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| author | Hans de Goede <hdegoede@redhat.com> | 2020-03-24 00:59:39 +0300 |
|---|---|---|
| committer | Chanwoo Choi <cw00.choi@samsung.com> | 2020-03-25 02:16:14 +0300 |
| commit | 9c94553099efb2ba873cbdddfd416a8a09d0e5f1 (patch) | |
| tree | 914a3564b4697ae23da9092b76b5849e02fdfdc2 /drivers/extcon | |
| parent | 995bb1092326b8ba8fa29456c334ac6a49765ccd (diff) | |
| download | linux-9c94553099efb2ba873cbdddfd416a8a09d0e5f1.tar.xz | |
extcon: axp288: Add wakeup support
On devices with an AXP288, we need to wakeup from suspend when a charger
is plugged in, so that we can do charger-type detection and so that the
axp288-charger driver, which listens for our extcon events, can configure
the input-current-limit accordingly.
Cc: stable@vger.kernel.org
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
Diffstat (limited to 'drivers/extcon')
| -rw-r--r-- | drivers/extcon/extcon-axp288.c | 32 |
1 files changed, 32 insertions, 0 deletions
diff --git a/drivers/extcon/extcon-axp288.c b/drivers/extcon/extcon-axp288.c index a7f216191493..710a3bb66e95 100644 --- a/drivers/extcon/extcon-axp288.c +++ b/drivers/extcon/extcon-axp288.c @@ -443,9 +443,40 @@ static int axp288_extcon_probe(struct platform_device *pdev) /* Start charger cable type detection */ axp288_extcon_enable(info); + device_init_wakeup(dev, true); + platform_set_drvdata(pdev, info); + + return 0; +} + +static int __maybe_unused axp288_extcon_suspend(struct device *dev) +{ + struct axp288_extcon_info *info = dev_get_drvdata(dev); + + if (device_may_wakeup(dev)) + enable_irq_wake(info->irq[VBUS_RISING_IRQ]); + return 0; } +static int __maybe_unused axp288_extcon_resume(struct device *dev) +{ + struct axp288_extcon_info *info = dev_get_drvdata(dev); + + /* + * Wakeup when a charger is connected to do charger-type + * connection and generate an extcon event which makes the + * axp288 charger driver set the input current limit. + */ + if (device_may_wakeup(dev)) + disable_irq_wake(info->irq[VBUS_RISING_IRQ]); + + return 0; +} + +static SIMPLE_DEV_PM_OPS(axp288_extcon_pm_ops, axp288_extcon_suspend, + axp288_extcon_resume); + static const struct platform_device_id axp288_extcon_table[] = { { .name = "axp288_extcon" }, {}, @@ -457,6 +488,7 @@ static struct platform_driver axp288_extcon_driver = { .id_table = axp288_extcon_table, .driver = { .name = "axp288_extcon", + .pm = &axp288_extcon_pm_ops, }, }; |