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Diffstat (limited to 'Documentation/devicetree/bindings/i2c/i2c-sh_mobile.txt')
| -rw-r--r-- | Documentation/devicetree/bindings/i2c/i2c-sh_mobile.txt | 40 |
1 files changed, 40 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/i2c/i2c-sh_mobile.txt b/Documentation/devicetree/bindings/i2c/i2c-sh_mobile.txt new file mode 100644 index 000000000..2bfc6e7ed --- /dev/null +++ b/Documentation/devicetree/bindings/i2c/i2c-sh_mobile.txt @@ -0,0 +1,40 @@ +Device tree configuration for Renesas IIC (sh_mobile) driver + +Required properties: +- compatible : "renesas,iic-<soctype>". "renesas,rmobile-iic" as fallback + Examples with soctypes are: + - "renesas,iic-r8a73a4" (R-Mobile APE6) + - "renesas,iic-r8a7740" (R-Mobile A1) + - "renesas,iic-r8a7790" (R-Car H2) + - "renesas,iic-r8a7791" (R-Car M2-W) + - "renesas,iic-r8a7792" (R-Car V2H) + - "renesas,iic-r8a7793" (R-Car M2-N) + - "renesas,iic-r8a7794" (R-Car E2) + - "renesas,iic-sh73a0" (SH-Mobile AG5) +- reg : address start and address range size of device +- interrupts : interrupt of device +- clocks : clock for device +- #address-cells : should be <1> +- #size-cells : should be <0> + +Optional properties: +- clock-frequency : frequency of bus clock in Hz. Default 100kHz if unset. +- 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". + + +Pinctrl properties might be needed, too. See there. + +Example: + + iic0: i2c@e6500000 { + compatible = "renesas,iic-r8a7790", "renesas,rmobile-iic"; + reg = <0 0xe6500000 0 0x425>; + interrupts = <0 174 IRQ_TYPE_LEVEL_HIGH>; + clocks = <&mstp3_clks R8A7790_CLK_IIC0>; + clock-frequency = <400000>; + #address-cells = <1>; + #size-cells = <0>; + }; |