dt-bindings: mmc: Convert jz4740-mmc doc to YAML

Convert the jz4740-mmc.txt documentation to YAML.

The ingenic,jz4770-mmc compatible string was added in the process, with
a fallback to ingenic,jz4760-mmc.
Signed-off-by: Paul Cercueil <paul@crapouillou.net>
Signed-off-by: Rob Herring <robh@kernel.org>

Documentation/devicetree/bindings/mmc/ingenic,mmc.yaml

+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/mmc/ingenic,mmc.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Ingenic SoCs MMC Controller DT bindings
+
+maintainers:
+  - Paul Cercueil <paul@crapouillou.net>
+
+allOf:
+  - $ref: mmc-controller.yaml#
+
+properties:
+  compatible:
+    oneOf:
+      - enum:
+        - ingenic,jz4740-mmc
+        - ingenic,jz4725b-mmc
+        - ingenic,jz4760-mmc
+        - ingenic,jz4780-mmc
+        - ingenic,x1000-mmc
+      - items:
+        - const: ingenic,jz4770-mmc
+        - const: ingenic,jz4760-mmc
+
+  reg:
+    maxItems: 1
+
+  interrupts:
+    maxItems: 1
+
+  clocks:
+    maxItems: 1
+
+  clock-names:
+    const: mmc
+
+  dmas:
+    items:
+      - description: DMA controller phandle and request line for RX
+      - description: DMA controller phandle and request line for TX
+
+  dma-names:
+    items:
+      - const: rx
+      - const: tx
+
+required:
+  - compatible
+  - reg
+  - interrupts
+  - clocks
+  - clock-names
+  - dmas
+  - dma-names
+
+examples:
+  - |
+    #include <dt-bindings/clock/jz4780-cgu.h>
+    #include <dt-bindings/dma/jz4780-dma.h>
+    mmc0: mmc@13450000 {
+      compatible = "ingenic,jz4780-mmc";
+      reg = <0x13450000 0x1000>;
+
+      interrupt-parent = <&intc>;
+      interrupts = <37>;
+
+      clocks = <&cgu JZ4780_CLK_MSC0>;
+      clock-names = "mmc";
+
+      cap-sd-highspeed;
+      cap-mmc-highspeed;
+      cap-sdio-irq;
+      dmas = <&dma JZ4780_DMA_MSC0_RX 0xffffffff>,
+             <&dma JZ4780_DMA_MSC0_TX 0xffffffff>;
+      dma-names = "rx", "tx";
+    };

Documentation/devicetree/bindings/mmc/jz4740.txt

-* Ingenic XBurst MMC controllers
-
-This file documents the device tree properties used for the MMC controller in
-Ingenic JZ4740/JZ4760/JZ4780/X1000 SoCs. These are in addition to the core MMC
-properties described in mmc.txt.
-
-Required properties:
-- compatible: Should be one of the following:
-  - "ingenic,jz4740-mmc" for the JZ4740
-  - "ingenic,jz4725b-mmc" for the JZ4725B
-  - "ingenic,jz4760-mmc" for the JZ4760
-  - "ingenic,jz4780-mmc" for the JZ4780
-  - "ingenic,x1000-mmc" for the X1000
-- reg: Should contain the MMC controller registers location and length.
-- interrupts: Should contain the interrupt specifier of the MMC controller.
-- clocks: Clock for the MMC controller.
-
-Optional properties:
-- dmas: List of DMA specifiers with the controller specific format
-        as described in the generic DMA client binding. A tx and rx
-        specifier is required.
-- dma-names: RX and TX  DMA request names.
-        Should be "rx" and "tx", in that order.
-
-For additional details on DMA client bindings see ../dma/dma.txt.
-
-Example:
-
-mmc0: mmc@13450000 {
-	compatible = "ingenic,jz4780-mmc";
-	reg = <0x13450000 0x1000>;
-
-	interrupt-parent = <&intc>;
-	interrupts = <37>;
-
-	clocks = <&cgu JZ4780_CLK_MSC0>;
-	clock-names = "mmc";
-
-	dmas = <&dma JZ4780_DMA_MSC0_RX 0xffffffff>, <&dma JZ4780_DMA_MSC0_TX 0xffffffff>;
-	dma-names = "rx", "tx";
-};