, 3 insertions(+), 1 deletions(-)
diff --git a/drivers/base/bus.c b/drivers/base/bus.c
index 181ed26..22b826a 100644
--- a/drivers/base/bus.c
+++ b/drivers/base/bus.c
@@ -538,7 +538,7 @@ void bus_probe_device(struct device *dev)
if (!bus)
return;
- if (bus->p->drivers_autoprobe) {
+ if (bus->p->drivers_autoprobe && dev->drivers_autoprobe) {
ret = device_attach(dev);
WARN_ON(ret < 0);
}
diff --git a/drivers/base/core.c b/drivers/base/core.c
index 5e6e00b..8a71f88 100644
--- a/drivers/base/core.c
+++ b/drivers/base/core.c
@@ -656,6 +656,7 @@ void device_initialize(struct device *dev)
INIT_LIST_HEAD(&dev->devres_head);
device_pm_init(dev);
set_dev_node(dev, -1);
+ dev->drivers_autoprobe = true;
}
static struct kobject *virtual_device_parent(struct device *dev)
diff --git a/include/linux/device.h b/include/linux/device.h
index 52a5f15..e08db26 100644
--- a/include/linux/device.h
+++ b/include/linux/device.h
@@ -647,6 +647,7 @@ struct device {
struct bus_type *bus; /* type of bus device is on */
struct device_driver *driver; /* which driver has allocated this
device */
+ bool drivers_autoprobe;
void *platform_data; /* Platform specific data, device
core doesn't touch it */
struct dev_pm_info power;
--
1.7.7
--
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