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Code Issues Releases Activity

make acpi_hp device a child of acpi_wmi

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to properly reflect dependency between the devices/drivers

PR:		kern/147858
Suggested by:	jhb
Tested by:	Maciej Suszko <maciej@suszko.eu>
MFC after:	1 week
This commit is contained in:
Andriy Gapon 2010-09-11 08:09:14 +00:00
parent dc5b8c2ee7
commit f5aadc99a6
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=212457
2 changed files with 12 additions and 25 deletions
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28
sys/dev/acpi_support/acpi_hp.c
View File

@ -49,7 +49,6 @@ __FBSDID("$FreeBSD$");
#include <sys/uio.h>
#include <sys/proc.h>
#include <sys/kernel.h>
#include <sys/limits.h>
#include <sys/bus.h>
#include <sys/sbuf.h>
#include <sys/module.h>
@ -336,7 +335,7 @@ static driver_t acpi_hp_driver = {
static devclass_t acpi_hp_devclass;
DRIVER_MODULE(acpi_hp, acpi, acpi_hp_driver, acpi_hp_devclass,
DRIVER_MODULE(acpi_hp, acpi_wmi, acpi_hp_driver, acpi_hp_devclass,
0, 0);
MODULE_DEPEND(acpi_hp, acpi_wmi, 1, 1, 1);
MODULE_DEPEND(acpi_hp, acpi, 1, 1, 1);
@ -453,16 +452,7 @@ acpi_hp_identify(driver_t *driver, device_t parent)
if (device_find_child(parent, "acpi_hp", -1) != NULL)
return;
/* Make sure acpi_wmi driver is present. */
if (devclass_find("acpi_wmi") == NULL)
return;
/*
* Add our device with late order, so that it is hopefully
* probed after acpi_wmi.
* XXX User proper constant instead of UINT_MAX for order.
*/
if (BUS_ADD_CHILD(parent, UINT_MAX, "acpi_hp", -1) == NULL)
if (BUS_ADD_CHILD(parent, 0, "acpi_hp", -1) == NULL)
device_printf(parent, "add acpi_hp child failed\n");
}
@ -470,11 +460,7 @@ static int
acpi_hp_probe(device_t dev)
{
/* Skip auto-enumerated devices from ACPI namespace. */
if (acpi_get_handle(dev) != NULL)
return (ENXIO);
device_set_desc(dev, "HP ACPI-WMI Mapping");
return (0);
}
@ -482,7 +468,6 @@ static int
acpi_hp_attach(device_t dev)
{
struct acpi_hp_softc *sc;
devclass_t wmi_devclass;
int arg;
ACPI_FUNCTION_TRACE((char *)(uintptr_t) __func__);
@ -505,14 +490,7 @@ acpi_hp_attach(device_t dev)
sc->verbose = 0;
memset(sc->cmi_order, 0, sizeof(sc->cmi_order));
if (!(wmi_devclass = devclass_find("acpi_wmi"))) {
device_printf(dev, "Couldn't find acpi_wmi devclass\n");
return (EINVAL);
}
if (!(sc->wmi_dev = devclass_get_device(wmi_devclass, 0))) {
device_printf(dev, "Couldn't find acpi_wmi device\n");
return (EINVAL);
}
sc->wmi_dev = device_get_parent(dev);
if (!ACPI_WMI_PROVIDES_GUID_STRING(sc->wmi_dev,
ACPI_HP_WMI_BIOS_GUID)) {
device_printf(dev,

9
sys/dev/acpi_support/acpi_wmi.c
View File

@ -173,6 +173,10 @@ static device_method_t acpi_wmi_methods[] = {
DEVMETHOD(device_attach, acpi_wmi_attach),
DEVMETHOD(device_detach, acpi_wmi_detach),
/* bus interface */
DEVMETHOD(bus_add_child, bus_generic_add_child),
DEVMETHOD(bus_print_child, bus_generic_print_child),
/* acpi_wmi interface */
DEVMETHOD(acpi_wmi_provides_guid_string,
acpi_wmi_provides_guid_string_method),
@ -269,6 +273,11 @@ acpi_wmi_attach(device_t dev)
}
ACPI_SERIAL_END(acpi_wmi);
if (ret == 0) {
bus_generic_probe(dev);
ret = bus_generic_attach(dev);
}
return (ret);
}