diff --git a/Bindings/media/cec/amlogic,meson-gx-ao-cec.yaml b/Bindings/media/cec/amlogic,meson-gx-ao-cec.yaml
new file mode 100644
index 0000000..b1fab53
--- /dev/null
+++ b/Bindings/media/cec/amlogic,meson-gx-ao-cec.yaml
@@ -0,0 +1,92 @@
+# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
+# Copyright 2019 BayLibre, SAS
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/media/cec/amlogic,meson-gx-ao-cec.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Amlogic Meson AO-CEC Controller
+
+maintainers:
+  - Neil Armstrong <neil.armstrong@linaro.org>
+
+description: |
+  The Amlogic Meson AO-CEC module is present is Amlogic SoCs and its purpose is
+  to handle communication between HDMI connected devices over the CEC bus.
+
+properties:
+  compatible:
+    enum:
+      - amlogic,meson-gx-ao-cec # GXBB, GXL, GXM, G12A and SM1 AO_CEC_A module
+      - amlogic,meson-g12a-ao-cec # G12A AO_CEC_B module
+      - amlogic,meson-sm1-ao-cec # SM1 AO_CEC_B module
+
+  reg:
+    maxItems: 1
+
+  clocks:
+    maxItems: 1
+
+  clock-names:
+    maxItems: 1
+
+  interrupts:
+    maxItems: 1
+
+allOf:
+  - $ref: cec-common.yaml#
+  - if:
+      properties:
+        compatible:
+          contains:
+            enum:
+              - amlogic,meson-gx-ao-cec
+
+    then:
+      properties:
+        clocks:
+          items:
+            - description: AO-CEC clock
+
+        clock-names:
+          items:
+            - const: core
+
+  - if:
+      properties:
+        compatible:
+          contains:
+            enum:
+              - amlogic,meson-g12a-ao-cec
+              - amlogic,meson-sm1-ao-cec
+
+    then:
+      properties:
+        clocks:
+          items:
+            - description: AO-CEC clock generator source
+
+        clock-names:
+          items:
+            - const: oscin
+
+required:
+  - compatible
+  - reg
+  - interrupts
+  - hdmi-phandle
+  - clocks
+  - clock-names
+
+unevaluatedProperties: false
+
+examples:
+  - |
+    cec_AO: cec@100 {
+        compatible = "amlogic,meson-gx-ao-cec";
+        reg = <0x00100 0x14>;
+        interrupts = <199>;
+        clocks = <&clkc_cec>;
+        clock-names = "core";
+        hdmi-phandle = <&hdmi_tx>;
+    };
diff --git a/Bindings/media/cec/cec-common.yaml b/Bindings/media/cec/cec-common.yaml
new file mode 100644
index 0000000..af6ee5f
--- /dev/null
+++ b/Bindings/media/cec/cec-common.yaml
@@ -0,0 +1,28 @@
+# SPDX-License-Identifier: GPL-2.0 OR BSD-2-Clause
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/media/cec/cec-common.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: HDMI CEC Adapters Common Properties
+
+maintainers:
+  - Hans Verkuil <hverkuil@xs4all.nl>
+
+properties:
+  $nodename:
+    pattern: "^cec(@[0-9a-f]+|-[0-9]+)?$"
+
+  hdmi-phandle:
+    $ref: /schemas/types.yaml#/definitions/phandle
+    description:
+      Phandle to the HDMI controller.
+
+  needs-hpd:
+    type: boolean
+    description:
+      The CEC support is only available when the HPD is high. Some boards only
+      let the CEC pin through if the HPD is high, for example if there is a
+      level converter that uses the HPD to power up or down.
+
+additionalProperties: true
diff --git a/Bindings/media/cec/cec-gpio.yaml b/Bindings/media/cec/cec-gpio.yaml
new file mode 100644
index 0000000..64d7ec0
--- /dev/null
+++ b/Bindings/media/cec/cec-gpio.yaml
@@ -0,0 +1,74 @@
+# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/media/cec/cec-gpio.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: HDMI CEC GPIO
+
+maintainers:
+  - Hans Verkuil <hverkuil-cisco@xs4all.nl>
+
+description: |
+  The HDMI CEC GPIO module supports CEC implementations where the CEC line is
+  hooked up to a pull-up GPIO line and - optionally - the HPD line is hooked up
+  to another GPIO line.
