spi: dt-bindings: Convert Freescale SPI bindings to YAML

fsl-spi.txt contains the bindings for the fsl,spi and fsl,espi
contollers. Convert them to YAML.

Reviewed-by: "Rob Herring (Arm)" <[email protected]>
Signed-off-by: J. Neuschäfer <[email protected]>
Link: https://patch.msgid.link/[email protected]
Signed-off-by: Mark Brown <[email protected]>

Author: neuschaefer

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 <[email protected]>
+
+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 <dt-bindings/interrupt-controller/irq.h>
+
+    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>;
+    };
+
+...

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 <[email protected]>
+
+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 = <number of gpios> 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 <dt-bindings/interrupt-controller/irq.h>
+
+    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>
+    };
+
+...