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path: root/drivers/iio/gyro/bmg160.c
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Diffstat (limited to 'drivers/iio/gyro/bmg160.c')
-rw-r--r--drivers/iio/gyro/bmg160.c53
1 files changed, 49 insertions, 4 deletions
diff --git a/drivers/iio/gyro/bmg160.c b/drivers/iio/gyro/bmg160.c
index 1f967e0d688e..d2fa526740ca 100644
--- a/drivers/iio/gyro/bmg160.c
+++ b/drivers/iio/gyro/bmg160.c
@@ -67,6 +67,9 @@
#define BMG160_REG_INT_EN_0 0x15
#define BMG160_DATA_ENABLE_INT BIT(7)
+#define BMG160_REG_INT_EN_1 0x16
+#define BMG160_INT1_BIT_OD BIT(1)
+
#define BMG160_REG_XOUT_L 0x02
#define BMG160_AXIS_TO_REG(axis) (BMG160_REG_XOUT_L + (axis * 2))
@@ -82,6 +85,9 @@
#define BMG160_REG_INT_STATUS_2 0x0B
#define BMG160_ANY_MOTION_MASK 0x07
+#define BMG160_ANY_MOTION_BIT_X BIT(0)
+#define BMG160_ANY_MOTION_BIT_Y BIT(1)
+#define BMG160_ANY_MOTION_BIT_Z BIT(2)
#define BMG160_REG_TEMP 0x08
#define BMG160_TEMP_CENTER_VAL 23
@@ -222,6 +228,19 @@ static int bmg160_chip_init(struct bmg160_data *data)
data->slope_thres = ret;
/* Set default interrupt mode */
+ ret = i2c_smbus_read_byte_data(data->client, BMG160_REG_INT_EN_1);
+ if (ret < 0) {
+ dev_err(&data->client->dev, "Error reading reg_int_en_1\n");
+ return ret;
+ }
+ ret &= ~BMG160_INT1_BIT_OD;
+ ret = i2c_smbus_write_byte_data(data->client,
+ BMG160_REG_INT_EN_1, ret);
+ if (ret < 0) {
+ dev_err(&data->client->dev, "Error writing reg_int_en_1\n");
+ return ret;
+ }
+
ret = i2c_smbus_write_byte_data(data->client,
BMG160_REG_INT_RST_LATCH,
BMG160_INT_MODE_LATCH_INT |
@@ -250,6 +269,9 @@ static int bmg160_set_power_state(struct bmg160_data *data, bool on)
if (ret < 0) {
dev_err(&data->client->dev,
"Failed: bmg160_set_power_state for %d\n", on);
+ if (on)
+ pm_runtime_put_noidle(&data->client->dev);
+
return ret;
}
#endif
@@ -705,6 +727,7 @@ static int bmg160_write_event_config(struct iio_dev *indio_dev,
ret = bmg160_setup_any_motion_interrupt(data, state);
if (ret < 0) {
+ bmg160_set_power_state(data, false);
mutex_unlock(&data->mutex);
return ret;
}
@@ -743,7 +766,7 @@ static const struct attribute_group bmg160_attrs_group = {
static const struct iio_event_spec bmg160_event = {
.type = IIO_EV_TYPE_ROC,
- .dir = IIO_EV_DIR_RISING | IIO_EV_DIR_FALLING,
+ .dir = IIO_EV_DIR_EITHER,
.mask_shared_by_type = BIT(IIO_EV_INFO_VALUE) |
BIT(IIO_EV_INFO_ENABLE)
};
@@ -871,6 +894,7 @@ static int bmg160_data_rdy_trigger_set_state(struct iio_trigger *trig,
else
ret = bmg160_setup_new_data_interrupt(data, state);
if (ret < 0) {
+ bmg160_set_power_state(data, false);
mutex_unlock(&data->mutex);
return ret;
}
@@ -908,10 +932,24 @@ static irqreturn_t bmg160_event_handler(int irq, void *private)
else
dir = IIO_EV_DIR_FALLING;
- if (ret & BMG160_ANY_MOTION_MASK)
+ if (ret & BMG160_ANY_MOTION_BIT_X)
iio_push_event(indio_dev, IIO_MOD_EVENT_CODE(IIO_ANGL_VEL,
0,
- IIO_MOD_X_OR_Y_OR_Z,
+ IIO_MOD_X,
+ IIO_EV_TYPE_ROC,
+ dir),
+ data->timestamp);
+ if (ret & BMG160_ANY_MOTION_BIT_Y)
+ iio_push_event(indio_dev, IIO_MOD_EVENT_CODE(IIO_ANGL_VEL,
+ 0,
+ IIO_MOD_Y,
+ IIO_EV_TYPE_ROC,
+ dir),
+ data->timestamp);
+ if (ret & BMG160_ANY_MOTION_BIT_Z)
+ iio_push_event(indio_dev, IIO_MOD_EVENT_CODE(IIO_ANGL_VEL,
+ 0,
+ IIO_MOD_Z,
IIO_EV_TYPE_ROC,
dir),
data->timestamp);
@@ -1169,8 +1207,15 @@ static int bmg160_runtime_suspend(struct device *dev)
{
struct iio_dev *indio_dev = i2c_get_clientdata(to_i2c_client(dev));
struct bmg160_data *data = iio_priv(indio_dev);
+ int ret;
+
+ ret = bmg160_set_mode(data, BMG160_MODE_SUSPEND);
+ if (ret < 0) {
+ dev_err(&data->client->dev, "set mode failed\n");
+ return -EAGAIN;
+ }
- return bmg160_set_mode(data, BMG160_MODE_SUSPEND);
+ return 0;
}
static int bmg160_runtime_resume(struct device *dev)