Merge tag 'devicetree-for-5.5' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux

Pull Devicetree updates from Rob Herring:

 - DT schemas for PWM, syscon, power domains, SRAM, syscon-reboot,
   syscon-poweroff, renesas-irqc, simple-pm-bus, renesas-bsc, pwm-rcar,
   Renesas tpu, at24 eeprom, rtc-sh, Allwinner PS/2, sharp,ld-d5116z01b
   panel, Arm SMMU, max77650, Meson CEC, Amlogic canvas and DWC3 glue,
   Allwinner A10 mUSB and CAN, TI Davinci MDIO, QCom QCS404
   interconnect, Unisoc/Spreadtrum SoCs and UART

 - Convert a bunch of Samsung bindings to DT schema

 - Convert a bunch of ST stm32 bindings to DT schema

 - Realtek and Exynos additions to Arm Mali bindings

 - Fix schema errors in RiscV CPU schema

 - Various schema fixes from improved meta-schema checks

 - Improve the handling of 'dma-ranges' and in particular fix DMA mask
   setup on PCI bridges

 - Fix a memory leak in add_changeset_property() and DT unit tests.

 - Several documentation improvements for schema validation

 - Rework build rules to improve schema validation errors

 - Color output for dtx_diff

* tag 'devicetree-for-5.5' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux: (138 commits)
  libfdt: define INT32_MAX and UINT32_MAX in libfdt_env.h
  dt-bindings: arm: Remove leftover axentia.txt
  of: unittest: fix memory leak in attach_node_and_children
  of: overlay: add_changeset_property() memory leak
  dt-bindings: interrupt-controller: arm,gic-v3: Add missing type to interrupt-partition-* nodes
  dt-bindings: firmware: ixp4xx: Drop redundant minItems/maxItems
  dt-bindings: power: Rename back power_domain.txt bindings to fix references
  dt-bindings: i2c: stm32: Migrate i2c-stm32 documentation to yaml
  dt-bindings: mtd: Convert stm32 fmc2-nand bindings to json-schema
  dt-bindings: remoteproc: convert stm32-rproc to json-schema
  dt-bindings: mailbox: convert stm32-ipcc to json-schema
  dt-bindings: mfd: Convert stm32 low power timers bindings to json-schema
  dt-bindings: interrupt-controller: Convert stm32-exti to json-schema
  dt-bindings: crypto: Convert stm32 HASH bindings to json-schema
  dt-bindings: rng: Convert stm32 RNG bindings to json-schema
  dt-bindings: pwm: Convert Samsung PWM bindings to json-schema
  dt-bindings: pwm: Convert PWM bindings to json-schema
  dt-bindings: serial: Add a new compatible string for SC9863A
  dt-bindings: serial: Convert sprd-uart to json-schema
  dt-bindings: arm: Add bindings for Unisoc SC9863A
  ...

