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Code Issues Releases Activity

Postpone allocation of IRQ resource to the time when interrupt

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controller devices are attached. This has already been done for
bus_setup_intr().

There was no doubt that if someone wants to setup an interrupt,
corresponding interrupt controller device must already be attached.
However, the same must be valid for allocation of an interrupt resource
unless the allocation is done blindly, without any information that
such interrupt even exists. While it was done this blind way before,
it won't be possible after next INTRNG change.
This commit is contained in:
Svatopluk Kraus 2016-06-03 11:05:55 +00:00
parent 550d01a211
commit 4d7f3703e2
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=301266
1 changed files with 11 additions and 3 deletions
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14
sys/arm/freescale/imx/imx6_anatop.c
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@ -78,7 +78,6 @@ __FBSDID("$FreeBSD$");
static struct resource_spec imx6_anatop_spec[] = {
{ SYS_RES_MEMORY, 0, RF_ACTIVE },
{ SYS_RES_IRQ, 0, RF_ACTIVE },
{ -1, 0 }
};
#define MEMRES 0
@ -637,11 +636,20 @@ initialize_tempmon(struct imx6_anatop_softc *sc)
static void
intr_setup(void *arg)
{
int rid;
struct imx6_anatop_softc *sc;
sc = arg;
bus_setup_intr(sc->dev, sc->res[IRQRES], INTR_TYPE_MISC | INTR_MPSAFE,
tempmon_intr, NULL, sc, &sc->temp_intrhand);
rid = 0;
sc->res[IRQRES] = bus_alloc_resource_any(sc->dev, SYS_RES_IRQ, &rid,
RF_ACTIVE);
if (sc->res[IRQRES] != NULL) {
bus_setup_intr(sc->dev, sc->res[IRQRES],
INTR_TYPE_MISC | INTR_MPSAFE, tempmon_intr, NULL, sc,
&sc->temp_intrhand);
} else {
device_printf(sc->dev, "Cannot allocate IRQ resource\n");
}
config_intrhook_disestablish(&sc->intr_setup_hook);
}