[POWERPC] 83xx: Return a point to the struct ipic from ipic_init()
It's useful to have access to struct ipic handle that just got created in ipic_init(). For example, if we want to setup an external IRQ with out a device node we need access ipic->irqhost to create the virtual to HW IRQ mapping and to set the IRQ sense. With this we can mimic the old sense array concept that existed in arch/ppc. Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
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@ -557,8 +557,7 @@ static struct irq_host_ops ipic_host_ops = {
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.xlate = ipic_host_xlate,
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.xlate = ipic_host_xlate,
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};
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};
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void __init ipic_init(struct device_node *node,
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struct ipic * __init ipic_init(struct device_node *node, unsigned int flags)
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unsigned int flags)
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{
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{
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struct ipic *ipic;
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struct ipic *ipic;
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struct resource res;
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struct resource res;
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@ -566,7 +565,7 @@ void __init ipic_init(struct device_node *node,
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ipic = alloc_bootmem(sizeof(struct ipic));
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ipic = alloc_bootmem(sizeof(struct ipic));
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if (ipic == NULL)
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if (ipic == NULL)
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return;
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return NULL;
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memset(ipic, 0, sizeof(struct ipic));
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memset(ipic, 0, sizeof(struct ipic));
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ipic->of_node = of_node_get(node);
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ipic->of_node = of_node_get(node);
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@ -576,12 +575,14 @@ void __init ipic_init(struct device_node *node,
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&ipic_host_ops, 0);
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&ipic_host_ops, 0);
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if (ipic->irqhost == NULL) {
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if (ipic->irqhost == NULL) {
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of_node_put(node);
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of_node_put(node);
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return;
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return NULL;
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}
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}
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ret = of_address_to_resource(node, 0, &res);
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ret = of_address_to_resource(node, 0, &res);
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if (ret)
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if (ret) {
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return;
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of_node_put(node);
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return NULL;
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}
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ipic->regs = ioremap(res.start, res.end - res.start + 1);
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ipic->regs = ioremap(res.start, res.end - res.start + 1);
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@ -625,6 +626,8 @@ void __init ipic_init(struct device_node *node,
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printk ("IPIC (%d IRQ sources) at %p\n", NR_IPIC_INTS,
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printk ("IPIC (%d IRQ sources) at %p\n", NR_IPIC_INTS,
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primary_ipic->regs);
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primary_ipic->regs);
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return ipic;
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}
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}
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int ipic_set_priority(unsigned int virq, unsigned int priority)
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int ipic_set_priority(unsigned int virq, unsigned int priority)
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@ -78,7 +78,7 @@ extern u32 ipic_get_mcp_status(void);
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extern void ipic_clear_mcp_status(u32 mask);
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extern void ipic_clear_mcp_status(u32 mask);
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#ifdef CONFIG_PPC_MERGE
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#ifdef CONFIG_PPC_MERGE
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extern void ipic_init(struct device_node *node, unsigned int flags);
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extern struct ipic * ipic_init(struct device_node *node, unsigned int flags);
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extern unsigned int ipic_get_irq(void);
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extern unsigned int ipic_get_irq(void);
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#else
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#else
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extern void ipic_init(phys_addr_t phys_addr, unsigned int flags,
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extern void ipic_init(phys_addr_t phys_addr, unsigned int flags,
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