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 0e23d50..ee1f387 100644 (file)
--- 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;
 }