Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752503AbdGGLIs (ORCPT ); Fri, 7 Jul 2017 07:08:48 -0400 Received: from us01smtprelay-2.synopsys.com ([198.182.47.9]:52533 "EHLO smtprelay.synopsys.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752446AbdGGLIp (ORCPT ); Fri, 7 Jul 2017 07:08:45 -0400 From: Jose Abreu To: linux-media@vger.kernel.org, linux-kernel@vger.kernel.org Cc: Jose Abreu , Carlos Palminha , Rob Herring , Mark Rutland , Mauro Carvalho Chehab , Hans Verkuil , Sylwester Nawrocki , devicetree@vger.kernel.org Subject: [PATCH v7 3/6] dt-bindings: media: Document Synopsys Designware HDMI RX Date: Fri, 7 Jul 2017 12:08:06 +0100 Message-Id: <1d0479599d90d9e7eb1360237d3097373959cee0.1499425271.git.joabreu@synopsys.com> X-Mailer: git-send-email 1.9.1 In-Reply-To: References: In-Reply-To: References: Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 3443 Lines: 111 Document the bindings for the Synopsys Designware HDMI RX. Signed-off-by: Jose Abreu Cc: Carlos Palminha Cc: Rob Herring Cc: Mark Rutland Cc: Mauro Carvalho Chehab Cc: Hans Verkuil Cc: Sylwester Nawrocki Cc: devicetree@vger.kernel.org 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 | 74 ++++++++++++++++++++++ 1 file changed, 74 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..6c49aae --- /dev/null +++ b/Documentation/devicetree/bindings/media/snps,dw-hdmi-rx.txt @@ -0,0 +1,74 @@ +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. + +The properties bellow belong to the Synopsys DesignWare HDMI RX Decoder node. + +- compatible: Required property. Shall be "snps,dw-hdmi-rx". + +- reg: Required property. Memory mapped base address and length of the DWC +HDMI RX registers. + +- interrupts: Required property. Reference to the DWC HDMI RX interrupt and +HDMI 5V sense interrupt. + +- clocks: Required property. Phandle to the config clock block. + +- clock-names: Required property. Shall be "cfg". + +- edid-phandle: Optional proerty. phandle 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. + +- #address-cells: Required property. Shall be 1. + +- #size-cells: Required property. Shall be 0. + +You also have to create a subnode for the PHY device. PHY node properties are +as follows. + +- compatible: Required property. Shall be "snps,dw-hdmi-phy-e405". + +- reg: Required property. Shall be JTAG address of the PHY. + +- clocks: Required property. Phandle for cfg clock. + +- clock-names: Required property. 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 = "..."; + #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