diff --git a/Documentation/devicetree/bindings/serial/nxp,sc16is7xx.txt b/Documentation/devicetree/bindings/serial/nxp,sc16is7xx.txt
deleted file mode 100644
index d89815c5c562..000000000000
--- a/Documentation/devicetree/bindings/serial/nxp,sc16is7xx.txt
+++ /dev/null
@@ -1,118 +0,0 @@
-* NXP SC16IS7xx advanced Universal Asynchronous Receiver-Transmitter (UART)
-* i2c as bus
-
-Required properties:
-- compatible: Should be one of the following:
-  - "nxp,sc16is740" for NXP SC16IS740,
-  - "nxp,sc16is741" for NXP SC16IS741,
-  - "nxp,sc16is750" for NXP SC16IS750,
-  - "nxp,sc16is752" for NXP SC16IS752,
-  - "nxp,sc16is760" for NXP SC16IS760,
-  - "nxp,sc16is762" for NXP SC16IS762.
-- reg: I2C address of the SC16IS7xx device.
-- interrupts: Should contain the UART interrupt
-- clocks: Reference to the IC source clock.
-	OR (when there is no clock provider visible to the platform)
-- clock-frequency: The source clock frequency for the IC.
-
-Optional properties:
-- gpio-controller: Marks the device node as a GPIO controller.
-- #gpio-cells: Should be two. The first cell is the GPIO number and
-  the second cell is used to specify the GPIO polarity:
-    0 = active high,
-    1 = active low.
-- nxp,irda-mode-ports: An array that lists the indices of the port that
-		       should operate in IrDA mode.
-- nxp,modem-control-line-ports: An array that lists the indices of the port that
-				should have shared GPIO lines configured as
-				modem control lines.
-
-Example:
-        sc16is750: sc16is750@51 {
-                compatible = "nxp,sc16is750";
-                reg = <0x51>;
-                clocks = <&clk20m>;
-                interrupt-parent = <&gpio3>;
-                interrupts = <7 IRQ_TYPE_EDGE_FALLING>;
-                gpio-controller;
-                #gpio-cells = <2>;
-        };
-
-	sc16is752: sc16is752@53 {
-		compatible = "nxp,sc16is752";
-		reg = <0x53>;
-		clocks = <&clk20m>;
-		interrupt-parent = <&gpio3>;
-		interrupts = <7 IRQ_TYPE_EDGE_FALLING>;
-		nxp,modem-control-line-ports = <1>; /* Port 1 as modem control lines */
-		gpio-controller; /* Port 0 as GPIOs */
-		#gpio-cells = <2>;
-	};
-
-	sc16is752: sc16is752@54 {
-		compatible = "nxp,sc16is752";
-		reg = <0x54>;
-		clocks = <&clk20m>;
-		interrupt-parent = <&gpio3>;
-		interrupts = <7 IRQ_TYPE_EDGE_FALLING>;
-		nxp,modem-control-line-ports = <0 1>; /* Ports 0 and 1 as modem control lines */
-	};
-
-* spi as bus
-
-Required properties:
-- compatible: Should be one of the following:
-  - "nxp,sc16is740" for NXP SC16IS740,
-  - "nxp,sc16is741" for NXP SC16IS741,
-  - "nxp,sc16is750" for NXP SC16IS750,
-  - "nxp,sc16is752" for NXP SC16IS752,
-  - "nxp,sc16is760" for NXP SC16IS760,
-  - "nxp,sc16is762" for NXP SC16IS762.
-- reg: SPI chip select number.
-- interrupts: Specifies the interrupt source of the parent interrupt
-  controller. The format of the interrupt specifier depends on the
-  parent interrupt controller.
-- clocks: phandle to the IC source clock.
-
-Optional properties:
-- gpio-controller: Marks the device node as a GPIO controller.
-- #gpio-cells: Should be two. The first cell is the GPIO number and
-  the second cell is used to specify the GPIO polarity:
-    0 = active high,
-    1 = active low.
-- nxp,irda-mode-ports: An array that lists the indices of the port that
-		       should operate in IrDA mode.
-- nxp,modem-control-line-ports: An array that lists the indices of the port that
-				should have shared GPIO lines configured as
-				modem control lines.
