The struct is unused now so drop it along with the functions that use it.
Cc: Daniel Vetter daniel.vetter@ffwll.ch Cc: Greg Kroah-Hartman gregkh@linuxfoundation.org Cc: "Rafael J. Wysocki" rafael@kernel.org Cc: Rob Clark robdclark@gmail.com Cc: Russell King rmk+kernel@arm.linux.org.uk Cc: Saravana Kannan saravanak@google.com Signed-off-by: Stephen Boyd swboyd@chromium.org --- drivers/base/component.c | 148 +++++--------------------------------- drivers/gpu/drm/drm_drv.c | 2 +- include/linux/component.h | 45 ------------ 3 files changed, 17 insertions(+), 178 deletions(-)
diff --git a/drivers/base/component.c b/drivers/base/component.c index cbf2d4cc0794..5a2a6c5b8b83 100644 --- a/drivers/base/component.c +++ b/drivers/base/component.c @@ -134,18 +134,12 @@ static void component_debugfs_del(struct aggregate_device *m)
#endif
-struct aggregate_bus_find_data { - const struct component_master_ops *ops; - struct device *parent; -}; - static int aggregate_bus_find_match(struct device *dev, const void *_data) { struct aggregate_device *adev = to_aggregate_device(dev); - const struct aggregate_bus_find_data *data = _data; + const struct device *parent = _data;
- if (adev->parent == data->parent && - (!data->ops || adev->ops == data->ops)) + if (adev->parent == parent) return 1;
return 0; @@ -406,30 +400,15 @@ static int aggregate_device_match(struct device *dev, struct device_driver *drv) return ret; }
-/* TODO: Remove once all aggregate drivers use component_aggregate_register() */ -static int component_probe_bind(struct aggregate_device *adev) -{ - return adev->ops->bind(adev->parent); -} - -static void component_remove_unbind(struct aggregate_device *adev) -{ - adev->ops->unbind(adev->parent); -} - static int aggregate_driver_probe(struct device *dev) { const struct aggregate_driver *adrv = to_aggregate_driver(dev->driver); struct aggregate_device *adev = to_aggregate_device(dev); - bool modern = adrv->probe != component_probe_bind; int ret;
- /* Only do runtime PM when drivers migrate */ - if (modern) { - pm_runtime_get_noresume(dev); - pm_runtime_set_active(dev); - pm_runtime_enable(dev); - } + pm_runtime_get_noresume(dev); + pm_runtime_set_active(dev); + pm_runtime_enable(dev);
mutex_lock(&component_mutex); if (devres_open_group(adev->parent, NULL, GFP_KERNEL)) { @@ -441,7 +420,7 @@ static int aggregate_driver_probe(struct device *dev) } mutex_unlock(&component_mutex);
- if (ret && modern) { + if (ret) { pm_runtime_disable(dev); pm_runtime_set_suspended(dev); pm_runtime_put_noidle(dev); @@ -454,15 +433,10 @@ static void aggregate_driver_remove(struct device *dev) { const struct aggregate_driver *adrv = to_aggregate_driver(dev->driver); struct aggregate_device *adev = to_aggregate_device(dev); - bool modern = adrv->remove != component_remove_unbind;
- /* Only do runtime PM when drivers migrate */ - if (modern) - pm_runtime_get_sync(dev); + pm_runtime_get_sync(dev); adrv->remove(to_aggregate_device(dev)); devres_release_group(adev->parent, NULL); - if (!modern) - return;
pm_runtime_put_noidle(dev);
@@ -488,16 +462,11 @@ static struct bus_type aggregate_bus_type = { };
/* Callers take ownership of return value, should call put_device() */ -static struct aggregate_device *__aggregate_find(struct device *parent, - const struct component_master_ops *ops) +static struct aggregate_device *__aggregate_find(struct device *parent) { struct device *dev; - struct aggregate_bus_find_data data = { - .ops = ops, - .parent = parent, - };
- dev = bus_find_device(&aggregate_bus_type, NULL, &data, + dev = bus_find_device(&aggregate_bus_type, NULL, parent, aggregate_bus_find_match);
return dev ? to_aggregate_device(dev) : NULL; @@ -515,7 +484,7 @@ static void aggregate_driver_unregister(struct aggregate_driver *adrv) }
