iio: add support for Bosch BMX055 IMU

The BMX055[1] is a Bosch 9-axis IMU integrating a 3-axis accelerometer, gyroscope and geomagnetic sensor.

It supports SPI/I²C interfaces, and existing compatible drivers can be reused by simply adding the corresponding dt-bindings for fallback coompatibles as follows:

- accelerometer: bmc150_accel
- gyroscope: bmg160
- magnetometer: bmc150_magn

Changes in v4:
- Please replace underscores with hyphens in the compatibles.
- Link to v3: https://lore.kernel.org/all/[email protected]/

Changes in v3:
- Drop the Linux-related comments in the bosch,bma25 dt-bindings.
- Link to v2: https://lore.kernel.org/all/[email protected]/

Changes in v2:
- Use fallback compatibles instead of introducing a new device ID in the driver.
- Link to v1: https://lore.kernel.org/all/[email protected]/

[1] https://cdn.sparkfun.com/assets/b/9/1/f/4/bst-bmx055-ds000_datasheet.pdf

Jun Yan (3):
dt-bindings: iio: accel: bosch,bma255: add bmx055 accel binding
dt-bindings: iio: magnetometer: bosch,bmc150_magn: add bmx055
magnetometer binding
dt-bindings: iio: gyroscope: bosch,bmg160: add bmx055 gyroscope
binding

 .../bindings/iio/accel/bosch,bma255.yaml      | 40 ++++++++++---------
 .../bindings/iio/gyroscope/bosch,bmg160.yaml  | 12 ++++--
 .../iio/magnetometer/bosch,bmc150_magn.yaml   | 14 ++++---
 3 files changed, 38 insertions(+), 28 deletions(-)

2.52.0

Add the device-tree binding for the Bosch BMX055 IMU (accelerometer part), which is compatible with bmc150_accel.

Datasheet: https://cdn.sparkfun.com/assets/b/9/1/f/4/bst-bmx055-ds000_datasheet.pdf

---
 .../bindings/iio/accel/bosch,bma255.yaml      | 40 ++++++++++---------
 1 file changed, 21 insertions(+), 19 deletions(-)

index c1387e02eb82..7f9c5eec35dd 100644
@@ -16,25 +16,27 @@ description:
 
 properties:
   compatible:
-    enum:
-      # bmc150-accel driver in Linux
-      - bosch,bma222
-      - bosch,bma222e
-      - bosch,bma250e
-      - bosch,bma253
-      - bosch,bma254
-      - bosch,bma255
-      - bosch,bma280
-      - bosch,bmc150_accel
-      - bosch,bmc156_accel
-      - bosch,bmi055_accel
-
-      # bma180 driver in Linux
-      - bosch,bma023
-      - bosch,bma150
-      - bosch,bma180
-      - bosch,bma250
-      - bosch,smb380
+    oneOf:
+      - enum:
+          - bosch,bma222
+          - bosch,bma222e
+          - bosch,bma250e
+          - bosch,bma253
+          - bosch,bma254
+          - bosch,bma255
+          - bosch,bma280
+          - bosch,bmc150_accel
+          - bosch,bmc156_accel
+          - bosch,bmi055_accel
+
+          - bosch,bma023
+          - bosch,bma150
+          - bosch,bma180
+          - bosch,bma250
+          - bosch,smb380
+      - items:
+          - const: bosch,bmx055-accel
+          - const: bosch,bmc150_accel
 
   reg:
     maxItems: 1

2.52.0

Add the device-tree binding for the bosch BMX055 IMU (magnetometer part), which is compatible with bmc150_magn.

Datasheet: https://cdn.sparkfun.com/assets/b/9/1/f/4/bst-bmx055-ds000_datasheet.pdf

---
 .../iio/magnetometer/bosch,bmc150_magn.yaml        | 14 +++++++++-----
 1 file changed, 9 insertions(+), 5 deletions(-)

index a3838ab0c524..c1a6892b0194 100644
@@ -21,11 +21,15 @@ properties:
     description:
       Note the bmm150_magn is a deprecated compatible as this part contains only
       a magnetometer.
-    enum:
-      - bosch,bmc150_magn
-      - bosch,bmc156_magn
-      - bosch,bmm150
-      - bosch,bmm150_magn
+    oneOf:
+      - enum:
+          - bosch,bmc150_magn
+          - bosch,bmc156_magn
+          - bosch,bmm150
+          - bosch,bmm150_magn
+      - items:
+          - const: bosch,bmx055-magn
+          - const: bosch,bmc150_magn
 
   reg:
     maxItems: 1

2.52.0

Add the device-tree binding for the bosch BMX055 IMU (gyroscope part), which is compatible with bmg160.

Datasheet: https://cdn.sparkfun.com/assets/b/9/1/f/4/bst-bmx055-ds000_datasheet.pdf

---
 .../bindings/iio/gyroscope/bosch,bmg160.yaml         | 12 ++++++++----
 1 file changed, 8 insertions(+), 4 deletions(-)

index 3c6fe74af0b8..fcbd4b430e48 100644
@@ -11,10 +11,14 @@ maintainers:
 
 properties:
   compatible:
-    enum:
-      - bosch,bmg160
-      - bosch,bmi055_gyro
-      - bosch,bmi088_gyro
+    oneOf:
+      - enum:
+          - bosch,bmg160
+          - bosch,bmi055_gyro
+          - bosch,bmi088_gyro
+      - items:
+          - const: bosch,bmx055-gyro
+          - const: bosch,bmg160
 
   reg:
     maxItems: 1

2.52.0

pw-bot: not-applicable

Applied to the testing branch of iio.git

Thanks,

Jonathan

This patch series commit was not found in the testing branch.

could it have been missed?

Best regards,

Jun Yan

Good catch. I clearly messed something up here :(

Applied and pushed out now.

Jonathan