This adds device tree bindings for the AK8974 magnetometer, similar
to those for the AK8975.
Cc: devicetree@xxxxxxxxxxxxxxx
Cc: Samu Onkalo <samu.onkalo@xxxxxxxxx>
Cc: Sebastian Reichel <sre@xxxxxxxxxx>
Acked-by: Rob Herring <robh@xxxxxxxxxx>
Signed-off-by: Linus Walleij <linus.walleij@xxxxxxxxxx>
---
ChangeLog v3->v4:
- Add support for an optional mounting matrix
ChangeLog v2->v3:
- No changes, just reposting to keep together with the series
ChangeLog v1->v2:
- No changes, just reposting to keep together with the series
---
.../bindings/iio/magnetometer/ak8974.txt | 29 ++++++++++++++++++++++
1 file changed, 29 insertions(+)
create mode 100644 Documentation/devicetree/bindings/iio/magnetometer/ak8974.txt
diff --git a/Documentation/devicetree/bindings/iio/magnetometer/ak8974.txt b/Documentation/devicetree/bindings/iio/magnetometer/ak8974.txt
new file mode 100644
index 000000000000..77d5aba1bd8c
--- /dev/null
+++ b/Documentation/devicetree/bindings/iio/magnetometer/ak8974.txt
@@ -0,0 +1,29 @@
+* Asahi Kasei AK8974 magnetometer sensor
+
+Required properties:
+
+- compatible : should be "asahi-kasei,ak8974"
+- reg : the I2C address of the magnetometer
+
+Optional properties:
+
+- avdd-supply: regulator supply for the analog voltage
+ (see regulator/regulator.txt)
+- dvdd-supply: regulator supply for the digital voltage
+ (see regulator/regulator.txt)
+- interrupts: data ready (DRDY) and interrupt (INT1) lines
+ from the chip, the DRDY interrupt must be placed first.
+ The interrupts can be triggered on rising or falling
+ edges alike.
+- mount-matrix: an optional 3x3 mounting rotation matrix
+
+Example:
+
+ak8974@0f {
+ compatible = "asahi-kasei,ak8974";
+ reg = <0x0f>;
+ avdd-supply = <&foo_reg>;
+ dvdd-supply = <&bar_reg>;
+ interrupts = <0 IRQ_TYPE_EDGE_RISING>,
+ <1 IRQ_TYPE_EDGE_RISING>;
+};
--
2.7.4
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