diff options
| author | Nagarjuna Kristam <nkristam@nvidia.com> | 2012-05-14 12:20:05 +0530 |
|---|---|---|
| committer | Simone Willett <swillett@nvidia.com> | 2012-05-15 15:12:28 -0700 |
| commit | 2c6ab704f63563a1119ded418d1ad1d280c6588f (patch) | |
| tree | f38a4072c9f963846a96dea10010a58f4fc75421 /drivers/misc | |
| parent | 9143c5b26abf8e4cbbd12fbb4554524866717e67 (diff) | |
misc: bt rfkill: toggle power GPIO based on current power state
check if requested state and current BT power state is same,
if yes, do not toggle BT power GPIO's.
if not, set requested power state.
Bug 982600
Bug 928604
Change-Id: I82c65fd6d43940c86cc3de440295ba179a4ade33
Signed-off-by: Nagarjuna Kristam <nkristam@nvidia.com>
Reviewed-on: http://git-master/r/102190
Reviewed-by: Rakesh Kumar <krakesh@nvidia.com>
Reviewed-by: Automatic_Commit_Validation_User
GVS: Gerrit_Virtual_Submit
Reviewed-by: Bharat Nihalani <bnihalani@nvidia.com>
Diffstat (limited to 'drivers/misc')
| -rw-r--r-- | drivers/misc/bcm4329_rfkill.c | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/drivers/misc/bcm4329_rfkill.c b/drivers/misc/bcm4329_rfkill.c index a077326f2553..cf56768e2baa 100644 --- a/drivers/misc/bcm4329_rfkill.c +++ b/drivers/misc/bcm4329_rfkill.c @@ -44,6 +44,13 @@ static struct bcm4329_rfkill_data *bcm4329_rfkill; static int bcm4329_bt_rfkill_set_power(void *data, bool blocked) { + /* + * check if BT gpio_shutdown line status and current request are same. + * If same, then return, else perform requested operation. + */ + if (gpio_get_value(bcm4329_rfkill->gpio_shutdown) && !blocked) + return 0; + if (blocked) { if (bcm4329_rfkill->gpio_shutdown) gpio_direction_output(bcm4329_rfkill->gpio_shutdown, 0); |