diff options
Diffstat (limited to 'drivers/base/component.c')
| -rw-r--r-- | drivers/base/component.c | 36 |
1 files changed, 27 insertions, 9 deletions
diff --git a/drivers/base/component.c b/drivers/base/component.c index 7dbf14a1d915..024ad9471b8a 100644 --- a/drivers/base/component.c +++ b/drivers/base/component.c @@ -87,17 +87,17 @@ static int component_devices_show(struct seq_file *s, void *data) size_t i; mutex_lock(&component_mutex); - seq_printf(s, "%-40s %20s\n", "aggregate_device name", "status"); - seq_puts(s, "-------------------------------------------------------------\n"); - seq_printf(s, "%-40s %20s\n\n", + seq_printf(s, "%-50s %20s\n", "aggregate_device name", "status"); + seq_puts(s, "-----------------------------------------------------------------------\n"); + seq_printf(s, "%-50s %20s\n\n", dev_name(m->parent), m->bound ? "bound" : "not bound"); - seq_printf(s, "%-40s %20s\n", "device name", "status"); - seq_puts(s, "-------------------------------------------------------------\n"); + seq_printf(s, "%-50s %20s\n", "device name", "status"); + seq_puts(s, "-----------------------------------------------------------------------\n"); for (i = 0; i < match->num; i++) { struct component *component = match->compare[i].component; - seq_printf(s, "%-40s %20s\n", + seq_printf(s, "%-50s %20s\n", component ? dev_name(component->dev) : "(unknown)", component ? (component->bound ? "bound" : "not bound") : "not registered"); } @@ -569,10 +569,28 @@ void component_master_del(struct device *parent, } EXPORT_SYMBOL_GPL(component_master_del); +bool component_master_is_bound(struct device *parent, + const struct component_master_ops *ops) +{ + struct aggregate_device *adev; + + guard(mutex)(&component_mutex); + adev = __aggregate_find(parent, ops); + if (!adev) + return 0; + + return adev->bound; +} +EXPORT_SYMBOL_GPL(component_master_is_bound); + static void component_unbind(struct component *component, struct aggregate_device *adev, void *data) { - WARN_ON(!component->bound); + if (WARN_ON(!component->bound)) + return; + + dev_dbg(adev->parent, "unbinding %s component %p (ops %ps)\n", + dev_name(component->dev), component, component->ops); if (component->ops && component->ops->unbind) component->ops->unbind(component->dev, adev->parent, data); @@ -751,7 +769,7 @@ static int __component_add(struct device *dev, const struct component_ops *ops, * component_bind_all(). See also &struct component_ops. * * @subcomponent must be nonzero and is used to differentiate between multiple - * components registerd on the same device @dev. These components are match + * components registered on the same device @dev. These components are match * using component_match_add_typed(). * * The component needs to be unregistered at driver unload/disconnect by @@ -781,7 +799,7 @@ EXPORT_SYMBOL_GPL(component_add_typed); * The component needs to be unregistered at driver unload/disconnect by * calling component_del(). * - * See also component_add_typed() for a variant that allows multipled different + * See also component_add_typed() for a variant that allows multiple different * components on the same device. */ int component_add(struct device *dev, const struct component_ops *ops) |