Thread (5 messages) 5 messages, 2 authors, 2017-07-07
STALE3293d
Revisions (10)
  1. v1 [diff vs current]
  2. v2 [diff vs current]
  3. v3 [diff vs current]
  4. v4 [diff vs current]
  5. v5 [diff vs current]
  6. v6 current
  7. v7 [diff vs current]
  8. v8 [diff vs current]
  9. v9 [diff vs current]
  10. v10 [diff vs current]

[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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