-
-Example:
-	sc16is750: sc16is750@0 {
-		compatible = "nxp,sc16is750";
-		reg = <0>;
-		clocks = <&clk20m>;
-		interrupt-parent = <&gpio3>;
-		interrupts = <7 IRQ_TYPE_EDGE_FALLING>;
-		gpio-controller;
-		#gpio-cells = <2>;
-	};
-
-	sc16is752: sc16is752@1 {
-		compatible = "nxp,sc16is752";
-		reg = <1>;
-		clocks = <&clk20m>;
-		interrupt-parent = <&gpio3>;
-		interrupts = <7 IRQ_TYPE_EDGE_FALLING>;
-		nxp,modem-control-line-ports = <1>; /* Port 1 as modem control lines */
-		gpio-controller; /* Port 0 as GPIOs */
-		#gpio-cells = <2>;
-	};
-
-	sc16is752: sc16is752@2 {
-		compatible = "nxp,sc16is752";
-		reg = <2>;
-		clocks = <&clk20m>;
-		interrupt-parent = <&gpio3>;
-		interrupts = <7 IRQ_TYPE_EDGE_FALLING>;
-		nxp,modem-control-line-ports = <0 1>; /* Ports 0 and 1 as modem control lines */
-	};
diff --git a/Documentation/devicetree/bindings/serial/nxp,sc16is7xx.yaml b/Documentation/devicetree/bindings/serial/nxp,sc16is7xx.yaml
new file mode 100644
index 000000000000..508639e09e06
--- /dev/null
+++ b/Documentation/devicetree/bindings/serial/nxp,sc16is7xx.yaml
@@ -0,0 +1,126 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/serial/nxp,sc16is7xx.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: NXP SC16IS7xx advanced Universal Asynchronous Receiver-Transmitter (UART)
+
+maintainers:
+  - Hugo Villeneuve <hvilleneuve@dimonoff.com>
+
+properties:
+  compatible:
+    enum:
+      - nxp,sc16is740
+      - nxp,sc16is741
+      - nxp,sc16is750
+      - nxp,sc16is752
+      - nxp,sc16is760
+      - nxp,sc16is762
+
+  reg:
+    maxItems: 1
+
+  interrupts:
+    maxItems: 1
+
+  clocks:
+    maxItems: 1
+    description: Reference to the IC source clock.
+
+  clock-frequency:
+    description: |
+      When there is no clock provider visible to the platform, this
+      is the source crystal or external clock frequency for the IC in Hz.
+    $ref: /schemas/types.yaml#/definitions/uint32
+    minimum: 1
+    maximum: 80000000
+
+  gpio-controller:
+    description: Marks the device node as a GPIO controller.
+    type: boolean
+
+  "#gpio-cells":
+    const: 2
+
+  gpio-line-names:
+    minItems: 1
+    maxItems: 8
+
+  nxp,irda-mode-ports:
+    description: |
+      An array that lists the indices of the port that should operate in IrDA
+      mode:
+      0: port A
+      1: port B
+    $ref: /schemas/types.yaml#/definitions/uint32-array
+    minItems: 1
+    maxItems: 2
+    items:
+      minimum: 0
+      maximum: 1
+
+  nxp,modem-control-line-ports:
+    description: |
+      An array that lists the indices of the port that should have shared GPIO
+      lines configured as modem control lines:
+      0: port A
+      1: port B
+    $ref: /schemas/types.yaml#/definitions/uint32-array
+    minItems: 1
+    maxItems: 2
+    items:
+      minimum: 0
+      maximum: 1
+
+allOf:
+  - $ref: /schemas/spi/spi-peripheral-props.yaml#
+  - $ref: /schemas/serial/serial.yaml#
+  - $ref: /schemas/serial/rs485.yaml#
+
+required:
+  - compatible
+  - reg
+  - interrupts
+
+oneOf:
+  - required:
+      - clocks
+  - required:
+      - clock-frequency
+
+unevaluatedProperties: false
+
+examples:
+  - |
+    #include <dt-bindings/interrupt-controller/irq.h>
+    serial0: serial@51 {
+        compatible = "nxp,sc16is750";
+        reg = <0x51>;
+        clocks = <&clk20m>;
+        interrupt-parent = <&gpio3>;
+        interrupts = <7 IRQ_TYPE_EDGE_FALLING>;
+        gpio-controller;
+        #gpio-cells = <2>;
+    };
+
+    serial1: serial@53 {
+        compatible = "nxp,sc16is752";
+        reg = <0x53>;
+        clocks = <&clk20m>;
+        interrupt-parent = <&gpio3>;
+        interrupts = <7 IRQ_TYPE_EDGE_FALLING>;
+        nxp,modem-control-line-ports = <1>; /* Port 1 as modem control lines */
+        gpio-controller; /* Port 0 as GPIOs */
+        #gpio-cells = <2>;
+    };
+
+    serial2: serial@54 {
+        compatible = "nxp,sc16is752";
+        reg = <0x54>;
+        clocks = <&clk20m>;
+        interrupt-parent = <&gpio3>;
+        interrupts = <7 IRQ_TYPE_EDGE_FALLING>;
+        nxp,modem-control-line-ports = <0 1>; /* Ports 0 and 1 as modem control lines */
+    };
