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regmap: Report if we actually handled an interrupt in regmap-irq 

While the IRQ core doesn't currently support shared threaded interrupts
that's no reason for drivers not to do their bit and report IRQ_NONE when
they don't get an interrupt. This allows the core spurious/wedget interrupt
detection support to do its thing.

Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
This commit is contained in:
Mark Brown 2011-11-28 18:50:39 +00:00
parent f8beab2bb6
commit d23511f959
1 changed files with 6 additions and 1 deletions
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7
drivers/base/regmap/regmap-irq.c
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@ -100,6 +100,7 @@ static irqreturn_t regmap_irq_thread(int irq, void *d)
u8 *buf8 = data->status_reg_buf;
u16 *buf16 = data->status_reg_buf;
u32 *buf32 = data->status_reg_buf;
bool handled = false;
ret = regmap_bulk_read(map, chip->status_base, data->status_reg_buf,
chip->num_regs);
@ -146,10 +147,14 @@ static irqreturn_t regmap_irq_thread(int irq, void *d)
if (data->status_buf[chip->irqs[i].reg_offset] &
chip->irqs[i].mask) {
handle_nested_irq(data->irq_base + i);
handled = true;
}
}
return IRQ_HANDLED;
if (handled)
return IRQ_HANDLED;
else
return IRQ_NONE;
}
/**