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Commit c3003ce1 authored by Geert Uytterhoeven's avatar Geert Uytterhoeven Committed by Mark Brown
Browse files

spi: sh-spi: Improve bindings 



  - Add future-proof "renesas,hspi-<soctype>" compatible values,
  - Add missing "interrupt-parent", "#address-cells", and "#size-cells"
    properties,
  - Add reference to pinctrl documentation,
  - Add example bindings.

Signed-off-by: default avatarGeert Uytterhoeven <geert+renesas@linux-m68k.org>
Signed-off-by: default avatarMark Brown <broonie@linaro.org>
parent e428a420

Documentation/devicetree/bindings/spi/sh-hspi.txt

+25 −3
Original line number Diff line number Diff line 
Renesas HSPI.



Required properties:

- compatible : 	"renesas,hspi"

- compatible       : "renesas,hspi-<soctype>", "renesas,hspi" as fallback.

		     Examples with soctypes are:

		       - "renesas,hspi-r8a7778" (R-Car M1)

		       - "renesas,hspi-r8a7779" (R-Car H1)

- reg              : Offset and length of the register set for the device

- interrupts : interrupt line used by HSPI

- interrupt-parent : The phandle for the interrupt controller that

		     services interrupts for this device

- interrupts       : Interrupt specifier

- #address-cells   : Must be <1>

- #size-cells      : Must be <0>



Pinctrl properties might be needed, too.  See

Documentation/devicetree/bindings/pinctrl/renesas,*.



Example:



	hspi0: spi@fffc7000 {

		compatible = "renesas,hspi-r8a7778", "renesas,hspi";

		reg = <0xfffc7000 0x18>;

		interrupt-parent = <&gic>;

		interrupts = <0 63 IRQ_TYPE_LEVEL_HIGH>;

		#address-cells = <1>;

		#size-cells = <0>;

		status = "disabled";

	};