[PATCH v6 4/4] dt-bindings: media: Document Synopsys Designware HDMI RX
From: Jose Abreu <hidden>
Date: 2017-07-04 14:12:51
Also in:
linux-media, lkml
Subsystem:
media input infrastructure (v4l/dvb), open firmware and flattened device tree bindings, the rest · Maintainers:
Mauro Carvalho Chehab, Rob Herring, Krzysztof Kozlowski, Conor Dooley, Linus Torvalds
Document the bindings for the Synopsys Designware HDMI RX. Signed-off-by: Jose Abreu <joabreu-HKixBCOQz3hWk0Htik3J/w@public.gmane.org> Cc: Carlos Palminha <palminha-HKixBCOQz3hWk0Htik3J/w@public.gmane.org> Cc: Rob Herring <redacted> Cc: Mark Rutland <redacted> Cc: Mauro Carvalho Chehab <redacted> Cc: Hans Verkuil <redacted> Cc: Sylwester Nawrocki <redacted> Cc: devicetree-u79uwXL29TY76Z2rM5mHXA@public.gmane.org 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 | 70 ++++++++++++++++++++++ 1 file changed, 70 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..449b8a2
--- /dev/null
+++ b/Documentation/devicetree/bindings/media/snps,dw-hdmi-rx.txt@@ -0,0 +1,70 @@ +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. + +- 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 5v sense interrupt. + +- clocks: Phandle to the config clock block. + +- clock-names: Shall be "cfg". + +- edid-phandle: phandle to the EDID handler block. + +- #address-cells: Shall be 1. + +- #size-cells: Shall be 0. + +You also have to create a subnode for phy driver. Phy properties are as follows. + +- compatible: Shall be "snps,dw-hdmi-phy-e405". + +- reg: Shall be JTAG address of phy. + +- clocks: Phandle for cfg clock. + +- clock-names:Shall be "cfg". + +A sample binding is now provided. The compatible string is for a SoC which has +has a Synopsys DesignWare HDMI RX decoder inside. + +Example: + +dw_hdmi_soc: dw-hdmi-soc@0 { + compatible = "snps,dw-hdmi-soc"; + reg = <0x11c00 0x1000>; /* EDIDs */ + #address-cells = <1>; + #size-cells = <1>; + ranges; + + hdmi-rx@0 { + compatible = "snps,dw-hdmi-rx"; + reg = <0x0 0x10000>; + interrupts = <1 2>; + edid-phandle = <&dw_hdmi_soc>; + + 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
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