b880ccaf17
Add per-Generation fallback bindings for R-Car SoCs. This is in keeping with the compatibility string scheme is being adopted for drivers for Renesas SoCs. Also, improve readability by listing the rmobile fallback compatibility string after the more-specific compatibility strings they provide a fallback for. Signed-off-by: Simon Horman <horms+renesas@verge.net.au> Acked-by: Geert Uytterhoeven <geert+renesas@glider.be> Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
53 lines
1.7 KiB
Plaintext
53 lines
1.7 KiB
Plaintext
Device tree configuration for Renesas IIC (sh_mobile) driver
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Required properties:
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- compatible :
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- "renesas,iic-r8a73a4" (R-Mobile APE6)
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- "renesas,iic-r8a7740" (R-Mobile A1)
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- "renesas,iic-r8a7790" (R-Car H2)
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- "renesas,iic-r8a7791" (R-Car M2-W)
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- "renesas,iic-r8a7792" (R-Car V2H)
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- "renesas,iic-r8a7793" (R-Car M2-N)
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- "renesas,iic-r8a7794" (R-Car E2)
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- "renesas,iic-r8a7795" (R-Car H3)
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- "renesas,iic-sh73a0" (SH-Mobile AG5)
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- "renesas,rcar-gen2-iic" (generic R-Car Gen2 compatible device)
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- "renesas,rcar-gen3-iic" (generic R-Car Gen3 compatible device)
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- "renesas,rmobile-iic" (generic device)
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When compatible with a generic R-Car version, nodes
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must list the SoC-specific version corresponding to
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the platform first followed by the generic R-Car
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version.
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renesas,rmobile-iic must always follow.
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- reg : address start and address range size of device
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- interrupts : interrupt of device
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- clocks : clock for device
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- #address-cells : should be <1>
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- #size-cells : should be <0>
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Optional properties:
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- clock-frequency : frequency of bus clock in Hz. Default 100kHz if unset.
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- dmas : Must contain a list of two references to DMA
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specifiers, one for transmission, and one for
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reception.
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- dma-names : Must contain a list of two DMA names, "tx" and "rx".
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Pinctrl properties might be needed, too. See there.
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Example:
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iic0: i2c@e6500000 {
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compatible = "renesas,iic-r8a7790", "renesas,rcar-gen2-iic",
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"renesas,rmobile-iic";
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reg = <0 0xe6500000 0 0x425>;
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interrupts = <0 174 IRQ_TYPE_LEVEL_HIGH>;
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clocks = <&mstp3_clks R8A7790_CLK_IIC0>;
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clock-frequency = <400000>;
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#address-cells = <1>;
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#size-cells = <0>;
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};
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