4 files changed, 93 insertions, 44 deletions

diff --git a/Documentation/devicetree/bindings/rng/samsung,exynos4-rng.txt b/Documentation/devicetree/bindings/rng/samsung,exynos4-rng.txt
deleted file mode 100644
index a13fbdb4bd88..000000000000
--- a/Documentation/devicetree/bindings/rng/samsung,exynos4-rng.txt
+++ /dev/null
@@ -1,19 +0,0 @@
-Exynos Pseudo Random Number Generator
-
-Required properties:
-
-- compatible  : One of:
-                - "samsung,exynos4-rng" for Exynos4210 and Exynos4412
-                - "samsung,exynos5250-prng" for Exynos5250+
-- reg         : Specifies base physical address and size of the registers map.
-- clocks      : Phandle to clock-controller plus clock-specifier pair.
-- clock-names : "secss" as a clock name.
-
-Example:
-
-	rng@10830400 {
-		compatible = "samsung,exynos4-rng";
-		reg = <0x10830400 0x200>;
-		clocks = <&clock CLK_SSS>;
-		clock-names = "secss";
-	};
diff --git a/Documentation/devicetree/bindings/rng/samsung,exynos4-rng.yaml b/Documentation/devicetree/bindings/rng/samsung,exynos4-rng.yaml
new file mode 100644
index 000000000000..3362cb1213c0
--- /dev/null
+++ b/Documentation/devicetree/bindings/rng/samsung,exynos4-rng.yaml
@@ -0,0 +1,45 @@
+# SPDX-License-Identifier: GPL-2.0
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/rng/samsung,exynos4-rng.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Samsung Exynos SoC Pseudo Random Number Generator
+
+maintainers:
+  - Krzysztof Kozlowski <krzk@kernel.org>
+
+properties:
+  compatible:
+    enum:
+      - samsung,exynos4-rng                   # for Exynos4210 and Exynos4412
+      - samsung,exynos5250-prng               # for Exynos5250+
+
+  reg:
+    maxItems: 1
+
+  clocks:
+    maxItems: 1
+
+  clock-names:
+    items:
+      - const: secss
+
+required:
+  - compatible
+  - reg
+  - clock-names
+  - clocks
+
+additionalProperties: false
+
+examples:
+  - |
+    #include <dt-bindings/clock/exynos4.h>
+
+    rng@10830400 {
+        compatible = "samsung,exynos4-rng";
+        reg = <0x10830400 0x200>;
+        clocks = <&clock CLK_SSS>;
+        clock-names = "secss";
+    };
diff --git a/Documentation/devicetree/bindings/rng/st,stm32-rng.txt b/Documentation/devicetree/bindings/rng/st,stm32-rng.txt
deleted file mode 100644
index 1dfa7d51e006..000000000000
--- a/Documentation/devicetree/bindings/rng/st,stm32-rng.txt
+++ /dev/null
@@ -1,25 +0,0 @@
-STMicroelectronics STM32 HW RNG
-===============================
-
-The STM32 hardware random number generator is a simple fixed purpose IP and
-is fully separated from other crypto functions.
-
-Required properties:
-
-- compatible : Should be "st,stm32-rng"
-- reg : Should be register base and length as documented in the datasheet
-- interrupts : The designated IRQ line for the RNG
-- clocks : The clock needed to enable the RNG
-
-Optional properties:
-- resets : The reset to properly start RNG
-- clock-error-detect : Enable the clock detection management
-
-Example:
-
-	rng: rng@50060800 {
-		compatible = "st,stm32-rng";
-		reg = <0x50060800 0x400>;
-		interrupts = <80>;
-		clocks = <&rcc 0 38>;
-	};
diff --git a/Documentation/devicetree/bindings/rng/st,stm32-rng.yaml b/Documentation/devicetree/bindings/rng/st,stm32-rng.yaml
new file mode 100644
index 000000000000..82bb2e97e889
--- /dev/null
+++ b/Documentation/devicetree/bindings/rng/st,stm32-rng.yaml
@@ -0,0 +1,48 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/rng/st,stm32-rng.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: STMicroelectronics STM32 RNG bindings
+
+description: |
+  The STM32 hardware random number generator is a simple fixed purpose
+  IP and is fully separated from other crypto functions.
+
+maintainers:
+  - Lionel Debieve <lionel.debieve@st.com>
+
+properties:
+  compatible:
+    const: st,stm32-rng
+
+  reg:
+    maxItems: 1
+
+  clocks:
+    maxItems: 1
+
+  resets:
+    maxItems: 1
+
+  clock-error-detect:
+    description: If set enable the clock detection management
+
+required:
+  - compatible
+  - reg
+  - clocks
+
+additionalProperties: false
+
+examples:
+  - |
+    #include <dt-bindings/clock/stm32mp1-clks.h>
+    rng@54003000 {
+      compatible = "st,stm32-rng";
+      reg = <0x54003000 0x400>;
+      clocks = <&rcc RNG1_K>;
+    };
+
+...