dt-bindings: mmc: socionext,milbeaut-m10v-sdhci-3.0: convert to DT schema

Convert SOCIONEXT Milbeaut SDHCI controller binding to YAML format.
Add a new property "voltage-ranges" to resolve dt_check errors.

Signed-off-by: Charan Pedumuru <charan.pedumuru@gmail.com>
Reviewed-by: Rob Herring (Arm) <robh@kernel.org>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>

Author: Charan-Pedumuru

Documentation/devicetree/bindings/mmc/sdhci-milbeaut.txt

@@ -0,0 +1,79 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/mmc/socionext,milbeaut-m10v-sdhci-3.0.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: SOCIONEXT Milbeaut SDHCI controller
+
+maintainers:
+  - Taichi Sugaya <sugaya.taichi@socionext.com>
+  - Takao Orito <orito.takao@socionext.com>
+
+description:
+  The SOCIONEXT Milbeaut SDHCI controller is a specialized SD Host
+  Controller found in some of Socionext's Milbeaut image processing SoCs.
+  It features a dedicated "bridge controller." This bridge controller
+  implements special functions like reset control, clock management for
+  various SDR modes (SDR12, SDR25, SDR50) and physical pin property settings.
+
+allOf:
+  - $ref: sdhci-common.yaml#
+
+properties:
+  compatible:
+    const: socionext,milbeaut-m10v-sdhci-3.0
+
+  reg:
+    maxItems: 1
+
+  interrupts:
+    maxItems: 1
+
+  clocks:
+    maxItems: 2
+
+  clock-names:
+    items:
+      - const: core
+      - const: iface
+
+  fujitsu,cmd-dat-delay-select:
+    description:
+      Its presence indicates that the controller requires a specific command
+      and data line delay selection mechanism for proper operation, particularly
+      when dealing with high-speed SD/eMMC modes.
+    type: boolean
+
+  voltage-ranges:
+    $ref: /schemas/types.yaml#/definitions/uint32-matrix
+    items:
+      items:
+        - description: minimum slot voltage (mV).
+        - description: maximum slot voltage (mV).
+    maxItems: 1
+
+required:
+  - compatible
+  - reg
+  - interrupts
+  - clocks
+  - clock-names
+
+unevaluatedProperties: false
+
+examples:
+  - |
+    #include <dt-bindings/interrupt-controller/arm-gic.h>
+    mmc@1b010000 {
+        compatible = "socionext,milbeaut-m10v-sdhci-3.0";
+        reg = <0x1b010000 0x10000>;
+        interrupts = <GIC_SPI 265 IRQ_TYPE_LEVEL_HIGH>;
+        voltage-ranges = <3300 3300>;
+        bus-width = <4>;
+        clocks = <&clk 7>, <&ahb_clk>;
+        clock-names = "core", "iface";
+        cap-sdio-irq;
+        fujitsu,cmd-dat-delay-select;
+    };
+...