This occurs frequently if we are in edge triggered mode as we must poll the interrupt status register until we get no more interrupts so it's worth the effort - it means we skip writing null acknowledgements to the chip.
Signed-off-by: Mark Brown broonie@opensource.wolfsonmicro.com --- sound/soc/codecs/wm8996.c | 8 ++++---- 1 files changed, 4 insertions(+), 4 deletions(-)
diff --git a/sound/soc/codecs/wm8996.c b/sound/soc/codecs/wm8996.c index d3277d1..73a1588 100644 --- a/sound/soc/codecs/wm8996.c +++ b/sound/soc/codecs/wm8996.c @@ -2416,6 +2416,9 @@ static irqreturn_t wm8996_irq(int irq, void *data) } irq_val &= ~snd_soc_read(codec, WM8996_INTERRUPT_STATUS_2_MASK);
+ if (!irq_val) + return IRQ_NONE; + snd_soc_write(codec, WM8996_INTERRUPT_STATUS_2, irq_val);
if (irq_val & (WM8996_DCS_DONE_01_EINT | WM8996_DCS_DONE_23_EINT)) { @@ -2434,10 +2437,7 @@ static irqreturn_t wm8996_irq(int irq, void *data) if (irq_val & WM8996_MICD_EINT) wm8996_micd(codec);
- if (irq_val) - return IRQ_HANDLED; - else - return IRQ_NONE; + return IRQ_HANDLED; }
static irqreturn_t wm8996_edge_irq(int irq, void *data)