[PATCH v2 2/2] doc: dt: add documentation for nxp,lpc1788-i2c
From: Joachim Eastwood <hidden>
Date: 2015-08-16 18:10:17
Also in:
linux-arm-kernel, linux-i2c
Subsystem:
i2c subsystem host drivers, open firmware and flattened device tree bindings, the rest · Maintainers:
Andi Shyti, Rob Herring, Krzysztof Kozlowski, Conor Dooley, Linus Torvalds
Add binding documentation for the nxp,lpc1788-i2c controller which also can be found on LPC2xxx, LPC178x/7x and LPC18xx/43xx devices. Signed-off-by: Joachim Eastwood <redacted> --- .../devicetree/bindings/i2c/i2c-lpc2k.txt | 33 ++++++++++++++++++++++ 1 file changed, 33 insertions(+) create mode 100644 Documentation/devicetree/bindings/i2c/i2c-lpc2k.txt
diff --git a/Documentation/devicetree/bindings/i2c/i2c-lpc2k.txt b/Documentation/devicetree/bindings/i2c/i2c-lpc2k.txt
new file mode 100644
index 000000000000..4101aa621ad4
--- /dev/null
+++ b/Documentation/devicetree/bindings/i2c/i2c-lpc2k.txt@@ -0,0 +1,33 @@ +NXP I2C controller for LPC2xxx/178x/18xx/43xx + +Required properties: + - compatible: must be "nxp,lpc1788-i2c" + - reg: physical address and length of the device registers + - interrupts: a single interrupt specifier + - clocks: clock for the device + - #address-cells: should be <1> + - #size-cells: should be <0> + +Optional properties: +- clock-frequency: the desired I2C bus clock frequency in Hz; in + absence of this property the default value is used (100 kHz). + +Example: +i2c0: i2c@400a1000 { + compatible = "nxp,lpc1788-i2c"; + reg = <0x400a1000 0x1000>; + interrupts = <18>; + clocks = <&ccu1 CLK_APB1_I2C0>; + #address-cells = <1>; + #size-cells = <0>; +}; + +&i2c0 { + clock-frequency = <400000>; + + lm75@48 { + compatible = "nxp,lm75"; + reg = <0x48>; + }; +}; +
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1.8.0