From patchwork Fri Apr 27 09:39:41 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Sandeep Panda X-Patchwork-Id: 10370559 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork.web.codeaurora.org (Postfix) with ESMTP id E2DD7602DC for ; Sun, 29 Apr 2018 13:55:14 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id CDAE728B49 for ; Sun, 29 Apr 2018 13:55:14 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id C239A28B4F; Sun, 29 Apr 2018 13:55:14 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-5.1 required=2.0 tests=BAYES_00,DKIM_SIGNED, MAILING_LIST_MULTI,RCVD_IN_DNSWL_MED,T_DKIM_INVALID autolearn=ham version=3.3.1 Received: from gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) (using TLSv1.2 with cipher DHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.wl.linuxfoundation.org (Postfix) with ESMTPS id 446B328B49 for ; Sun, 29 Apr 2018 13:55:14 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 1AA4B6E1D8; Sun, 29 Apr 2018 13:55:05 +0000 (UTC) X-Original-To: dri-devel@lists.freedesktop.org Delivered-To: dri-devel@lists.freedesktop.org Received: from smtp.codeaurora.org (smtp.codeaurora.org [198.145.29.96]) by gabe.freedesktop.org (Postfix) with ESMTPS id 0DDE56E8A3; Fri, 27 Apr 2018 09:40:13 +0000 (UTC) Received: by smtp.codeaurora.org (Postfix, from userid 1000) id E24DA60AE0; Fri, 27 Apr 2018 09:40:12 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=codeaurora.org; s=default; t=1524822012; bh=2V0wkYbmtBQkCSycdDHBX1d3pt/45cfYEeSeM/tlyBE=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=DjzxpvVe5DGk1gR0W61P7+J8XPvcj3hEwpWWRveMsGzJM3WaaeZGMDO4qqTkLQKhl G3wJZBPEwj1H26G6FcCGJIp/ZvaVQrA/fQ0CTXwsztt4WnJIVqYGYeW4CyeJ2498Cs hjNthoZBqj/pJuLQN9NQyoOAO0tS8nCmNIKREIM8= Received: from spanda-linux.qualcomm.com (blr-c-bdr-fw-01_globalnat_allzones-outside.qualcomm.com [103.229.19.19]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-SHA256 (128/128 bits)) (No client certificate requested) (Authenticated sender: spanda@smtp.codeaurora.org) by smtp.codeaurora.org (Postfix) with ESMTPSA id D67216071A; Fri, 27 Apr 2018 09:40:06 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=codeaurora.org; s=default; t=1524822011; bh=2V0wkYbmtBQkCSycdDHBX1d3pt/45cfYEeSeM/tlyBE=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=g8onmls/FW9uWy9yl61j9slM9M7xB1RwnWvaKdpYPJeEDyQO0M8cGUI3cXILNoAUM h4r3G87Ezrce9nEQ09czGPBvKCP3t2cg3oKg1/zhnjf5hymqAVZGL6od7FII7nzQ29 vAkc8MbyB606pL9Iy3qKeBs0f5owYEQFAHKf4wRI= DMARC-Filter: OpenDMARC Filter v1.3.2 smtp.codeaurora.org D67216071A Authentication-Results: pdx-caf-mail.web.codeaurora.org; dmarc=none (p=none dis=none) header.from=codeaurora.org Authentication-Results: pdx-caf-mail.web.codeaurora.org; spf=none smtp.mailfrom=spanda@codeaurora.org From: Sandeep Panda To: dri-devel@lists.freedesktop.org, linux-arm-msm@vger.kernel.org, freedreno@lists.freedesktop.org, devicetree@vger.kernel.org Subject: [PATCH v4 2/3] dt-bindings: drm/bridge: Document sn65dsi86 bridge bindings Date: Fri, 27 Apr 2018 15:09:41 +0530 Message-Id: <1524821982-2778-3-git-send-email-spanda@codeaurora.org> X-Mailer: git-send-email 1.9.1 In-Reply-To: <1524821982-2778-1-git-send-email-spanda@codeaurora.org> References: <1524821982-2778-1-git-send-email-spanda@codeaurora.org> X-Mailman-Approved-At: Sun, 29 Apr 2018 13:54:17 +0000 X-BeenThere: dri-devel@lists.freedesktop.