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path: root/drivers/extcon/extcon.c
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Diffstat (limited to 'drivers/extcon/extcon.c')
-rw-r--r--drivers/extcon/extcon.c28
1 files changed, 13 insertions, 15 deletions
diff --git a/drivers/extcon/extcon.c b/drivers/extcon/extcon.c
index 599fc377a965..d66adfd21159 100644
--- a/drivers/extcon/extcon.c
+++ b/drivers/extcon/extcon.c
@@ -398,8 +398,7 @@ static ssize_t cable_state_show(struct device *dev,
int i = cable->cable_index;
return sprintf(buf, "%d\n",
- extcon_get_cable_state_(cable->edev,
- cable->edev->supported_cable[i]));
+ extcon_get_state(cable->edev, cable->edev->supported_cable[i]));
}
/**
@@ -495,13 +494,14 @@ static int extcon_update_state(struct extcon_dev *edev, u32 mask, u32 state)
}
/**
- * extcon_get_cable_state_() - Get the status of a specific cable.
+ * extcon_get_state() - Get the state of a external connector.
* @edev: the extcon device that has the cable.
* @id: the unique id of each external connector in extcon enumeration.
*/
-int extcon_get_cable_state_(struct extcon_dev *edev, const unsigned int id)
+int extcon_get_state(struct extcon_dev *edev, const unsigned int id)
{
- int index;
+ int index, state;
+ unsigned long flags;
if (!edev)
return -EINVAL;
@@ -510,22 +510,23 @@ int extcon_get_cable_state_(struct extcon_dev *edev, const unsigned int id)
if (index < 0)
return index;
- if (edev->max_supported && edev->max_supported <= index)
- return -EINVAL;
+ spin_lock_irqsave(&edev->lock, flags);
+ state = is_extcon_attached(edev, index);
+ spin_unlock_irqrestore(&edev->lock, flags);
- return is_extcon_attached(edev, index);
+ return state;
}
-EXPORT_SYMBOL_GPL(extcon_get_cable_state_);
+EXPORT_SYMBOL_GPL(extcon_get_state);
/**
- * extcon_set_cable_state_() - Set the status of a specific cable.
+ * extcon_set_state() - Set the state of a external connector.
* @edev: the extcon device that has the cable.
* @id: the unique id of each external connector
* in extcon enumeration.
* @state: the new cable status. The default semantics is
* true: attached / false: detached.
*/
-int extcon_set_cable_state_(struct extcon_dev *edev, unsigned int id,
+int extcon_set_state(struct extcon_dev *edev, unsigned int id,
bool cable_state)
{
u32 state;
@@ -538,9 +539,6 @@ int extcon_set_cable_state_(struct extcon_dev *edev, unsigned int id,
if (index < 0)
return index;
- if (edev->max_supported && edev->max_supported <= index)
- return -EINVAL;
-
/*
* Initialize the value of extcon property before setting
* the detached state for an external connector.
@@ -551,7 +549,7 @@ int extcon_set_cable_state_(struct extcon_dev *edev, unsigned int id,
state = cable_state ? (1 << index) : 0;
return extcon_update_state(edev, 1 << index, state);
}
-EXPORT_SYMBOL_GPL(extcon_set_cable_state_);
+EXPORT_SYMBOL_GPL(extcon_set_state);
/**
* extcon_get_property() - Get the property value of a specific cable.