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| author | Wolfram Sang <w.sang@pengutronix.de> | 2012-04-20 17:08:02 +0200 |
|---|---|---|
| committer | Wolfram Sang <w.sang@pengutronix.de> | 2012-07-08 12:49:12 +0200 |
| commit | f14cf2fb8d30f9dad2e532a4e3f1ed4ca82fbc3b (patch) | |
| tree | ec1f4375b7bb8ac2864327f4cd59e99b65b8950a /Documentation/devicetree/bindings/i2c | |
| parent | 6887a4131da3adaab011613776d865f4bcfb5678 (diff) | |
| download | blackbird-obmc-linux-f14cf2fb8d30f9dad2e532a4e3f1ed4ca82fbc3b.tar.gz blackbird-obmc-linux-f14cf2fb8d30f9dad2e532a4e3f1ed4ca82fbc3b.zip | |
devicetree: bindings: gpio-i2c belongs to i2c not gpio
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>
Diffstat (limited to 'Documentation/devicetree/bindings/i2c')
| -rw-r--r-- | Documentation/devicetree/bindings/i2c/gpio-i2c.txt | 32 |
1 files changed, 32 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/i2c/gpio-i2c.txt b/Documentation/devicetree/bindings/i2c/gpio-i2c.txt new file mode 100644 index 000000000000..4f8ec947c6bd --- /dev/null +++ b/Documentation/devicetree/bindings/i2c/gpio-i2c.txt @@ -0,0 +1,32 @@ +Device-Tree bindings for i2c gpio driver + +Required properties: + - compatible = "i2c-gpio"; + - gpios: sda and scl gpio + + +Optional properties: + - i2c-gpio,sda-open-drain: sda as open drain + - i2c-gpio,scl-open-drain: scl as open drain + - i2c-gpio,scl-output-only: scl as output only + - i2c-gpio,delay-us: delay between GPIO operations (may depend on each platform) + - i2c-gpio,timeout-ms: timeout to get data + +Example nodes: + +i2c@0 { + compatible = "i2c-gpio"; + gpios = <&pioA 23 0 /* sda */ + &pioA 24 0 /* scl */ + >; + i2c-gpio,sda-open-drain; + i2c-gpio,scl-open-drain; + i2c-gpio,delay-us = <2>; /* ~100 kHz */ + #address-cells = <1>; + #size-cells = <0>; + + rv3029c2@56 { + compatible = "rv3029c2"; + reg = <0x56>; + }; +}; |
