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iio: gyro: bmg160: decouple buffer and triggers

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Make it possible to use buffering with an external trigger, such as one
based on sysfs or hrtimer.

Signed-off-by: Vlad Dogaru <vlad.dogaru@intel.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
This commit is contained in:
Vlad Dogaru 2015-05-13 16:30:09 +03:00 committed by Jonathan Cameron
parent eb2191017e
commit 00e0c8e8e8
1 changed files with 32 additions and 24 deletions
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56
drivers/iio/gyro/bmg160.c
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@ -737,17 +737,6 @@ static int bmg160_write_event_config(struct iio_dev *indio_dev,
return 0;
}
static int bmg160_validate_trigger(struct iio_dev *indio_dev,
struct iio_trigger *trig)
{
struct bmg160_data *data = iio_priv(indio_dev);
if (data->dready_trig != trig && data->motion_trig != trig)
return -EINVAL;
return 0;
}
static IIO_CONST_ATTR_SAMP_FREQ_AVAIL("100 200 400 1000 2000");
static IIO_CONST_ATTR(in_anglvel_scale_available,
@ -809,7 +798,6 @@ static const struct iio_info bmg160_info = {
.write_event_value = bmg160_write_event,
.write_event_config = bmg160_write_event_config,
.read_event_config = bmg160_read_event_config,
.validate_trigger = bmg160_validate_trigger,
.driver_module = THIS_MODULE,
};
@ -984,6 +972,27 @@ static irqreturn_t bmg160_data_rdy_trig_poll(int irq, void *private)
}
static int bmg160_buffer_preenable(struct iio_dev *indio_dev)
{
struct bmg160_data *data = iio_priv(indio_dev);
return bmg160_set_power_state(data, true);
}
static int bmg160_buffer_postdisable(struct iio_dev *indio_dev)
{
struct bmg160_data *data = iio_priv(indio_dev);
return bmg160_set_power_state(data, false);
}
static const struct iio_buffer_setup_ops bmg160_buffer_setup_ops = {
.preenable = bmg160_buffer_preenable,
.postenable = iio_triggered_buffer_postenable,
.predisable = iio_triggered_buffer_predisable,
.postdisable = bmg160_buffer_postdisable,
};
static int bmg160_gpio_probe(struct i2c_client *client,
struct bmg160_data *data)
@ -1100,16 +1109,16 @@ static int bmg160_probe(struct i2c_client *client,
data->motion_trig = NULL;
goto err_trigger_unregister;
}
}
ret = iio_triggered_buffer_setup(indio_dev,
iio_pollfunc_store_time,
bmg160_trigger_handler,
NULL);
if (ret < 0) {
dev_err(&client->dev,
"iio triggered buffer setup failed\n");
goto err_trigger_unregister;
}
ret = iio_triggered_buffer_setup(indio_dev,
iio_pollfunc_store_time,
bmg160_trigger_handler,
&bmg160_buffer_setup_ops);
if (ret < 0) {
dev_err(&client->dev,
"iio triggered buffer setup failed\n");
goto err_trigger_unregister;
}
ret = iio_device_register(indio_dev);
@ -1132,8 +1141,7 @@ static int bmg160_probe(struct i2c_client *client,
err_iio_unregister:
iio_device_unregister(indio_dev);
err_buffer_cleanup:
if (data->dready_trig)
iio_triggered_buffer_cleanup(indio_dev);
iio_triggered_buffer_cleanup(indio_dev);
err_trigger_unregister:
if (data->dready_trig)
iio_trigger_unregister(data->dready_trig);
@ -1153,9 +1161,9 @@ static int bmg160_remove(struct i2c_client *client)
pm_runtime_put_noidle(&client->dev);
iio_device_unregister(indio_dev);
iio_triggered_buffer_cleanup(indio_dev);
if (data->dready_trig) {
iio_triggered_buffer_cleanup(indio_dev);
iio_trigger_unregister(data->dready_trig);
iio_trigger_unregister(data->motion_trig);
}