Re: [PATCH] iio: magnetometer: Add support for PNI RM3100 9-axis magnetometer

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On 20/09/2018 9:13 PM, Song Qiang wrote:
PNI RM3100 magnetometer is a high resolution, large signal immunity
magnetometer, composed of 3 single sensors and a processing chip.
PNI is currently not in the vendors list, so this is also adding it.


In the subject: Isn't the RM3100 a 3axis mag.
The 9axis bit comes when you combine it with an accel / gryo I think.

... snip

+++ b/Documentation/devicetree/bindings/iio/magnetometer/pni,rm3100.txt
@@ -0,0 +1,57 @@
+* PNI RM3100 9-axis magnetometer sensor
+
+I2C Bus:
+
+Required properties:
+
+- compatible : should be "pni,rm3100-i2c"
+- reg : the I2C address of the magnetometer
+

... snip

+SPI Bus:
+
+Required properties:
+
+- compatible : should be "pni,rm3100-spi"
+- reg : address of sensor, usually 0 or 1.
+

Looking at other drivers supporting i2c / spi.
They use the same compatible for both.

eg: see iio/accel/adxl345_*.c

and it's binding doc:

Required properties:
 - compatible : should be "adi,adxl345"
 - reg : the I2C address or SPI chip select number of the sensor




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