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Allow hinted attachment on FDT-based systems. Instead of returning ENXIO

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when the FDT data doesn't enable the device instance, return
BUS_PROBE_NOWILDCARD, the same as for non-FDT systems.
This commit is contained in:
Ian Lepore 2018-04-08 17:06:30 +00:00
parent 3762bafa7b
commit bc7b44aeaf
1 changed files with 11 additions and 8 deletions
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19
sys/dev/spibus/spigen.c
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@ -79,16 +79,19 @@ spigen_probe(device_t dev)
{
int rv;
#ifdef FDT
if (!ofw_bus_status_okay(dev))
return (ENXIO);
if (!ofw_bus_is_compatible(dev, "freebsd,spigen"))
return (ENXIO);
rv = BUS_PROBE_DEFAULT;
#else
/*
* By default we only bid to attach if specifically added by our parent
* (usually via hint.spigen.#.at=busname). On FDT systems we bid as the
* default driver based on being configured in the FDT data.
*/
rv = BUS_PROBE_NOWILDCARD;
#ifdef FDT
if (ofw_bus_status_okay(dev) &&
ofw_bus_is_compatible(dev, "freebsd,spigen"))
rv = BUS_PROBE_DEFAULT;
#endif
device_set_desc(dev, "SPI Generic IO");
return (rv);