linux-kernel - [PATCH v3 4/4] dt-bindings: media: Document Synopsys Designware HDMI RX

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Date:   Fri, 16 Jun 2017 17:38:33 +0100
From:   Jose Abreu <Jose.Abreu@...opsys.com>
To:     linux-media@...r.kernel.org, linux-kernel@...r.kernel.org,
        devicetree@...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>
Subject: [PATCH v3 4/4] 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>

Changes from v2:
	- Document edid-phandle property
---
 .../devicetree/bindings/media/snps,dw-hdmi-rx.txt  | 45 ++++++++++++++++++++++
 1 file changed, 45 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..d30cc1e
--- /dev/null
+++ b/Documentation/devicetree/bindings/media/snps,dw-hdmi-rx.txt
@@ -0,0 +1,45 @@
+Synopsys DesignWare HDMI RX Decoder
+===================================
+
+This document defines device tree properties for the Synopsys DesignWare HDMI
+RX Decoder (DWC HDMI RX). It doesn't constitute a device tree binding
+specification by itself but is meant to be referenced by platform-specific
+device tree bindings.
+
+When referenced from platform device tree bindings the properties defined in
+this document are defined as follows.
+
+- reg: Memory mapped base address and length of the DWC HDMI RX registers.
+
+- interrupts: Reference to the DWC HDMI RX interrupt and 5v sense interrupt.
+
+- snps,hdmi-phy-jtag-addr: JTAG address of the phy to be used.
+
+- snps,hdmi-phy-version: Version of the phy to be used.
+
+- snps,hdmi-phy-cfg-clk: Value of the cfg clk that is delivered to phy.
+
+- snps,hdmi-phy-driver: *Exact* name of the phy driver to be used.
+
+- snps,hdmi-ctl-cfg-clk: Value of the cfg clk that is delivered to the
+controller.
+
+- edid-phandle: phandle to the EDID driver. It can be, for example, the main
+wrapper driver.
+
+A sample binding is now provided. The compatible string is for a wrapper driver
+which then instantiates the Synopsys Designware HDMI RX decoder driver.
+
+Example:
+
+dw_hdmi_wrapper: dw-hdmi-wrapper@0 {
+	compatible = "snps,dw-hdmi-rx-wrapper";
+	reg = <0x0 0x10000>; /* controller regbank */
+	interrupts = <1 3>; /* controller interrupt + 5v sense interrupt */
+	snps,hdmi-phy-driver = "dw-hdmi-phy-e405";
+	snps,hdmi-phy-version = <405>;
+	snps,hdmi-phy-cfg-clk = <25>; /* MHz */
+	snps,hdmi-ctl-cfg-clk = <25>; /* MHz */
+	snps,hdmi-phy-jtag-addr = /bits/ 8 <0xfc>;
+	edid-phandle = <&dw_hdmi_wrapper>;
+};
-- 
1.9.1