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gpio-i2c describes an I2C controller (using gpios for data and clock), so it must be described in i2c, not gpio. Signed-off-by: Wolfram Sang <w.sang@pengutronix.de> Acked-by: Rob Herring <rob.herring@calxeda.com>
33 lines
720 B
Plaintext
33 lines
720 B
Plaintext
Device-Tree bindings for i2c gpio driver
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Required properties:
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- compatible = "i2c-gpio";
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- gpios: sda and scl gpio
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Optional properties:
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- i2c-gpio,sda-open-drain: sda as open drain
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- i2c-gpio,scl-open-drain: scl as open drain
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- i2c-gpio,scl-output-only: scl as output only
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- i2c-gpio,delay-us: delay between GPIO operations (may depend on each platform)
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- i2c-gpio,timeout-ms: timeout to get data
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Example nodes:
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i2c@0 {
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compatible = "i2c-gpio";
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gpios = <&pioA 23 0 /* sda */
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&pioA 24 0 /* scl */
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>;
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i2c-gpio,sda-open-drain;
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i2c-gpio,scl-open-drain;
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i2c-gpio,delay-us = <2>; /* ~100 kHz */
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#address-cells = <1>;
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#size-cells = <0>;
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rv3029c2@56 {
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compatible = "rv3029c2";
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reg = <0x56>;
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};
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};
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