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From: Jacopo Mondi <jacopo+renesas@jmondi.org>
To: laurent.pinchart@ideasonboard.com, magnus.damm@gmail.com,
	geert@glider.be, hverkuil@xs4all.nl, mchehab@kernel.org,
	festevam@gmail.com, sakari.ailus@iki.fi, robh+dt@kernel.org,
	mark.rutland@arm.com, pombredanne@nexb.com
Cc: Jacopo Mondi <jacopo+renesas@jmondi.org>,
	linux-renesas-soc@vger.kernel.org, linux-media@vger.kernel.org,
	linux-sh@vger.kernel.org, devicetree@vger.kernel.org,
	linux-kernel@vger.kernel.org
Subject: [PATCH v7 01/11] dt-bindings: media: Add Renesas CEU bindings
Date: Fri, 26 Jan 2018 14:55:20 +0100	[thread overview]
Message-ID: <1516974930-11713-2-git-send-email-jacopo+renesas@jmondi.org> (raw)
In-Reply-To: <1516974930-11713-1-git-send-email-jacopo+renesas@jmondi.org>

Add bindings documentation for Renesas Capture Engine Unit (CEU).

Signed-off-by: Jacopo Mondi <jacopo+renesas@jmondi.org>
Reviewed-by: Rob Herring <robh@kernel.org>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Acked-by: Hans Verkuil <hans.verkuil@cisco.com>
---
 .../devicetree/bindings/media/renesas,ceu.txt      | 81 ++++++++++++++++++++++
 1 file changed, 81 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/media/renesas,ceu.txt

diff --git a/Documentation/devicetree/bindings/media/renesas,ceu.txt b/Documentation/devicetree/bindings/media/renesas,ceu.txt
new file mode 100644
index 0000000..590ee27
--- /dev/null
+++ b/Documentation/devicetree/bindings/media/renesas,ceu.txt
@@ -0,0 +1,81 @@
+Renesas Capture Engine Unit (CEU)
+----------------------------------------------
+
+The Capture Engine Unit is the image capture interface found in the Renesas
+SH 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 "renesas,r7s72100-ceu" for CEU units found in RZ/A1-H
+  and RZ/A1-M 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:
+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: Active state of the HSYNC signal, 0/1 for LOW/HIGH respectively.
+  If property is not present, default is active high.
+- vsync-active: Active state of the VSYNC signal, 0/1 for LOW/HIGH respectively.
+  If property is not present, default is active high.
+
+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>;
+			};
+		};
+	};
+};
-- 
2.7.4

  reply	other threads:[~2018-01-26 13:55 UTC|newest]

Thread overview: 15+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-01-26 13:55 [PATCH v7 00/11] Renesas Capture Engine Unit (CEU) V4L2 driver Jacopo Mondi
2018-01-26 13:55 ` Jacopo Mondi [this message]
2018-01-26 13:55 ` [PATCH v7 02/11] include: media: Add Renesas CEU driver interface Jacopo Mondi
2018-01-26 13:55 ` [PATCH v7 03/11] media: platform: Add Renesas CEU driver Jacopo Mondi
2018-01-26 13:55 ` [PATCH v7 04/11] ARM: dts: r7s72100: Add Capture Engine Unit (CEU) Jacopo Mondi
2018-01-26 13:55 ` [PATCH v7 05/11] media: i2c: Copy ov772x soc_camera sensor driver Jacopo Mondi
2018-01-26 13:55 ` [PATCH v7 06/11] media: i2c: ov772x: Remove soc_camera dependencies Jacopo Mondi
2018-01-26 13:55 ` [PATCH v7 07/11] media: i2c: ov772x: Support frame interval handling Jacopo Mondi
2018-01-29 11:01   ` Laurent Pinchart
2018-01-30  9:47     ` jacopo mondi
2018-01-26 13:55 ` [PATCH v7 08/11] media: i2c: Copy tw9910 soc_camera sensor driver Jacopo Mondi
2018-01-26 13:55 ` [PATCH v7 09/11] media: i2c: tw9910: Remove soc_camera dependencies Jacopo Mondi
2018-01-26 13:55 ` [PATCH v7 10/11] arch: sh: migor: Use new renesas-ceu camera driver Jacopo Mondi
2018-01-26 13:55 ` [PATCH v7 11/11] media: i2c: ov7670: Fully set mbus frame fmt Jacopo Mondi
  -- strict thread matches above, loose matches on Subject: below --
2018-01-26 13:48 [PATCH v7 00/11] Renesas Capture Engine Unit (CEU) V4L2 driver Jacopo Mondi
2018-01-26 13:48 ` [PATCH v7 01/11] dt-bindings: media: Add Renesas CEU bindings Jacopo Mondi

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