linux-kernel - [PATCH v8 2/5] dt-bindings: media: Document Synopsys Designware HDMI RX

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Message-Id: <36ad6ab0cf3051efeb02508141e08efd56761018.1499701282.git.joabreu@synopsys.com>
Date:   Mon, 10 Jul 2017 16:46:52 +0100
From:   Jose Abreu <Jose.Abreu@...opsys.com>
To:     linux-media@...r.kernel.org, linux-kernel@...r.kernel.org
Cc:     Jose Abreu <Jose.Abreu@...opsys.com>,
        Carlos Palminha <CARLOS.PALMINHA@...opsys.com>,
        Rob Herring <robh+dt@...nel.org>,
        Mark Rutland <mark.rutland@....com>,
        Mauro Carvalho Chehab <mchehab@...nel.org>,
        Hans Verkuil <hans.verkuil@...co.com>,
        Sylwester Nawrocki <snawrocki@...nel.org>,
        devicetree@...r.kernel.org
Subject: [PATCH v8 2/5] dt-bindings: media: Document Synopsys Designware HDMI RX

Document the bindings for the Synopsys Designware HDMI RX.

Signed-off-by: Jose Abreu <joabreu@...opsys.com>
Cc: Carlos Palminha <palminha@...opsys.com>
Cc: Rob Herring <robh+dt@...nel.org>
Cc: Mark Rutland <mark.rutland@....com>
Cc: Mauro Carvalho Chehab <mchehab@...nel.org>
Cc: Hans Verkuil <hans.verkuil@...co.com>
Cc: Sylwester Nawrocki <snawrocki@...nel.org>
Cc: devicetree@...r.kernel.org

Changes from v7:
	- Remove SoC specific bindings (Rob)
Changes from v6:
	- Document which properties are required/optional (Sylwester)
	- Drop compatible string for SoC (Sylwester)
	- Reword edid-phandle property (Sylwester)
	- Typo fixes (Sylwester)
Changes from v4:
	- Use "cfg" instead of "cfg-clk" (Rob)
	- Change node names (Rob)
Changes from v3:
	- Document the new DT bindings suggested by Sylwester
Changes from v2:
	- Document edid-phandle property
---
 .../devicetree/bindings/media/snps,dw-hdmi-rx.txt  | 58 ++++++++++++++++++++++
 1 file changed, 58 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/media/snps,dw-hdmi-rx.txt

diff --git a/Documentation/devicetree/bindings/media/snps,dw-hdmi-rx.txt b/Documentation/devicetree/bindings/media/snps,dw-hdmi-rx.txt
new file mode 100644
index 0000000..1dc09c6
--- /dev/null
+++ b/Documentation/devicetree/bindings/media/snps,dw-hdmi-rx.txt
@@ -0,0 +1,58 @@
+Synopsys DesignWare HDMI RX Decoder
+===================================
+
+This document defines device tree properties for the Synopsys DesignWare HDMI
+RX Decoder (DWC HDMI RX).
+
+The properties bellow belong to the Synopsys DesignWare HDMI RX Decoder node.
+
+Required properties:
+
+- compatible: Shall be "snps,dw-hdmi-rx".
+- reg: Memory mapped base address and length of the DWC HDMI RX registers.
+- interrupts: Reference to the DWC HDMI RX interrupt and the HDMI 5V sense
+interrupt.
+- clocks: Reference to the config clock.
+- clock-names: Shall be "cfg".
+- #address-cells: Shall be 1.
+- #size-cells: Shall be 0.
+
+Optional properties:
+
+- edid-phandle: Reference to the EDID handler block; if this property is not
+specified it is assumed that EDID is handled by device described by parent
+node of the HDMI RX node. You should not specify this property if your HDMI RX
+controller does not have CEC.
+
+You also have to create a subnode for the PHY device. PHY node properties are
+as follows.
+
+Required properties:
+
+- compatible: Shall be "snps,dw-hdmi-phy-e405".
+- reg: Shall be the JTAG address of the PHY.
+- clocks: Reference to the config clock.
+- clock-names: Shall be "cfg".
+
+Example:
+
+hdmi_rx: hdmi-rx@0 {
+	compatible = "snps,dw-hdmi-rx";
+	reg = <0x0 0x10000>;
+	interrupts = <1 2>;
+	edid-phandle = <&dw_hdmi_edid>;
+
+	clocks = <&dw_hdmi_refclk>;
+	clock-names = "cfg";
+
+	#address-cells = <1>;
+	#size-cells = <0>;
+
+	hdmi-phy@fc {
+		compatible = "snps,dw-hdmi-phy-e405";
+		reg = <0xfc>;
+
+		clocks = <&dw_hdmi_refclk>;
+		clock-names = "cfg";
+	};
+};
-- 
1.9.1