diff options
| author | Nagarjuna Kristam <nkristam@nvidia.com> | 2012-12-20 21:51:27 +0530 |
|---|---|---|
| committer | Dan Willemsen <dwillemsen@nvidia.com> | 2013-09-14 12:48:22 -0700 |
| commit | b47a8839db21a2a59125749d6eefc042e39ebea2 (patch) | |
| tree | f925b32615182fbe01384d12cc72cab032b12f1e /drivers/misc/bluedroid_pm.c | |
| parent | a938d59a8cfa28364f4cac7377369681122286c2 (diff) | |
misc: bluedroid_pm: add wake_lock support
Use wake locks when bluetooth communication is on-going to dis-allow
system suspend
Bug 1205772
Change-Id: I57d4286ef6a7ae7d246bd0cbd53db68afa832827
Signed-off-by: Nagarjuna Kristam <nkristam@nvidia.com>
Reviewed-on: http://git-master/r/173177
(cherry picked from commit 113a9e90c82a991e293580119fb6df1882f9da84)
Reviewed-on: http://git-master/r/174406
Reviewed-by: Riham Haidar <rhaidar@nvidia.com>
Tested-by: Riham Haidar <rhaidar@nvidia.com>
Diffstat (limited to 'drivers/misc/bluedroid_pm.c')
| -rw-r--r-- | drivers/misc/bluedroid_pm.c | 16 |
1 files changed, 13 insertions, 3 deletions
diff --git a/drivers/misc/bluedroid_pm.c b/drivers/misc/bluedroid_pm.c index 011552ed3f9c..2b27f0fdf6c0 100644 --- a/drivers/misc/bluedroid_pm.c +++ b/drivers/misc/bluedroid_pm.c @@ -33,6 +33,7 @@ #include <linux/platform_device.h> #include <linux/clk.h> #include <linux/interrupt.h> +#include <linux/wakelock.h> #define PROC_DIR "bluetooth/sleep" struct bluedroid_pm_data { @@ -45,6 +46,7 @@ struct bluedroid_pm_data { struct regulator *vdd_3v3; struct regulator *vdd_1v8; struct rfkill *rfkill; + struct wake_lock wake_lock; }; struct proc_dir_entry *proc_bt_dir, *bluetooth_sleep_dir; @@ -78,6 +80,8 @@ static int bluedroid_pm_rfkill_set_power(void *data, bool blocked) regulator_disable(bluedroid_pm->vdd_3v3); if (bluedroid_pm->vdd_1v8) regulator_disable(bluedroid_pm->vdd_1v8); + if (bluedroid_pm->ext_wake) + wake_unlock(&bluedroid_pm->wake_lock); } else { if (bluedroid_pm->vdd_3v3) regulator_enable(bluedroid_pm->vdd_3v3); @@ -235,6 +239,9 @@ static int bluedroid_pm_probe(struct platform_device *pdev) pr_err("%s: Failed to create proc interface", __func__); goto free_res; } + /* initialize wake lock */ + wake_lock_init(&bluedroid_pm->wake_lock, WAKE_LOCK_SUSPEND, + "bluedroid_pm"); } else { pr_debug("%s: gpio_ext_wake not registered\n", __func__); bluedroid_pm->ext_wake = 0; @@ -275,6 +282,7 @@ static int bluedroid_pm_remove(struct platform_device *pdev) if (bluedroid_pm->host_wake_irq) free_irq(bluedroid_pm->host_wake_irq, NULL); if (bluedroid_pm->ext_wake) { + wake_lock_destroy(&bluedroid_pm->wake_lock); gpio_free(bluedroid_pm->ext_wake); remove_bt_proc_interface(); } @@ -354,11 +362,13 @@ static int lpm_write_proc(struct file *file, const char *buffer, } if (!bluedroid_pm->is_blocked) { - if (buf[0] == '0') + if (buf[0] == '0') { gpio_set_value(bluedroid_pm->ext_wake, 0); - else if (buf[0] == '1') + wake_unlock(&bluedroid_pm->wake_lock); + } else if (buf[0] == '1') { gpio_set_value(bluedroid_pm->ext_wake, 1); - else { + wake_lock(&bluedroid_pm->wake_lock); + } else { kfree(buf); return -EINVAL; } |