dt-bindings: fpga: altera: Convert bridge bindings to yaml

Convert Altera's bridges to yaml with using fpga-bridge.yaml.

Signed-off-by: Michal Simek <michal.simek@amd.com>
Reviewed-by: Xu Yilun <yilun.xu@intel.com>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Link: https://lore.kernel.org/r/07d646a6d82cc21b100e45ced7cae3ef05faa2cc.1704807147.git.michal.simek@amd.com
Signed-off-by: Rob Herring <robh@kernel.org>

Author: michalsimek

Documentation/devicetree/bindings/fpga/altera-fpga2sdram-bridge.txt

@@ -0,0 +1,41 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/fpga/altr,freeze-bridge-controller.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Altera Freeze Bridge Controller
+
+description:
+  The Altera Freeze Bridge Controller manages one or more freeze bridges.
+  The controller can freeze/disable the bridges which prevents signal
+  changes from passing through the bridge. The controller can also
+  unfreeze/enable the bridges which allows traffic to pass through the bridge
+  normally.
+
+maintainers:
+  - Xu Yilun <yilun.xu@intel.com>
+
+allOf:
+  - $ref: fpga-bridge.yaml#
+
+properties:
+  compatible:
+    const: altr,freeze-bridge-controller
+
+  reg:
+    maxItems: 1
+
+required:
+  - compatible
+  - reg
+
+unevaluatedProperties: false
+
+examples:
+  - |
+    fpga-bridge@100000450 {
+        compatible = "altr,freeze-bridge-controller";
+        reg = <0x1000 0x10>;
+        bridge-enable = <0>;
+    };

Documentation/devicetree/bindings/fpga/altera-freeze-bridge.txt

@@ -0,0 +1,33 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/fpga/altr,socfpga-fpga2sdram-bridge.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Altera FPGA To SDRAM Bridge
+
+maintainers:
+  - Xu Yilun <yilun.xu@intel.com>
+
+allOf:
+  - $ref: fpga-bridge.yaml#
+
+properties:
+  compatible:
+    const: altr,socfpga-fpga2sdram-bridge
+
+  reg:
+    maxItems: 1
+
+required:
+  - compatible
+
+unevaluatedProperties: false
+
+examples:
+  - |
+    fpga-bridge@ffc25080 {
+        compatible = "altr,socfpga-fpga2sdram-bridge";
+        reg = <0xffc25080 0x4>;
+        bridge-enable = <0>;
+    };

Documentation/devicetree/bindings/fpga/altera-hps2fpga-bridge.txt

@@ -0,0 +1,49 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/fpga/altr,socfpga-hps2fpga-bridge.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Altera FPGA/HPS Bridge
+
+maintainers:
+  - Xu Yilun <yilun.xu@intel.com>
+
+allOf:
+  - $ref: fpga-bridge.yaml#
+
+properties:
+  compatible:
+    enum:
+      - altr,socfpga-lwhps2fpga-bridge
+      - altr,socfpga-hps2fpga-bridge
+      - altr,socfpga-fpga2hps-bridge
+
+  reg:
+    maxItems: 1
+
+  resets:
+    maxItems: 1
+
+  clocks:
+    maxItems: 1
+
+required:
+  - compatible
+  - reg
+  - clocks
+  - resets
+
+unevaluatedProperties: false
+
+examples:
+  - |
+    #include <dt-bindings/reset/altr,rst-mgr.h>
+
+    fpga-bridge@ff400000 {
+      compatible = "altr,socfpga-lwhps2fpga-bridge";
+      reg = <0xff400000 0x100000>;
+      bridge-enable = <0>;
+      clocks = <&l4_main_clk>;
+      resets = <&rst LWHPS2FPGA_RESET>;
+    };