Mailing List Archive

Add ps_it attributes for vcnl4200 (similar to vcnl4040).
Add read/write attribute for proximity integration time.
Read attribute for available proximity integration times.
Change sampling rate depending on integration time.

Signed-off-by: Astrid Rost <astrid.rost@axis.com>
---
drivers/iio/light/vcnl4000.c | 33 ++++++++++++++++++++++++++-------
1 file changed, 26 insertions(+), 7 deletions(-)

diff --git a/drivers/iio/light/vcnl4000.c b/drivers/iio/light/vcnl4000.c
index 565b9c9ea470..090e20229855 100644
--- a/drivers/iio/light/vcnl4000.c
+++ b/drivers/iio/light/vcnl4000.c
@@ -124,6 +124,15 @@ static const int vcnl4040_ps_it_times[][2] = {
{0, 800},
};

+static const int vcnl4200_ps_it_times[][2] = {
+ {0, 96},
+ {0, 144},
+ {0, 192},
+ {0, 384},
+ {0, 768},
+ {0, 864},
+};
+
#define VCNL4000_SLEEP_DELAY_MS 2000 /* before we enter pm_runtime_suspend */

enum vcnl4000_device_ids {
@@ -166,6 +175,8 @@ struct vcnl4000_chip_spec {
irqreturn_t (*irq_thread)(int irq, void *priv);
irqreturn_t (*trig_buffer_func)(int irq, void *priv);
u8 int_reg;
+ const int(*ps_it_times)[][2];
+ const int num_ps_it_times;
};

static const struct i2c_device_id vcnl4000_id[] = {
@@ -508,11 +519,11 @@ static int vcnl4040_read_ps_it(struct vcnl4000_data *data, int *val, int *val2)

ret = FIELD_GET(VCNL4040_PS_CONF2_PS_IT, ret);

- if (ret >= ARRAY_SIZE(vcnl4040_ps_it_times))
+ if (ret >= data->chip_spec->num_ps_it_times)
return -EINVAL;

- *val = vcnl4040_ps_it_times[ret][0];
- *val2 = vcnl4040_ps_it_times[ret][1];
+ *val = (*data->chip_spec->ps_it_times)[ret][0];
+ *val2 = (*data->chip_spec->ps_it_times)[ret][1];

return 0;
}
@@ -523,8 +534,8 @@ static ssize_t vcnl4040_write_ps_it(struct vcnl4000_data *data, int val)
int ret, index = -1;
u16 regval;

- for (i = 0; i < ARRAY_SIZE(vcnl4040_ps_it_times); i++) {
- if (val == vcnl4040_ps_it_times[i][1]) {
+ for (i = 0; i < data->chip_spec->num_ps_it_times; i++) {
+ if (val == (*data->chip_spec->ps_it_times)[i][1]) {
index = i;
break;
}
@@ -533,6 +544,8 @@ static ssize_t vcnl4040_write_ps_it(struct vcnl4000_data *data, int val)
if (index < 0)
return -EINVAL;

+ data->vcnl4200_ps.sampling_rate = ktime_set(0, val * 60 * NSEC_PER_USEC);
+
mutex_lock(&data->vcnl4000_lock);

ret = i2c_smbus_read_word_data(data->client, VCNL4200_PS_CONF1);
@@ -620,11 +633,13 @@ static int vcnl4040_read_avail(struct iio_dev *indio_dev,
const int **vals, int *type, int *length,
long mask)
{
+ struct vcnl4000_data *data = iio_priv(indio_dev);
+
switch (mask) {
case IIO_CHAN_INFO_INT_TIME:
- *vals = (int *)vcnl4040_ps_it_times;
+ *vals = (int *)(*data->chip_spec->ps_it_times);
*type = IIO_VAL_INT_PLUS_MICRO;
- *length = 2 * ARRAY_SIZE(vcnl4040_ps_it_times);
+ *length = 2 * data->chip_spec->num_ps_it_times;
return IIO_AVAIL_LIST;
default:
return -EINVAL;
@@ -1317,6 +1332,8 @@ static const struct vcnl4000_chip_spec vcnl4000_chip_spec_cfg[] = {
.info = &vcnl4040_info,
.irq_thread = vcnl4040_irq_thread,
.int_reg = VCNL4040_INT_FLAGS,
+ .ps_it_times = &vcnl4040_ps_it_times,
+ .num_ps_it_times = ARRAY_SIZE(vcnl4040_ps_it_times),
},
[VCNL4200] = {
.prod = "VCNL4200",
@@ -1329,6 +1346,8 @@ static const struct vcnl4000_chip_spec vcnl4000_chip_spec_cfg[] = {
.info = &vcnl4040_info,
.irq_thread = vcnl4040_irq_thread,
.int_reg = VCNL4200_INT_FLAGS,
+ .ps_it_times = &vcnl4200_ps_it_times,
+ .num_ps_it_times = ARRAY_SIZE(vcnl4200_ps_it_times),
},
};

--
2.30.2