dt-bindings: mmc: convert synopsys dw-mshc bindings to yaml

Current dts files with 'dwmmc' nodes are manually verified.
In order to automate this process synopsys-dw-mshc.txt
has to be converted to yaml. In the new setup
synopsys-dw-mshc.yaml will inherit properties from
mmc-controller.yaml and synopsys-dw-mshc-common.yaml.
'dwmmc' will no longer be a valid name for a node and
should be changed to 'mmc'.

Signed-off-by: Johan Jonker <[email protected]>
Reviewed-by: Rob Herring <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Ulf Hansson <[email protected]>

Author: Johan Jonker

Documentation/devicetree/bindings/mmc/synopsys-dw-mshc-common.yaml

@@ -0,0 +1,68 @@
+# SPDX-License-Identifier: GPL-2.0
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/mmc/synopsys-dw-mshc-common.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Synopsys Designware Mobile Storage Host Controller Common Properties
+
+allOf:
+  - $ref: "mmc-controller.yaml#"
+
+maintainers:
+  - Ulf Hansson <[email protected]>
+
+# Everything else is described in the common file
+properties:
+  resets:
+    maxItems: 1
+
+  reset-names:
+    const: reset
+
+  clock-frequency:
+    description:
+      Should be the frequency (in Hz) of the ciu clock.  If this
+      is specified and the ciu clock is specified then we'll try to set the ciu
+      clock to this at probe time.
+
+  fifo-depth:
+    allOf:
+      - $ref: /schemas/types.yaml#/definitions/uint32
+    description:
+      The maximum size of the tx/rx fifo's. If this property is not
+      specified, the default value of the fifo size is determined from the
+      controller registers.
+
+  card-detect-delay:
+    allOf:
+      - $ref: /schemas/types.yaml#/definitions/uint32
+      - default: 0
+    description:
+      Delay in milli-seconds before detecting card after card
+      insert event. The default value is 0.
+
+  data-addr:
+    allOf:
+      - $ref: /schemas/types.yaml#/definitions/uint32
+    description:
+      Override fifo address with value provided by DT. The default FIFO reg
+      offset is assumed as 0x100 (version < 0x240A) and 0x200(version >= 0x240A)
+      by driver. If the controller does not follow this rule, please use
+      this property to set fifo address in device tree.
+
+  fifo-watermark-aligned:
+    allOf:
+      - $ref: /schemas/types.yaml#/definitions/flag
+    description:
+      Data done irq is expected if data length is less than
+      watermark in PIO mode. But fifo watermark is requested to be aligned
+      with data length in some SoC so that TX/RX irq can be generated with
+      data done irq. Add this watermark quirk to mark this requirement and
+      force fifo watermark setting accordingly.
+
+  dmas:
+    maxItems: 1
+
+  dma-names:
+    const: rx-tx

Documentation/devicetree/bindings/mmc/synopsys-dw-mshc.txt

@@ -0,0 +1,70 @@
+# SPDX-License-Identifier: GPL-2.0
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/mmc/synopsys-dw-mshc.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Synopsys Designware Mobile Storage Host Controller Binding
+
+allOf:
+  - $ref: "synopsys-dw-mshc-common.yaml#"
+
+maintainers:
+  - Ulf Hansson <[email protected]>
+
+# Everything else is described in the common file
+properties:
+  compatible:
+    const: snps,dw-mshc
+
+  reg:
+    maxItems: 1
+
+  interrupts:
+    maxItems: 1
+
+  clocks:
+    minItems: 2
+    maxItems: 2
+    description:
+      Handle to "biu" and "ciu" clocks for the
+      bus interface unit clock and the card interface unit clock.
+
+  clock-names:
+    items:
+      - const: biu
+      - const: ciu
+
+required:
+  - compatible
+  - reg
+  - interrupts
+  - clocks
+  - clock-names
+
+examples:
+  - |
+    mmc@12200000 {
+      compatible = "snps,dw-mshc";
+      reg = <0x12200000 0x1000>;
+      interrupts = <0 75 0>;
+      clocks = <&clock 351>, <&clock 132>;
+      clock-names = "biu", "ciu";
+      dmas = <&pdma 12>;
+      dma-names = "rx-tx";
+      resets = <&rst 20>;
+      reset-names = "reset";
+      vmmc-supply = <&buck8>;
+      #address-cells = <1>;
+      #size-cells = <0>;
+      broken-cd;
+      bus-width = <8>;
+      cap-mmc-highspeed;
+      cap-sd-highspeed;
+      card-detect-delay = <200>;
+      clock-freq-min-max = <400000 200000000>;
+      clock-frequency = <400000000>;
+      data-addr = <0x200>;
+      fifo-depth = <0x80>;
+      fifo-watermark-aligned;
+    };