From 58be76896786b512e97cb743ec271648623a7107 Mon Sep 17 00:00:00 2001 From: Hans de Goede Date: Fri, 2 Jun 2017 17:51:42 -0700 Subject: Input: axp20x-pek - add wakeup support 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 Signed-off-by: Dmitry Torokhov --- drivers/input/misc/axp20x-pek.c | 28 ++++++++++++++++++++++++++++ 1 file changed, 28 insertions(+) (limited to 'drivers/input/misc/axp20x-pek.c') diff --git a/drivers/input/misc/axp20x-pek.c b/drivers/input/misc/axp20x-pek.c index f11807db6979..d3e9ce27a2be 100644 --- a/drivers/input/misc/axp20x-pek.c +++ b/drivers/input/misc/axp20x-pek.c @@ -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); -- cgit v1.2.3-59-g8ed1b