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path: root/drivers/iio/light/vcnl4000.c
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Diffstat (limited to 'drivers/iio/light/vcnl4000.c')
-rw-r--r--drivers/iio/light/vcnl4000.c25
1 files changed, 25 insertions, 0 deletions
diff --git a/drivers/iio/light/vcnl4000.c b/drivers/iio/light/vcnl4000.c
index 38fcd9a26046..58e97462e803 100644
--- a/drivers/iio/light/vcnl4000.c
+++ b/drivers/iio/light/vcnl4000.c
@@ -83,6 +83,7 @@ struct vcnl4000_data {
struct mutex vcnl4000_lock;
struct vcnl4200_channel vcnl4200_al;
struct vcnl4200_channel vcnl4200_ps;
+ uint32_t near_level;
};
struct vcnl4000_chip_spec {
@@ -342,6 +343,25 @@ static const struct vcnl4000_chip_spec vcnl4000_chip_spec_cfg[] = {
},
};
+static ssize_t vcnl4000_read_near_level(struct iio_dev *indio_dev,
+ uintptr_t priv,
+ const struct iio_chan_spec *chan,
+ char *buf)
+{
+ struct vcnl4000_data *data = iio_priv(indio_dev);
+
+ return sprintf(buf, "%u\n", data->near_level);
+}
+
+static const struct iio_chan_spec_ext_info vcnl4000_ext_info[] = {
+ {
+ .name = "nearlevel",
+ .shared = IIO_SEPARATE,
+ .read = vcnl4000_read_near_level,
+ },
+ { /* sentinel */ }
+};
+
static const struct iio_chan_spec vcnl4000_channels[] = {
{
.type = IIO_LIGHT,
@@ -350,6 +370,7 @@ static const struct iio_chan_spec vcnl4000_channels[] = {
}, {
.type = IIO_PROXIMITY,
.info_mask_separate = BIT(IIO_CHAN_INFO_RAW),
+ .ext_info = vcnl4000_ext_info,
}
};
@@ -439,6 +460,10 @@ static int vcnl4000_probe(struct i2c_client *client,
dev_dbg(&client->dev, "%s Ambient light/proximity sensor, Rev: %02x\n",
data->chip_spec->prod, data->rev);
+ if (device_property_read_u32(&client->dev, "proximity-near-level",
+ &data->near_level))
+ data->near_level = 0;
+
indio_dev->dev.parent = &client->dev;
indio_dev->info = &vcnl4000_info;
indio_dev->channels = vcnl4000_channels;