FAILED: patch "[PATCH] iio: hid-sensor-rotation: Fix quaternion data not correct" failed to apply to 4.19-stable tree
From: <gregkh@linuxfoundation.org>
Date: 2021-05-12 08:53:35
Subsystem:
hid sensor hub drivers, iio subsystem and drivers, the rest · Maintainers:
Jiri Kosina, Jonathan Cameron, Srinivas Pandruvada, Linus Torvalds
The patch below does not apply to the 4.19-stable tree.
If someone wants it applied there, or to any other stable or longterm
tree, then please email the backport, including the original git commit
id to [off-list ref].
thanks,
greg k-h
------------------ original commit in Linus's tree ------------------
From 6c3b615379d7cd90d2f70b3cf9860c5a4910546a Mon Sep 17 00:00:00 2001
From: Ye Xiang <redacted>
Date: Sat, 30 Jan 2021 18:25:46 +0800
Subject: [PATCH] iio: hid-sensor-rotation: Fix quaternion data not correct
Because the data of HID_USAGE_SENSOR_ORIENT_QUATERNION defined by ISH FW
is s16, but quaternion data type is in_rot_quaternion_type(le:s16/32X4>>0),
need to transform data type from s16 to s32
May require manual backporting.
Fixes: fc18dddc0625 ("iio: hid-sensors: Added device rotation support")
Signed-off-by: Ye Xiang <redacted>
Link: https://lore.kernel.org/r/20210130102546.31397-1-xiang.ye@intel.com (local)
Cc: <redacted>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
diff --git a/drivers/iio/orientation/hid-sensor-rotation.c b/drivers/iio/orientation/hid-sensor-rotation.c
index 18e4ef060096..c087d8f72a54 100644
--- a/drivers/iio/orientation/hid-sensor-rotation.c
+++ b/drivers/iio/orientation/hid-sensor-rotation.c@@ -21,7 +21,7 @@ struct dev_rot_state { struct hid_sensor_common common_attributes; struct hid_sensor_hub_attribute_info quaternion; struct { - u32 sampled_vals[4] __aligned(16); + s32 sampled_vals[4] __aligned(16); u64 timestamp __aligned(8); } scan; int scale_pre_decml;
@@ -170,8 +170,15 @@ static int dev_rot_capture_sample(struct hid_sensor_hub_device *hsdev, struct dev_rot_state *rot_state = iio_priv(indio_dev); if (usage_id == HID_USAGE_SENSOR_ORIENT_QUATERNION) { - memcpy(&rot_state->scan.sampled_vals, raw_data, - sizeof(rot_state->scan.sampled_vals)); + if (raw_len / 4 == sizeof(s16)) { + rot_state->scan.sampled_vals[0] = ((s16 *)raw_data)[0]; + rot_state->scan.sampled_vals[1] = ((s16 *)raw_data)[1]; + rot_state->scan.sampled_vals[2] = ((s16 *)raw_data)[2]; + rot_state->scan.sampled_vals[3] = ((s16 *)raw_data)[3]; + } else { + memcpy(&rot_state->scan.sampled_vals, raw_data, + sizeof(rot_state->scan.sampled_vals)); + } dev_dbg(&indio_dev->dev, "Recd Quat len:%zu::%zu\n", raw_len, sizeof(rot_state->scan.sampled_vals));