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| author | Michael Ellerman <michael@ellerman.id.au> | 2007-08-28 18:47:54 +1000 |
|---|---|---|
| committer | Paul Mackerras <paulus@samba.org> | 2007-09-14 01:33:20 +1000 |
| commit | 52964f87c64e6c6ea671b5bf3030fb1494090a48 (patch) | |
| tree | 2e20d81bc05b60b7108733daf5713ea640ad2477 /arch/powerpc/sysdev/mpc8xx_pic.c | |
| parent | 0ae0b54565a8dcc2b98de694b998e765de15b713 (diff) | |
| download | op-kernel-dev-52964f87c64e6c6ea671b5bf3030fb1494090a48.zip op-kernel-dev-52964f87c64e6c6ea671b5bf3030fb1494090a48.tar.gz | |
[POWERPC] Add an optional device_node pointer to the irq_host
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>
Diffstat (limited to 'arch/powerpc/sysdev/mpc8xx_pic.c')
| -rw-r--r-- | arch/powerpc/sysdev/mpc8xx_pic.c | 19 |
1 files changed, 10 insertions, 9 deletions
diff --git a/arch/powerpc/sysdev/mpc8xx_pic.c b/arch/powerpc/sysdev/mpc8xx_pic.c index 2fc2bcd..f20a4d4 100644 --- a/arch/powerpc/sysdev/mpc8xx_pic.c +++ b/arch/powerpc/sysdev/mpc8xx_pic.c @@ -19,7 +19,6 @@ extern int cpm_get_irq(struct pt_regs *regs); -static struct device_node *mpc8xx_pic_node; static struct irq_host *mpc8xx_pic_host; #define NR_MASK_WORDS ((NR_IRQS + 31) / 32) static unsigned long ppc_cached_irq_mask[NR_MASK_WORDS]; @@ -122,7 +121,7 @@ unsigned int mpc8xx_get_irq(void) static int mpc8xx_pic_host_match(struct irq_host *h, struct device_node *node) { - return mpc8xx_pic_node == node; + return h->of_node == node; } static int mpc8xx_pic_host_map(struct irq_host *h, unsigned int virq, @@ -176,22 +175,24 @@ int mpc8xx_pic_init(void) return -ENOMEM; } - mpc8xx_pic_node = of_node_get(np); - ret = of_address_to_resource(np, 0, &res); - of_node_put(np); if (ret) - return ret; + goto out; siu_reg = (void *)ioremap(res.start, res.end - res.start + 1); - if (siu_reg == NULL) - return -EINVAL; + if (siu_reg == NULL) { + ret = -EINVAL; + goto out; + } - mpc8xx_pic_host = irq_alloc_host(IRQ_HOST_MAP_LINEAR, 64, &mpc8xx_pic_host_ops, 64); + mpc8xx_pic_host = irq_alloc_host(of_node_get(np), IRQ_HOST_MAP_LINEAR, + 64, &mpc8xx_pic_host_ops, 64); if (mpc8xx_pic_host == NULL) { printk(KERN_ERR "MPC8xx PIC: failed to allocate irq host!\n"); ret = -ENOMEM; } +out: + of_node_put(np); return ret; } |
