Merge tag 'devicetree-for-5.18' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux

Pull devicetree updates from Rob Herring:

 - Add Krzysztof Kozlowski as co-maintainer for DT bindings providing
   much needed help.

 - DT schema validation now takes DTB files as input rather than
   intermediate YAML files. This decouples the validation from the
   source level syntax information. There's a bunch of schema fixes as a
   result of switching to DTB based validation which exposed some errors
   and incomplete schemas and examples.

 - Kbuild improvements to explicitly warn users running 'make
   dt_binding_check' on missing yamllint

 - Expand DT_SCHEMA_FILES kbuild variable to take just a partial
   filename or path instead of the full path to 1 file.

 - Convert various bindings to schema format: mscc,vsc7514-switch,
   multiple GNSS bindings, ahci-platform, i2c-at91, multiple UFS
   bindings, cortina,gemini-sata-bridge, cortina,gemini-ethernet, Atmel
   SHA, Atmel TDES, Atmel AES, armv7m-systick, Samsung Exynos display
   subsystem, nuvoton,npcm7xx-timer, samsung,s3c2410-i2c, zynqmp_dma,
   msm/mdp4, rda,8810pl-uart

 - New schemas for u-boot environment variable partition, TI clksel

 - New compatible strings for Renesas RZ/V2L SoC

 - Vendor prefixes for Xen, HPE, deprecated Synopsys, deprecated
   HiSilicon

 - Add/fix schemas for QEMU Arm 'virt' machine

 - Drop unused of_alias_get_alias_list() function

 - Add a script to check DT unittest EXPECT message output. Pass
   messages also now print by default at PR_INFO level to help test
   automation.

* tag 'devicetree-for-5.18' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux: (96 commits)
  dt-bindings: kbuild: Make DT_SCHEMA_LINT a recursive variable
  dt-bindings: nvmem: add U-Boot environment variables binding
  dt-bindings: ufs: qcom: Add SM6350 compatible string
  dt-bindings: dmaengine: sifive,fu540-c000: include generic schema
  dt-bindings: gpio: pca95xx: drop useless consumer example
  Revert "of: base: Introduce of_alias_get_alias_list() to check alias IDs"
  dt-bindings: virtio,mmio: Allow setting devices 'dma-coherent'
  dt-bindings: gnss: Add two more chips
  dt-bindings: gnss: Rewrite sirfstar binding in YAML
  dt-bindings: gnss: Modify u-blox to use common bindings
  dt-bindings: gnss: Rewrite common bindings in YAML
  dt-bindings: ata: ahci-platform: Add rk3568-dwc-ahci compatible
  dt-bindings: ata: ahci-platform: Add power-domains property
  dt-bindings: ata: ahci-platform: Convert DT bindings to yaml
  dt-bindings: kbuild: Use DTB files for validation
  dt-bindings: kbuild: Pass DT_SCHEMA_FILES to dt-validate
  dt-bindings: Add QEMU virt machine compatible
  dt-bindings: arm: Convert QEMU fw-cfg to DT schema
  dt-bindings: i2c: at91: Add SAMA7G5 compatible strings list
  dt-bindings: i2c: convert i2c-at91 to json-schema
  ...

5 files changed, 93 insertions, 30 deletions

diff --git a/Documentation/devicetree/bindings/dma/dma-router.yaml b/Documentation/devicetree/bindings/dma/dma-router.yaml
index e72748496fd9..4b817f5dc30e 100644
--- a/Documentation/devicetree/bindings/dma/dma-router.yaml
+++ b/Documentation/devicetree/bindings/dma/dma-router.yaml
@@ -24,6 +24,8 @@ properties:
 
   dma-masters:
     $ref: /schemas/types.yaml#/definitions/phandle-array
+    items:
+      maxItems: 1
     description:
       Array of phandles to the DMA controllers the router can direct
       the signal to.
diff --git a/Documentation/devicetree/bindings/dma/sifive,fu540-c000-pdma.yaml b/Documentation/devicetree/bindings/dma/sifive,fu540-c000-pdma.yaml
index 75ad898c59bc..47c46af25536 100644
--- a/Documentation/devicetree/bindings/dma/sifive,fu540-c000-pdma.yaml
+++ b/Documentation/devicetree/bindings/dma/sifive,fu540-c000-pdma.yaml
@@ -22,6 +22,9 @@ description: |
 
   https://static.dev.sifive.com/FU540-C000-v1.0.pdf
 
+allOf:
+  - $ref: "dma-controller.yaml#"
+
 properties:
   compatible:
     items:
@@ -41,13 +44,12 @@ required:
   - compatible
   - reg
   - interrupts
-  - '#dma-cells'
 
