45 lines
1.6 KiB
Plaintext
45 lines
1.6 KiB
Plaintext
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AKM AK09911 3-axis electronic compass driver
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Required properties:
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- compatible : Should be "ak,ak09911" or "akm,akm09911".
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- reg : i2c address of the device.
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- pinctrl-names : The pinctrl configration names of this sensor driver. Should be "default","reset".
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- pinctrl-0 : The pinctrl node corresponding to "default", should be <&akm_default>.
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- pinctrl-1 : The pinctrl node corresponding to "reset", should be <&akm_reset>.
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- vdd-supply : Analog power supply needed to power up the device.
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- vio-supply : Digital IO power supply needed for IO and I2C.
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- akm,layout : The layout of the ecompass sensor chip. There are 8
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patterns of layout described as below:
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0: Indicate the invalid pattern, The userspace will decide the pattern.
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1: 1st pin is right down
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2: 1st pin is left down
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3: 1st pin is left top
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4: 1st pin is right top
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5: 1st pin is left down (from top view)
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6: 1st pin is left top (from top view)
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7: 1st pin is right top (from top view)
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8: 1st pin is right down (from top view)
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- akm,gpio_rstn : The gpio pin to reset the sensor chip.
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Optional properites:
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- akm,auto-report : Enable auto-report mode.
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- akm,use-hrtimer : Enable the hrtimer mode. The hrtimer will be used as the poling
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delay timer, and high priority workqueue will be used in order to get a more stable polling interval.
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Example:
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akm@c {
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compatible = "ak,ak09911";
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reg = <0x0c>;
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pinctrl-names = "default","reset";
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pinctrl-0 = <&akm_default>;
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pinctrl-1 = <&akm_reset>;
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vdd-supply = <&pm8110_l19>;
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vio-supply = <&pm8110_l14>;
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akm,layout = <0x0>;
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akm,gpio_rstn = <&msmgpio 82 0x0>;
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akm,auto-report;
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};
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