From patchwork Tue Apr 19 14:39:57 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Marek Vasut X-Patchwork-Id: 12818643 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 9E7BFC433EF for ; Tue, 19 Apr 2022 14:40:22 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id D72C210EEA6; Tue, 19 Apr 2022 14:40:21 +0000 (UTC) Received: from phobos.denx.de (phobos.denx.de [IPv6:2a01:238:438b:c500:173d:9f52:ddab:ee01]) by gabe.freedesktop.org (Postfix) with ESMTPS id D66F110EEA7 for ; Tue, 19 Apr 2022 14:40:20 +0000 (UTC) Received: from tr.lan (ip-86-49-12-201.net.upcbroadband.cz [86.49.12.201]) (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 D242F83CF3; Tue, 19 Apr 2022 16:40:17 +0200 (CEST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=denx.de; s=phobos-20191101; t=1650379218; bh=hDwfhY/HpPxbc/begCdgWtM53seWsGCI4w+qpBFpdVk=; h=From:To:Cc:Subject:Date:From; b=Uj9qcmf/ELviyuYREIY0CFcTCn77IAd/IPOIkP20AFmpGLbjB855SViux029w0csd 7mbjpSbRCdeNHb2j2DQ/rFkEXArXrPACgrt9bzeE3ROINlE1nowUBagKGzsrel2Jgm e3eJCpZ2gqC7ka+qyWwp3Hh7UBesrjKs9G/Dd5O76J+0dk7jWscRuf+l9F8qHr5Lpe hXz/pS2FcSSXwWmcz9gS5N6bYFk8/E+L+09BNtwg94P3qtbPYU3cBb9UijWd/9CCbd GslUvl+EGr+rBI/8747KnedN5F9P7zR7O+AMvGibJc96zfgJLPCjCSj2aQqqRkJGu1 De/oC6l0eSP2g== From: Marek Vasut To: dri-devel@lists.freedesktop.org Subject: [PATCH v2 1/2] dt-bindings: display: bridge: lt9211: Add Lontium LT9211 bridge driver Date: Tue, 19 Apr 2022 16:39:57 +0200 Message-Id: <20220419143958.94873-1-marex@denx.de> X-Mailer: git-send-email 2.35.1 MIME-Version: 1.0 X-Virus-Scanned: clamav-milter 0.103.5 at phobos.denx.de X-Virus-Status: Clean X-BeenThere: dri-devel@lists.freedesktop.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Direct Rendering Infrastructure - Development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Marek Vasut , devicetree@vger.kernel.org, robert.foss@linaro.org, Rob Herring , Maxime Ripard , Thomas Zimmermann , Sam Ravnborg , Laurent Pinchart Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" Add bindings for Lontium LT9211 Single/Dual-Link DSI/LVDS or Single DPI to Single-link/Dual-Link DSI/LVDS or Single DPI bridge. This chip is highly capable at converting formats, but sadly it is also highly undocumented. Reviewed-by: Rob Herring Signed-off-by: Marek Vasut Cc: Laurent Pinchart Cc: Lucas Stach Cc: Maxime Ripard Cc: Rob Herring Cc: Robert Foss Cc: Sam Ravnborg Cc: Thomas Zimmermann Cc: devicetree@vger.kernel.org To: dri-devel@lists.freedesktop.org --- V2: - Fix up s@i2c10@i2c@ in binding example - Add RB from Rob --- .../display/bridge/lontium,lt9211.yaml | 117 ++++++++++++++++++ 1 file changed, 117 insertions(+) create mode 100644 Documentation/devicetree/bindings/display/bridge/lontium,lt9211.yaml diff --git a/Documentation/devicetree/bindings/display/bridge/lontium,lt9211.yaml b/Documentation/devicetree/bindings/display/bridge/lontium,lt9211.yaml new file mode 100644 index 0000000000000..9a6e9b25d14a9 --- /dev/null +++ b/Documentation/devicetree/bindings/display/bridge/lontium,lt9211.yaml @@ -0,0 +1,117 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/display/bridge/lontium,lt9211.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Lontium LT9211 DSI/LVDS/DPI to DSI/LVDS/DPI bridge. + +maintainers: + - Marek Vasut + +description: | + The LT9211 are bridge devices which convert Single/Dual-Link DSI/LVDS + or Single DPI to Single/Dual-Link DSI/LVDS or Single DPI. + +properties: + compatible: + enum: + - lontium,lt9211 + + reg: + maxItems: 1 + + interrupts: + maxItems: 1 + + reset-gpios: + maxItems: 1 + description: GPIO connected to active high RESET pin. + + vccio-supply: + description: Regulator for 1.8V IO power. + + ports: + $ref: /schemas/graph.yaml#/properties/ports + + properties: + port@0: + $ref: /schemas/graph.yaml#/properties/port + description: + Primary MIPI DSI port-1 for MIPI input or + LVDS port-1 for LVDS input or DPI input. + + port@1: + $ref: /schemas/graph.yaml#/properties/port + description: + Additional MIPI port-2 for MIPI input or LVDS port-2 + for LVDS input. Used in combination with primary + port-1 to drive higher resolution displays + + port@2: + $ref: /schemas/graph.yaml#/properties/port + description: + Primary MIPI DSI port-1 for MIPI output or + LVDS port-1 for LVDS output or DPI output. + + port@3: + $ref: /schemas/graph.yaml#/properties/port + description: + Additional MIPI port-2 for MIPI output or LVDS port-2 + for LVDS output. Used in combination with primary + port-1 to drive higher resolution displays. + + required: + - port@0 + - port@2 + +required: + - compatible + - reg + - vccio-supply + - ports + +additionalProperties: false + +examples: + - | + #include + #include + + i2c { + #address-cells = <1>; + #size-cells = <0>; + + hdmi-bridge@3b { + compatible = "lontium,lt9211"; + reg = <0x3b>; + + reset-gpios = <&tlmm 128 GPIO_ACTIVE_HIGH>; + interrupts-extended = <&tlmm 84 IRQ_TYPE_EDGE_FALLING>; + + vccio-supply = <<9211_1v8>; + + ports { + #address-cells = <1>; + #size-cells = <0>; + + port@0 { + reg = <0>; + + endpoint { + remote-endpoint = <&dsi0_out>; + }; + }; + + port@2 { + reg = <2>; + + endpoint { + remote-endpoint = <&panel_in_lvds>; + }; + }; + }; + }; + }; + +...