dt-bindings: convert ata/cortina,gemini-sata-bridge to yaml

This patch converts ata/cortina,gemini-sata-bridge binding to yaml
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Acked-by: Damien Le Moal <damien.lemoal@opensource.wdc.com>
Signed-off-by: Corentin Labbe <clabbe@baylibre.com>
Signed-off-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20220211120157.3385145-1-clabbe@baylibre.com

Documentation/devicetree/bindings/ata/cortina,gemini-sata-bridge.txt

-* Cortina Systems Gemini SATA Bridge
-
-The Gemini SATA bridge in a SoC-internal PATA to SATA bridge that
-takes two Faraday Technology FTIDE010 PATA controllers and bridges
-them in different configurations to two SATA ports.
-
-Required properties:
-- compatible: should be
-  "cortina,gemini-sata-bridge"
-- reg: registers and size for the block
-- resets: phandles to the reset lines for both SATA bridges
-- reset-names: must be "sata0", "sata1"
-- clocks: phandles to the compulsory peripheral clocks
-- clock-names: must be "SATA0_PCLK", "SATA1_PCLK"
-- syscon: a phandle to the global Gemini system controller
-- cortina,gemini-ata-muxmode: tell the desired multiplexing mode for
-  the ATA controller and SATA bridges. Values 0..3:
-  Mode 0: ata0 master <-> sata0
-          ata1 master <-> sata1
-          ata0 slave interface brought out on IDE pads
-  Mode 1: ata0 master <-> sata0
-          ata1 master <-> sata1
-          ata1 slave interface brought out on IDE pads
-  Mode 2: ata1 master <-> sata1
-          ata1 slave  <-> sata0
-          ata0 master and slave interfaces brought out
-               on IDE pads
-  Mode 3: ata0 master <-> sata0
-          ata0 slave  <-> sata1
-          ata1 master and slave interfaces brought out
-               on IDE pads
-
-Optional boolean properties:
-- cortina,gemini-enable-ide-pins: enables the PATA to IDE connection.
-  The muxmode setting decides whether ATA0 or ATA1 is brought out,
-  and whether master, slave or both interfaces get brought out.
-- cortina,gemini-enable-sata-bridge: enables the PATA to SATA bridge
-  inside the Gemnini SoC. The Muxmode decides what PATA blocks will
-  be muxed out and how.
-
-Example:
-
-sata: sata@46000000 {
-	compatible = "cortina,gemini-sata-bridge";
-	reg = <0x46000000 0x100>;
-	resets = <&rcon 26>, <&rcon 27>;
-	reset-names = "sata0", "sata1";
-	clocks = <&gcc GEMINI_CLK_GATE_SATA0>,
-		 <&gcc GEMINI_CLK_GATE_SATA1>;
-	clock-names = "SATA0_PCLK", "SATA1_PCLK";
-	syscon = <&syscon>;
-	cortina,gemini-ata-muxmode = <3>;
-	cortina,gemini-enable-ide-pins;
-	cortina,gemini-enable-sata-bridge;
-};

Documentation/devicetree/bindings/ata/cortina,gemini-sata-bridge.yaml

+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/ata/cortina,gemini-sata-bridge.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Cortina Systems Gemini SATA Bridge
+
+maintainers:
+  - Linus Walleij <linus.walleij@linaro.org>
+
+description: |
+    The Gemini SATA bridge in a SoC-internal PATA to SATA bridge that
+    takes two Faraday Technology FTIDE010 PATA controllers and bridges
+    them in different configurations to two SATA ports.
+
+properties:
+  compatible:
+    const: cortina,gemini-sata-bridge
+
+  reg:
+    maxItems: 1
+
+  resets:
+    minItems: 2
+    maxItems: 2
+    description: phandles to the reset lines for both SATA bridges
+
+  reset-names:
+    items:
+      - const: sata0
+      - const: sata1
+
+  clocks:
+    minItems: 2
+    maxItems: 2
+    description: phandles to the compulsory peripheral clocks
+
+  clock-names:
+    items:
+      - const: SATA0_PCLK
+      - const: SATA1_PCLK
+
+  syscon:
+    $ref: /schemas/types.yaml#/definitions/phandle
+    description: a phandle to the global Gemini system controller
+
+  cortina,gemini-ata-muxmode:
+    $ref: /schemas/types.yaml#/definitions/uint32
+    enum:
+      - 0
+      - 1
+      - 2
+      - 3
+    description: |
+      Tell the desired multiplexing mode for the ATA controller and SATA
+      bridges.
+      Mode 0: ata0 master <-> sata0
+              ata1 master <-> sata1
+              ata0 slave interface brought out on IDE pads
+      Mode 1: ata0 master <-> sata0
+              ata1 master <-> sata1
+              ata1 slave interface brought out on IDE pads
+      Mode 2: ata1 master <-> sata1
+              ata1 slave  <-> sata0
+              ata0 master and slave interfaces brought out on IDE pads
+      Mode 3: ata0 master <-> sata0
+              ata0 slave  <-> sata1
+              ata1 master and slave interfaces brought out on IDE pads
+
+  cortina,gemini-enable-ide-pins:
+    type: boolean
+    description: Enables the PATA to IDE connection.
+      The muxmode setting decides whether ATA0 or ATA1 is brought out,
+      and whether master, slave or both interfaces get brought out.
+
+  cortina,gemini-enable-sata-bridge:
+    type: boolean
+    description: Enables the PATA to SATA bridge inside the Gemnini SoC.
+      The Muxmode decides what PATA blocks will be muxed out and how.
+
+required:
+  - clocks
+  - clock-names
+  - cortina,gemini-ata-muxmode
+  - resets
+  - reset-names
+  - compatible
+  - reg
+  - syscon
+
+additionalProperties: false
+
+examples:
+  - |
+    #include <dt-bindings/clock/cortina,gemini-clock.h>
+    sata@46000000 {
+      compatible = "cortina,gemini-sata-bridge";
+      reg = <0x46000000 0x100>;
+      resets = <&rcon 26>, <&rcon 27>;
+      reset-names = "sata0", "sata1";
+      clocks = <&gcc GEMINI_CLK_GATE_SATA0>,
+               <&gcc GEMINI_CLK_GATE_SATA1>;
+      clock-names = "SATA0_PCLK", "SATA1_PCLK";
+      syscon = <&syscon>;
+      cortina,gemini-ata-muxmode = <3>;
+      cortina,gemini-enable-ide-pins;
+      cortina,gemini-enable-sata-bridge;
+    };