Follow r261352 by updating all drivers which are children of simplebus

to check the status property in their probe routines.

Simplebus used to only instantiate its children whose status="okay"
but that was improper behavior, fixed in r261352.  Now that it doesn't
check anymore and probes all its children; the children all have to
do the check because really only the children know how to properly
interpret their status property strings.

Right now all existing drivers only understand "okay" versus something-
that's-not-okay, so they all use the new ofw_bus_status_okay() helper.

1 files changed, 4 insertions, 0 deletions

diff --git a/sys/arm/allwinner/a10_clk.c b/sys/arm/allwinner/a10_clk.c
index 8518c74..aca137d 100644
--- a/sys/arm/allwinner/a10_clk.c
+++ b/sys/arm/allwinner/a10_clk.c
@@ -69,6 +69,10 @@ static struct a10_ccm_softc *a10_ccm_sc = NULL;
 static int
 a10_ccm_probe(device_t dev)
 {
+
+	if (!ofw_bus_status_okay(dev))
+		return (ENXIO);
+
 	if (ofw_bus_is_compatible(dev, "allwinner,sun4i-ccm")) {
 		device_set_desc(dev, "Allwinner Clock Control Module");
 		return(BUS_PROBE_DEFAULT);