dt-bindings: media: renesas,ceu: Convert to yaml

Convert the Renesas CEU bindings description to yaml schema and remove
the existing textual bindings document.

Signed-off-by: Jacopo Mondi <jacopo+renesas@jmondi.org>
Signed-off-by: Rob Herring <robh@kernel.org>

diff --git a/Documentation/devicetree/bindings/media/renesas,ceu.txt b/Documentation/devicetree/bindings/media/renesas,ceu.txt
deleted file mode 100644 (file)
index 3e2a265..0000000
--- a/Documentation/devicetree/bindings/media/renesas,ceu.txt
+++ /dev/null
@@ -1,86 +0,0 @@
-Renesas Capture Engine Unit (CEU)
-----------------------------------------------
-
-The Capture Engine Unit is the image capture interface found in the Renesas
-SH Mobile, R-Mobile and RZ SoCs.
-
-The interface supports a single parallel input with data bus width of 8 or 16
-bits.
-
-Required properties:
-- compatible: Shall be one of the following values:
-       "renesas,r7s72100-ceu" for CEU units found in RZ/A1H and RZ/A1M SoCs
-       "renesas,r8a7740-ceu" for CEU units found in R-Mobile A1 R8A7740 SoCs
-- reg: Registers address base and size.
-- interrupts: The interrupt specifier.
-
-The CEU supports a single parallel input and should contain a single 'port'
-subnode with a single 'endpoint'. Connection to input devices are modeled
-according to the video interfaces OF bindings specified in:
-[1] Documentation/devicetree/bindings/media/video-interfaces.txt
-
-Optional endpoint properties applicable to parallel input bus described in
-the above mentioned "video-interfaces.txt" file are supported.
-
-- hsync-active: See [1] for description. If property is not present,
-  default is active high.
-- vsync-active: See [1] for description. If property is not present,
-  default is active high.
-- bus-width: See [1] for description. Accepted values are '8' and '16'.
-  If property is not present, default is '8'.
-- field-even-active: See [1] for description. If property is not present,
-  an even field is identified by a logic 0 (active-low signal).
-
-Example:
-
-The example describes the connection between the Capture Engine Unit and an
-OV7670 image sensor connected to i2c1 interface.
-
-ceu: ceu@e8210000 {
-       reg = <0xe8210000 0x209c>;
-       compatible = "renesas,r7s72100-ceu";
-       interrupts = <GIC_SPI 332 IRQ_TYPE_LEVEL_HIGH>;
-
-       pinctrl-names = "default";
-       pinctrl-0 = <&vio_pins>;
-
-       status = "okay";
-
-       port {
-               ceu_in: endpoint {
-                       remote-endpoint = <&ov7670_out>;
-
-                       hsync-active = <1>;
-                       vsync-active = <0>;
-               };
-       };
-};
-
-i2c1: i2c@fcfee400 {
-       pinctrl-names = "default";
-       pinctrl-0 = <&i2c1_pins>;
-
-       status = "okay";
-
-       clock-frequency = <100000>;
-
-       ov7670: camera@21 {
-               compatible = "ovti,ov7670";
-               reg = <0x21>;
-
-               pinctrl-names = "default";
-               pinctrl-0 = <&vio_pins>;
-
-               reset-gpios = <&port3 11 GPIO_ACTIVE_LOW>;
-               powerdown-gpios = <&port3 12 GPIO_ACTIVE_HIGH>;
-
-               port {
-                       ov7670_out: endpoint {
-                               remote-endpoint = <&ceu_in>;
-
-                               hsync-active = <1>;
-                               vsync-active = <0>;
-                       };
-               };
-       };
-};

diff --git a/Documentation/devicetree/bindings/media/renesas,ceu.yaml b/Documentation/devicetree/bindings/media/renesas,ceu.yaml
new file mode 100644 (file)
index 0000000..8e9251a
--- /dev/null
+++ b/Documentation/devicetree/bindings/media/renesas,ceu.yaml
@@ -0,0 +1,78 @@
+# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/media/renesas,ceu.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Renesas Capture Engine Unit (CEU) Bindings
+
+maintainers:
+  - Jacopo Mondi <jacopo+renesas@jmondi.org>
+  - linux-renesas-soc@vger.kernel.org
+
+description: |+
+  The Capture Engine Unit is the image capture interface found in the Renesas SH
+  Mobile, R-Mobile and RZ SoCs. The interface supports a single parallel input
+  with data bus width of 8 or 16 bits.
+
+properties:
+  compatible:
+    enum:
+      - renesas,r7s72100-ceu
+      - renesas,r8a7740-ceu
+
+  reg:
+    maxItems: 1
+
+  interrupts:
+    maxItems: 1
+
+  port:
+    type: object
+    additionalProperties: false
+
+    properties:
+       endpoint:
+         type: object
+         additionalProperties: false
+
+         # Properties described in
+         # Documentation/devicetree/bindings/media/video-interfaces.txt
+         properties:
+           remote-endpoint: true
+           hsync-active: true
+           vsync-active: true
+           field-even-active: false
+           bus-width:
+             enum: [8, 16]
+             default: 8
+
+         required:
+           - remote-endpoint
+
+    required:
+      - endpoint
+
+required:
+  - compatible
+  - reg
+  - interrupts
+  - port
+
+examples:
+  - |
+    #include <dt-bindings/interrupt-controller/arm-gic.h>
+
+    ceu: ceu@e8210000 {
+        reg = <0xe8210000 0x209c>;
+        compatible = "renesas,r7s72100-ceu";
+        interrupts = <GIC_SPI 332 IRQ_TYPE_LEVEL_HIGH>;
+
+        port {
+            ceu_in: endpoint {
+                remote-endpoint = <&ov7670_out>;
+                hsync-active = <1>;
+                vsync-active = <0>;
+            };
+        };
+    };

diff --git a/MAINTAINERS b/MAINTAINERS
index cc0a4a8..111340d 100644 (file)
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -10277,7 +10277,7 @@ L:      linux-media@vger.kernel.org
 L:     linux-renesas-soc@vger.kernel.org
 T:     git git://linuxtv.org/media_tree.git
 S:     Supported
-F:     Documentation/devicetree/bindings/media/renesas,ceu.txt
+F:     Documentation/devicetree/bindings/media/renesas,ceu.yaml
 F:     drivers/media/platform/renesas-ceu.c
 F:     include/media/drv-intf/renesas-ceu.h