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[PATCH v4 5/8] iio: gyro: bmg160: use available_scan_masks

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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>
Acked-by: Jonathan Cameron <jic23@kernel.org>
Acked-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
---
 drivers/iio/gyro/bmg160.c | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/drivers/iio/gyro/bmg160.c b/drivers/iio/gyro/bmg160.c
index 460bf71..b2a6ccb 100644
--- a/drivers/iio/gyro/bmg160.c
+++ b/drivers/iio/gyro/bmg160.c
@@ -114,6 +114,7 @@ enum bmg160_axis {
 	AXIS_X,
 	AXIS_Y,
 	AXIS_Z,
+	AXIS_MAX,
 };
 
 static const struct {
@@ -801,6 +802,8 @@ static const struct iio_info bmg160_info = {
 	.driver_module		= THIS_MODULE,
 };
 
+static const unsigned long bmg160_scan_masks[] = {0x7, 0};
+
 static irqreturn_t bmg160_trigger_handler(int irq, void *p)
 {
 	struct iio_poll_func *pf = p;
@@ -809,8 +812,7 @@ static irqreturn_t bmg160_trigger_handler(int irq, void *p)
 	int bit, ret, i = 0;
 
 	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 = i2c_smbus_read_word_data(data->client,
 					       BMG160_AXIS_TO_REG(bit));
 		if (ret < 0) {
@@ -1062,6 +1064,7 @@ static int bmg160_probe(struct i2c_client *client,
 	indio_dev->dev.parent = &client->dev;
 	indio_dev->channels = bmg160_channels;
 	indio_dev->num_channels = ARRAY_SIZE(bmg160_channels);
+	indio_dev->available_scan_masks = bmg160_scan_masks;
 	indio_dev->name = name;
 	indio_dev->modes = INDIO_DIRECT_MODE;
 	indio_dev->info = &bmg160_info;
-- 
1.9.1

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Thread

[PATCH v4 0/8] Add support for best effort block read emulation Irina Tirdea <irina.tirdea@intel.com> - 2015-08-04 16:10 +0200
  [PATCH v4 1/8] i2c: core: Add support for best effort block read emulation Irina Tirdea <irina.tirdea@intel.com> - 2015-08-04 16:10 +0200
    Re: [PATCH v4 1/8] i2c: core: Add support for best effort block read  emulation Jonathan Cameron <jic23@kernel.org> - 2015-08-08 17:30 +0200
    Re: [PATCH v4 1/8] i2c: core: Add support for best effort block read  emulation Wolfram Sang <wsa@the-dreams.de> - 2015-08-09 09:40 +0200
      RE: [PATCH v4 1/8] i2c: core: Add support for best effort block  read emulation "Tirdea, Irina" <irina.tirdea@intel.com> - 2015-08-12 16:10 +0200
        Re: [PATCH v4 1/8] i2c: core: Add support for best effort block read  emulation Wolfram Sang <wsa@the-dreams.de> - 2015-08-12 16:50 +0200
  [PATCH v4 8/8] iio: accel: kxcjk-1013: optimize i2c transfers in trigger handler Irina Tirdea <irina.tirdea@intel.com> - 2015-08-04 16:10 +0200
  [PATCH v4 7/8] iio: accel: kxcjk-1013: use available_scan_masks Irina Tirdea <irina.tirdea@intel.com> - 2015-08-04 16:10 +0200
  [PATCH v4 2/8] eeprom: at24: use i2c_smbus_read_i2c_block_data_or_emulated Irina Tirdea <irina.tirdea@intel.com> - 2015-08-04 16:10 +0200
  [PATCH v4 4/8] iio: accel: bmc150: optimize i2c transfers in trigger handler Irina Tirdea <irina.tirdea@intel.com> - 2015-08-04 16:10 +0200
  [PATCH v4 5/8] iio: gyro: bmg160: use available_scan_masks Irina Tirdea <irina.tirdea@intel.com> - 2015-08-04 16:10 +0200
  [PATCH v4 6/8] iio: gyro: bmg160: optimize i2c transfers in trigger handler Irina Tirdea <irina.tirdea@intel.com> - 2015-08-04 16:10 +0200

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