github-mirror/linux
1
0
Fork 0
mirror of https://github.com/torvalds/linux.git synced 2026-09-24 06:24:02 +02:00
Code Issues Actions Packages Projects Releases Wiki Activity Graph

iio: hid-sensor: als: scale each channel individually

Browse Source 
Some sensors have multiple channels (not just brightness but color ALS
sensors) with different scaling factors.

Signed-off-by: Daniel Schaefer <dhs@frame.work>
Link: https://gitlab.freedesktop.org/hadess/iio-sensor-proxy/-/merge_requests/413
Tested-by: Sven Vainküla <sven@xn--vainkla-r2a.ee> #Asus ProArt PX13 laptop.
Acked-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
Signed-off-by: Jonathan Cameron <jonathan.cameron@oss.qualcomm.com>
This commit is contained in:
Daniel Schaefer 2026-07-23 01:18:58 +08:00 committed by Jonathan Cameron
parent 1135d6875d
commit cad928dad9
1 changed files with 12 additions and 10 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

22
drivers/iio/light/hid-sensor-als.c
View File

@ -33,9 +33,9 @@ struct als_state {
u32 illum[CHANNEL_SCAN_INDEX_MAX];
aligned_s64 timestamp;
} scan;
int scale_pre_decml;
int scale_post_decml;
int scale_precision;
int scale_pre_decml[CHANNEL_SCAN_INDEX_MAX];
int scale_post_decml[CHANNEL_SCAN_INDEX_MAX];
int scale_precision[CHANNEL_SCAN_INDEX_MAX];
int value_offset;
int num_channels;
s64 timestamp;
@ -174,9 +174,11 @@ static int als_read_raw(struct iio_dev *indio_dev,
ret_type = IIO_VAL_INT;
break;
case IIO_CHAN_INFO_SCALE:
*val = als_state->scale_pre_decml;
*val2 = als_state->scale_post_decml;
ret_type = als_state->scale_precision;
if (chan->scan_index >= CHANNEL_SCAN_INDEX_MAX)
return -EINVAL;
*val = als_state->scale_pre_decml[chan->scan_index];
*val2 = als_state->scale_post_decml[chan->scan_index];
ret_type = als_state->scale_precision[chan->scan_index];
break;
case IIO_CHAN_INFO_OFFSET:
*val = als_state->value_offset;
@ -327,6 +329,10 @@ static int als_parse_report(struct platform_device *pdev,
};
++index;
st->scale_precision[i] = hid_sensor_format_scale(usage_id,
&st->als[i], &st->scale_pre_decml[i],
&st->scale_post_decml[i]);
dev_dbg(&pdev->dev, "als %x:%x\n", st->als[i].index,
st->als[i].report_id);
}
@ -336,10 +342,6 @@ static int als_parse_report(struct platform_device *pdev,
if (index)
ret = 0;
st->scale_precision = hid_sensor_format_scale(usage_id,
&st->als[CHANNEL_SCAN_INDEX_INTENSITY],
&st->scale_pre_decml, &st->scale_post_decml);
return ret;
}