[PATCH 4.1 36/86] iio: st_accel: fix interrupt handling on LIS3LV02

From: Greg Kroah-Hartman
Date: Fri Nov 06 2015 - 15:04:07 EST

4.1-stable review patch. If anyone has any objections, please let me know.


From: Linus Walleij <linus.walleij@xxxxxxxxxx>

commit 61fd56309165d4790f99462d893b099f0b07312a upstream.

This accelerometer accidentally either emits a DRDY signal or an
IRQ signal. Accidentally I activated the IRQ signal as I thought
it was analogous to the interrupt generator on other ST
accelerometers. This was wrong. After this patch generic_buffer
gives a nice stream of accelerometer readings.

Fixes: 3acddf74f807778f "iio: st-sensors: add support for lis3lv02d accelerometer"
Cc: Denis CIOCCA <denis.ciocca@xxxxxx>
Signed-off-by: Linus Walleij <linus.walleij@xxxxxxxxxx>
Signed-off-by: Jonathan Cameron <jic23@xxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>

drivers/iio/accel/st_accel_core.c | 6 ------
1 file changed, 6 deletions(-)

--- a/drivers/iio/accel/st_accel_core.c
+++ b/drivers/iio/accel/st_accel_core.c
@@ -149,8 +149,6 @@
#define ST_ACCEL_4_BDU_MASK 0x40
#define ST_ACCEL_4_DRDY_IRQ_ADDR 0x21
#define ST_ACCEL_4_DRDY_IRQ_INT1_MASK 0x04
-#define ST_ACCEL_4_IG1_EN_ADDR 0x21
-#define ST_ACCEL_4_IG1_EN_MASK 0x08

static const struct iio_chan_spec st_accel_12bit_channels[] = {
@@ -446,10 +444,6 @@ static const struct st_sensor_settings s
.drdy_irq = {
.mask_int1 = ST_ACCEL_4_DRDY_IRQ_INT1_MASK,
- .ig1 = {
- .en_addr = ST_ACCEL_4_IG1_EN_ADDR,
- .en_mask = ST_ACCEL_4_IG1_EN_MASK,
- },
.multi_read_bit = ST_ACCEL_4_MULTIREAD_BIT,
.bootime = 2, /* guess */

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