9 files changed, 108 insertions, 36 deletions
diff --git a/Bindings/serial/actions,owl-uart.txt b/Bindings/serial/actions,owl-uart.txt
deleted file mode 100644
index aa873eada02..00000000000
--- a/Bindings/serial/actions,owl-uart.txt
+++ /dev/null
@@ -1,16 +0,0 @@
-Actions Semi Owl UART
-
-Required properties:
-- compatible :  "actions,s500-uart", "actions,owl-uart" for S500
-                "actions,s900-uart", "actions,owl-uart" for S900
-- reg        :  Offset and length of the register set for the device.
-- interrupts :  Should contain UART interrupt.
-
-
-Example:
-
-		uart3: serial@b0126000 {
-			compatible = "actions,s500-uart", "actions,owl-uart";
-			reg = <0xb0126000 0x1000>;
-			interrupts = <GIC_SPI 32 IRQ_TYPE_LEVEL_HIGH>;
-		};
diff --git a/Bindings/serial/actions,owl-uart.yaml b/Bindings/serial/actions,owl-uart.yaml
new file mode 100644
index 00000000000..ab1c4514ae9
--- /dev/null
+++ b/Bindings/serial/actions,owl-uart.yaml
@@ -0,0 +1,48 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/serial/actions,owl-uart.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Actions Semi Owl UART
+
+maintainers:
+  - Kanak Shilledar <kanakshilledar111@protonmail.com>
+
+allOf:
+  - $ref: serial.yaml
+
+properties:
+  compatible:
+    items:
+      - enum:
+          - actions,s500-uart
+          - actions,s900-uart
+      - const: actions,owl-uart
+
+  reg:
+    maxItems: 1
+
+  interrupts:
+    maxItems: 1
+
+  clocks:
+    maxItems: 1
+
+required:
+  - compatible
+  - reg
+  - interrupts
+
+unevaluatedProperties: false
+
+examples:
+  - |
+    #include <dt-bindings/clock/actions,s500-cmu.h>
+    #include <dt-bindings/interrupt-controller/arm-gic.h>
+    uart0: serial@b0126000 {
+        compatible = "actions,s500-uart", "actions,owl-uart";
+        reg = <0xb0126000 0x1000>;
+        clocks = <&cmu CLK_UART0>;
+        interrupts = <GIC_SPI 32 IRQ_TYPE_LEVEL_HIGH>;
+    };
diff --git a/Bindings/serial/amlogic,meson-uart.yaml b/Bindings/serial/amlogic,meson-uart.yaml
index 2e189e54832..0565fb7649c 100644
--- a/Bindings/serial/amlogic,meson-uart.yaml
+++ b/Bindings/serial/amlogic,meson-uart.yaml
@@ -54,7 +54,9 @@ properties:
           - const: amlogic,meson-gx-uart
       - description: UART controller on S4 compatible SoCs
         items:
-          - const: amlogic,t7-uart
+          - enum:
+              - amlogic,a4-uart
+              - amlogic,t7-uart
           - const: amlogic,meson-s4-uart
 
