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SubjectRe: [PATCH 11/20] iio: sensors-core: st: Support sensors which don't have a Data Ready pin
On 09/16/13 17:02, Lee Jones wrote:
> 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>
Applied to the togreg branch of iio.git

Thanks Lee
> ---
> drivers/iio/common/st_sensors/st_sensors_core.c | 33 ++++++++++++++++---------
> drivers/iio/pressure/st_pressure_core.c | 3 ++-
> 2 files changed, 24 insertions(+), 12 deletions(-)
>
> diff --git a/drivers/iio/common/st_sensors/st_sensors_core.c b/drivers/iio/common/st_sensors/st_sensors_core.c
> index 793136a..2672630 100644
> --- a/drivers/iio/common/st_sensors/st_sensors_core.c
> +++ b/drivers/iio/common/st_sensors/st_sensors_core.c
> @@ -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)
> +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,
> diff --git a/drivers/iio/pressure/st_pressure_core.c b/drivers/iio/pressure/st_pressure_core.c
> index 93bff9b..3abada2 100644
> --- a/drivers/iio/pressure/st_pressure_core.c
> +++ b/drivers/iio/pressure/st_pressure_core.c
> @@ -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;
>
>


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