linux-kernel - [V3, 3/4] Documentation: dt-bindings: media: Document bindings for DW MIPI CSI-2 Host

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Date:   Fri, 19 Oct 2018 14:52:25 +0200
From:   Luis Oliveira <luis.oliveira@...opsys.com>
To:     linux-media@...r.kernel.org, linux-kernel@...r.kernel.org
Cc:     joao.pinto@...opsys.com, festevam@...il.com,
        Luis Oliveira <luis.oliveira@...opsys.com>,
        Luis Oliveira <luis.oliveira@...opsys.com>,
        Mauro Carvalho Chehab <mchehab@...nel.org>,
        Rob Herring <robh+dt@...nel.org>,
        Mark Rutland <mark.rutland@....com>,
        Hans Verkuil <hans.verkuil@...co.com>,
        Laurent Pinchart <laurent.pinchart+renesas@...asonboard.com>,
        Arnd Bergmann <arnd@...db.de>,
        Geert Uytterhoeven <geert+renesas@...der.be>,
        Neil Armstrong <narmstrong@...libre.com>,
        Philipp Zabel <p.zabel@...gutronix.de>,
        Keiichi Watanabe <keiichiw@...omium.org>,
        Kate Stewart <kstewart@...uxfoundation.org>,
        Todor Tomov <todor.tomov@...aro.org>,
        devicetree@...r.kernel.org
Subject: [V3, 3/4] Documentation: dt-bindings: media: Document bindings for DW MIPI CSI-2 Host

Add bindings for Synopsys DesignWare MIPI CSI-2 host.

Signed-off-by: Luis Oliveira <lolivei@...opsys.com>
---
Changelog
v2-V3
- removed IPI settings

 .../devicetree/bindings/media/snps,dw-csi-plat.txt | 52 ++++++++++++++++++++++
 1 file changed, 52 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/media/snps,dw-csi-plat.txt

diff --git a/Documentation/devicetree/bindings/media/snps,dw-csi-plat.txt b/Documentation/devicetree/bindings/media/snps,dw-csi-plat.txt
new file mode 100644
index 0000000..be3da05
--- /dev/null
+++ b/Documentation/devicetree/bindings/media/snps,dw-csi-plat.txt
@@ -0,0 +1,52 @@
+Synopsys DesignWare CSI-2 Host controller
+
+Description
+-----------
+
+This HW block is used to receive image coming from an MIPI CSI-2 compatible
+camera.
+
+Required properties:
+- compatible: shall be "snps,dw-csi-plat"
+- reg			: physical base address and size of the device memory mapped
+  registers;
+- interrupts		: CSI-2 Host interrupt
+- snps,output-type	: Core output to be used (IPI-> 0 or IDI->1 or BOTH->2)
+			  These  values choose which of the Core outputs will be used,
+			  it can be Image Data Interface or Image Pixel Interface.
+- phys			: List of one PHY specifier (as defined in
+			  Documentation/devicetree/bindings/phy/phy-bindings.txt).
+			  This PHY is a MIPI DPHY working in RX mode.
+- resets		: Reference to a reset controller (optional)
+
+The per-board settings:
+ - port sub-node describing a single endpoint connected to the camera as
+   described in video-interfaces.txt[1].
+
+Example:
+
+	csi2_1: csi2@...0 {
+		compatible = "snps,dw-csi-plat";
+		#address-cells = <1>;
+		#size-cells = <0>;
+		reg = < 0x03000 0x7FF>;
+		interrupts = <2>;
+		output-type = <2>;
+		resets = <&dw_rst 1>;
+		phys = <&mipi_dphy_rx1 0>;
+		phy-names = "csi2-dphy";
+
+		/* CSI-2 per-board settings */
+		port@1 {
+			reg = <1>;
+			csi1_ep1: endpoint {
+				remote-endpoint = <&camera_1>;
+				data-lanes = <1 2>;
+			};
+		};
+		port@2 {
+			csi1_ep2: endpoint {
+				remote-endpoint = <&vif1_ep>;
+			};
+		};
+	};
--
2.7.4