   reg:
diff --git a/Bindings/serial/brcm,bcm2835-aux-uart.txt b/Bindings/serial/brcm,bcm2835-aux-uart.txt
deleted file mode 100644
index b5cc6297cd1..00000000000
--- a/Bindings/serial/brcm,bcm2835-aux-uart.txt
+++ /dev/null
@@ -1,18 +0,0 @@
-* BCM2835 AUXILIAR UART
-
-Required properties:
-
-- compatible: "brcm,bcm2835-aux-uart"
-- reg: The base address of the UART register bank.
-- interrupts: A single interrupt specifier.
-- clocks: Clock driving the hardware; used to figure out the baud rate
-  divisor.
-
-Example:
-
-	uart1: serial@7e215040 {
-		compatible = "brcm,bcm2835-aux-uart";
-		reg = <0x7e215040 0x40>;
-		interrupts = <1 29>;
-		clocks = <&aux BCM2835_AUX_CLOCK_UART>;
-	};
diff --git a/Bindings/serial/brcm,bcm2835-aux-uart.yaml b/Bindings/serial/brcm,bcm2835-aux-uart.yaml
new file mode 100644
index 00000000000..6b72459f7dc
--- /dev/null
+++ b/Bindings/serial/brcm,bcm2835-aux-uart.yaml
@@ -0,0 +1,46 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/serial/brcm,bcm2835-aux-uart.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: BCM2835 AUXILIARY UART
+
+maintainers:
+  - Pratik Farkase <pratikfarkase94@gmail.com>
+  - Florian Fainelli <florian.fainelli@broadcom.com>
+  - Stefan Wahren <wahrenst@gmx.net>
+
+allOf:
+  - $ref: serial.yaml
+
+properties:
+  compatible:
+    const: brcm,bcm2835-aux-uart
+
+  reg:
+    maxItems: 1
+
+  interrupts:
+    maxItems: 1
+
+  clocks:
+    maxItems: 1
+
+required:
+  - compatible
+  - reg
+  - interrupts
+  - clocks
+
+unevaluatedProperties: false
+
+examples:
+  - |
+    #include <dt-bindings/clock/bcm2835-aux.h>
+    serial@7e215040 {
+        compatible = "brcm,bcm2835-aux-uart";
+        reg = <0x7e215040 0x40>;
+        interrupts = <1 29>;
+        clocks = <&aux BCM2835_AUX_CLOCK_UART>;
+    };
diff --git a/Bindings/serial/cdns,uart.yaml b/Bindings/serial/cdns,uart.yaml
index 2129247d7c8..d7f047b0bf2 100644
--- a/Bindings/serial/cdns,uart.yaml
+++ b/Bindings/serial/cdns,uart.yaml
@@ -46,6 +46,9 @@ properties:
   power-domains:
     maxItems: 1
 
+  resets:
+    maxItems: 1
+
 required:
   - compatible
   - reg
diff --git a/Bindings/serial/fsl,s32-linflexuart.yaml b/Bindings/serial/fsl,s32-linflexuart.yaml
index 7a105551fa6..4171f524a92 100644
--- a/Bindings/serial/fsl,s32-linflexuart.yaml
+++ b/Bindings/serial/fsl,s32-linflexuart.yaml
@@ -23,7 +23,9 @@ properties:
     oneOf:
       - const: fsl,s32v234-linflexuart
       - items:
-          - const: nxp,s32g2-linflexuart
+          - enum:
+              - nxp,s32g2-linflexuart
+              - nxp,s32g3-linflexuart
           - const: fsl,s32v234-linflexuart
 
   reg:
diff --git a/Bindings/serial/renesas,scif.yaml b/Bindings/serial/renesas,scif.yaml
index 4610a5bd580..f3a3eb2831e 100644
--- a/Bindings/serial/renesas,scif.yaml
+++ b/Bindings/serial/renesas,scif.yaml
@@ -68,6 +68,7 @@ properties:
               - renesas,scif-r8a779a0     # R-Car V3U
               - renesas,scif-r8a779f0     # R-Car S4-8
               - renesas,scif-r8a779g0     # R-Car V4H
+              - renesas,scif-r8a779h0     # R-Car V4M
           - const: renesas,rcar-gen4-scif # R-Car Gen4
           - const: renesas,scif           # generic SCIF compatible UART
 
diff --git a/Bindings/serial/st,stm32-uart.yaml b/Bindings/serial/st,stm32-uart.yaml
index 62f97da1b2f..2ed52613926 100644
--- a/Bindings/serial/st,stm32-uart.yaml
+++ b/Bindings/serial/st,stm32-uart.yaml
@@ -73,6 +73,10 @@ properties:
     enum: [1, 2, 4, 8, 12, 14, 16]
     default: 8
 
+  access-controllers:
+    minItems: 1
+    maxItems: 2
+
 allOf:
   - $ref: rs485.yaml#
   - $ref: serial.yaml#