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* [PATCH v2] iio: hid-sensor-prox: Fix scale not correct issue
@ 2021-01-30 10:25 Ye Xiang
  2021-01-30 19:14 ` Jonathan Cameron
  0 siblings, 1 reply; 4+ messages in thread
From: Ye Xiang @ 2021-01-30 10:25 UTC (permalink / raw)
  To: jikos, jic23, srinivas.pandruvada
  Cc: linux-input, linux-iio, linux-kernel, Ye Xiang

Currently, the proxy sensor scale is zero because it just return the
exponent directly. To fix this issue, this patch use
hid_sensor_format_scale to process the scale first then return the
output.

Fixes: 39a3a0138f61 ("iio: hid-sensors: Added Proximity Sensor Driver")
Signed-off-by: Ye Xiang <xiang.ye@intel.com>
---
v2:
  - Add Fixes tag

---
 drivers/iio/light/hid-sensor-prox.c | 13 +++++++++++--
 1 file changed, 11 insertions(+), 2 deletions(-)

diff --git a/drivers/iio/light/hid-sensor-prox.c b/drivers/iio/light/hid-sensor-prox.c
index 4ab285a418d5..4abcfe48f1d4 100644
--- a/drivers/iio/light/hid-sensor-prox.c
+++ b/drivers/iio/light/hid-sensor-prox.c
@@ -23,6 +23,9 @@ struct prox_state {
 	struct hid_sensor_common common_attributes;
 	struct hid_sensor_hub_attribute_info prox_attr;
 	u32 human_presence;
+	int scale_pre_decml;
+	int scale_post_decml;
+	int scale_precision;
 };
 
 static const u32 prox_sensitivity_addresses[] = {
@@ -98,8 +101,9 @@ static int prox_read_raw(struct iio_dev *indio_dev,
 		ret_type = IIO_VAL_INT;
 		break;
 	case IIO_CHAN_INFO_SCALE:
-		*val = prox_state->prox_attr.units;
-		ret_type = IIO_VAL_INT;
+		*val = prox_state->scale_pre_decml;
+		*val2 = prox_state->scale_post_decml;
+		ret_type = prox_state->scale_precision;
 		break;
 	case IIO_CHAN_INFO_OFFSET:
 		*val = hid_sensor_convert_exponent(
@@ -221,6 +225,11 @@ static int prox_parse_report(struct platform_device *pdev,
 	dev_dbg(&pdev->dev, "prox %x:%x\n", st->prox_attr.index,
 			st->prox_attr.report_id);
 
+	st->scale_precision = hid_sensor_format_scale(
+				hsdev->usage,
+				&st->prox_attr,
+				&st->scale_pre_decml, &st->scale_post_decml);
+
 	return ret;
 }
 
-- 
2.17.1


^ permalink raw reply related	[flat|nested] 4+ messages in thread

end of thread, other threads:[~2021-01-31  7:37 UTC | newest]

Thread overview: 4+ messages (download: mbox.gz follow: Atom feed
-- links below jump to the message on this page --
2021-01-30 10:25 [PATCH v2] iio: hid-sensor-prox: Fix scale not correct issue Ye Xiang
2021-01-30 19:14 ` Jonathan Cameron
2021-01-31  7:16   ` Ye, Xiang
2021-01-31  7:35   ` Ye, Xiang

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