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ASoC: Support edge triggered IRQs for WM8915

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Really this should be something the IRQ core can cope with for us but since
it doesn't currently do so (at least for threaded interrupts like this) do
so in the driver. This allows us to run with interrupt controllers that
only support edge triggered interrupts.

Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Acked-by: Liam Girdwood <lrg@ti.com>
This commit is contained in:
Mark Brown 2011-06-01 14:45:58 +01:00
parent 37aa716a57
commit a1e9adc00e
1 changed files with 22 additions and 2 deletions
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24
sound/soc/codecs/wm8915.c
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@ -2382,6 +2382,20 @@ static irqreturn_t wm8915_irq(int irq, void *data)
}
}
static irqreturn_t wm8915_edge_irq(int irq, void *data)
{
irqreturn_t ret = IRQ_NONE;
irqreturn_t val;
do {
val = wm8915_irq(irq, data);
if (val != IRQ_NONE)
ret = val;
} while (val != IRQ_NONE);
return ret;
}
static void wm8915_retune_mobile_pdata(struct snd_soc_codec *codec)
{
struct wm8915_priv *wm8915 = snd_soc_codec_get_drvdata(codec);
@ -2708,8 +2722,14 @@ static int wm8915_probe(struct snd_soc_codec *codec)
irq_flags |= IRQF_ONESHOT;
ret = request_threaded_irq(i2c->irq, NULL, wm8915_irq,
irq_flags, "wm8915", codec);
if (irq_flags & (IRQF_TRIGGER_RISING | IRQF_TRIGGER_FALLING))
ret = request_threaded_irq(i2c->irq, NULL,
wm8915_edge_irq,
irq_flags, "wm8915", codec);
else
ret = request_threaded_irq(i2c->irq, NULL, wm8915_irq,
irq_flags, "wm8915", codec);
if (ret == 0) {
/* Unmask the interrupt */
snd_soc_update_bits(codec, WM8915_INTERRUPT_CONTROL,