From f3bfa0f07976a7996b6dedba21d2e0d164f08ce8 Mon Sep 17 00:00:00 2001 From: =?utf8?q?J=2E=20Neusch=C3=A4fer?= Date: Thu, 20 Feb 2025 13:46:32 +0100 Subject: [PATCH] spi: dt-bindings: Convert Freescale SPI bindings to YAML MIME-Version: 1.0 Content-Type: text/plain; charset=utf8 Content-Transfer-Encoding: 8bit fsl-spi.txt contains the bindings for the fsl,spi and fsl,espi contollers. Convert them to YAML. Reviewed-by: "Rob Herring (Arm)" Signed-off-by: J. Neuschäfer Link: https://patch.msgid.link/20250220-ppcyaml-spi-v3-1-e340613c7875@posteo.net Signed-off-by: Mark Brown --- .../devicetree/bindings/spi/fsl,espi.yaml | 65 ++++++++++++++++ .../devicetree/bindings/spi/fsl,spi.yaml | 74 +++++++++++++++++++ .../devicetree/bindings/spi/fsl-spi.txt | 62 ---------------- 3 files changed, 139 insertions(+), 62 deletions(-) create mode 100644 Documentation/devicetree/bindings/spi/fsl,espi.yaml create mode 100644 Documentation/devicetree/bindings/spi/fsl,spi.yaml delete mode 100644 Documentation/devicetree/bindings/spi/fsl-spi.txt diff --git a/Documentation/devicetree/bindings/spi/fsl,espi.yaml b/Documentation/devicetree/bindings/spi/fsl,espi.yaml new file mode 100644 index 0000000000000..d267bbfaf02f5 --- /dev/null +++ b/Documentation/devicetree/bindings/spi/fsl,espi.yaml @@ -0,0 +1,65 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/spi/fsl,espi.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Freescale eSPI (Enhanced Serial Peripheral Interface) controller + +maintainers: + - J. Neuschäfer + +properties: + compatible: + const: fsl,mpc8536-espi + + reg: + maxItems: 1 + + interrupts: + maxItems: 1 + + fsl,espi-num-chipselects: + $ref: /schemas/types.yaml#/definitions/uint32 + enum: [ 1, 4 ] + description: The number of the chipselect signals. + + fsl,csbef: + $ref: /schemas/types.yaml#/definitions/uint32 + minimum: 0 + maximum: 15 + description: Chip select assertion time in bits before frame starts + + fsl,csaft: + $ref: /schemas/types.yaml#/definitions/uint32 + minimum: 0 + maximum: 15 + description: Chip select negation time in bits after frame ends + +required: + - compatible + - reg + - interrupts + - fsl,espi-num-chipselects + +allOf: + - $ref: spi-controller.yaml# + +unevaluatedProperties: false + +examples: + - | + #include + + spi@110000 { + compatible = "fsl,mpc8536-espi"; + reg = <0x110000 0x1000>; + #address-cells = <1>; + #size-cells = <0>; + interrupts = <53 IRQ_TYPE_EDGE_FALLING>; + fsl,espi-num-chipselects = <4>; + fsl,csbef = <1>; + fsl,csaft = <1>; + }; + +... diff --git a/Documentation/devicetree/bindings/spi/fsl,spi.yaml b/Documentation/devicetree/bindings/spi/fsl,spi.yaml new file mode 100644 index 0000000000000..d74792fc9bf2d --- /dev/null +++ b/Documentation/devicetree/bindings/spi/fsl,spi.yaml @@ -0,0 +1,74 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/spi/fsl,spi.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Freescale SPI (Serial Peripheral Interface) controller + +maintainers: + - J. Neuschäfer + +properties: + compatible: + enum: + - fsl,spi + - aeroflexgaisler,spictrl + + reg: + maxItems: 1 + + cell-index: + $ref: /schemas/types.yaml#/definitions/uint32 + description: | + QE SPI subblock index. + 0: QE subblock SPI1 + 1: QE subblock SPI2 + + mode: + description: SPI operation mode + enum: + - cpu + - cpu-qe + + interrupts: + maxItems: 1 + + clock-frequency: + description: input clock frequency to non FSL_SOC cores + + cs-gpios: true + + fsl,spisel_boot: + $ref: /schemas/types.yaml#/definitions/flag + description: + For the MPC8306 and MPC8309, specifies that the SPISEL_BOOT signal is used + as chip select for a slave device. Use reg = in the + corresponding child node, i.e. 0 if the cs-gpios property is not present. + +required: + - compatible + - reg + - mode + - interrupts + +allOf: + - $ref: spi-controller.yaml# + +unevaluatedProperties: false + +examples: + - | + #include + + spi@4c0 { + compatible = "fsl,spi"; + reg = <0x4c0 0x40>; + cell-index = <0>; + interrupts = <82 0>; + mode = "cpu"; + cs-gpios = <&gpio 18 IRQ_TYPE_EDGE_RISING // device reg=<0> + &gpio 19 IRQ_TYPE_EDGE_RISING>; // device reg=<1> + }; + +... diff --git a/Documentation/devicetree/bindings/spi/fsl-spi.txt b/Documentation/devicetree/bindings/spi/fsl-spi.txt deleted file mode 100644 index 0654380eb7515..0000000000000 --- a/Documentation/devicetree/bindings/spi/fsl-spi.txt +++ /dev/null @@ -1,62 +0,0 @@ -* SPI (Serial Peripheral Interface) - -Required properties: -- cell-index : QE SPI subblock index. - 0: QE subblock SPI1 - 1: QE subblock SPI2 -- compatible : should be "fsl,spi" or "aeroflexgaisler,spictrl". -- mode : the SPI operation mode, it can be "cpu" or "cpu-qe". -- reg : Offset and length of the register set for the device -- interrupts : where a is the interrupt number and b is a - field that represents an encoding of the sense and level - information for the interrupt. This should be encoded based on - the information in section 2) depending on the type of interrupt - controller you have. -- clock-frequency : input clock frequency to non FSL_SOC cores - -Optional properties: -- cs-gpios : specifies the gpio pins to be used for chipselects. - The gpios will be referred to as reg = in the SPI child nodes. - If unspecified, a single SPI device without a chip select can be used. -- fsl,spisel_boot : for the MPC8306 and MPC8309, specifies that the - SPISEL_BOOT signal is used as chip select for a slave device. Use - reg = in the corresponding child node, i.e. 0 if - the cs-gpios property is not present. - -Example: - spi@4c0 { - cell-index = <0>; - compatible = "fsl,spi"; - reg = <4c0 40>; - interrupts = <82 0>; - interrupt-parent = <700>; - mode = "cpu"; - cs-gpios = <&gpio 18 1 // device reg=<0> - &gpio 19 1>; // device reg=<1> - }; - - -* eSPI (Enhanced Serial Peripheral Interface) - -Required properties: -- compatible : should be "fsl,mpc8536-espi". -- reg : Offset and length of the register set for the device. -- interrupts : should contain eSPI interrupt, the device has one interrupt. -- fsl,espi-num-chipselects : the number of the chipselect signals. - -Optional properties: -- fsl,csbef: chip select assertion time in bits before frame starts -- fsl,csaft: chip select negation time in bits after frame ends - -Example: - spi@110000 { - #address-cells = <1>; - #size-cells = <0>; - compatible = "fsl,mpc8536-espi"; - reg = <0x110000 0x1000>; - interrupts = <53 0x2>; - interrupt-parent = <&mpic>; - fsl,espi-num-chipselects = <4>; - fsl,csbef = <1>; - fsl,csaft = <1>; - }; -- 2.50.1