From 19dc0ed2e4009d3bb72a7be124fd8a75ffdd01e2 Mon Sep 17 00:00:00 2001 From: Leonard Crestez Date: Thu, 7 Jun 2018 21:52:50 +0300 Subject: [PATCH] iio: mma8452: Fix ignoring MMA8452_INT_DRDY commit b02ec67a8e38875cdc5f9214be885022f11c0017 upstream. Interrupts are ignored if no event bit is set in the status status register and this breaks the buffer interface. No data is shown when running "iio_generic_buffer -n mma8451 -a" and interrupt counts go crazy. Fix by not returning IRQ_NONE if DRDY is set. Fixes: 605f72de137a ("iio: accel: mma8452: improvements to handle multiple events") Signed-off-by: Leonard Crestez cc: Signed-off-by: Jonathan Cameron Signed-off-by: Greg Kroah-Hartman --- drivers/iio/accel/mma8452.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/iio/accel/mma8452.c b/drivers/iio/accel/mma8452.c index 7a2da7f9d4dc..5485b35fe553 100644 --- a/drivers/iio/accel/mma8452.c +++ b/drivers/iio/accel/mma8452.c @@ -1034,7 +1034,7 @@ static irqreturn_t mma8452_interrupt(int irq, void *p) if (src < 0) return IRQ_NONE; - if (!(src & data->chip_info->enabled_events)) + if (!(src & (data->chip_info->enabled_events | MMA8452_INT_DRDY))) return IRQ_NONE; if (src & MMA8452_INT_DRDY) {