[PATCH 2/2] input: axp20x-pek: Add wakeup support
From: Hans de Goede <hidden>
Date: 2017-05-19 14:06:35
Subsystem:
input (keyboard, mouse, joystick, touchscreen) drivers, the rest · Maintainers:
Dmitry Torokhov, Linus Torvalds
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 <redacted> --- drivers/input/misc/axp20x-pek.c | 28 ++++++++++++++++++++++++++++ 1 file changed, 28 insertions(+)
diff --git a/drivers/input/misc/axp20x-pek.c b/drivers/input/misc/axp20x-pek.c
index 3f1f9434eb9a..6b1998b2e436 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; }
@@ -317,10 +320,35 @@ 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; +} + +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);
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2.12.2