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- I2C for R-Car platforms
- Required properties:
- - compatible: Must be one of
- "renesas,i2c-rcar"
- "renesas,i2c-r8a7778"
- "renesas,i2c-r8a7779"
- "renesas,i2c-r8a7790"
- "renesas,i2c-r8a7791"
- "renesas,i2c-r8a7792"
- "renesas,i2c-r8a7793"
- "renesas,i2c-r8a7794"
- "renesas,i2c-r8a7795"
- "renesas,i2c-r8a7796"
- - reg: physical base address of the controller and length of memory mapped
- region.
- - interrupts: interrupt specifier.
- Optional properties:
- - clock-frequency: desired I2C bus clock frequency in Hz. The absence of this
- property indicates the default frequency 100 kHz.
- - clocks: clock specifier.
- - dmas: Must contain a list of two references to DMA specifiers, one for
- transmission, and one for reception.
- - dma-names: Must contain a list of two DMA names, "tx" and "rx".
- - i2c-scl-falling-time-ns: see i2c.txt
- - i2c-scl-internal-delay-ns: see i2c.txt
- - i2c-scl-rising-time-ns: see i2c.txt
- Examples :
- i2c0: i2c@e6508000 {
- #address-cells = <1>;
- #size-cells = <0>;
- compatible = "renesas,i2c-r8a7791";
- reg = <0 0xe6508000 0 0x40>;
- interrupts = <0 287 IRQ_TYPE_LEVEL_HIGH>;
- clocks = <&mstp9_clks R8A7791_CLK_I2C0>;
- clock-frequency = <400000>;
- };
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