From: patrick <patrick@openbsd.org>
Date: Thu, 10 Nov 2022 16:20:54 +0000 (+0000)
Subject: Apparently we receive interrupts for both powerkey press and release, which
X-Git-Url: http://artulab.com/gitweb/?a=commitdiff_plain;h=2da809330b846850adb44772016fa9d334f78392;p=openbsd

Apparently we receive interrupts for both powerkey press and release, which
isn't quite helpful when it's used to come back from suspend and then the
second interrupt initiates powerdown.  Ignore press, but handle release.

ok kettenis@
---

diff --git a/sys/dev/fdt/qcpon.c b/sys/dev/fdt/qcpon.c
index 0e23d507eb1..ee1f387cedb 100644
--- a/sys/dev/fdt/qcpon.c
+++ b/sys/dev/fdt/qcpon.c
@@ -1,4 +1,4 @@
-/*	$OpenBSD: qcpon.c,v 1.1 2022/11/08 19:44:28 patrick Exp $	*/
+/*	$OpenBSD: qcpon.c,v 1.2 2022/11/10 16:20:54 patrick Exp $	*/
 /*
  * Copyright (c) 2022 Patrick Wildt <patrick@blueri.se>
  *
@@ -40,6 +40,7 @@ struct qcpon_softc {
 	int8_t			sc_sid;
 
 	void			*sc_pwrkey_ih;
+	int			sc_pwrkey_debounce;
 	struct task		sc_powerdown_task;
 };
 
@@ -104,6 +105,11 @@ qcpon_pwrkey_intr(void *arg)
 {
 	struct qcpon_softc *sc = arg;
 
+	/* Ignore presses, handle releases. */
+	sc->sc_pwrkey_debounce = (sc->sc_pwrkey_debounce + 1) % 2;
+	if (sc->sc_pwrkey_debounce == 1)
+		return 1;
+
 	task_add(systq, &sc->sc_powerdown_task);
 	return 1;
 }