+
+  Please note:: the maximum voltage for the CEC line is 3.63V, for the HPD and
+  5V lines it is 5.3V. So you may need some sort of level conversion
+  circuitry when connecting them to a GPIO line.
+
+properties:
+  compatible:
+    const: cec-gpio
+
+  cec-gpios:
+    maxItems: 1
+    description:
+      GPIO that the CEC line is connected to. The line should be tagged as open
+      drain.
+
+  hpd-gpios:
+    maxItems: 1
+    description:
+      GPIO that the HPD line is connected to.  Used for debugging HPD changes
+      when the CEC line is not associated with an HDMI receiver/transmitter.
+
+  v5-gpios:
+    maxItems: 1
+    description:
+      GPIO that the 5V line is connected to.  Used for debugging changes on the
+      5V line.
+
+required:
+  - compatible
+  - cec-gpios
+
+allOf:
+  - $ref: cec-common.yaml#
+  - if:
+      required:
+        - hdmi-phandle
+    then:
+      properties:
+        hpd-gpios: false
+
+  - if:
+      required:
+        - hpd-gpios
+    then:
+      properties:
+        hdmi-phandle: false
+
+unevaluatedProperties: false
+
+examples:
+  - |
+    #include <dt-bindings/gpio/gpio.h>
+
+    cec {
+        compatible = "cec-gpio";
+        cec-gpios = <&gpio 7 (GPIO_ACTIVE_HIGH|GPIO_OPEN_DRAIN)>;
+        hpd-gpios = <&gpio 17 GPIO_ACTIVE_HIGH>;
+        v5-gpios = <&gpio 22 GPIO_ACTIVE_HIGH>;
+    };
diff --git a/Bindings/media/cec/nvidia,tegra114-cec.yaml b/Bindings/media/cec/nvidia,tegra114-cec.yaml
new file mode 100644
index 0000000..a6b7349
--- /dev/null
+++ b/Bindings/media/cec/nvidia,tegra114-cec.yaml
@@ -0,0 +1,57 @@
+# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/media/cec/nvidia,tegra114-cec.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: NVIDIA Tegra HDMI CEC
+
+maintainers:
+  - Hans Verkuil <hverkuil-cisco@xs4all.nl>
+
+allOf:
+  - $ref: cec-common.yaml#
+
+properties:
+  compatible:
+    enum:
+      - nvidia,tegra114-cec
+      - nvidia,tegra124-cec
+      - nvidia,tegra210-cec
+
+  clocks:
+    maxItems: 1
+
+  clock-names:
+    items:
+      - const: cec
+
+  interrupts:
+    maxItems: 1
+
+  reg:
+    maxItems: 1
+
+required:
+  - compatible
+  - clocks
+  - clock-names
+  - hdmi-phandle
+  - interrupts
+  - reg
+
+unevaluatedProperties: false
+
+examples:
+  - |
+    #include <dt-bindings/clock/tegra124-car.h>
+    #include <dt-bindings/interrupt-controller/arm-gic.h>
+
+    cec@70015000 {
+        compatible = "nvidia,tegra124-cec";
+        reg = <0x70015000 0x00001000>;
+        interrupts = <GIC_SPI 3 IRQ_TYPE_LEVEL_HIGH>;
+        clocks = <&tegra_car TEGRA124_CLK_CEC>;
+        clock-names = "cec";
+        hdmi-phandle = <&hdmi>;
+    };
diff --git a/Bindings/media/cec/samsung,s5p-cec.yaml b/Bindings/media/cec/samsung,s5p-cec.yaml
new file mode 100644
index 0000000..016c8a7
--- /dev/null
+++ b/Bindings/media/cec/samsung,s5p-cec.yaml
@@ -0,0 +1,66 @@
+# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/media/cec/samsung,s5p-cec.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Samsung S5PV210 and Exynos HDMI CEC
+
+maintainers:
+  - Krzysztof Kozlowski <krzk@kernel.org>
+  - Marek Szyprowski <m.szyprowski@samsung.com>
+
+allOf:
+  - $ref: cec-common.yaml#
+
+properties:
+  compatible:
+    const: samsung,s5p-cec
+
+  clocks:
+    maxItems: 1
+
+  clock-names:
+    items:
+      - const: hdmicec
+
+  interrupts:
+    maxItems: 1
+
+  samsung,syscon-phandle:
+    $ref: /schemas/types.yaml#/definitions/phandle
