[PATCH] drivers: iio: Add more data field for iio driver hysteresis parsing

[hongyan.song@xxxxxxxxx]

From: Song Hongyan <hongyan.song@xxxxxxxxx>

Add more data field support for als, incli_3d, rotation, press
hysteresis parsing. In some implementation may uses them as sensitivity
modifier, without this change hysteresis may not be able to read and
write.

Signed-off-by: Song Hongyan <hongyan.song@xxxxxxxxx>
---
 drivers/iio/light/hid-sensor-als.c            | 8 ++++++++
 drivers/iio/orientation/hid-sensor-incl-3d.c  | 8 ++++++++
 drivers/iio/orientation/hid-sensor-rotation.c | 7 +++++++
 drivers/iio/pressure/hid-sensor-press.c       | 8 ++++++++
 include/linux/hid-sensor-ids.h                | 1 +
 5 files changed, 32 insertions(+)

diff --git a/drivers/iio/light/hid-sensor-als.c b/drivers/iio/light/hid-sensor-als.c
index 94f3325..bb19178 100644
--- a/drivers/iio/light/hid-sensor-als.c
+++ b/drivers/iio/light/hid-sensor-als.c
@@ -271,6 +271,14 @@ static int als_parse_report(struct platform_device *pdev,
 			st->common_attributes.sensitivity.index,
 			st->common_attributes.sensitivity.report_id);
 	}
+	if (st->common_attributes.sensitivity.index < 0) {
+		sensor_hub_input_get_attribute_info(hsdev,
+			HID_FEATURE_REPORT, usage_id,
+			HID_USAGE_SENSOR_DATA_MOD_CHANGE_SENSITIVITY_REL_PCT |
+			HID_USAGE_SENSOR_LIGHT_ILLUM,
+			&st->common_attributes.sensitivity);
+	}
+
 	return ret;
 }
 
diff --git a/drivers/iio/orientation/hid-sensor-incl-3d.c b/drivers/iio/orientation/hid-sensor-incl-3d.c
index bdc5e45..7da1e3f 100644
--- a/drivers/iio/orientation/hid-sensor-incl-3d.c
+++ b/drivers/iio/orientation/hid-sensor-incl-3d.c
@@ -305,6 +305,14 @@ static int incl_3d_parse_report(struct platform_device *pdev,
 			st->common_attributes.sensitivity.index,
 			st->common_attributes.sensitivity.report_id);
 	}
+	if (st->common_attributes.sensitivity.index < 0) {
+		sensor_hub_input_get_attribute_info(hsdev,
+			HID_FEATURE_REPORT, usage_id,
+			HID_USAGE_SENSOR_DATA_MOD_CHANGE_SENSITIVITY_ABS |
+			HID_USAGE_SENSOR_ORIENT_TILT,
+			&st->common_attributes.sensitivity);
+	}
+
 	return ret;
 }
 
diff --git a/drivers/iio/orientation/hid-sensor-rotation.c b/drivers/iio/orientation/hid-sensor-rotation.c
index a69db20..201e320 100644
--- a/drivers/iio/orientation/hid-sensor-rotation.c
+++ b/drivers/iio/orientation/hid-sensor-rotation.c
@@ -229,6 +229,13 @@ static int dev_rot_parse_report(struct platform_device *pdev,
 			st->common_attributes.sensitivity.index,
 			st->common_attributes.sensitivity.report_id);
 	}
+	if (st->common_attributes.sensitivity.index < 0) {
+		sensor_hub_input_get_attribute_info(hsdev,
+			HID_FEATURE_REPORT, usage_id,
+			HID_USAGE_SENSOR_DATA_MOD_CHANGE_SENSITIVITY_ABS |
+			HID_USAGE_SENSOR_ORIENT_QUATERNION,
+			&st->common_attributes.sensitivity);
+	}
 
 	return 0;
 }
diff --git a/drivers/iio/pressure/hid-sensor-press.c b/drivers/iio/pressure/hid-sensor-press.c
index d7b1c00..bf5d2ac 100644
--- a/drivers/iio/pressure/hid-sensor-press.c
+++ b/drivers/iio/pressure/hid-sensor-press.c
@@ -250,6 +250,14 @@ static int press_parse_report(struct platform_device *pdev,
 			st->common_attributes.sensitivity.index,
 			st->common_attributes.sensitivity.report_id);
 	}
+	if (st->common_attributes.sensitivity.index < 0) {
+		sensor_hub_input_get_attribute_info(hsdev,
+			HID_FEATURE_REPORT, usage_id,
+			HID_USAGE_SENSOR_DATA_MOD_CHANGE_SENSITIVITY_ABS |
+			HID_USAGE_SENSOR_ATMOSPHERIC_PRESSURE,
+			&st->common_attributes.sensitivity);
+	}
+
 	return ret;
 }
 
diff --git a/include/linux/hid-sensor-ids.h b/include/linux/hid-sensor-ids.h
index 76033e0..a875b9be 100644
--- a/include/linux/hid-sensor-ids.h
+++ b/include/linux/hid-sensor-ids.h
@@ -158,6 +158,7 @@
 /* Per data field properties */
 #define HID_USAGE_SENSOR_DATA_MOD_NONE					0x00
 #define HID_USAGE_SENSOR_DATA_MOD_CHANGE_SENSITIVITY_ABS		0x1000
+#define HID_USAGE_SENSOR_DATA_MOD_CHANGE_SENSITIVITY_REL_PCT            0xE000
 
 /* Power state enumerations */
 #define HID_USAGE_SENSOR_PROP_POWER_STATE_UNDEFINED_ENUM	0x200850
-- 
2.7.4