From patchwork Tue Apr 26 19:36:44 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Marek Vasut X-Patchwork-Id: 12827868 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 BABD4C433F5 for ; Tue, 26 Apr 2022 19:37:09 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 2BB9F10E588; Tue, 26 Apr 2022 19:37:05 +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 1216E10E585 for ; Tue, 26 Apr 2022 19:37:02 +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 E7A1383B63; Tue, 26 Apr 2022 21:36:59 +0200 (CEST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=denx.de; s=phobos-20191101; t=1651001820; bh=DLpyodc0IH5QXZ+/4a9WOF+KrLBrMkntojqAv7H1l4U=; h=From:To:Cc:Subject:Date:From; b=np+jDBWg6xcMeYLovDbP43SdwZRF0TO57DQhrrqoa/hrVeUcFyKplGc1o7WaLBjpg ICZ9NbE9T4cTT4fvm54GSB+dtH9SFrnKXA/ot+2o3EtcsHOYZPdAw0zT5BqaIWrp7n TSzEHTb12VJMJcI9UwVfME3ucHu1qn4BcjLl2EB9ZHjSC6NPRL1P2FrEQ3YZSkS9LL 9Y57xTvG7ACTGuwmdcv6L97vJRxMVrrJtj7OgxNVFTOnPghH+inIyARhcUxtkY1Y7T 89g8RWWAylc2HlVZtgKbZNQbClGsrkoEZlOxac9qENoYag71CvutJontyEfOgS2Es0 YQCDPHn43jlkQ== From: Marek Vasut To: dri-devel@lists.freedesktop.org Subject: [PATCH v4 1/2] dt-bindings: display: bridge: ldb: Implement simple Freescale i.MX8MP LDB bridge Date: Tue, 26 Apr 2022 21:36:44 +0200 Message-Id: <20220426193645.244792-1-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, Peng Fan , robert.foss@linaro.org, Rob Herring , Maxime Ripard , Thomas Zimmermann , Sam Ravnborg , Robby Cai , Laurent Pinchart Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" The i.MX8MP contains two syscon registers which are responsible for configuring the on-SoC DPI-to-LVDS serializer. Add DT binding which represents this serializer as a bridge. Acked-by: Sam Ravnborg Signed-off-by: Marek Vasut Cc: Laurent Pinchart Cc: Lucas Stach Cc: Maxime Ripard Cc: Peng Fan Cc: Rob Herring Cc: Robby Cai Cc: Robert Foss Cc: Sam Ravnborg Cc: Thomas Zimmermann Cc: devicetree@vger.kernel.org To: dri-devel@lists.freedesktop.org --- V2: - Consistently use fsl,imx8mp-ldb as compatible - Drop items: from compatible: - Replace minItems with maxItems in clocks: - Drop quotes from clock-names const: ldb - Rename syscon to fsl,syscon - Use generic name of ldb-lvds in example V3: - Add AB from Sam - Consistently use MX8MP V4: - Rename to fsl-ldb all over the place - Put the LDB node under media block controller in the example --- .../bindings/display/bridge/fsl,ldb.yaml | 92 +++++++++++++++++++ 1 file changed, 92 insertions(+) create mode 100644 Documentation/devicetree/bindings/display/bridge/fsl,ldb.yaml diff --git a/Documentation/devicetree/bindings/display/bridge/fsl,ldb.yaml b/Documentation/devicetree/bindings/display/bridge/fsl,ldb.yaml new file mode 100644 index 000000000000..77f174eee424 --- /dev/null +++ b/Documentation/devicetree/bindings/display/bridge/fsl,ldb.yaml @@ -0,0 +1,92 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/display/bridge/fsl,ldb.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Freescale i.MX8MP DPI to LVDS bridge chip + +maintainers: + - Marek Vasut + +description: | + The i.MX8MP mediamix contains two registers which are responsible + for configuring the on-SoC DPI-to-LVDS serializer. This describes + those registers as bridge within the DT. + +properties: + compatible: + const: fsl,imx8mp-ldb + + clocks: + maxItems: 1 + + clock-names: + const: ldb + + ports: + $ref: /schemas/graph.yaml#/properties/ports + + properties: + port@0: + $ref: /schemas/graph.yaml#/properties/port + description: Video port for DPI input. + + port@1: + $ref: /schemas/graph.yaml#/properties/port + description: Video port for LVDS Channel-A output (panel or bridge). + + port@2: + $ref: /schemas/graph.yaml#/properties/port + description: Video port for LVDS Channel-B output (panel or bridge). + + required: + - port@0 + - port@1 + +required: + - compatible + - clocks + - ports + +additionalProperties: false + +examples: + - | + #include + + blk-ctrl { + bridge { + compatible = "fsl,imx8mp-ldb"; + clocks = <&clk IMX8MP_CLK_MEDIA_LDB>; + clock-names = "ldb"; + + ports { + #address-cells = <1>; + #size-cells = <0>; + + port@0 { + reg = <0>; + + ldb_from_lcdif2: endpoint { + remote-endpoint = <&lcdif2_to_ldb>; + }; + }; + + port@1 { + reg = <1>; + + ldb_lvds_ch0: endpoint { + remote-endpoint = <&ldb_to_lvdsx4panel>; + }; + }; + + port@2 { + reg = <2>; + + ldb_lvds_ch1: endpoint { + }; + }; + }; + }; + };