From patchwork Sat Apr 23 02:16:24 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Marek Vasut X-Patchwork-Id: 12824378 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 3BC77C433F5 for ; Sat, 23 Apr 2022 02:16:45 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id CB12410E16E; Sat, 23 Apr 2022 02:16:43 +0000 (UTC) Received: from phobos.denx.de (phobos.denx.de [85.214.62.61]) by gabe.freedesktop.org (Postfix) with ESMTPS id 138B610E061 for ; Sat, 23 Apr 2022 02:16:42 +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 9F4C6839B9; Sat, 23 Apr 2022 04:16:39 +0200 (CEST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=denx.de; s=phobos-20191101; t=1650680200; bh=c9Tpkb5qDmFmANarCqOokitXfKvtD3V291w7GgUKD6M=; h=From:To:Cc:Subject:Date:From; b=v/s5l2t20nxh59osQGoT5xOmTsP09I0L/p9eG9ErDx19rSCq49dhZf11TEyrqhA6D Nv7brvVhHx4UM/zukFYq6iWvgLuFmeq3z2Y+9oRmk4s3JSGLOA0YGxTvT3J5tbMPib 3Os6D90mbVNtPHgKBCFy4/6MtcUzUmmgj4dWtaFmd2WBEOb/OCpcefW947LMZQPHI5 va4tC81/WW4QalrtC23PCY5B4oyLwrQ6JB2ol9rbCnow9J8qgv2+lwNNEAhzo9OMV9 JXe8iWnKlEz7ti246W5aa8RlWkqqIz3g+UluAkctZ4Ljx9pvGQXuXuUdMOQkZBir4p UQOKPX7t5peWg== From: Marek Vasut To: dri-devel@lists.freedesktop.org Subject: [PATCH v3 1/2] dt-bindings: display: bridge: ldb: Implement simple NXP i.MX8MP LDB bridge Date: Sat, 23 Apr 2022 04:16:24 +0200 Message-Id: <20220423021625.512380-1-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 --- .../bindings/display/bridge/nxp,ldb.yaml | 96 +++++++++++++++++++ 1 file changed, 96 insertions(+) create mode 100644 Documentation/devicetree/bindings/display/bridge/nxp,ldb.yaml diff --git a/Documentation/devicetree/bindings/display/bridge/nxp,ldb.yaml b/Documentation/devicetree/bindings/display/bridge/nxp,ldb.yaml new file mode 100644 index 000000000000..9c1807f2ae43 --- /dev/null +++ b/Documentation/devicetree/bindings/display/bridge/nxp,ldb.yaml @@ -0,0 +1,96 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/display/bridge/nxp,ldb.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: NXP i.MX8MP DPI to LVDS bridge chip + +maintainers: + - Marek Vasut + +description: | + The i.MX8MP contains two syscon 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 + + fsl,syscon: + $ref: /schemas/types.yaml#/definitions/phandle + description: A phandle to media block controller. + + 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 + - fsl,syscon + - ports + +additionalProperties: false + +examples: + - | + #include + + bridge { + compatible = "fsl,imx8mp-ldb"; + clocks = <&clk IMX8MP_CLK_MEDIA_LDB>; + clock-names = "ldb"; + fsl,syscon = <&media_blk_ctrl>; + + 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 { + }; + }; + }; + };