diff options
Diffstat (limited to 'arch/powerpc/platforms/512x/mpc5121_ads_cpld.c')
-rw-r--r-- | arch/powerpc/platforms/512x/mpc5121_ads_cpld.c | 23 |
1 files changed, 10 insertions, 13 deletions
diff --git a/arch/powerpc/platforms/512x/mpc5121_ads_cpld.c b/arch/powerpc/platforms/512x/mpc5121_ads_cpld.c index b2981634f1f8..ea46870e5d6e 100644 --- a/arch/powerpc/platforms/512x/mpc5121_ads_cpld.c +++ b/arch/powerpc/platforms/512x/mpc5121_ads_cpld.c @@ -81,11 +81,10 @@ static struct irq_chip cpld_pic = { .irq_unmask = cpld_unmask_irq, }; -static int +static unsigned int cpld_pic_get_irq(int offset, u8 ignore, u8 __iomem *statusp, u8 __iomem *maskp) { - int cpld_irq; u8 status = in_8(statusp); u8 mask = in_8(maskp); @@ -93,28 +92,26 @@ cpld_pic_get_irq(int offset, u8 ignore, u8 __iomem *statusp, status |= (ignore | mask); if (status == 0xff) - return 0; - - cpld_irq = ffz(status) + offset; + return ~0; - return irq_linear_revmap(cpld_pic_host, cpld_irq); + return ffz(status) + offset; } static void cpld_pic_cascade(struct irq_desc *desc) { - unsigned int irq; + unsigned int hwirq; - irq = cpld_pic_get_irq(0, PCI_IGNORE, &cpld_regs->pci_status, + hwirq = cpld_pic_get_irq(0, PCI_IGNORE, &cpld_regs->pci_status, &cpld_regs->pci_mask); - if (irq) { - generic_handle_irq(irq); + if (hwirq != ~0) { + generic_handle_domain_irq(cpld_pic_host, hwirq); return; } - irq = cpld_pic_get_irq(8, MISC_IGNORE, &cpld_regs->misc_status, + hwirq = cpld_pic_get_irq(8, MISC_IGNORE, &cpld_regs->misc_status, &cpld_regs->misc_mask); - if (irq) { - generic_handle_irq(irq); + if (hwirq != ~0) { + generic_handle_domain_irq(cpld_pic_host, hwirq); return; } } |