From ea01f2c18a22a2a8385909d64662afc92da6b13f Mon Sep 17 00:00:00 2001 From: Lee Jones Date: Tue, 10 Sep 2013 13:49:00 +0100 Subject: [PATCH] iio: pressure-core: st: Allow for number of channels to vary At the moment the number of channels specified is dictated by the first sensor supported by the driver. As we add support for more sensors this is likely to vary. Instead of using the ARRAY_SIZE() of the LPS331AP's channel specifier we'll use a new adaptable 'struct st_sensors' element instead. Signed-off-by: Lee Jones Acked-by: Denis Ciocca Signed-off-by: Jonathan Cameron --- drivers/iio/pressure/st_pressure_core.c | 3 ++- include/linux/iio/common/st_sensors.h | 1 + 2 files changed, 3 insertions(+), 1 deletion(-) diff --git a/drivers/iio/pressure/st_pressure_core.c b/drivers/iio/pressure/st_pressure_core.c index 506b02d27b0a..93bff9ba05d6 100644 --- a/drivers/iio/pressure/st_pressure_core.c +++ b/drivers/iio/pressure/st_pressure_core.c @@ -107,6 +107,7 @@ static const struct st_sensors st_press_sensors[] = { [0] = LPS331AP_PRESS_DEV_NAME, }, .ch = (struct iio_chan_spec *)st_press_lps331ap_channels, + .num_ch = ARRAY_SIZE(st_press_lps331ap_channels), .odr = { .addr = ST_PRESS_LPS331AP_ODR_ADDR, .mask = ST_PRESS_LPS331AP_ODR_MASK, @@ -245,7 +246,7 @@ int st_press_common_probe(struct iio_dev *indio_dev, pdata->num_data_channels = ST_PRESS_NUMBER_DATA_CHANNELS; pdata->multiread_bit = pdata->sensor->multi_read_bit; indio_dev->channels = pdata->sensor->ch; - indio_dev->num_channels = ARRAY_SIZE(st_press_lps331ap_channels); + indio_dev->num_channels = pdata->sensor->num_ch; if (pdata->sensor->fs.addr != 0) pdata->current_fullscale = (struct st_sensor_fullscale_avl *) diff --git a/include/linux/iio/common/st_sensors.h b/include/linux/iio/common/st_sensors.h index e51f65480ea5..e732fda6c8e6 100644 --- a/include/linux/iio/common/st_sensors.h +++ b/include/linux/iio/common/st_sensors.h @@ -184,6 +184,7 @@ struct st_sensors { u8 wai; char sensors_supported[ST_SENSORS_MAX_4WAI][ST_SENSORS_MAX_NAME]; struct iio_chan_spec *ch; + int num_ch; struct st_sensor_odr odr; struct st_sensor_power pw; struct st_sensor_axis enable_axis; -- 2.34.1