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Commit 5112941b authored by Puneet Yatnal's avatar Puneet Yatnal Committed by Gerrit - the friendly Code Review server
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Documentation: DT: Add IAM20680 & SMI130 IMU DT Bindings 



Added IAM20680 and SMI130 DT bindings in the documentation.

Change-Id: Iaf717e7baa63bc6394f2bc3f2b25aef79dcba69a
Signed-off-by: default avatarPuneet Yatnal <puneet@codeaurora.org>
parent ca672a63

Documentation/devicetree/bindings/iio/imu/invn-iam20680.txt

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The IAM20680 sensor is 6-axis gyroscope+accelerometer combo

device which is made by InvenSense Inc.



Required properties:



 - compatible   : Should be "invn,iam20680".

 - reg          : the I2C address which depends on the AD0 pin.

 - gpios        : INVENSENSE GPIO in the format described by ../gpio/gpio.txt



Optional properties:

 - inven,vdd_ana-supply :

 - inven,vcc_i2c-supply :

 - inven,gpio_int1 :

 - axis_map_x :

 - axis_map_y :

 - axis_map_z :

 - negate_x   :

 - negate_y   :

 - negate_z   :

 - fs_range :

 - poll_interval :

 - min_interval :

 - inven,secondary_reg :

 - inven,secondary_type :

 - inven,secondary_name :

 - inven,secondary_axis_map_x :

 - inven,secondary_axis_map_y :

 - inven,secondary_axis_map_z :

 - inven,secondary_negate_x :

 - inven,secondary_negate_y :

 - inven,secondary_negate_z :

 - inven,aux_type :

 - inven,aux_name :

 - inven,aux_reg :

 - inven,read_only_slave_type :

 - inven,read_only_slave_name :

 - inven,read_only_slave_reg :



Example:

	iam20680@69 {

		compatible = "inven,iam20680";

		reg = <0x69>;

		pinctrl-names = "default";

		pinctrl-0 = <&int1_default>;

		interrupt-parent = <&tlmm_pinmux>;

		interrupts = <78 IRQ_TYPE_EDGE_RISING>;

		inven,vdd_ana-supply = <&pm8941_l17>;

		inven,vcc_i2c-supply = <&pm8941_lvs1>;

		inven,gpio_int1 = <&msmgpio 73 0x00>;

		axis_map_x = <1>;

		axis_map_y = <0>;

		axis_map_z = <2>;

		negate_x = <1>;

		negate_y = <0>;

		negate_z = <0>;

		fs_range = <0x00>;

		poll_interval = <200>;

		min_interval = <5>;

		inven,secondary_reg = <0x0c>;

		/* If no compass sensor,

		 * replace "compass" with "none"

		 */

		inven,secondary_type = "compass";

		inven,secondary_name = "ak09911";

		inven,secondary_axis_map_x = <1>;

		inven,secondary_axis_map_y = <0>;

		inven,secondary_axis_map_z = <2>;

		inven,secondary_negate_x = <1>;

		inven,secondary_negate_y = <1>;

		inven,secondary_negate_z = <1>;

		/* If no pressure sensor,

		 * replace "pressure" with "none"

		 */

		inven,aux_type = "pressure";

		inven,aux_name = "bmp280";

		inven,aux_reg = <0x76>;

		/* If no ALS sensor

		 * replace "als" with "none"

		 */

		inven,read_only_slave_type = "als";

		inven,read_only_slave_name = "apds9930";

		inven,read_only_slave_reg = <0x39>;

	};

Documentation/devicetree/bindings/input/sensors/smi130.txt

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The SMI130 is a highly integrated, low power inertial measurement unit (IMU)

that provides precise acceleration and angular rate (gyroscopic) measurement.



To enable driver probing, add the smi130_gyro and smi130_acc node to the platform

device tree as described below.



Required properties:



- compatible: "smi130_gyro", "smi130_acc"

- reg: the I2C address or SPI chip select the device will respond to

- interrupt-parent: phandle to the parent interrupt controller as documented in [interrupts][4]

- interrupts: interrupt mapping for IRQ as documented in [interrupts][4]



Recommended properties for SPI bus usage:

- spi-max-frequency: maximum SPI bus frequency as documented in [SPI][3]



Optional properties:

- smi130_gyro,gpio_irq: MEMS sensor interrupt line to use (default 1)



I2C example (based on Raspberry PI 3):



        &i2c0 {

                status = "ok";

                #address-cells = <0x1>;

                #size-cells = <0x0>;

                smi130_gyro@68 {

                        compatible = "smi130_gyro";

                        reg = <0x68>;

                        interrupt-parent = <&gpio>;

                        interrupts = <26 IRQ_TYPE_EDGE_RISING>;

                };

                smi130_acc@18 {

                        compatible = "smi130_acc";

                        reg = <0x18>;

                        interrupt-parent = <&gpio>;

                        interrupts = <25 IRQ_TYPE_EDGE_RISING>;

                };



SPI example (based on Raspberry PI 3):



        &spi0 {

                status = "ok";

                #address-cells = <0x1>;

                #size-cells = <0x0>;

                smi130_gyro@68 {

                        compatible = "smi130_gyro";

                        reg = <0x68>;

                        interrupt-parent = <&gpio>;

                        interrupts = <26 IRQ_TYPE_EDGE_RISING>;

                };

                smi130_acc@18 {

                        compatible = "smi130_acc";

                        reg = <0x18>;

                        interrupt-parent = <&gpio>;

                        interrupts = <25 IRQ_TYPE_EDGE_RISING>;

                };

Documentation/devicetree/bindings/vendor-prefixes.txt

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@@ -390,3 +390,4 @@ zidoo Shenzhen Zidoo Technology Co., Ltd. 
zii	Zodiac Inflight Innovations

zte	ZTE Corp.

zyxel	ZyXEL Communications Corp.

inven   InvenSense, Inc.