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Extcon: Notify changed state for only one cable to notifee

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This patch inform the state of only one cable instead of previous data
including the state of 32 cables to notifee which use
extcon_register_interest()
function to monitor whether the specific cable is attachd or detached.

Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
Signed-off-by: Myungjoo Ham <myungjoo.ham@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Chanwoo Choi 2012-04-27 15:17:28 +09:00 committed by Greg Kroah-Hartman
parent a1d26ac0dd
commit f4cce69611
1 changed files with 8 additions and 1 deletions
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9
drivers/extcon/extcon_class.c
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@ -425,8 +425,15 @@ static int _call_per_cable(struct notifier_block *nb, unsigned long val,
if ((val & (1 << obj->cable_index)) !=
(edev->state & (1 << obj->cable_index))) {
bool cable_state = true;
obj->previous_value = val;
return obj->user_nb->notifier_call(obj->user_nb, val, ptr);
if (val & (1 << obj->cable_index))
cable_state = false;
return obj->user_nb->notifier_call(obj->user_nb,
cable_state, ptr);
}
return NOTIFY_OK;