iio: accel: bmc150: use available_scan_masks

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.tirdea@intel.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>

diff --git a/drivers/iio/accel/bmc150-accel-core.c b/drivers/iio/accel/bmc150-accel-core.c
index c73331f7782b8af4b91c94c26dd29195ddc45d9a..cc52366ad4ad5d858d1ac869d5f8712552153ce6 100644 (file)
--- 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;