From 76cb841cb886eef6b3bee341a2266c76578724ad Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Mon, 6 May 2024 03:02:30 +0200 Subject: Adding upstream version 4.19.249. Signed-off-by: Daniel Baumann --- .../devicetree/bindings/i2c/i2c-davinci.txt | 43 ++++++++++++++++++++++ 1 file changed, 43 insertions(+) create mode 100644 Documentation/devicetree/bindings/i2c/i2c-davinci.txt (limited to 'Documentation/devicetree/bindings/i2c/i2c-davinci.txt') diff --git a/Documentation/devicetree/bindings/i2c/i2c-davinci.txt b/Documentation/devicetree/bindings/i2c/i2c-davinci.txt new file mode 100644 index 000000000..b745f3706 --- /dev/null +++ b/Documentation/devicetree/bindings/i2c/i2c-davinci.txt @@ -0,0 +1,43 @@ +* Texas Instruments Davinci/Keystone I2C + +This file provides information, what the device node for the +davinci/keystone i2c interface contains. + +Required properties: +- compatible: "ti,davinci-i2c" or "ti,keystone-i2c"; +- reg : Offset and length of the register set for the device +- clocks: I2C functional clock phandle. + For 66AK2G this property should be set per binding, + Documentation/devicetree/bindings/clock/ti,sci-clk.txt + +SoC-specific Required Properties: + +The following are mandatory properties for Keystone 2 66AK2G SoCs only: + +- power-domains: Should contain a phandle to a PM domain provider node + and an args specifier containing the I2C device id + value. This property is as per the binding, + Documentation/devicetree/bindings/soc/ti/sci-pm-domain.txt + +Recommended properties : +- interrupts : standard interrupt property. +- clock-frequency : desired I2C bus clock frequency in Hz. +- ti,has-pfunc: boolean; if defined, it indicates that SoC supports PFUNC + registers. PFUNC registers allow to switch I2C pins to function as + GPIOs, so they can be toggled manually. + +Example (enbw_cmc board): + i2c@1c22000 { + compatible = "ti,davinci-i2c"; + reg = <0x22000 0x1000>; + clock-frequency = <100000>; + interrupts = <15>; + interrupt-parent = <&intc>; + #address-cells = <1>; + #size-cells = <0>; + + dtt@48 { + compatible = "national,lm75"; + reg = <0x48>; + }; + }; -- cgit v1.2.3