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Add a new quirk type so that the MacIO driver will assign memory resources

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belonging to a devices children, in analogy to the way we handle interrupts
for SCC serial devices. This is required to counteract overly deep nesting
on onboard audio devices.

Submitted by:	Marco Trillo
This commit is contained in:
nwhitehorn 2009-01-06 01:54:57 +00:00
parent a28ce6e833
commit c41f2ca87e
1 changed files with 8 additions and 2 deletions
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10
sys/powerpc/powermac/macio.c
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@ -152,6 +152,7 @@ static struct macio_pci_dev {
*/
#define MACIO_QUIRK_IGNORE 0x00000001
#define MACIO_QUIRK_CHILD_HAS_INTR 0x00000002
#define MACIO_QUIRK_USE_CHILD_REG 0x00000004
struct macio_quirk_entry {
const char *mq_name;
@ -162,7 +163,9 @@ static struct macio_quirk_entry macio_quirks[] = {
{ "escc-legacy", MACIO_QUIRK_IGNORE },
{ "timer", MACIO_QUIRK_IGNORE },
{ "escc", MACIO_QUIRK_CHILD_HAS_INTR },
{ NULL, 0 }
{ "i2s", MACIO_QUIRK_CHILD_HAS_INTR |
MACIO_QUIRK_USE_CHILD_REG },
{ NULL, 0 }
};
static int
@ -318,7 +321,10 @@ macio_attach(device_t dev)
resource_list_init(&dinfo->mdi_resources);
dinfo->mdi_ninterrupts = 0;
macio_add_intr(child, dinfo);
macio_add_reg(child, dinfo);
if ((quirks & MACIO_QUIRK_USE_CHILD_REG) != 0)
macio_add_reg(OF_child(child), dinfo);
else
macio_add_reg(child, dinfo);
if ((quirks & MACIO_QUIRK_CHILD_HAS_INTR) != 0)
for (subchild = OF_child(child); subchild != 0;
subchild = OF_peer(subchild))