From e00ad7ef68e4882a18ac78d82348be09e8d0263b Mon Sep 17 00:00:00 2001 From: Chris Packham Date: Mon, 26 Jun 2017 12:44:30 +1200 Subject: [PATCH] dt-bindings: add bindings for i2c-pca-platform Signed-off-by: Chris Packham Acked-by: Rob Herring Signed-off-by: Wolfram Sang --- .../bindings/i2c/i2c-pca-platform.txt | 29 +++++++++++++++++++ 1 file changed, 29 insertions(+) create mode 100644 Documentation/devicetree/bindings/i2c/i2c-pca-platform.txt diff --git a/Documentation/devicetree/bindings/i2c/i2c-pca-platform.txt b/Documentation/devicetree/bindings/i2c/i2c-pca-platform.txt new file mode 100644 index 000000000000..f1f3876bb8e8 --- /dev/null +++ b/Documentation/devicetree/bindings/i2c/i2c-pca-platform.txt @@ -0,0 +1,29 @@ +* NXP PCA PCA9564/PCA9665 I2C controller + +The PCA9564/PCA9665 serves as an interface between most standard +parallel-bus microcontrollers/microprocessors and the serial I2C-bus +and allows the parallel bus system to communicate bi-directionally +with the I2C-bus. + +Required properties : + + - reg : Offset and length of the register set for the device + - compatible : one of "nxp,pca9564" or "nxp,pca9665" + +Optional properties + - interrupts : the interrupt number + - interrupt-parent : the phandle for the interrupt controller. + If an interrupt is not specified polling will be used. + - reset-gpios : gpio specifier for gpio connected to RESET_N pin. As the line + is active low, it should be marked GPIO_ACTIVE_LOW. + - clock-frequency : I2C bus frequency. + +Example: + i2c0: i2c@80000 { + compatible = "nxp,pca9564"; + #address-cells = <1>; + #size-cells = <0>; + reg = <0x80000 0x4>; + reset-gpios = <&gpio1 0 GPIO_ACTIVE_LOW>; + clock-frequency = <100000>; + }; -- 2.20.1