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From fbac4c05ec1d7c2d949f50baf1e934cbfbb6a494 Mon Sep 17 00:00:00 2001
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From: Hans de Goede <hdegoede@redhat.com>
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Date: Mon, 17 Apr 2017 22:06:25 +0200
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Subject: [PATCH 06/16] Input: axp20x-pek - Add wakeup support
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At least on devices with the AXP288 PMIC the device is expected to
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wakeup from suspend when the power-button gets pressed, add support
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for this.
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Signed-off-by: Hans de Goede <hdegoede@redhat.com>
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---
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drivers/input/misc/axp20x-pek.c | 28 ++++++++++++++++++++++++++++
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1 file changed, 28 insertions(+)
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diff --git a/drivers/input/misc/axp20x-pek.c b/drivers/input/misc/axp20x-pek.c
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index 400869e61a06..5f16fceaae83 100644
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--- a/drivers/input/misc/axp20x-pek.c
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+++ b/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,
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return error;
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}
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+ if (axp20x_pek->axp20x->variant == AXP288_ID)
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+ enable_irq_wake(axp20x_pek->irq_dbr);
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+
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return 0;
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}
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@@ -331,10 +334,35 @@ static int axp20x_pek_probe(struct platform_device *pdev)
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return 0;
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}
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+static int __maybe_unused axp20x_pek_resume_noirq(struct device *dev)
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+{
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+ struct axp20x_pek *axp20x_pek = dev_get_drvdata(dev);
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+
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+ if (axp20x_pek->axp20x->variant != AXP288_ID)
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+ return 0;
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+
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+ /*
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+ * Clear interrupts from button presses during suspend, to avoid
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+ * a wakeup power-button press getting reported to userspace.
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+ */
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+ regmap_write(axp20x_pek->axp20x->regmap,
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+ AXP20X_IRQ1_STATE + AXP288_IRQ_POKN / 8,
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+ BIT(AXP288_IRQ_POKN % 8));
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+
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+ return 0;
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+}
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+
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+const struct dev_pm_ops axp20x_pek_pm_ops = {
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+#ifdef CONFIG_PM_SLEEP
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+ .resume_noirq = axp20x_pek_resume_noirq,
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+#endif
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+};
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+
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static struct platform_driver axp20x_pek_driver = {
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.probe = axp20x_pek_probe,
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.driver = {
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.name = "axp20x-pek",
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+ .pm = &axp20x_pek_pm_ops,
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},
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};
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module_platform_driver(axp20x_pek_driver);
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--
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2.13.0
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