7 files changed, 138 insertions, 33 deletions
diff --git a/dts/Bindings/rng/atmel-trng.txt b/dts/Bindings/rng/atmel-trng.txt
index 4ac5aaa2d0..3900ee4f35 100644
--- a/dts/Bindings/rng/atmel-trng.txt
+++ b/dts/Bindings/rng/atmel-trng.txt
@@ -1,7 +1,7 @@
 Atmel TRNG (True Random Number Generator) block
 
 Required properties:
-- compatible : Should be "atmel,at91sam9g45-trng"
+- compatible : Should be "atmel,at91sam9g45-trng" or "microchip,sam9x60-trng"
 - reg : Offset and length of the register set of this block
 - interrupts : the interrupt number for the TRNG block
 - clocks: should contain the TRNG clk source
diff --git a/dts/Bindings/rng/nuvoton,npcm-rng.txt b/dts/Bindings/rng/nuvoton,npcm-rng.txt
new file mode 100644
index 0000000000..65c04172fc
--- /dev/null
+++ b/dts/Bindings/rng/nuvoton,npcm-rng.txt
@@ -0,0 +1,12 @@
+NPCM SoC Random Number Generator
+
+Required properties:
+- compatible  : "nuvoton,npcm750-rng" for the NPCM7XX BMC.
+- reg         : Specifies physical base address and size of the registers.
+
+Example:
+
+rng: rng@f000b000 {
+	compatible = "nuvoton,npcm750-rng";
+	reg = <0xf000b000 0x8>;
+};
diff --git a/dts/Bindings/rng/omap3_rom_rng.txt b/dts/Bindings/rng/omap3_rom_rng.txt
new file mode 100644
index 0000000000..f315c9723b
--- /dev/null
+++ b/dts/Bindings/rng/omap3_rom_rng.txt
@@ -0,0 +1,27 @@
+OMAP ROM RNG driver binding
+
+Secure SoCs may provide RNG via secure ROM calls like Nokia N900 does. The
+implementation can depend on the SoC secure ROM used.
+
+- compatible:
+	Usage: required
+	Value type: <string>
+	Definition: must be "nokia,n900-rom-rng"
+
+- clocks:
+	Usage: required
+	Value type: <prop-encoded-array>
+	Definition: reference to the the RNG interface clock
+
+- clock-names:
+	Usage: required
+	Value type: <stringlist>
+	Definition: must be "ick"
+
+Example:
+
+	rom_rng: rng {
+		compatible = "nokia,n900-rom-rng";
+		clocks = <&rng_ick>;
+		clock-names = "ick";
+	};
diff --git a/dts/Bindings/rng/samsung,exynos4-rng.yaml b/dts/Bindings/rng/samsung,exynos4-rng.yaml
new file mode 100644
index 0000000000..3362cb1213
--- /dev/null
+++ b/dts/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/dts/Bindings/rng/samsung,exynos4-rng.txt b/dts/Bindings/rng/samsung,exynos5250-trng.txt
index a13fbdb4bd..5a613a4ec7 100644
--- a/dts/Bindings/rng/samsung,exynos4-rng.txt
+++ b/dts/Bindings/rng/samsung,exynos5250-trng.txt
@@ -1,19 +1,17 @@
-Exynos Pseudo Random Number Generator
+Exynos True Random Number Generator
 
 Required properties:
 
-- compatible  : One of:
-                - "samsung,exynos4-rng" for Exynos4210 and Exynos4412
-                - "samsung,exynos5250-prng" for Exynos5250+
+- compatible  : Should be "samsung,exynos5250-trng".
 - 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>;
+	rng@10830600 {
+		compatible = "samsung,exynos5250-trng";
+		reg = <0x10830600 0x100>;
 		clocks = <&clock CLK_SSS>;
 		clock-names = "secss";
 	};
diff --git a/dts/Bindings/rng/st,stm32-rng.txt b/dts/Bindings/rng/st,stm32-rng.txt
deleted file mode 100644
index 1dfa7d51e0..0000000000
--- a/dts/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/dts/Bindings/rng/st,stm32-rng.yaml b/dts/Bindings/rng/st,stm32-rng.yaml
new file mode 100644
index 0000000000..82bb2e97e8
--- /dev/null
+++ b/dts/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>;
+    };
+
+...