tjh.dev
Linux kernel mirror (for testing)
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kernel
os
linux
1* Ingenic JZ4780 I2C Bus controller
2
3Required properties:
4- compatible: should be "ingenic,jz4780-i2c"
5- reg: Should contain the address & size of the I2C controller registers.
6- interrupts: Should specify the interrupt provided by parent.
7- clocks: Should contain a single clock specifier for the JZ4780 I2C clock.
8- clock-frequency: desired I2C bus clock frequency in Hz.
9
10Recommended properties:
11- pinctrl-names: should be "default";
12- pinctrl-0: phandle to pinctrl function
13
14Optional properties:
15- interrupt-parent: Should be the phandle of the interrupt controller that
16 delivers interrupts to the I2C block.
17
18Example
19
20/ {
21 i2c4: i2c4@0x10054000 {
22 compatible = "ingenic,jz4780-i2c";
23 reg = <0x10054000 0x1000>;
24
25 interrupt-parent = <&intc>;
26 interrupts = <56>;
27
28 clocks = <&cgu JZ4780_CLK_SMB4>;
29 clock-frequency = <100000>;
30 pinctrl-names = "default";
31 pinctrl-0 = <&pins_i2c4_data>;
32
33 };
34};
35