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Add a bus_probe_nomatch() method for gpiobus/ofw_gpiobus.

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This prints a warning when your system have a hinted child or a FDT child
node for which you don't have a matching driver:

gpiobus0: <unknown device> at pin(s) 24 irq 24
This commit is contained in:
loos 2015-03-05 01:49:58 +00:00
parent 61b9798759
commit aa6f296074
1 changed files with 16 additions and 0 deletions
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16
sys/dev/gpio/gpiobus.c
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@ -53,6 +53,7 @@ static int gpiobus_attach(device_t);
static int gpiobus_detach(device_t);
static int gpiobus_suspend(device_t);
static int gpiobus_resume(device_t);
static void gpiobus_probe_nomatch(device_t, device_t);
static int gpiobus_print_child(device_t, device_t);
static int gpiobus_child_location_str(device_t, device_t, char *, size_t);
static int gpiobus_child_pnpinfo_str(device_t, device_t, char *, size_t);
@ -363,6 +364,20 @@ gpiobus_resume(device_t dev)
return (bus_generic_resume(dev));
}
static void
gpiobus_probe_nomatch(device_t dev, device_t child)
{
char pins[128];
struct gpiobus_ivar *devi;
devi = GPIOBUS_IVAR(child);
memset(pins, 0, sizeof(pins));
gpiobus_print_pins(devi, pins, sizeof(pins));
device_printf(dev, "<unknown device> at pin(s) %s", pins);
resource_list_print_type(&devi->rl, "irq", SYS_RES_IRQ, "%ld");
printf("\n");
}
static int
gpiobus_print_child(device_t dev, device_t child)
{
@ -670,6 +685,7 @@ static device_method_t gpiobus_methods[] = {
DEVMETHOD(bus_deactivate_resource, bus_generic_deactivate_resource),
DEVMETHOD(bus_get_resource_list, gpiobus_get_resource_list),
DEVMETHOD(bus_add_child, gpiobus_add_child),
DEVMETHOD(bus_probe_nomatch, gpiobus_probe_nomatch),
DEVMETHOD(bus_print_child, gpiobus_print_child),
DEVMETHOD(bus_child_pnpinfo_str, gpiobus_child_pnpinfo_str),
DEVMETHOD(bus_child_location_str, gpiobus_child_location_str),