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authorGregor Boirie <gregor.boirie@parrot.com>2016-04-20 20:23:45 +0300
committerJonathan Cameron <jic23@kernel.org>2016-04-24 00:16:01 +0300
commiteb3798463f71afc77abd25b2f62708be06f7173b (patch)
treed35a30863782850b30e888b9cbc5822386beee1f /include
parent97eacb9166f4810368e180073dcbceeff0de34df (diff)
downloadlinux-eb3798463f71afc77abd25b2f62708be06f7173b.tar.xz
iio:imu:mpu6050: enhance mounting matrix support
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 <gregor.boirie@parrot.com> Acked-by: Rob Herring <robh@kernel.org> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
Diffstat (limited to 'include')
-rw-r--r--include/linux/platform_data/invensense_mpu6050.h5
1 files changed, 4 insertions, 1 deletions
diff --git a/include/linux/platform_data/invensense_mpu6050.h b/include/linux/platform_data/invensense_mpu6050.h
index ad3aa7b95f35..554b59801aa8 100644
--- a/include/linux/platform_data/invensense_mpu6050.h
+++ b/include/linux/platform_data/invensense_mpu6050.h
@@ -16,13 +16,16 @@
/**
* struct inv_mpu6050_platform_data - Platform data for the mpu driver
- * @orientation: Orientation matrix of the chip
+ * @orientation: Orientation matrix of the chip (deprecated in favor of
+ * mounting matrix retrieved from device-tree)
*
* Contains platform specific information on how to configure the MPU6050 to
* work on this platform. The orientation matricies are 3x3 rotation matricies
* that are applied to the data to rotate from the mounting orientation to the
* platform orientation. The values must be one of 0, 1, or -1 and each row and
* column should have exactly 1 non-zero value.
+ *
+ * Deprecated in favor of mounting matrix retrieved from device-tree.
*/
struct inv_mpu6050_platform_data {
__s8 orientation[9];