From patchwork Sun Jan 23 17:25:18 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: =?utf-8?q?Noralf_Tr=C3=B8nnes?= X-Patchwork-Id: 12721017 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 2D6A6C4332F for ; Sun, 23 Jan 2022 17:35:01 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id A8C3E10E193; Sun, 23 Jan 2022 17:34:59 +0000 (UTC) Received: from asav21.altibox.net (asav21.altibox.net [109.247.116.8]) by gabe.freedesktop.org (Postfix) with ESMTPS id 29B2B10E5DC for ; Sun, 23 Jan 2022 17:34:58 +0000 (UTC) Received: from localhost.localdomain (211.81-166-168.customer.lyse.net [81.166.168.211]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-SHA256 (128/128 bits)) (No client certificate requested) (Authenticated sender: noralf.tronnes@ebnett.no) by asav21.altibox.net (Postfix) with ESMTPSA id E39F980071; Sun, 23 Jan 2022 18:25:42 +0100 (CET) From: =?utf-8?q?Noralf_Tr=C3=B8nnes?= To: robh+dt@kernel.org, thierry.reding@gmail.com Subject: [PATCH 1/3] dt-bindings: display: add bindings for MIPI DBI compatible SPI panels Date: Sun, 23 Jan 2022 18:25:18 +0100 Message-Id: <20220123172520.48741-2-noralf@tronnes.org> X-Mailer: git-send-email 2.33.0 In-Reply-To: <20220123172520.48741-1-noralf@tronnes.org> References: <20220123172520.48741-1-noralf@tronnes.org> MIME-Version: 1.0 X-CMAE-Score: 0 X-CMAE-Analysis: v=2.3 cv=ZLv5Z0zb c=1 sm=1 tr=0 a=OYZzhG0JTxDrWp/F2OJbnw==:117 a=OYZzhG0JTxDrWp/F2OJbnw==:17 a=IkcTkHD0fZMA:10 a=M51BFTxLslgA:10 a=SJz97ENfAAAA:8 a=gEfo2CItAAAA:8 a=_-IPm86n_tWj2rs9gvkA:9 a=7Zwj6sZBwVKJAoWSPKxL6X1jA+E=:19 a=QEXdDO2ut3YA:10 a=vFet0B0WnEQeilDPIY6i:22 a=sptkURWiP4Gy88Gu7hUp:22 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: devicetree@vger.kernel.org, david@lechnology.com, dave.stevenson@raspberrypi.com, dri-devel@lists.freedesktop.org, =?utf-8?q?Noralf_Tr=C3=B8nnes?= , maxime@cerno.tech, sam@ravnborg.org Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" Add binding for MIPI DBI compatible SPI panels. Signed-off-by: Noralf Trønnes --- .../display/panel/panel-mipi-dbi-spi.yaml | 69 +++++++++++++++++++ 1 file changed, 69 insertions(+) create mode 100644 Documentation/devicetree/bindings/display/panel/panel-mipi-dbi-spi.yaml diff --git a/Documentation/devicetree/bindings/display/panel/panel-mipi-dbi-spi.yaml b/Documentation/devicetree/bindings/display/panel/panel-mipi-dbi-spi.yaml new file mode 100644 index 000000000000..d6c8accb045c --- /dev/null +++ b/Documentation/devicetree/bindings/display/panel/panel-mipi-dbi-spi.yaml @@ -0,0 +1,69 @@ +# SPDX-License-Identifier: GPL-2.0-only +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/display/panel/panel-mipi-dbi-spi.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: MIPI DBI SPI Panels Device Tree Bindings + +maintainers: + - Noralf Trønnes + +description: + This binding is for display panels using a MIPI DBI controller + in SPI mode. + +allOf: + - $ref: panel/panel-common.yaml# + - $ref: /schemas/spi/spi-peripheral-props.yaml# + +properties: + compatible: + const: panel-mipi-dbi-spi + + model: + $ref: /schemas/types.yaml#/definitions/string + description: The name of the display panel. + + write-only: + type: boolean + description: + Controller is not readable (ie. MISO is not wired up). + + dc-gpios: + maxItems: 1 + description: | + Controller data/command selection (D/CX) in 4-line SPI mode. + If not set, the controller is in 3-line SPI mode. + + backlight: true + reg: true + reset-gpios: true + +required: + - compatible + - model + - reg + +additionalProperties: false + +examples: + - | + #include + + spi { + #address-cells = <1>; + #size-cells = <0>; + + display@0{ + compatible = "panel-mipi-dbi-spi"; + model = "sainsmart18"; + reg = <0>; + spi-max-frequency = <40000000>; + dc-gpios = <&gpio 24 GPIO_ACTIVE_HIGH>; + reset-gpios = <&gpio 25 GPIO_ACTIVE_HIGH>; + write-only; + }; + }; + +...