diff options
| author | Harry Hong <hhong@nvidia.com> | 2013-08-28 16:32:42 +0900 |
|---|---|---|
| committer | Gabby Lee <galee@nvidia.com> | 2013-08-29 05:30:05 -0700 |
| commit | a6477db2ef36ac1662b539492e1f654858ee60ed (patch) | |
| tree | 7558f3a509003577f8d8c4ead43f7de883d6fb7a /drivers | |
| parent | ce4e23a2ea496a9932467718b435e9dad2f9642c (diff) | |
misc: ti-st: enable wakeup device
- enable st_host_wake device as wakeup device
- set device_wakeup_enabe by default
- don't freq irq if irq is not registered
in this driver
bug 1347948
Change-Id: Id8467cadc21270f73154e32711818111b8eb10c0
Signed-off-by: Harry Hong <hhong@nvidia.com>
Reviewed-on: http://git-master/r/267128
Reviewed-by: Automatic_Commit_Validation_User
GVS: Gerrit_Virtual_Submit
Reviewed-by: Rakesh Goyal <rgoyal@nvidia.com>
Reviewed-by: Gabby Lee <galee@nvidia.com>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/misc/ti-st/st_host_wake.c | 17 |
1 files changed, 13 insertions, 4 deletions
diff --git a/drivers/misc/ti-st/st_host_wake.c b/drivers/misc/ti-st/st_host_wake.c index 5f03d405d933..588e1e490680 100644 --- a/drivers/misc/ti-st/st_host_wake.c +++ b/drivers/misc/ti-st/st_host_wake.c @@ -44,6 +44,7 @@ struct st_host_wake_info { struct regulator *vdd_3v3; struct regulator *vdd_1v8; unsigned int supp_proto_reg; + bool is_request_irq; }; static unsigned long flags; @@ -159,6 +160,7 @@ static int st_host_wake_probe(struct platform_device *pdev) pr_warn("%s: regulator vddio_st_1v8 not available\n", __func__); bsi->vdd_1v8 = NULL; } + bsi->is_request_irq = 0; res = platform_get_resource_byname(pdev, IORESOURCE_IRQ, "host_wake"); @@ -186,6 +188,7 @@ static int st_host_wake_probe(struct platform_device *pdev) ret = request_irq(bsi->host_wake_irq, st_host_wake_isr, IRQF_DISABLED | IRQF_TRIGGER_RISING, "bluetooth hostwake", dev_id); + bsi->is_request_irq = 1; } if (ret < 0) { pr_err("Couldn't acquire HOST_WAKE IRQ"); @@ -195,6 +198,8 @@ static int st_host_wake_probe(struct platform_device *pdev) clear_bit(HOST_WAKE, &flags); bsi->supp_proto_reg = 0; + device_init_wakeup(&pdev->dev, 1); + goto finish; free_bsi: @@ -207,7 +212,8 @@ static int st_host_wake_remove(struct platform_device *pdev) { pr_debug("%s", __func__); - free_irq(bsi->host_wake_irq, dev_id); + if (bsi->is_request_irq) + free_irq(bsi->host_wake_irq, dev_id); if (bsi->vdd_3v3) regulator_put(bsi->vdd_3v3); @@ -223,7 +229,8 @@ static int st_host_wake_resume(struct platform_device *pdev) { pr_info("%s", __func__); - if (test_bit(HOST_WAKE, &flags) && test_bit(IRQ_WAKE, &flags)) { + if (test_bit(HOST_WAKE, &flags) && test_bit(IRQ_WAKE, &flags) + && device_may_wakeup(&pdev->dev)) { pr_info("disable the host_wake irq"); disable_irq_wake(bsi->host_wake_irq); clear_bit(IRQ_WAKE, &flags); @@ -232,13 +239,15 @@ static int st_host_wake_resume(struct platform_device *pdev) return 0; } -static int st_host_wake_suspend(void) +static int st_host_wake_suspend(struct platform_device *pdev, + pm_message_t state) { int retval = 0; pr_info("%s", __func__); - if (test_bit(HOST_WAKE, &flags) && (!test_bit(IRQ_WAKE, &flags))) { + if (test_bit(HOST_WAKE, &flags) && (!test_bit(IRQ_WAKE, &flags)) + && device_may_wakeup(&pdev->dev)) { retval = enable_irq_wake(bsi->host_wake_irq); if (retval < 0) { pr_err("Failed to enable HOST_WAKE irq (%d)", retval); |