patch "iio: hid-sensor-prox: Fix scale not correct issue" added to staging-linus

This is a note to let you know that I've just added the patch titled

iio: hid-sensor-prox: Fix scale not correct issue

to my staging git tree which can be found at
git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging.git
in the staging-linus branch.

The patch will show up in the next release of the linux-next tree (usually sometime within the next 24 hours during the week.)

The patch will hopefully also be merged in Linus's tree for the next -rc kernel release.

If you have any questions about this process, please let me know.

From d68c592e02f6f49a88e705f13dfc1883432cf300 Mon Sep 17 00:00:00 2001
From: Ye Xiang <[email protected]>
Date: Sat, 30 Jan 2021 18:25:30 +0800
Subject: iio: hid-sensor-prox: Fix scale not correct issue

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.

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

index 330cf359e0b8..e9e00ce0c6d4 100644
@@ -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;
 };
 
 /* Channel definitions */

@@ -93,8 +96,9 @@ 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(

@@ -234,6 +238,11 @@ static int prox_parse_report(struct platform_device *pdev,
 			HID_USAGE_SENSOR_HUMAN_PRESENCE,
 			&st->common_attributes.sensitivity);
 
+	st->scale_precision = hid_sensor_format_scale(
+				hsdev->usage,
+				&st->prox_attr,
+				&st->scale_pre_decml, &st->scale_post_decml);
+
 	return ret;
 }
 

2.30.2