-additionalProperties: false
+unevaluatedProperties: false
 
 examples:
   - |
-    dma@3000000 {
+    dma-controller@3000000 {
       compatible = "sifive,fu540-c000-pdma";
       reg = <0x3000000 0x8000>;
       interrupts = <23>, <24>, <25>, <26>, <27>, <28>, <29>, <30>;
diff --git a/Documentation/devicetree/bindings/dma/st,stm32-dmamux.yaml b/Documentation/devicetree/bindings/dma/st,stm32-dmamux.yaml
index f751796531c9..7b1833d6caa2 100644
--- a/Documentation/devicetree/bindings/dma/st,stm32-dmamux.yaml
+++ b/Documentation/devicetree/bindings/dma/st,stm32-dmamux.yaml
@@ -46,7 +46,7 @@ examples:
       #dma-cells = <3>;
       dma-requests = <128>;
       dma-channels = <16>;
-      dma-masters = <&dma1 &dma2>;
+      dma-masters = <&dma1>, <&dma2>;
       clocks = <&timer_clk>;
     };
 
diff --git a/Documentation/devicetree/bindings/dma/xilinx/xlnx,zynqmp-dma-1.0.yaml b/Documentation/devicetree/bindings/dma/xilinx/xlnx,zynqmp-dma-1.0.yaml
new file mode 100644
index 000000000000..c0a1408b12ec
--- /dev/null
+++ b/Documentation/devicetree/bindings/dma/xilinx/xlnx,zynqmp-dma-1.0.yaml
@@ -0,0 +1,85 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/dma/xilinx/xlnx,zynqmp-dma-1.0.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Xilinx ZynqMP DMA Engine
+
+description: |
+  The Xilinx ZynqMP DMA engine supports memory to memory transfers,
+  memory to device and device to memory transfers. It also has flow
+  control and rate control support for slave/peripheral dma access.
+
+maintainers:
+  - Michael Tretter <m.tretter@pengutronix.de>
+
+allOf:
+  - $ref: "../dma-controller.yaml#"
+
+properties:
+  "#dma-cells":
+    const: 1
+
+  compatible:
+    const: xlnx,zynqmp-dma-1.0
+
+  reg:
+    description: memory map for gdma/adma module access
+    maxItems: 1
+
+  interrupts:
+    description: DMA channel interrupt
+    maxItems: 1
+
+  clocks:
+    description: input clocks
+    minItems: 2
+    maxItems: 2
+
+  clock-names:
+    items:
+      - const: clk_main
+      - const: clk_apb
+
+  xlnx,bus-width:
+    $ref: /schemas/types.yaml#/definitions/uint32
+    enum:
+      - 64
+      - 128
+    description: AXI bus width in bits
+
+  iommus:
+    maxItems: 1
+
+  power-domains:
+    maxItems: 1
+
+  dma-coherent:
+    description: present if dma operations are coherent
+
+required:
+  - "#dma-cells"
+  - compatible
+  - reg
+  - interrupts
+  - clocks
+  - clock-names
+
+additionalProperties: false
+
+examples:
+  - |
+    #include <dt-bindings/clock/xlnx-zynqmp-clk.h>
+
+    fpd_dma_chan1: dma-controller@fd500000 {
+      compatible = "xlnx,zynqmp-dma-1.0";
+      reg = <0xfd500000 0x1000>;
+      interrupt-parent = <&gic>;
+      interrupts = <0 117 0x4>;
+      #dma-cells = <1>;
+      clock-names = "clk_main", "clk_apb";
+      clocks = <&zynqmp_clk GDMA_REF>, <&zynqmp_clk LPD_LSBUS>;
+      xlnx,bus-width = <128>;
+      dma-coherent;
+    };
diff --git a/Documentation/devicetree/bindings/dma/xilinx/zynqmp_dma.txt b/Documentation/devicetree/bindings/dma/xilinx/zynqmp_dma.txt
deleted file mode 100644
index 07a5a7aa9ea0..000000000000
--- a/Documentation/devicetree/bindings/dma/xilinx/zynqmp_dma.txt
+++ /dev/null
@@ -1,26 +0,0 @@
-Xilinx ZynqMP DMA engine, it does support memory to memory transfers,
-memory to device and device to memory transfers. It also has flow
-control and rate control support for slave/peripheral dma access.
-
-Required properties:
-- compatible		: Should be "xlnx,zynqmp-dma-1.0"
-- reg			: Memory map for gdma/adma module access.
-- interrupts		: Should contain DMA channel interrupt.
-- xlnx,bus-width	: Axi buswidth in bits. Should contain 128 or 64
-- clock-names		: List of input clocks "clk_main", "clk_apb"
-			  (see clock bindings for details)
-
-Optional properties:
-- dma-coherent		: Present if dma operations are coherent.
-
-Example:
-++++++++
-fpd_dma_chan1: dma@fd500000 {
-	compatible = "xlnx,zynqmp-dma-1.0";
-	reg = <0x0 0xFD500000 0x1000>;
-	interrupt-parent = <&gic>;
-	interrupts = <0 117 4>;
-	clock-names = "clk_main", "clk_apb";
-	xlnx,bus-width = <128>;
-	dma-coherent;
-};