[PATCH 1/6] iio: accel: bmc150: 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/accel/bmc150-accel-core.c | 9 +++++++--
 1 file changed, 7 insertions(+), 2 deletions(-)

diff --git a/drivers/iio/accel/bmc150-accel-core.c 
b/drivers/iio/accel/bmc150-accel-core.c
index c73331f7..cc52366 100644
--- a/drivers/iio/accel/bmc150-accel-core.c
+++ b/drivers/iio/accel/bmc150-accel-core.c
@@ -138,6 +138,7 @@ enum bmc150_accel_axis {
        AXIS_X,
        AXIS_Y,
        AXIS_Z,
+       AXIS_MAX,
 };
 
 enum bmc150_power_modes {
@@ -1104,6 +1105,10 @@ static const struct iio_info bmc150_accel_info_fifo = {
        .driver_module          = THIS_MODULE,
 };
 
+static const unsigned long bmc150_accel_scan_masks[] = {
+                                       BIT(AXIS_X) | BIT(AXIS_Y) | BIT(AXIS_Z),
+                                       0};
+
 static irqreturn_t bmc150_accel_trigger_handler(int irq, void *p)
 {
        struct iio_poll_func *pf = p;
@@ -1113,8 +1118,7 @@ static irqreturn_t bmc150_accel_trigger_handler(int irq, 
void *p)
        unsigned int raw_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,
                                       BMC150_ACCEL_AXIS_TO_REG(bit), &raw_val,
                                       2);
@@ -1574,6 +1578,7 @@ int bmc150_accel_core_probe(struct device *dev, struct 
regmap *regmap, int irq,
        indio_dev->channels = data->chip_info->channels;
        indio_dev->num_channels = data->chip_info->num_channels;
        indio_dev->name = name ? name : data->chip_info->name;
+       indio_dev->available_scan_masks = bmc150_accel_scan_masks;
        indio_dev->modes = INDIO_DIRECT_MODE;
        indio_dev->info = &bmc150_accel_info;
 
-- 
1.9.1