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On the Lenovo X395 acpivout(4) does not attach since there is

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no _BQC method.  But we need it to attach, since it provides
the events for the brightness keys.  Thus, make acpivout(4)
attach enough to register the event handler, but return early
so that it doesn't register itself as ws_[gs]et_param.

ok kettenis@
This commit is contained in:
patrick
2020-02-08 19:08:17 +00:00
parent 084b5e9b10
commit d79a363e63
2 changed files with 7 additions and 6 deletions
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4
sys/dev/acpi/acpivideo.c
View File

@@ -1,4 +1,4 @@
/* $OpenBSD: acpivideo.c,v 1.11 2017/06/30 06:25:29 mlarkin Exp $ */
/* $OpenBSD: acpivideo.c,v 1.12 2020/02/08 19:08:17 patrick Exp $ */
/*
* Copyright (c) 2008 Federico G. Schwindt <fgsch@openbsd.org>
* Copyright (c) 2009 Paul Irofti <pirofti@openbsd.org>
@@ -149,7 +149,7 @@ acpi_foundvout(struct aml_node *node, void *arg)
if (node->parent != sc->sc_devnode)
return (0);
if (aml_searchname(node, "_BCM") && aml_searchname(node, "_BQC")) {
if (aml_searchname(node, "_BCM")) {
memset(&aaa, 0, sizeof(aaa));
aaa.aaa_iot = sc->sc_acpi->sc_iot;
aaa.aaa_memt = sc->sc_acpi->sc_memt;

9
sys/dev/acpi/acpivout.c
View File

@@ -1,4 +1,4 @@
/* $OpenBSD: acpivout.c,v 1.18 2020/01/28 14:06:16 patrick Exp $ */
/* $OpenBSD: acpivout.c,v 1.19 2020/02/08 19:08:17 patrick Exp $ */
/*
* Copyright (c) 2009 Paul Irofti <pirofti@openbsd.org>
*
@@ -96,9 +96,6 @@ acpivout_match(struct device *parent, void *match, void *aux)
aaa->aaa_table != NULL)
return (0);
if (ws_get_param || ws_set_param)
return (0);
return (1);
}
@@ -116,6 +113,10 @@ acpivout_attach(struct device *parent, struct device *self, void *aux)
aml_register_notify(sc->sc_devnode, aaa->aaa_dev,
acpivout_notify, sc, ACPIDEV_NOPOLL);
if (!aml_searchname(sc->sc_devnode, "_BQC") ||
ws_get_param || ws_set_param)
return;
ws_get_param = acpivout_get_param;
ws_set_param = acpivout_set_param;