On 06.11.2016 13:41, Jonathan Cameron wrote:
On 03/11/16 11:25, Marcin Niestroj wrote:
This adds documentation for Bosch BMI160 Inertial Measurement Unit
device-tree bindings.
Signed-off-by: Marcin Niestroj <m.niestroj@xxxxxxxxxxxxxxxx>
Unless I missed it in the previous patch we should also have of tables
added to the i2c and spi files (which is why the various tests haven't
been screaming at me that this device doesn't have documented bindings).
Ok, I will add them.
Otherwise, the use of interrupt names to indicate which pin on the chip
is a little unusual (if you cribbed this from somewhere I've forgotten
about then do say so!), so will want a devicetree bindings maintainer
input on this.
I have used interrupt names similar as in other driver. Please see [1]
for it's DT documentation and [2] for implementation.
[1] Documentation/devicetree/bindings/iio/accel/mma8452.txt
[2] drivers/iio/accel/mma8452.c
Thanks,
Jonathan
---
.../devicetree/bindings/iio/imu/bmi160.txt | 34 ++++++++++++++++++++++
1 file changed, 34 insertions(+)
create mode 100644 Documentation/devicetree/bindings/iio/imu/bmi160.txt
diff --git a/Documentation/devicetree/bindings/iio/imu/bmi160.txt b/Documentation/devicetree/bindings/iio/imu/bmi160.txt
new file mode 100644
index 0000000..b02ef3e
--- /dev/null
+++ b/Documentation/devicetree/bindings/iio/imu/bmi160.txt
@@ -0,0 +1,34 @@
+Bosch BMI160 - Inertial Measurement Unit with Accelerometer, Gyroscope
+and externally connectable Magnetometer
+
+https://www.bosch-sensortec.com/bst/products/all_products/bmi160
+
+Required properties:
+ - compatible : should be "bosch,bmi160"
+ - reg : the I2C address or SPI chip select number of the sensor
+ - spi-max-frequency : set maximum clock frequency (only for SPI)
+
+Optional properties:
+ - interrupt-parent : should be the phandle of the interrupt controller
+ - interrupts : interrupt mapping for GPIO IRQ, must be IRQ_TYPE_LEVEL_LOW
+ - interrupt-names : set to "INT2" if using INT2 pin
+
+Examples:
+
+bmi160@68 {
+ compatible = "bosch,bmi160";
+ reg = <0x68>;
+
+ interrupt-parent = <&gpio4>;
+ interrupts = <12 IRQ_TYPE_LEVEL_LOW>;
+};
+
+bmi160@0 {
+ compatible = "bosch,bmi160";
+ reg = <0>;
+ spi-max-frequency = <10000000>;
+
+ interrupt-parent = <&gpio2>;
+ interrupts = <12 IRQ_TYPE_LEVEL_LOW>;
+ interrupt-names = "INT2";
+};
--
Marcin Niestroj
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