static int intel_th_remove(struct device *dev)
{
struct intel_th_driver *thdrv = to_intel_th_driver(dev->driver);
struct intel_th_device *thdev = to_intel_th_device(dev);
struct intel_th_device *hub = to_intel_th_device(dev->parent);
int err;
if (thdev->type == INTEL_TH_SWITCH) {
err = device_for_each_child(dev, thdev, intel_th_child_remove);
if (err)
return err;
}
if (thdrv->attr_group)
sysfs_remove_group(&thdev->dev.kobj, thdrv->attr_group);
pm_runtime_get_sync(dev);
thdrv->remove(thdev);
if (intel_th_output_assigned(thdev)) {
struct intel_th_driver *hubdrv =
to_intel_th_driver(dev->parent->driver);
if (hub->dev.driver)
/* does not talk to hardware */
hubdrv->unassign(hub, thdev);
}
pm_runtime_disable(dev);
pm_runtime_set_active(dev);
pm_runtime_enable(dev);
return 0;
}
static int intel_th_remove(struct device *dev)
{
struct intel_th_driver *thdrv = to_intel_th_driver(dev->driver);
struct intel_th_device *thdev = to_intel_th_device(dev);
struct intel_th_device *hub = to_intel_th_device(dev->parent);
int err;
if (thdev->type == INTEL_TH_SWITCH) {
err = device_for_each_child(dev, thdev, intel_th_child_remove);
if (err)
return err;
}
thdrv->remove(thdev);
if (intel_th_output_assigned(thdev)) {
struct intel_th_driver *hubdrv =
to_intel_th_driver(dev->parent->driver);
if (hub->dev.driver)
hubdrv->unassign(hub, thdev);
}
return 0;
}
static int intel_th_probe(struct device *dev)
{
struct intel_th_driver *thdrv = to_intel_th_driver(dev->driver);
struct intel_th_device *thdev = to_intel_th_device(dev);
struct intel_th_driver *hubdrv;
struct intel_th_device *hub = NULL;
int ret;
if (thdev->type == INTEL_TH_SWITCH)
hub = thdev;
else if (dev->parent)
hub = to_intel_th_device(dev->parent);
if (!hub || !hub->dev.driver)
return -EPROBE_DEFER;
hubdrv = to_intel_th_driver(hub->dev.driver);
ret = thdrv->probe(to_intel_th_device(dev));
if (ret)
return ret;
if (thdev->type == INTEL_TH_OUTPUT &&
!intel_th_output_assigned(thdev))
ret = hubdrv->assign(hub, thdev);
return ret;
}
static int intel_th_probe(struct device *dev)
{
struct intel_th_driver *thdrv = to_intel_th_driver(dev->driver);
struct intel_th_device *thdev = to_intel_th_device(dev);
struct intel_th_driver *hubdrv;
struct intel_th_device *hub = NULL;
int ret;
if (thdev->type == INTEL_TH_SWITCH)
hub = thdev;
else if (dev->parent)
hub = to_intel_th_device(dev->parent);
if (!hub || !hub->dev.driver)
return -EPROBE_DEFER;
hubdrv = to_intel_th_driver(hub->dev.driver);
pm_runtime_set_active(dev);
pm_runtime_no_callbacks(dev);
pm_runtime_enable(dev);
ret = thdrv->probe(to_intel_th_device(dev));
if (ret)
goto out_pm;
if (thdrv->attr_group) {
ret = sysfs_create_group(&thdev->dev.kobj, thdrv->attr_group);
if (ret)
goto out;
}
if (thdev->type == INTEL_TH_OUTPUT &&
!intel_th_output_assigned(thdev))
/* does not talk to hardware */
ret = hubdrv->assign(hub, thdev);
out:
if (ret)
thdrv->remove(thdev);
out_pm:
if (ret)
pm_runtime_disable(dev);
return ret;
}
static void intel_th_output_deactivate(struct intel_th_device *thdev)
{
struct intel_th_driver *thdrv = to_intel_th_driver(thdev->dev.driver);
if (thdrv->deactivate)
thdrv->deactivate(thdev);
else
intel_th_trace_disable(thdev);
}
static int intel_th_match(struct device *dev, struct device_driver *driver)
{
struct intel_th_driver *thdrv = to_intel_th_driver(driver);
struct intel_th_device *thdev = to_intel_th_device(dev);
if (thdev->type == INTEL_TH_SWITCH &&
(!thdrv->enable || !thdrv->disable))
return 0;
return !strcmp(thdev->name, driver->name);
}
static int intel_th_output_activate(struct intel_th_device *thdev)
{
struct intel_th_driver *thdrv = to_intel_th_driver(thdev->dev.driver);
if (thdrv->activate)
return thdrv->activate(thdev);
intel_th_trace_enable(thdev);
return 0;
}
