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| author | David S. Miller <davem@davemloft.net> | 2009-03-27 17:19:16 -0700 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2009-03-27 17:19:16 -0700 |
| commit | a83398570e17af6bb81eb94f4f5dd356bd2828d8 (patch) | |
| tree | 5b5c7c3a56898485479291b7c964a1f3887d469c /arch/sh/cchips/hd6446x/hd64461.c | |
| parent | f9384d41c02408dd404aa64d66d0ef38adcf6479 (diff) | |
| parent | 0b4d569de222452bcb55a4a536ade6cf4d8d1e30 (diff) | |
Merge branch 'master' of /home/davem/src/GIT/linux-2.6/
Diffstat (limited to 'arch/sh/cchips/hd6446x/hd64461.c')
| -rw-r--r-- | arch/sh/cchips/hd6446x/hd64461.c | 30 |
1 files changed, 17 insertions, 13 deletions
diff --git a/arch/sh/cchips/hd6446x/hd64461.c b/arch/sh/cchips/hd6446x/hd64461.c index 27ceeb948bb1..25ef91061521 100644 --- a/arch/sh/cchips/hd6446x/hd64461.c +++ b/arch/sh/cchips/hd6446x/hd64461.c @@ -53,21 +53,22 @@ static struct irq_chip hd64461_irq_chip = { .unmask = hd64461_unmask_irq, }; -int hd64461_irq_demux(int irq) +static void hd64461_irq_demux(unsigned int irq, struct irq_desc *desc) { - if (irq == CONFIG_HD64461_IRQ) { - unsigned short bit; - unsigned short nirr = inw(HD64461_NIRR); - unsigned short nimr = inw(HD64461_NIMR); - int i; - - nirr &= ~nimr; - for (bit = 1, i = 0; i < 16; bit <<= 1, i++) - if (nirr & bit) - break; - irq = HD64461_IRQBASE + i; + unsigned short intv = ctrl_inw(HD64461_NIRR); + struct irq_desc *ext_desc; + unsigned int ext_irq = HD64461_IRQBASE; + + intv &= (1 << HD64461_IRQ_NUM) - 1; + + while (intv) { + if (intv & 1) { + ext_desc = irq_desc + ext_irq; + handle_level_irq(ext_irq, ext_desc); + } + intv >>= 1; + ext_irq++; } - return irq; } int __init setup_hd64461(void) @@ -93,6 +94,9 @@ int __init setup_hd64461(void) set_irq_chip_and_handler(i, &hd64461_irq_chip, handle_level_irq); + set_irq_chained_handler(CONFIG_HD64461_IRQ, hd64461_irq_demux); + set_irq_type(CONFIG_HD64461_IRQ, IRQ_TYPE_LEVEL_LOW); + #ifdef CONFIG_HD64461_ENABLER printk(KERN_INFO "HD64461: enabling PCMCIA devices\n"); __raw_writeb(0x4c, HD64461_PCC1CSCIER); |