+    description:
+      Phandle to PMU system controller interface
+
+  reg:
+    maxItems: 1
+
+required:
+  - compatible
+  - clocks
+  - clock-names
+  - hdmi-phandle
+  - interrupts
+  - samsung,syscon-phandle
+  - reg
+
+unevaluatedProperties: false
+
+examples:
+  - |
+    #include <dt-bindings/clock/exynos5420.h>
+    #include <dt-bindings/interrupt-controller/arm-gic.h>
+
+    cec@101b0000 {
+        compatible = "samsung,s5p-cec";
+        reg = <0x101B0000 0x200>;
+
+        clocks = <&clock CLK_HDMI_CEC>;
+        clock-names = "hdmicec";
+        interrupts = <GIC_SPI 114 IRQ_TYPE_LEVEL_HIGH>;
+        hdmi-phandle = <&hdmi>;
+        needs-hpd;
+        pinctrl-names = "default";
+        pinctrl-0 = <&hdmi_cec>;
+        samsung,syscon-phandle = <&pmu_system_controller>;
+    };
diff --git a/Bindings/media/cec/st,stih-cec.yaml b/Bindings/media/cec/st,stih-cec.yaml
new file mode 100644
index 0000000..aeddf16
--- /dev/null
+++ b/Bindings/media/cec/st,stih-cec.yaml
@@ -0,0 +1,66 @@
+# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/media/cec/st,stih-cec.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: STMicroelectronics STIH4xx HDMI CEC
+
+maintainers:
+  - Alain Volmat <alain.volmat@foss.st.com>
+
+allOf:
+  - $ref: cec-common.yaml#
+
+properties:
+  compatible:
+    const: st,stih-cec
+
+  clocks:
+    maxItems: 1
+
+  clock-names:
+    items:
+      - const: cec-clk
+
+  interrupts:
+    maxItems: 1
+
+  interrupt-names:
+    items:
+      - const: cec-irq
+
+  resets:
+    maxItems: 1
+
+  reg:
+    maxItems: 1
+
+required:
+  - compatible
+  - clocks
+  - hdmi-phandle
+  - interrupts
+  - resets
+  - reg
+
+unevaluatedProperties: false
+
+examples:
+  - |
+    #include <dt-bindings/interrupt-controller/arm-gic.h>
+    #include <dt-bindings/reset/stih407-resets.h>
+
+    cec@94a087c {
+        compatible = "st,stih-cec";
+        reg = <0x94a087c 0x64>;
+
+        clocks = <&clk_sysin>;
+        clock-names = "cec-clk";
+        hdmi-phandle = <&sti_hdmi>;
+        interrupts = <GIC_SPI 140 IRQ_TYPE_LEVEL_HIGH>;
+        interrupt-names = "cec-irq";
+        pinctrl-names = "default";
+        pinctrl-0 = <&pinctrl_cec0_default>;
+        resets = <&softreset STIH407_LPM_SOFTRESET>;
+    };
diff --git a/Bindings/media/cec/st,stm32-cec.yaml b/Bindings/media/cec/st,stm32-cec.yaml
new file mode 100644
index 0000000..2314a9a
--- /dev/null
+++ b/Bindings/media/cec/st,stm32-cec.yaml
@@ -0,0 +1,53 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/media/cec/st,stm32-cec.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: STMicroelectronics STM32 CEC
+
+maintainers:
+  - Yannick Fertre <yannick.fertre@foss.st.com>
+
+properties:
+  compatible:
+    const: st,stm32-cec
+
+  reg:
+    maxItems: 1
+
+  interrupts:
+    maxItems: 1
+
+  clocks:
+    items:
+      - description: Module Clock
+      - description: Bus Clock
+
+  clock-names:
+    items:
+      - const: cec
+      - const: hdmi-cec
+
+required:
+  - compatible
+  - reg
+  - interrupts
+  - clocks
+  - clock-names
+
+additionalProperties: false
+
+examples:
+  - |
+    #include <dt-bindings/interrupt-controller/arm-gic.h>
+    #include <dt-bindings/clock/stm32mp1-clks.h>
+    cec: cec@40006c00 {
+        compatible = "st,stm32-cec";
+        reg = <0x40006c00 0x400>;
+        interrupts = <GIC_SPI 94 IRQ_TYPE_LEVEL_HIGH>;
+        clocks = <&rcc CEC_K>, <&clk_lse>;
+        clock-names = "cec", "hdmi-cec";
+    };
+
+...