[PATCH 3/6] iio: gyro: bmg160: use available_scan_masks

[Irina Tirdea]

Use available_scan_masks to allow the iio core to select
the data to send to userspace depending on which axes are
enabled, instead of doing this in the driver's interrupt
handler.

Signed-off-by: Irina Tirdea <irina.tir...@intel.com>
---
 drivers/iio/gyro/bmg160_core.c | 9 +++++++--
 1 file changed, 7 insertions(+), 2 deletions(-)

diff --git a/drivers/iio/gyro/bmg160_core.c b/drivers/iio/gyro/bmg160_core.c
index bbce3b0..8d6e5b1 100644
--- a/drivers/iio/gyro/bmg160_core.c
+++ b/drivers/iio/gyro/bmg160_core.c
@@ -116,6 +116,7 @@ enum bmg160_axis {
        AXIS_X,
        AXIS_Y,
        AXIS_Z,
+       AXIS_MAX,
 };
 
 static const struct {
@@ -763,6 +764,10 @@ static const struct iio_info bmg160_info = {
        .driver_module          = THIS_MODULE,
 };
 
+static const unsigned long bmg160_accel_scan_masks[] = {
+                                       BIT(AXIS_X) | BIT(AXIS_Y) | BIT(AXIS_Z),
+                                       0};
+
 static irqreturn_t bmg160_trigger_handler(int irq, void *p)
 {
        struct iio_poll_func *pf = p;
@@ -772,8 +777,7 @@ static irqreturn_t bmg160_trigger_handler(int irq, void *p)
        unsigned int val;
 
        mutex_lock(&data->mutex);
-       for_each_set_bit(bit, indio_dev->active_scan_mask,
-                        indio_dev->masklength) {
+       for (bit = 0; bit < AXIS_MAX; bit++) {
                ret = regmap_bulk_read(data->regmap, BMG160_AXIS_TO_REG(bit),
                                       &val, 2);
                if (ret < 0) {
@@ -1019,6 +1023,7 @@ int bmg160_core_probe(struct device *dev, struct regmap 
*regmap, int irq,
        indio_dev->channels = bmg160_channels;
        indio_dev->num_channels = ARRAY_SIZE(bmg160_channels);
        indio_dev->name = name;
+       indio_dev->available_scan_masks = bmg160_accel_scan_masks;
        indio_dev->modes = INDIO_DIRECT_MODE;
        indio_dev->info = &bmg160_info;
 
-- 
1.9.1