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: Direct Rendering Infrastructure - Development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: ryadav@codeaurora.org, Sandeep Panda , abhinavk@codeaurora.org, hoegsberg@chromium.org, chandanu@codeaurora.org MIME-Version: 1.0 Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" X-Virus-Scanned: ClamAV using ClamSMTP Document the bindings used for the sn65dsi86 DSI to eDP bridge. Changes in v1: - Rephrase the dt-binding descriptions to be more inline with existing bindings (Andrzej Hajda). - Add missing dt-binding that are parsed by corresponding driver (Andrzej Hajda). Changes in v2: - Remove edp panel specific dt-binding entries. Only keep bridge specific entries (Sean Paul). - Remove custom-modes dt entry since its usage is removed from driver also (Sean Paul). - Remove is-pluggable dt entry since this will not be needed anymore (Sean Paul). Changes in v3: - Remove irq-gpio dt entry and instead populate is an interrupt property (Rob Herring). Changes in v4: - Add link to bridge chip datasheet (Stephen Boyd) - Add vpll and vcc regulator supply bindings (Stephen Boyd) - Add ref clk optional dt binding (Stephen Boyd) - Add gpio-controller optional dt binding (Stephen Boyd) Signed-off-by: Sandeep Panda --- .../bindings/display/bridge/ti,sn65dsi86.txt | 76 ++++++++++++++++++++++ 1 file changed, 76 insertions(+) create mode 100644 Documentation/devicetree/bindings/display/bridge/ti,sn65dsi86.txt diff --git a/Documentation/devicetree/bindings/display/bridge/ti,sn65dsi86.txt b/Documentation/devicetree/bindings/display/bridge/ti,sn65dsi86.txt new file mode 100644 index 0000000..0d042ce --- /dev/null +++ b/Documentation/devicetree/bindings/display/bridge/ti,sn65dsi86.txt @@ -0,0 +1,76 @@ +SN65DSI86 DSI to eDP bridge chip +-------------------------------- + +This is the binding for Texas Instruments SN65DSI86 bridge. +http://www.ti.com/general/docs/lit/getliterature.tsp?genericPartNumber=sn65dsi86&fileType=pdf + +Required properties: +- compatible: Must be "ti,sn65dsi86" +- reg: i2c address of the chip, 0x2d as per datasheet +- enable-gpios: OF device-tree gpio specification for bridge_en pin + +- vccio-supply: A 1.8V supply that powers up the digital IOs. +- vpll-supply: A 1.8V supply that powers up the displayport PLL. +- vcca-supply: A 1.2V supply that powers up the analog circuits. +- vcc-supply: A 1.2V supply that powers up the digital core. + +Optional properties: +- interrupts: Specifier for the SN65DSI86 interrupt line. +- hpd-gpios: OF device-tree gpio specifications for HPD pin. + +- refclk-freq-khz: Value specifying the frequency of reference clock in KHz unit. + +- gpio-controller: Marks the device has a GPIO controller. +- #gpio-cells: Number of GPIO cells. Refer to binding document "gpio/gpio.txt" +- #pwm-cells : Number of cells used to specify a PWM. See pwm.txt in this directory + for a description of the cell formats. + +Required nodes: + +This device has two video ports. Their connections are modelled using the +OF graph bindings specified in Documentation/devicetree/bindings/graph.txt. + +- Video port 0 for DSI input +- Video port 1 for eDP output + +Example +------- + +edp-bridge@2d { + compatible = "ti,sn65dsi86"; + #address-cells = <1>; + #size-cells = <0>; + reg = <0x2d>; + + enable-gpios = <&msmgpio 33 GPIO_ACTIVE_HIGH>; + interrupt-parent = <&gpio3>; + interrupts = <4 IRQ_TYPE_EDGE_FALLING>; + + vccio-supply = <&pm8916_l17>; + vcca-supply = <&pm8916_l6>; + vpll-supply = <&pm8916_l17>; + vcc-supply = <&pm8916_l6>; + + refclk-freq-khz = <19200>; + + ports { + #address-cells = <1>; + #size-cells = <0>; + + port@0 { + reg = <0>; + + edp_bridge_in: endpoint { + remote-endpoint = <&dsi_out>; + }; + }; + + port@1 { + reg = <1>; + + edp_bridge_out: endpoint { + remote-endpoint = <&edp_panel_in>; + }; + }; + }; +}