dt-bindings: nand: meson: convert txt to yaml

convert the amlogic,meson-name.txt to amlogic,meson-nand.yaml

Signed-off-by: Liang Yang <liang.yang@amlogic.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Link: https://lore.kernel.org/linux-mtd/20220907080405.28240-5-liang.yang@amlogic.com

Documentation/devicetree/bindings/mtd/amlogic,meson-nand.txt

@@ -1,55 +0,0 @@
-Amlogic NAND Flash Controller (NFC) for GXBB/GXL/AXG family SoCs
-
-This file documents the properties in addition to those available in
-the MTD NAND bindings.
-
-Required properties:
-- compatible : contains one of:
-  - "amlogic,meson-gxl-nfc"
-  - "amlogic,meson-axg-nfc"
-
-- reg        : Offset and length of the register set
-
-- reg-names  : "nfc" is the register set for NFC controller and "emmc"
-		is the register set for MCI controller.
-
-- clocks     :
-	A list of phandle + clock-specifier pairs for the clocks listed
-	in clock-names.
-
-- clock-names: Should contain the following:
-	"core" - NFC module gate clock
-	"device" - parent clock for internal NFC
-
-Optional children nodes:
-Children nodes represent the available nand chips.
-
-Other properties:
-see Documentation/devicetree/bindings/mtd/nand-controller.yaml for generic bindings.
-
-Example demonstrate on AXG SoC:
-
-	nand-controller@7800 {
-		compatible = "amlogic,meson-axg-nfc";
-		reg = <0x0 0x7800 0x0 0x100>,
-		      <0x0 0x7000 0x0 0x800>;
-		reg-names = "nfc", "emmc";
-		#address-cells = <1>;
-		#size-cells = <0>;
-		interrupts = <GIC_SPI 34 IRQ_TYPE_EDGE_RISING>;
-
-		clocks = <&clkc CLKID_SD_EMMC_C>,
-			 <&clkc CLKID_FCLK_DIV2>;
-		clock-names = "core", "device";
-
-		pinctrl-names = "default";
-		pinctrl-0 = <&nand_pins>;
-
-		nand@0 {
-			reg = <0>;
-			#address-cells = <1>;
-			#size-cells = <1>;
-
-			nand-on-flash-bbt;
-		};
-	};

Documentation/devicetree/bindings/mtd/amlogic,meson-nand.yaml

@@ -0,0 +1,93 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/mtd/amlogic,meson-nand.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Amlogic NAND Flash Controller (NFC) for GXBB/GXL/AXG family SoCs
+
+allOf:
+  - $ref: nand-controller.yaml
+
+maintainers:
+  - liang.yang@amlogic.com
+
+properties:
+  compatible:
+    enum:
+      - amlogic,meson-gxl-nfc
+      - amlogic,meson-axg-nfc
+
+  reg:
+    maxItems: 2
+
+  reg-names:
+    items:
+      - const: nfc
+      - const: emmc
+
+  interrupts:
+    maxItems: 1
+
+  clocks:
+    minItems: 2
+
+  clock-names:
+    items:
+      - const: core
+      - const: device
+
+patternProperties:
+  "^nand@[0-7]$":
+    type: object
+    properties:
+      reg:
+        minimum: 0
+        maximum: 1
+
+      nand-ecc-mode:
+        const: hw
+
+      nand-ecc-step-size:
+        const: 1024
+
+      nand-ecc-strength:
+        enum: [8, 16, 24, 30, 40, 50, 60]
+        description: |
+          The ECC configurations that can be supported are as follows.
+            meson-gxl-nfc 8, 16, 24, 30, 40, 50, 60
+            meson-axg-nfc 8
+
+required:
+  - compatible
+  - reg
+  - interrupts
+  - clocks
+  - clock-names
+
+unevaluatedProperties: false
+
+examples:
+  - |
+    #include <dt-bindings/clock/axg-clkc.h>
+    #include <dt-bindings/interrupt-controller/arm-gic.h>
+    nand-controller@ffe07800 {
+      compatible = "amlogic,meson-axg-nfc";
+      reg = <0xffe07800 0x100>, <0xffe07000 0x800>;
+      reg-names = "nfc", "emmc";
+      interrupts = <GIC_SPI 34 IRQ_TYPE_EDGE_RISING>;
+      clocks = <&clkc CLKID_SD_EMMC_C>,  <&clkc CLKID_FCLK_DIV2>;
+      clock-names = "core", "device";
+
+      pinctrl-0 = <&nand_pins>;
+      pinctrl-names = "default";
+
+      #address-cells = <1>;
+      #size-cells = <0>;
+
+      nand@0 {
+        reg = <0>;
+      };
+    };
+
+...