iio: st_accel: fix interrupt handling on LIS3LV02

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@st.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/iio/accel/st_accel_core.c b/drivers/iio/accel/st_accel_core.c
index 4002e6410444e780f5258813ceb600cd5a9b04c2..c472477f9a7d95085e3310ce3e4ffcda653a0745 100644 (file)
--- 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
 #define ST_ACCEL_4_MULTIREAD_BIT               true
 
 /* CUSTOM VALUES FOR SENSOR 5 */
@@ -484,10 +482,6 @@ static const struct st_sensor_settings st_accel_sensors_settings[] = {
                .drdy_irq = {
                        .addr = ST_ACCEL_4_DRDY_IRQ_ADDR,
                        .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 */