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iio: sensors-core: st: Support sensors which don't have a Data Ready pin

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Not all ST's sensors support data ready, so let's make the declaration
of one conditional.

Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
This commit is contained in:
Lee Jones 2013-09-16 17:02:00 +01:00 committed by Jonathan Cameron
parent 9d6c39867c
commit 38d1c6a911
2 changed files with 24 additions and 12 deletions
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33
drivers/iio/common/st_sensors/st_sensors_core.c
View File

@ -198,21 +198,17 @@ int st_sensors_set_axis_enable(struct iio_dev *indio_dev, u8 axis_enable)
}
EXPORT_SYMBOL(st_sensors_set_axis_enable);
int st_sensors_init_sensor(struct iio_dev *indio_dev,
struct st_sensors_platform_data *pdata)
static int st_sensors_set_drdy_int_pin(struct iio_dev *indio_dev,
struct st_sensors_platform_data *pdata)
{
int err;
struct st_sensor_data *sdata = iio_priv(indio_dev);
mutex_init(&sdata->tb.buf_lock);
switch (pdata->drdy_int_pin) {
case 1:
if (sdata->sensor->drdy_irq.mask_int1 == 0) {
dev_err(&indio_dev->dev,
"DRDY on INT1 not available.\n");
err = -EINVAL;
goto init_error;
return -EINVAL;
}
sdata->drdy_int_pin = 1;
break;
@ -220,17 +216,29 @@ int st_sensors_init_sensor(struct iio_dev *indio_dev,
if (sdata->sensor->drdy_irq.mask_int2 == 0) {
dev_err(&indio_dev->dev,
"DRDY on INT2 not available.\n");
err = -EINVAL;
goto init_error;
return -EINVAL;
}
sdata->drdy_int_pin = 2;
break;
default:
dev_err(&indio_dev->dev, "DRDY on pdata not valid.\n");
err = -EINVAL;
goto init_error;
return -EINVAL;
}
return 0;
}
int st_sensors_init_sensor(struct iio_dev *indio_dev,
struct st_sensors_platform_data *pdata)
{
struct st_sensor_data *sdata = iio_priv(indio_dev);
int err = 0;
mutex_init(&sdata->tb.buf_lock);
if (pdata)
err = st_sensors_set_drdy_int_pin(indio_dev, pdata);
err = st_sensors_set_enable(indio_dev, false);
if (err < 0)
goto init_error;
@ -266,6 +274,9 @@ int st_sensors_set_dataready_irq(struct iio_dev *indio_dev, bool enable)
u8 drdy_mask;
struct st_sensor_data *sdata = iio_priv(indio_dev);
if (!sdata->sensor->drdy_irq.addr)
return 0;
/* Enable/Disable the interrupt generator 1. */
if (sdata->sensor->drdy_irq.ig1.en_addr > 0) {
err = st_sensors_write_data_with_mask(indio_dev,

3
drivers/iio/pressure/st_pressure_core.c
View File

@ -254,7 +254,8 @@ int st_press_common_probe(struct iio_dev *indio_dev,
pdata->odr = pdata->sensor->odr.odr_avl[0].hz;
if (!plat_data)
/* Some devices don't support a data ready pin. */
if (!plat_data && pdata->sensor->drdy_irq.addr)
plat_data =
(struct st_sensors_platform_data *)&default_press_pdata;