Unverified Commit 7ec844a2 authored by Alain Volmat's avatar Alain Volmat Committed by Mark Brown
Browse files

spi: spi-st-ssc: convert to DT schema 



Convert spi-st-ssc.txt into st,ssc-spi.yaml for the
ST Microelectronics SSC SPI driver.

Signed-off-by: default avatarAlain Volmat <avolmat@me.com>
Reviewed-by: default avatarKrzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Link: https://lore.kernel.org/r/20230213192349.17101-1-avolmat@me.com


Signed-off-by: default avatarMark Brown <broonie@kernel.org>
parent 9d77522b

Documentation/devicetree/bindings/spi/spi-st-ssc.txt

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STMicroelectronics SSC (SPI) Controller

---------------------------------------



Required properties:

- compatible	: "st,comms-ssc4-spi"

- reg		: Offset and length of the device's register set

- interrupts	: The interrupt specifier

- clock-names	: Must contain "ssc"

- clocks	: Must contain an entry for each name in clock-names

		    See ../clk/*

- pinctrl-names	: Uses "default", can use "sleep" if provided

		    See ../pinctrl/pinctrl-bindings.txt



Optional properties:

- cs-gpios	: List of GPIO chip selects

		    See ../spi/spi-bus.txt



Child nodes represent devices on the SPI bus

  See ../spi/spi-bus.txt



Example:

	spi@9840000 {

		compatible	= "st,comms-ssc4-spi";

		reg		= <0x9840000 0x110>;

		interrupts	= <GIC_SPI 112 IRQ_TYPE_LEVEL_HIGH>;

		clocks		= <&clk_s_c0_flexgen CLK_EXT2F_A9>;

		clock-names	= "ssc";

		pinctrl-0	= <&pinctrl_spi0_default>;

		pinctrl-names	= "default";

		cs-gpios	= <&pio17 5 0>;

		#address-cells	= <1>;

		#size-cells	= <0>;



		st95hf@0{

			compatible		= "st,st95hf";

			reg			= <0>;

			spi-max-frequency	= <1000000>;

			interrupts		= <2 IRQ_TYPE_EDGE_FALLING>;

		};

	};

Documentation/devicetree/bindings/spi/st,ssc-spi.yaml

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# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)

%YAML 1.2

---

$id: http://devicetree.org/schemas/spi/st,ssc-spi.yaml#

$schema: http://devicetree.org/meta-schemas/core.yaml#



title: STMicroelectronics SSC SPI Controller



description: |

  The STMicroelectronics SSC SPI controller can be found on STi platforms

  and it used to communicate with external devices using the

  Serial Peripheral Interface.



maintainers:

  - Patrice Chotard <patrice.chotard@foss.st.com>



allOf:

  - $ref: spi-controller.yaml#



properties:

  compatible:

    const: st,comms-ssc4-spi



  reg:

    maxItems: 1



  clocks:

    maxItems: 1



  clock-names:

    const: ssc



  interrupts:

    maxItems: 1



required:

  - compatible

  - reg

  - clocks

  - clock-names

  - interrupts



unevaluatedProperties: false



examples:

  - |

    #include <dt-bindings/interrupt-controller/arm-gic.h>

    #include <dt-bindings/clock/stih407-clks.h>

    spi@9840000 {

      compatible = "st,comms-ssc4-spi";

      reg = <0x9840000 0x110>;

      interrupts = <GIC_SPI 112 IRQ_TYPE_LEVEL_HIGH>;

      clocks = <&clk_s_c0_flexgen CLK_EXT2F_A9>;

      clock-names = "ssc";

      pinctrl-0 = <&pinctrl_spi0_default>;

      pinctrl-names = "default";

      #address-cells = <1>;

      #size-cells = <0>;

    };



...

MAINTAINERS

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@@ -2925,6 +2925,7 @@ M: Patrice Chotard <patrice.chotard@foss.st.com> 
L:	linux-arm-kernel@lists.infradead.org (moderated for non-subscribers)

S:	Maintained

W:	http://www.stlinux.com

F:	Documentation/devicetree/bindings/spi/st,ssc-spi.yaml

F:	Documentation/devicetree/bindings/i2c/i2c-st.txt

F:	arch/arm/boot/dts/sti*

F:	arch/arm/mach-sti/