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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-27 10:05:51 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-27 10:05:51 +0000 |
commit | 5d1646d90e1f2cceb9f0828f4b28318cd0ec7744 (patch) | |
tree | a94efe259b9009378be6d90eb30d2b019d95c194 /Documentation/devicetree/bindings/i2c/i2c-davinci.txt | |
parent | Initial commit. (diff) | |
download | linux-upstream/5.10.209.tar.xz linux-upstream/5.10.209.zip |
Adding upstream version 5.10.209.upstream/5.10.209upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to '')
-rw-r--r-- | Documentation/devicetree/bindings/i2c/i2c-davinci.txt | 43 |
1 files changed, 43 insertions, 0 deletions
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>; + }; + }; |