On 03/07/15 10:33, Irina Tirdea wrote:
> From: Adriana Reus <adriana.reus@xxxxxxxxx>
>
> 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: Adriana Reus <adriana.reus@xxxxxxxxx>
> Signed-off-by: Irina Tirdea <irina.tirdea@xxxxxxxxx>
Acked-by: Jonathan Cameron <jic23@xxxxxxxxxx>
> ---
> drivers/iio/accel/kxcjk-1013.c | 7 +++++--
> 1 file changed, 5 insertions(+), 2 deletions(-)
>
> diff --git a/drivers/iio/accel/kxcjk-1013.c b/drivers/iio/accel/kxcjk-1013.c
> index 51da369..4960397 100644
> --- a/drivers/iio/accel/kxcjk-1013.c
> +++ b/drivers/iio/accel/kxcjk-1013.c
> @@ -115,6 +115,7 @@ enum kxcjk1013_axis {
> AXIS_X,
> AXIS_Y,
> AXIS_Z,
> + AXIS_MAX,
> };
>
> enum kxcjk1013_mode {
> @@ -947,6 +948,8 @@ static const struct iio_info kxcjk1013_info = {
> .driver_module = THIS_MODULE,
> };
>
> +static const unsigned long kxcjk1013_scan_masks[] = {0x7, 0};
> +
> static irqreturn_t kxcjk1013_trigger_handler(int irq, void *p)
> {
> struct iio_poll_func *pf = p;
> @@ -956,8 +959,7 @@ static irqreturn_t kxcjk1013_trigger_handler(int irq, void *p)
>
> 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 = kxcjk1013_get_acc_reg(data, bit);
> if (ret < 0) {
> mutex_unlock(&data->mutex);
> @@ -1224,6 +1226,7 @@ static int kxcjk1013_probe(struct i2c_client *client,
> indio_dev->dev.parent = &client->dev;
> indio_dev->channels = kxcjk1013_channels;
> indio_dev->num_channels = ARRAY_SIZE(kxcjk1013_channels);
> + indio_dev->available_scan_masks = kxcjk1013_scan_masks;
> indio_dev->name = name;
> indio_dev->modes = INDIO_DIRECT_MODE;
> indio_dev->info = &kxcjk1013_info;
>
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