static struct aggregate_device *aggregate_device_add(struct device *parent, - const struct component_master_ops *ops, struct aggregate_driver *adrv, + struct aggregate_driver *adrv, struct component_match *match) { struct aggregate_device *adev; @@ -540,7 +509,6 @@ static struct aggregate_device *aggregate_device_add(struct device *parent, adev->parent = parent; adev->dev.bus = &aggregate_bus_type; adev->dev.release = aggregate_device_release; - adev->ops = ops; adev->match = match; adev->adrv = adrv; dev_set_name(&adev->dev, "aggregate%d", id); @@ -556,54 +524,6 @@ static struct aggregate_device *aggregate_device_add(struct device *parent, return adev; }
-/** - * component_master_add_with_match - register an aggregate driver - * @parent: parent device of the aggregate driver - * @ops: callbacks for the aggregate driver - * @match: component match list for the aggregate driver - * - * Registers a new aggregate driver consisting of the components added to @match - * by calling one of the component_match_add() functions. Once all components in - * @match are available, it will be assembled by calling - * &component_master_ops.bind from @ops. Must be unregistered by calling - * component_master_del(). - * - * Deprecated: Use component_aggregate_register() instead. - */ -int component_master_add_with_match(struct device *parent, - const struct component_master_ops *ops, - struct component_match *match) -{ - struct aggregate_driver *adrv; - struct aggregate_device *adev; - int ret = 0; - - adrv = kzalloc(sizeof(*adrv), GFP_KERNEL); - if (!adrv) - return -ENOMEM; - - adev = aggregate_device_add(parent, ops, adrv, match); - if (IS_ERR(adev)) { - ret = PTR_ERR(adev); - goto err; - } - - adrv->probe = component_probe_bind; - adrv->remove = component_remove_unbind; - adrv->driver.owner = THIS_MODULE; - adrv->driver.name = dev_name(&adev->dev); - - ret = aggregate_driver_register(adrv); - if (!ret) - return 0; - - put_device(&adev->dev); -err: - kfree(adrv); - return ret; -} -EXPORT_SYMBOL_GPL(component_master_add_with_match); - /** * component_aggregate_register - register an aggregate driver * @parent: parent device of the aggregate driver @@ -620,7 +540,7 @@ int component_aggregate_register(struct device *parent, struct aggregate_device *adev; int ret;
- adev = aggregate_device_add(parent, NULL, adrv, match); + adev = aggregate_device_add(parent, adrv, match); if (IS_ERR(adev)) return PTR_ERR(adev);
@@ -632,42 +552,6 @@ int component_aggregate_register(struct device *parent, } EXPORT_SYMBOL_GPL(component_aggregate_register);
-/** - * component_master_del - unregister an aggregate driver - * @parent: parent device of the aggregate driver - * @ops: callbacks for the aggregate driver - * - * Unregisters an aggregate driver registered with - * component_master_add_with_match(). If necessary the aggregate driver is first - * disassembled by calling &component_master_ops.unbind from @ops. - * - * Deprecated: Use component_aggregate_unregister() instead. - */ -void component_master_del(struct device *parent, - const struct component_master_ops *ops) -{ - struct aggregate_device *adev; - struct aggregate_driver *adrv; - struct device_driver *drv; - - mutex_lock(&component_mutex); - adev = __aggregate_find(parent, ops); - mutex_unlock(&component_mutex); - - if (adev) { - drv = adev->dev.driver; - if (drv) { - adrv = to_aggregate_driver(drv); - aggregate_driver_unregister(adrv); - kfree(adrv); - } - - device_unregister(&adev->dev); - } - put_device(&adev->dev); -} -EXPORT_SYMBOL_GPL(component_master_del); - /** * component_aggregate_unregister - unregister an aggregate driver * @parent: parent device of the aggregate driver @@ -683,7 +567,7 @@ void component_aggregate_unregister(struct device *parent, struct aggregate_device *adev;
mutex_lock(&component_mutex); - adev = __aggregate_find(parent, NULL); + adev = __aggregate_find(parent); mutex_unlock(&component_mutex);
