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 ssize_t active_show(struct device *dev, struct device_attribute *attr,
char *buf)
{
struct intel_th_device *thdev = to_intel_th_device(dev);
return scnprintf(buf, PAGE_SIZE, "%d\n", thdev->output.active);
}
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 ssize_t port_show(struct device *dev, struct device_attribute *attr,
char *buf)
{
struct intel_th_device *thdev = to_intel_th_device(dev);
if (thdev->output.port >= 0)
return scnprintf(buf, PAGE_SIZE, "%u\n", thdev->output.port);
return scnprintf(buf, PAGE_SIZE, "unassigned\n");
}
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 char *intel_th_output_devnode(struct device *dev, umode_t *mode,
kuid_t *uid, kgid_t *gid)
{
struct intel_th_device *thdev = to_intel_th_device(dev);
char *node;
if (thdev->id >= 0)
node = kasprintf(GFP_KERNEL, "intel_th%d/%s%d", 0, thdev->name,
thdev->id);
else
node = kasprintf(GFP_KERNEL, "intel_th%d/%s", 0, thdev->name);
return node;
}
static ssize_t active_store(struct device *dev, struct device_attribute *attr,
const char *buf, size_t size)
{
struct intel_th_device *thdev = to_intel_th_device(dev);
unsigned long val;
int ret;
ret = kstrtoul(buf, 10, &val);
if (ret)
return ret;
if (!!val != thdev->output.active) {
if (val)
ret = intel_th_output_activate(thdev);
else
intel_th_output_deactivate(thdev);
}
return ret ? ret : size;
}
static void intel_th_device_release(struct device *dev)
{
intel_th_device_free(to_intel_th_device(dev));
}