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[POWERPC] Add an optional device_node pointer to the irq_host

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The majority of irq_host implementations (3 out of 4) are associated
with a device_node, and need to stash it somewhere. Rather than having
it somewhere different for each host, add an optional device_node pointer
to the irq_host structure.

Signed-off-by: Michael Ellerman <michael@ellerman.id.au>
Signed-off-by: Paul Mackerras <paulus@samba.org>
This commit is contained in:
Michael Ellerman
2007-08-28 18:47:54 +10:00
committed by Paul Mackerras
parent 0ae0b54565
commit 52964f87c6
26 changed files with 76 additions and 109 deletions
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8
arch/powerpc/sysdev/tsi108_pci.c
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@@ -52,7 +52,6 @@
u32 tsi108_pci_cfg_base;
static u32 tsi108_pci_cfg_phys;
u32 tsi108_csr_vir_base;
static struct device_node *pci_irq_node;
static struct irq_host *pci_irq_host;
extern u32 get_vir_csrbase(void);
@@ -407,7 +406,7 @@ static int pci_irq_host_map(struct irq_host *h, unsigned int virq,
static int pci_irq_host_match(struct irq_host *h, struct device_node *node)
{
return pci_irq_node == node;
return h->of_node == node;
}
static struct irq_host_ops pci_irq_host_ops = {
@@ -433,10 +432,11 @@ void __init tsi108_pci_int_init(struct device_node *node)
{
DBG("Tsi108_pci_int_init: initializing PCI interrupts\n");
pci_irq_node = of_node_get(node);
pci_irq_host = irq_alloc_host(IRQ_HOST_MAP_LEGACY, 0, &pci_irq_host_ops, 0);
pci_irq_host = irq_alloc_host(of_node_get(node), IRQ_HOST_MAP_LEGACY,
0, &pci_irq_host_ops, 0);
if (pci_irq_host == NULL) {
printk(KERN_ERR "pci_irq_host: failed to allocate irq host !\n");
of_node_put(node);
return;
}