From 126186a055d965d5a7b1ab560e343ef70694f349 Mon Sep 17 00:00:00 2001 From: Kumar Gala Date: Fri, 26 Jan 2007 01:45:32 -0600 Subject: [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 --- arch/powerpc/sysdev/ipic.c | 15 +++++++++------ 1 file changed, 9 insertions(+), 6 deletions(-) (limited to 'arch') diff --git a/arch/powerpc/sysdev/ipic.c b/arch/powerpc/sysdev/ipic.c index 522aa14e8f0d..473c415e9e25 100644 --- a/arch/powerpc/sysdev/ipic.c +++ b/arch/powerpc/sysdev/ipic.c @@ -557,8 +557,7 @@ static struct irq_host_ops ipic_host_ops = { .xlate = ipic_host_xlate, }; -void __init ipic_init(struct device_node *node, - unsigned int flags) +struct ipic * __init ipic_init(struct device_node *node, unsigned int flags) { struct ipic *ipic; struct resource res; @@ -566,7 +565,7 @@ void __init ipic_init(struct device_node *node, ipic = alloc_bootmem(sizeof(struct ipic)); if (ipic == NULL) - return; + return NULL; memset(ipic, 0, sizeof(struct ipic)); ipic->of_node = of_node_get(node); @@ -576,12 +575,14 @@ void __init ipic_init(struct device_node *node, &ipic_host_ops, 0); if (ipic->irqhost == NULL) { of_node_put(node); - return; + return NULL; } ret = of_address_to_resource(node, 0, &res); - if (ret) - return; + if (ret) { + of_node_put(node); + return NULL; + } ipic->regs = ioremap(res.start, res.end - res.start + 1); @@ -625,6 +626,8 @@ void __init ipic_init(struct device_node *node, printk ("IPIC (%d IRQ sources) at %p\n", NR_IPIC_INTS, primary_ipic->regs); + + return ipic; } int ipic_set_priority(unsigned int virq, unsigned int priority) -- cgit v1.2.3