diff options
Diffstat (limited to 'drivers/iio/light/ltr501.c')
| -rw-r--r-- | drivers/iio/light/ltr501.c | 42 |
1 files changed, 41 insertions, 1 deletions
diff --git a/drivers/iio/light/ltr501.c b/drivers/iio/light/ltr501.c index b2983b1a9ed1..47d61ec2bb50 100644 --- a/drivers/iio/light/ltr501.c +++ b/drivers/iio/light/ltr501.c @@ -1,6 +1,6 @@ // SPDX-License-Identifier: GPL-2.0-only /* - * ltr501.c - Support for Lite-On LTR501 ambient light and proximity sensor + * Support for Lite-On LTR501 and similar ambient light and proximity sensors. * * Copyright 2014 Peter Meerwald <pmeerw@pmeerw.net> * @@ -98,6 +98,7 @@ enum { ltr501 = 0, ltr559, ltr301, + ltr303, }; struct ltr501_gain { @@ -165,6 +166,7 @@ struct ltr501_data { struct regmap_field *reg_ps_rate; struct regmap_field *reg_als_prst; struct regmap_field *reg_ps_prst; + uint32_t near_level; }; static const struct ltr501_samp_table ltr501_als_samp_table[] = { @@ -524,6 +526,25 @@ static int ltr501_write_intr_prst(struct ltr501_data *data, return -EINVAL; } +static ssize_t ltr501_read_near_level(struct iio_dev *indio_dev, + uintptr_t priv, + const struct iio_chan_spec *chan, + char *buf) +{ + struct ltr501_data *data = iio_priv(indio_dev); + + return sprintf(buf, "%u\n", data->near_level); +} + +static const struct iio_chan_spec_ext_info ltr501_ext_info[] = { + { + .name = "nearlevel", + .shared = IIO_SEPARATE, + .read = ltr501_read_near_level, + }, + { /* sentinel */ } +}; + static const struct iio_event_spec ltr501_als_event_spec[] = { { .type = IIO_EV_TYPE_THRESH, @@ -608,6 +629,7 @@ static const struct iio_chan_spec ltr501_channels[] = { }, .event_spec = ltr501_pxs_event_spec, .num_event_specs = ARRAY_SIZE(ltr501_pxs_event_spec), + .ext_info = ltr501_ext_info, }, IIO_CHAN_SOFT_TIMESTAMP(3), }; @@ -1231,6 +1253,18 @@ static const struct ltr501_chip_info ltr501_chip_info_tbl[] = { .channels = ltr301_channels, .no_channels = ARRAY_SIZE(ltr301_channels), }, + [ltr303] = { + .partid = 0x0A, + .als_gain = ltr559_als_gain_tbl, + .als_gain_tbl_size = ARRAY_SIZE(ltr559_als_gain_tbl), + .als_mode_active = BIT(0), + .als_gain_mask = BIT(2) | BIT(3) | BIT(4), + .als_gain_shift = 2, + .info = <r301_info, + .info_no_irq = <r301_info_no_irq, + .channels = ltr301_channels, + .no_channels = ARRAY_SIZE(ltr301_channels), + }, }; static int ltr501_write_contr(struct ltr501_data *data, u8 als_val, u8 ps_val) @@ -1518,6 +1552,10 @@ static int ltr501_probe(struct i2c_client *client, if ((partid >> 4) != data->chip_info->partid) return -ENODEV; + if (device_property_read_u32(&client->dev, "proximity-near-level", + &data->near_level)) + data->near_level = 0; + indio_dev->info = data->chip_info->info; indio_dev->channels = data->chip_info->channels; indio_dev->num_channels = data->chip_info->no_channels; @@ -1605,6 +1643,7 @@ static const struct i2c_device_id ltr501_id[] = { { "ltr501", ltr501}, { "ltr559", ltr559}, { "ltr301", ltr301}, + { "ltr303", ltr303}, { } }; MODULE_DEVICE_TABLE(i2c, ltr501_id); @@ -1613,6 +1652,7 @@ static const struct of_device_id ltr501_of_match[] = { { .compatible = "liteon,ltr501", }, { .compatible = "liteon,ltr559", }, { .compatible = "liteon,ltr301", }, + { .compatible = "liteon,ltr303", }, {} }; MODULE_DEVICE_TABLE(of, ltr501_of_match); |