This is a note to let you know that I've just added the patch titled
iio: mma8452: Fix ignoring MMA8452_INT_DRDY
to my staging git tree which can be found at git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging.git in the staging-linus branch.
The patch will show up in the next release of the linux-next tree (usually sometime within the next 24 hours during the week.)
The patch will hopefully also be merged in Linus's tree for the next -rc kernel release.
If you have any questions about this process, please let me know.
From b02ec67a8e38875cdc5f9214be885022f11c0017 Mon Sep 17 00:00:00 2001
From: Leonard Crestez leonard.crestez@nxp.com Date: Thu, 7 Jun 2018 21:52:50 +0300 Subject: iio: mma8452: Fix ignoring MMA8452_INT_DRDY
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 leonard.crestez@nxp.com cc: Stable@vger.kernel.org Signed-off-by: Jonathan Cameron Jonathan.Cameron@huawei.com --- 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 7e3d82cff3d5..c149c9c360fc 100644 --- a/drivers/iio/accel/mma8452.c +++ b/drivers/iio/accel/mma8452.c @@ -1053,7 +1053,7 @@ 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) {