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iio:imu:mpu6050: enhance mounting matrix support

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Add a new rotation matrix sysfs attribute compliant with IIO core
mounting matrix API.
Matrix is retrieved from "in_anglvel_mount_matrix" and
"in_accel_mount_matrix" sysfs attributes. It is declared into mpu6050 DTS
entry as a "mount-matrix" property.

Old interface is kept for backward userspace compatibility and may be
retrieved from legacy platform_data mechanism only.

Signed-off-by: Gregor Boirie <[email protected]>
Acked-by: Rob Herring <[email protected]>
Signed-off-by: Jonathan Cameron <[email protected]>
This commit is contained in:
Gregor Boirie 2016-04-20 19:23:45 +02:00 • committed by Jonathan Cameron
commit eb3798463f
5 changed files with 55 additions and 5 deletions
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Documentation/ABI/testing/sysfs-bus-iio
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@ -1516,6 +1516,8 @@ Description:
What: /sys/bus/iio/devices/iio:deviceX/mount_matrix
What: /sys/bus/iio/devices/iio:deviceX/in_mount_matrix
What: /sys/bus/iio/devices/iio:deviceX/out_mount_matrix
What: /sys/bus/iio/devices/iio:deviceX/in_anglvel_mount_matrix
What: /sys/bus/iio/devices/iio:deviceX/in_accel_mount_matrix
KernelVersion: 4.6
Contact: [email protected]
Description: