From patchwork Wed May 5 10:02:17 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Marek Vasut X-Patchwork-Id: 431331 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-18.8 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID, DKIM_VALID_AU, HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_CR_TRAILER, INCLUDES_PATCH, MAILING_LIST_MULTI, SPF_HELO_NONE, SPF_PASS, URIBL_BLOCKED, USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id A0AA2C433B4 for ; Wed, 5 May 2021 10:03:22 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 69CD7611EE for ; Wed, 5 May 2021 10:03:22 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232397AbhEEKER (ORCPT ); Wed, 5 May 2021 06:04:17 -0400 Received: from phobos.denx.de ([85.214.62.61]:52940 "EHLO phobos.denx.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231750AbhEEKEQ (ORCPT ); Wed, 5 May 2021 06:04:16 -0400 Received: from tr.lan (ip-89-176-112-137.net.upcbroadband.cz [89.176.112.137]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits)) (No client certificate requested) (Authenticated sender: marex@denx.de) by phobos.denx.de (Postfix) with ESMTPSA id 5C9EA82A89; Wed, 5 May 2021 12:03:17 +0200 (CEST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=denx.de; s=phobos-20191101; t=1620208997; bh=3zRlsEWjrcNIuCNfYrV3hRYLZJizMi4v1CIgzLcRvCQ=; h=From:To:Cc:Subject:Date:From; b=zsjcHleDFWwFOT86cpA1b8sWDgwW5IFRvUISxe+2xWSJQ5qq2ceJGXdc8ovg0WhA6 Lqx2rwll+mzdH2srWpDFtJs/L9+xssscBzh1umo7ZdKPnZvSkoILzqC+fXb6SC8WxE iRqFXX3mGgRvIDzcTTejIProVxz8aO58fNezvZVE5ljxgaGiVJybMjURBglyF9xRV/ Mre0r3WRaNsV0BWHhYzw4/uOPlHx/Q5NPHhia8fN805CLWNg5tDZqAvLNnM5BOAQ93 aMAtH0mSFUB3VucPhdJwVcSGQvRgxOyrfkJ9J46hYSmHy3i8QP4rWd4Fs/blH8F1C4 +ZWAC8mRj0NMA== From: Marek Vasut To: dri-devel@lists.freedesktop.org Cc: ch@denx.de, Marek Vasut , Douglas Anderson , Jagan Teki , Laurent Pinchart , Linus Walleij , Rob Herring , Sam Ravnborg , Stephen Boyd , devicetree@vger.kernel.org Subject: [PATCH V3 1/2] dt-bindings: drm/bridge: ti-sn65dsi83: Add TI SN65DSI83 and SN65DSI84 bindings Date: Wed, 5 May 2021 12:02:17 +0200 Message-Id: <20210505100218.108024-1-marex@denx.de> X-Mailer: git-send-email 2.30.2 MIME-Version: 1.0 X-Virus-Scanned: clamav-milter 0.102.4 at phobos.denx.de X-Virus-Status: Clean Precedence: bulk List-ID: X-Mailing-List: devicetree@vger.kernel.org Add DT binding document for TI SN65DSI83 and SN65DSI84 DSI to LVDS bridge. Signed-off-by: Marek Vasut Cc: Douglas Anderson Cc: Jagan Teki Cc: Laurent Pinchart Cc: Linus Walleij Cc: Rob Herring Cc: Sam Ravnborg Cc: Stephen Boyd Cc: devicetree@vger.kernel.org To: dri-devel@lists.freedesktop.org --- V2: Add compatible string for SN65DSI84, since this is now tested on it V3: - Add 0x2c as valid i2c address - Switch to schemas/graph.yaml - Constraint data-lanes to <1>, <1 2>, <1 2 3>, <1 2 3 4> only - Indent example by 4 spaces - Handle dual-link LVDS with two ports and describe the second DSI channel-B port as well. Based on the register defaults of DSI83 and DSI84, it is likely that the LVDS-channel-B and DSI-channel-B hardware is present in all the chips, so just reuse port@0 and 2 for DSI83, port@0,2,3 for DSI84 and all of 0,1,2,3 for DSI85 when that is supported --- .../bindings/display/bridge/ti,sn65dsi83.yaml | 171 ++++++++++++++++++ 1 file changed, 171 insertions(+) create mode 100644 Documentation/devicetree/bindings/display/bridge/ti,sn65dsi83.yaml diff --git a/Documentation/devicetree/bindings/display/bridge/ti,sn65dsi83.yaml b/Documentation/devicetree/bindings/display/bridge/ti,sn65dsi83.yaml new file mode 100644 index 000000000000..4e7df92446a9 --- /dev/null +++ b/Documentation/devicetree/bindings/display/bridge/ti,sn65dsi83.yaml @@ -0,0 +1,171 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/display/bridge/ti,sn65dsi83.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: SN65DSI83 and SN65DSI84 DSI to LVDS bridge chip + +maintainers: + - Marek Vasut + +description: | + Texas Instruments SN65DSI83 1x Single-link MIPI DSI + to 1x Single-link LVDS + https://www.ti.com/lit/gpn/sn65dsi83 + Texas Instruments SN65DSI84 1x Single-link MIPI DSI + to 1x Dual-link or 2x Single-link LVDS + https://www.ti.com/lit/gpn/sn65dsi84 + +properties: + compatible: + oneOf: + - const: ti,sn65dsi83 + - const: ti,sn65dsi84 + + reg: + oneOf: + - const: 0x2c + - const: 0x2d + + enable-gpios: + maxItems: 1 + description: GPIO specifier for bridge_en pin (active high). + + ports: + $ref: /schemas/graph.yaml#/properties/ports + + properties: + port@0: + $ref: /schemas/graph.yaml#/properties/port + description: Video port for MIPI DSI Channel-A input + + properties: + endpoint: + $ref: /schemas/graph.yaml#/$defs/endpoint-base + unevaluatedProperties: false + + properties: + data-lanes: + description: array of physical DSI data lane indexes. + minItems: 1 + maxItems: 4 + items: + - const: 1 + - const: 2 + - const: 3 + - const: 4 + + port@1: + $ref: /schemas/graph.yaml#/properties/port + description: Video port for MIPI DSI Channel-B input + + properties: + endpoint: + $ref: /schemas/graph.yaml#/$defs/endpoint-base + unevaluatedProperties: false + + properties: + data-lanes: + description: array of physical DSI data lane indexes. + minItems: 1 + maxItems: 4 + items: + - const: 1 + - const: 2 + - const: 3 + - const: 4 + + port@2: + $ref: /schemas/graph.yaml#/properties/port + description: Video port for LVDS Channel-A output (panel or bridge). + + properties: + endpoint: + $ref: /schemas/graph.yaml#/$defs/endpoint-base + description: LVDS Channel-A output endpoint + unevaluatedProperties: false + + port@3: + $ref: /schemas/graph.yaml#/properties/port + description: Video port for LVDS Channel-A output (panel or bridge). + + properties: + endpoint: + $ref: /schemas/graph.yaml#/$defs/endpoint-base + description: LVDS Channel-B output endpoint + unevaluatedProperties: false + + required: + - port@0 + - port@2 + +required: + - compatible + - reg + - enable-gpios + - ports + +allOf: + - if: + properties: + compatible: + contains: + const: ti,sn65dsi83 + then: + properties: + ports: + properties: + port@1: false + port@3: false + + - if: + properties: + compatible: + contains: + const: ti,sn65dsi84 + then: + properties: + ports: + properties: + port@1: false + +additionalProperties: false + +examples: + - | + #include + + i2c { + #address-cells = <1>; + #size-cells = <0>; + + bridge@2d { + compatible = "ti,sn65dsi83"; + reg = <0x2d>; + + enable-gpios = <&gpio2 1 GPIO_ACTIVE_HIGH>; + + ports { + #address-cells = <1>; + #size-cells = <0>; + + port@0 { + reg = <0>; + + endpoint { + remote-endpoint = <&dsi0_out>; + data-lanes = <1 2 3 4>; + }; + }; + + port@2 { + reg = <2>; + + endpoint { + remote-endpoint = <&panel_in_lvds>; + }; + }; + }; + }; + };