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authorChanwoo Choi <cw00.choi@samsung.com>2012-04-27 02:17:28 -0400
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2012-04-29 22:03:49 -0400
commitf4cce69611ee941bac0729c6069795f106905ef9 (patch)
tree4714e3c3862316bf22197240baa6f2dbc05b4115 /drivers/extcon
parenta1d26ac0ddc4ea561e17a75dd3b5f9d3c1812f16 (diff)
Extcon: Notify changed state for only one cable to notifee
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>
Diffstat (limited to 'drivers/extcon')
-rw-r--r--drivers/extcon/extcon_class.c9
1 files changed, 8 insertions, 1 deletions
diff --git a/drivers/extcon/extcon_class.c b/drivers/extcon/extcon_class.c
index 53c64a98b0be..4657ad38164b 100644
--- a/drivers/extcon/extcon_class.c
+++ b/drivers/extcon/extcon_class.c
@@ -425,8 +425,15 @@ static int _call_per_cable(struct notifier_block *nb, unsigned long val,
425 425
426 if ((val & (1 << obj->cable_index)) != 426 if ((val & (1 << obj->cable_index)) !=
427 (edev->state & (1 << obj->cable_index))) { 427 (edev->state & (1 << obj->cable_index))) {
428 bool cable_state = true;
429
428 obj->previous_value = val; 430 obj->previous_value = val;
429 return obj->user_nb->notifier_call(obj->user_nb, val, ptr); 431
432 if (val & (1 << obj->cable_index))
433 cable_state = false;
434
435 return obj->user_nb->notifier_call(obj->user_nb,
436 cable_state, ptr);
430 } 437 }
431 438
432 return NOTIFY_OK; 439 return NOTIFY_OK;