Merge tag 'devicetree-fixes-for-5.13-1' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux

Pull devicetree fixes from Rob Herring:

- Several Renesas binding fixes to fix warnings

- Remove duplicate compatibles in 8250 binding

- Remove orphaned Sigma Designs Tango bindings

- Fix bcm2711-hdmi binding to use 'additionalProperties'

- Fix idt,32434-pic warning for missing 'interrupts' property

- Fix 'stored but not read' warnings in DT overlay code

* tag 'devicetree-fixes-for-5.13-1' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux:
dt-bindings: net: renesas,etheravb: Fix optional second clock name
dt-bindings: display: renesas,du: Add missing power-domains property
dt-bindings: media: renesas,vin: Make resets optional on R-Car Gen1
dt-bindings: PCI: rcar-pci-host: Document missing R-Car H1 support
of: overlay: Remove redundant assignment to ret
dt-bindings: serial: 8250: Remove duplicated compatible strings
dt-bindings: Remove unused Sigma Designs Tango bindings
dt-bindings: bcm2711-hdmi: Fix broken schema
dt-bindings: interrupt-controller: idt,32434-pic: Add missing interrupts property

Documentation/devicetree/bindings/display/brcm,bcm2711-hdmi.yaml

···
   - resets
   - ddc
 
-unevaluatedProperties: false
+additionalProperties: false
 
 examples:
   - |

Documentation/devicetree/bindings/display/renesas,du.yaml

···
   resets: true
   reset-names: true
 
+  power-domains:
+    maxItems: 1
+
   ports:
     $ref: /schemas/graph.yaml#/properties/port
     description: |

Documentation/devicetree/bindings/interrupt-controller/idt,32434-pic.yaml

···
   reg:
     maxItems: 1
 
+  interrupts:
+    maxItems: 1
+
   interrupt-controller: true
 
 required:
···
   - compatible
   - reg
   - interrupt-controller
+  - interrupts
 
 additionalProperties: false
 

Documentation/devicetree/bindings/media/renesas,vin.yaml

···
   - interrupts
   - clocks
   - power-domains
-  - resets
 
-if:
-  properties:
-    compatible:
-      contains:
-        enum:
-          - renesas,vin-r8a7778
-          - renesas,vin-r8a7779
-          - renesas,rcar-gen2-vin
-then:
-  required:
-    - port
-else:
-  required:
-    - renesas,id
-    - ports
+allOf:
+  - if:
+      not:
+        properties:
+          compatible:
+            contains:
+              enum:
+                - renesas,vin-r8a7778
+                - renesas,vin-r8a7779
+    then:
+      required:
+        - resets
+
+  - if:
+      properties:
+        compatible:
+          contains:
+            enum:
+              - renesas,vin-r8a7778
+              - renesas,vin-r8a7779
+              - renesas,rcar-gen2-vin
+    then:
+      required:
+        - port
+    else:
+      required:
+        - renesas,id
+        - ports
 
 additionalProperties: false
 

Documentation/devicetree/bindings/mtd/tango-nand.txt

···
-Sigma Designs Tango4 NAND Flash Controller (NFC)
-
-Required properties:
-
-- compatible: "sigma,smp8758-nand"
-- reg: address/size of nfc_reg, nfc_mem, and pbus_reg
-- dmas: reference to the DMA channel used by the controller
-- dma-names: "rxtx"
-- clocks: reference to the system clock
-- #address-cells: <1>
-- #size-cells: <0>
-
-Children nodes represent the available NAND chips.
-See Documentation/devicetree/bindings/mtd/nand-controller.yaml for generic bindings.
-
-Example:
-
-	nandc: nand-controller@2c000 {
-		compatible = "sigma,smp8758-nand";
-		reg = <0x2c000 0x30>, <0x2d000 0x800>, <0x20000 0x1000>;
-		dmas = <&dma0 3>;
-		dma-names = "rxtx";
-		clocks = <&clkgen SYS_CLK>;
-		#address-cells = <1>;
-		#size-cells = <0>;
-
-		nand@0 {
-			reg = <0>; /* CS0 */
-			nand-ecc-strength = <14>;
-			nand-ecc-step-size = <1024>;
-		};
-
-		nand@1 {
-			reg = <1>; /* CS1 */
-			nand-ecc-strength = <14>;
-			nand-ecc-step-size = <1024>;
-		};
-	};

Documentation/devicetree/bindings/net/renesas,etheravb.yaml

···
 
   clocks:
     minItems: 1
-    maxItems: 2
     items:
       - description: AVB functional clock
       - description: Optional TXC reference clock
 
   clock-names:
+    minItems: 1
     items:
       - const: fck
       - const: refclk

Documentation/devicetree/bindings/pci/rcar-pci-host.yaml

···
 properties:
   compatible:
     oneOf:
+      - const: renesas,pcie-r8a7779       # R-Car H1
       - items:
           - enum:
               - renesas,pcie-r8a7742      # RZ/G1H
···
   - clocks
   - clock-names
   - power-domains
-  - resets
+
+if:
+  not:
+    properties:
+      compatible:
+        contains:
+          const: renesas,pcie-r8a7779
+then:
+  required:
+    - resets
 
 unevaluatedProperties: false
 

Documentation/devicetree/bindings/pci/tango-pcie.txt

···
-Sigma Designs Tango PCIe controller
-
-Required properties:
-
-- compatible: "sigma,smp8759-pcie"
-- reg: address/size of PCI configuration space, address/size of register area
-- bus-range: defined by size of PCI configuration space
-- device_type: "pci"
-- #size-cells: <2>
-- #address-cells: <3>
-- msi-controller
-- ranges: translation from system to bus addresses
-- interrupts: spec for misc interrupts, spec for MSI
-
-Example:
-
-	pcie@2e000 {
-		compatible = "sigma,smp8759-pcie";
-		reg = <0x50000000 0x400000>, <0x2e000 0x100>;
-		bus-range = <0 3>;
-		device_type = "pci";
-		#size-cells = <2>;
-		#address-cells = <3>;
-		msi-controller;
-		ranges = <0x02000000 0x0 0x00400000  0x50400000  0x0 0x3c00000>;
-		interrupts =
-			<54 IRQ_TYPE_LEVEL_HIGH>, /* misc interrupts */
-			<55 IRQ_TYPE_LEVEL_HIGH>; /* MSI */
-	};

Documentation/devicetree/bindings/serial/8250.yaml

···
               - mediatek,mt7623-btif
           - const: mediatek,mtk-btif
       - items:
-          - enum:
-              - mediatek,mt7622-btif
-              - mediatek,mt7623-btif
-          - const: mediatek,mtk-btif
-      - items:
           - const: mrvl,mmp-uart
           - const: intel,xscale-uart
       - items:

drivers/of/overlay.c

···
 	struct device_node *overlay_root = NULL;
 
 	*ovcs_id = 0;
-	ret = 0;
 
 	if (overlay_fdt_size < sizeof(struct fdt_header) ||
 	    fdt_check_header(overlay_fdt)) {
···
 {
 	struct overlay_changeset *ovcs;
 	int ret, ret_apply, ret_tmp;
-
-	ret = 0;
 
 	if (devicetree_corrupt()) {
 		pr_err("suspect devicetree state, refuse to remove overlay\n");