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Message-Id: <20191211171300.87023-1-jacopo+renesas@jmondi.org>
Date: Wed, 11 Dec 2019 18:13:00 +0100
From: Jacopo Mondi <jacopo+renesas@...ndi.org>
To: robh+dt@...nel.org, mark.rutland@....com
Cc: Jacopo Mondi <jacopo+renesas@...ndi.org>,
linux-media@...r.kernel.org, devicetree@...r.kernel.org,
linux-renesas-soc@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: [PATCH v2] 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@...ndi.org>
---
v1 -> v2:
- Dual license as suggested by Rob
- Fix compatible string for r7s72100-ceu
- Add 'default' to bus-width endpoint property
Thanks
j
---
.../devicetree/bindings/media/renesas,ceu.txt | 86 -------------------
.../bindings/media/renesas,ceu.yaml | 78 +++++++++++++++++
MAINTAINERS | 2 +-
3 files changed, 79 insertions(+), 87 deletions(-)
delete mode 100644 Documentation/devicetree/bindings/media/renesas,ceu.txt
create mode 100644 Documentation/devicetree/bindings/media/renesas,ceu.yaml
diff --git a/Documentation/devicetree/bindings/media/renesas,ceu.txt b/Documentation/devicetree/bindings/media/renesas,ceu.txt
deleted file mode 100644
index 3e2a2652eb19..000000000000
--- 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@...10000 {
- 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@...ee400 {
- 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
index 000000000000..8e9251a0f9ef
--- /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@...ndi.org>
+ - linux-renesas-soc@...r.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@...10000 {
+ 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 eefa1e066655..df75855839f1 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -10276,7 +10276,7 @@ L: linux-media@...r.kernel.org
L: linux-renesas-soc@...r.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
--
2.24.0
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