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| author | Thomas Gleixner <tglx@linutronix.de> | 2011-03-25 16:07:51 +0100 |
|---|---|---|
| committer | Thomas Gleixner <tglx@linutronix.de> | 2011-03-29 14:48:09 +0200 |
| commit | a28ab38c440d0391d8a3673514e4cfb079445309 (patch) | |
| tree | f5ceb1401f4ffe872086a02e021b9bd6cb870095 | |
| parent | 00e70bad1abba1f96f7b9e6454b222f393e5281f (diff) | |
| download | linux-stable-a28ab38c440d0391d8a3673514e4cfb079445309.tar.gz linux-stable-a28ab38c440d0391d8a3673514e4cfb079445309.tar.bz2 linux-stable-a28ab38c440d0391d8a3673514e4cfb079445309.zip | |
powerpc: cpm2_pic: Cleanup flow type handling
The core irq_set_type() function updates the flow type when the chip
callback returns 0. So setting the type is bogus.
The new core code allows to update the type in irq_data and return
IRQ_SET_MASK_OK_NOCOPY, so the core code will not touch it, except for
setting the IRQ_LEVEL flag.
Use the proper accessors for setting the irq handlers.
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
| -rw-r--r-- | arch/powerpc/sysdev/cpm2_pic.c | 18 |
1 files changed, 8 insertions, 10 deletions
diff --git a/arch/powerpc/sysdev/cpm2_pic.c b/arch/powerpc/sysdev/cpm2_pic.c index 8ffe164e95ad..bda0e5b8ce21 100644 --- a/arch/powerpc/sysdev/cpm2_pic.c +++ b/arch/powerpc/sysdev/cpm2_pic.c @@ -140,7 +140,6 @@ static void cpm2_end_irq(struct irq_data *d) static int cpm2_set_irq_type(struct irq_data *d, unsigned int flow_type) { unsigned int src = virq_to_hw(d->irq); - struct irq_desc *desc = irq_to_desc(d->irq); unsigned int vold, vnew, edibit; /* Port C interrupts are either IRQ_TYPE_EDGE_FALLING or @@ -162,13 +161,11 @@ static int cpm2_set_irq_type(struct irq_data *d, unsigned int flow_type) goto err_sense; } - desc->status &= ~(IRQ_TYPE_SENSE_MASK | IRQ_LEVEL); - desc->status |= flow_type & IRQ_TYPE_SENSE_MASK; - if (flow_type & IRQ_TYPE_LEVEL_LOW) { - desc->status |= IRQ_LEVEL; - desc->handle_irq = handle_level_irq; - } else - desc->handle_irq = handle_edge_irq; + irqd_set_trigger_type(d, flow_type); + if (flow_type & IRQ_TYPE_LEVEL_LOW) + __set_irq_handler_unlocked(d->irq, handle_level_irq); + else + __set_irq_handler_unlocked(d->irq, handle_edge_irq); /* internal IRQ senses are LEVEL_LOW * EXT IRQ and Port C IRQ senses are programmable @@ -179,7 +176,8 @@ static int cpm2_set_irq_type(struct irq_data *d, unsigned int flow_type) if (src >= CPM2_IRQ_PORTC15 && src <= CPM2_IRQ_PORTC0) edibit = (31 - (CPM2_IRQ_PORTC0 - src)); else - return (flow_type & IRQ_TYPE_LEVEL_LOW) ? 0 : -EINVAL; + return (flow_type & IRQ_TYPE_LEVEL_LOW) ? + IRQ_SET_MASK_OK_NOCOPY : -EINVAL; vold = in_be32(&cpm2_intctl->ic_siexr); @@ -190,7 +188,7 @@ static int cpm2_set_irq_type(struct irq_data *d, unsigned int flow_type) if (vold != vnew) out_be32(&cpm2_intctl->ic_siexr, vnew); - return 0; + return IRQ_SET_MASK_OK_NOCOPY; err_sense: pr_err("CPM2 PIC: sense type 0x%x not supported\n", flow_type); |