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d3b018f757
By default, cells in DT are 32-bit in size. The driver reads "ti,mode" using the function of_property_read_u8() which causes the value to be read incorrectly in little-endian architectures if the size is not specified. Make it explicit in the binding documentation that this prorperty must be set as a 8-bit value. Signed-off-by: Carlos Menin <menin@carlosaurelio.net> Reviewed-by: Rob Herring <robh@kernel.org> Signed-off-by: Guenter Roeck <linux@roeck-us.net>
39 lines
1.1 KiB
Plaintext
39 lines
1.1 KiB
Plaintext
TI ADC128D818 ADC System Monitor With Temperature Sensor
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--------------------------------------------------------
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Operation modes:
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- Mode 0: 7 single-ended voltage readings (IN0-IN6),
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1 temperature reading (internal)
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- Mode 1: 8 single-ended voltage readings (IN0-IN7),
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no temperature
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- Mode 2: 4 pseudo-differential voltage readings
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(IN0-IN1, IN3-IN2, IN4-IN5, IN7-IN6),
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1 temperature reading (internal)
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- Mode 3: 4 single-ended voltage readings (IN0-IN3),
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2 pseudo-differential voltage readings
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(IN4-IN5, IN7-IN6),
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1 temperature reading (internal)
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If no operation mode is configured via device tree, the driver keeps the
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currently active chip operation mode (default is mode 0).
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Required node properties:
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- compatible: must be set to "ti,adc128d818"
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- reg: I2C address of the device
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Optional node properties:
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- ti,mode: Operation mode (u8) (see above).
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Example (operation mode 2):
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adc128d818@1d {
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compatible = "ti,adc128d818";
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reg = <0x1d>;
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ti,mode = /bits/ 8 <2>;
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};
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