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Input: axp20x-pek - add wakeup support

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At least on devices with the AXP288 PMIC the device is expected to
wakeup from suspend when the power-button gets pressed, add support
for this.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
This commit is contained in:
Hans de Goede 2017-06-02 17:51:42 -07:00 committed by Dmitry Torokhov
parent 49bbbfa8d2
commit 58be768967
1 changed files with 28 additions and 0 deletions
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28
drivers/input/misc/axp20x-pek.c
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@ -253,6 +253,9 @@ static int axp20x_pek_probe_input_device(struct axp20x_pek *axp20x_pek,
return error;
}
if (axp20x_pek->axp20x->variant == AXP288_ID)
enable_irq_wake(axp20x_pek->irq_dbr);
return 0;
}
@ -301,10 +304,35 @@ static int axp20x_pek_probe(struct platform_device *pdev)
return 0;
}
static int __maybe_unused axp20x_pek_resume_noirq(struct device *dev)
{
struct axp20x_pek *axp20x_pek = dev_get_drvdata(dev);
if (axp20x_pek->axp20x->variant != AXP288_ID)
return 0;
/*
* Clear interrupts from button presses during suspend, to avoid
* a wakeup power-button press getting reported to userspace.
*/
regmap_write(axp20x_pek->axp20x->regmap,
AXP20X_IRQ1_STATE + AXP288_IRQ_POKN / 8,
BIT(AXP288_IRQ_POKN % 8));
return 0;
}
static const struct dev_pm_ops axp20x_pek_pm_ops = {
#ifdef CONFIG_PM_SLEEP
.resume_noirq = axp20x_pek_resume_noirq,
#endif
};
static struct platform_driver axp20x_pek_driver = {
.probe = axp20x_pek_probe,
.driver = {
.name = "axp20x-pek",
.pm = &axp20x_pek_pm_ops,
},
};
module_platform_driver(axp20x_pek_driver);