diff options
| author | Laxman Dewangan <ldewangan@nvidia.com> | 2013-07-09 18:34:23 +0530 |
|---|---|---|
| committer | Chanwoo Choi <cw00.choi@samsung.com> | 2013-08-05 08:53:34 +0900 |
| commit | 024783ef422791d7ca58b106495f7c31802df6f3 (patch) | |
| tree | 66d09596816eac8d8d836d1ef7d2a55c9287898b /drivers/extcon | |
| parent | 002945f014ab51c470fdbd30b199fa85f715280d (diff) | |
| download | lwn-024783ef422791d7ca58b106495f7c31802df6f3.tar.gz lwn-024783ef422791d7ca58b106495f7c31802df6f3.zip | |
extcon: palams: add support for suspend/resume
Add suspend/resume callbacks and support for wakeup from
suspend on USB HOST or USB Device cable insertion or removal.
Signed-off-by: Laxman Dewangan <ldewangan@nvidia.com>
Acked-by: Graeme Gregory <gg@slimlogic.co.uk>
Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
Signed-off-by: Myungjoo Ham <myungjoo.ham@samsung.com>
Diffstat (limited to 'drivers/extcon')
| -rw-r--r-- | drivers/extcon/extcon-palmas.c | 38 |
1 files changed, 35 insertions, 3 deletions
diff --git a/drivers/extcon/extcon-palmas.c b/drivers/extcon/extcon-palmas.c index ef77a461ca39..d0ce0f16de70 100644 --- a/drivers/extcon/extcon-palmas.c +++ b/drivers/extcon/extcon-palmas.c @@ -181,7 +181,8 @@ static int palmas_usb_probe(struct platform_device *pdev) status = devm_request_threaded_irq(palmas_usb->dev, palmas_usb->id_irq, NULL, palmas_id_irq_handler, - IRQF_TRIGGER_FALLING | IRQF_TRIGGER_RISING, + IRQF_TRIGGER_FALLING | IRQF_TRIGGER_RISING | + IRQF_ONESHOT | IRQF_EARLY_RESUME, "palmas_usb_id", palmas_usb); if (status < 0) { dev_err(&pdev->dev, "can't get IRQ %d, err %d\n", @@ -191,7 +192,8 @@ static int palmas_usb_probe(struct platform_device *pdev) status = devm_request_threaded_irq(palmas_usb->dev, palmas_usb->vbus_irq, NULL, palmas_vbus_irq_handler, - IRQF_TRIGGER_FALLING | IRQF_TRIGGER_RISING, + IRQF_TRIGGER_FALLING | IRQF_TRIGGER_RISING | + IRQF_ONESHOT | IRQF_EARLY_RESUME, "palmas_usb_vbus", palmas_usb); if (status < 0) { dev_err(&pdev->dev, "can't get IRQ %d, err %d\n", @@ -200,7 +202,7 @@ static int palmas_usb_probe(struct platform_device *pdev) } palmas_enable_irq(palmas_usb); - + device_set_wakeup_capable(&pdev->dev, true); return 0; fail_extcon: @@ -218,6 +220,35 @@ static int palmas_usb_remove(struct platform_device *pdev) return 0; } +#ifdef CONFIG_PM_SLEEP +static int palmas_usb_suspend(struct device *dev) +{ + struct palmas_usb *palmas_usb = dev_get_drvdata(dev); + + if (device_may_wakeup(dev)) { + enable_irq_wake(palmas_usb->vbus_irq); + enable_irq_wake(palmas_usb->id_irq); + } + return 0; +} + +static int palmas_usb_resume(struct device *dev) +{ + struct palmas_usb *palmas_usb = dev_get_drvdata(dev); + + if (device_may_wakeup(dev)) { + disable_irq_wake(palmas_usb->vbus_irq); + disable_irq_wake(palmas_usb->id_irq); + } + return 0; +}; +#endif + +static const struct dev_pm_ops palmas_pm_ops = { + SET_SYSTEM_SLEEP_PM_OPS(palmas_usb_suspend, + palmas_usb_resume) +}; + static struct of_device_id of_palmas_match_tbl[] = { { .compatible = "ti,palmas-usb", }, { .compatible = "ti,twl6035-usb", }, @@ -231,6 +262,7 @@ static struct platform_driver palmas_usb_driver = { .name = "palmas-usb", .of_match_table = of_palmas_match_tbl, .owner = THIS_MODULE, + .pm = &palmas_pm_ops, }, }; |