if (adev) @@ -719,7 +603,7 @@ static void component_unbind(struct component *component, * * Unbinds all components of the aggregate device by passing @data to their * &component_ops.unbind functions. Should be called from - * &component_master_ops.unbind. + * &aggregate_driver.remove. */ void component_unbind_all(struct device *parent, void *data) { @@ -729,7 +613,7 @@ void component_unbind_all(struct device *parent, void *data)
WARN_ON(!mutex_is_locked(&component_mutex));
- adev = __aggregate_find(parent, NULL); + adev = __aggregate_find(parent); if (!adev) return;
@@ -807,7 +691,7 @@ static int component_bind(struct component *component, struct aggregate_device * * * Binds all components of the aggregate @dev by passing @data to their * &component_ops.bind functions. Should be called from - * &component_master_ops.bind. + * &aggregate_driver.probe. */ int component_bind_all(struct device *parent, void *data) { @@ -818,7 +702,7 @@ int component_bind_all(struct device *parent, void *data)
WARN_ON(!mutex_is_locked(&component_mutex));
- adev = __aggregate_find(parent, NULL); + adev = __aggregate_find(parent); if (!adev) return -EINVAL;
diff --git a/drivers/gpu/drm/drm_drv.c b/drivers/gpu/drm/drm_drv.c index 7a5097467ba5..d188fa26bb1b 100644 --- a/drivers/gpu/drm/drm_drv.c +++ b/drivers/gpu/drm/drm_drv.c @@ -544,7 +544,7 @@ static void drm_fs_inode_free(struct inode *inode) * following guidelines apply: * * - The entire device initialization procedure should be run from the - * &component_master_ops.master_bind callback, starting with + * &aggregate_driver.probe callback, starting with * devm_drm_dev_alloc(), then binding all components with * component_bind_all() and finishing with drm_dev_register(). * diff --git a/include/linux/component.h b/include/linux/component.h index d8dcbf9733da..07fe481d4e3b 100644 --- a/include/linux/component.h +++ b/include/linux/component.h @@ -63,47 +63,7 @@ void component_del(struct device *, const struct component_ops *); int component_bind_all(struct device *master, void *master_data); void component_unbind_all(struct device *master, void *master_data);
-/** - * struct component_master_ops - callback for the aggregate driver - * - * Aggregate drivers are registered with component_master_add_with_match() and - * unregistered with component_master_del(). - */ -struct component_master_ops { - /** - * @bind: - * - * Called when all components or the aggregate driver, as specified in - * the match list passed to component_master_add_with_match(), are - * ready. Usually there are 3 steps to bind an aggregate driver: - * - * 1. Allocate a structure for the aggregate driver. - * - * 2. Bind all components to the aggregate driver by calling - * component_bind_all() with the aggregate driver structure as opaque - * pointer data. - * - * 3. Register the aggregate driver with the subsystem to publish its - * interfaces. - * - * Note that the lifetime of the aggregate driver does not align with - * any of the underlying &struct device instances. Therefore devm cannot - * be used and all resources acquired or allocated in this callback must - * be explicitly released in the @unbind callback. - */ - int (*bind)(struct device *master); - /** - * @unbind: - * - * Called when either the aggregate driver, using - * component_master_del(), or one of its components, using - * component_del(), is unregistered. - */ - void (*unbind)(struct device *master); -}; - struct aggregate_device { - const struct component_master_ops *ops; struct device *parent; struct device dev; struct component_match *match; @@ -171,11 +131,6 @@ int component_aggregate_register(struct device *parent, void component_aggregate_unregister(struct device *parent, struct aggregate_driver *adrv);
-void component_master_del(struct device *, - const struct component_master_ops *); - -int component_master_add_with_match(struct device *, - const struct component_master_ops *, struct component_match *); void component_match_add_release(struct device *master, struct component_match **matchptr, void (*release)(struct device *, void *),