From patchwork Sat Aug 22 16:32:45 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Paul Cercueil X-Patchwork-Id: 11732253 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 9651F1510 for ; Mon, 24 Aug 2020 06:56:18 +0000 (UTC) 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 mail.kernel.org (Postfix) with ESMTPS id 752BB2067C for ; Mon, 24 Aug 2020 06:56:18 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=fail reason="signature verification failed" (1024-bit key) header.d=crapouillou.net header.i=@crapouillou.net header.b="ikS9LtxX" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 752BB2067C Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=crapouillou.net Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=dri-devel-bounces@lists.freedesktop.org Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 7F4986EC7A; Mon, 24 Aug 2020 06:55:44 +0000 (UTC) X-Original-To: dri-devel@lists.freedesktop.org Delivered-To: dri-devel@lists.freedesktop.org Received: from crapouillou.net (crapouillou.net [89.234.176.41]) by gabe.freedesktop.org (Postfix) with ESMTPS id AD8D36E49D for ; Sat, 22 Aug 2020 16:33:14 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=crapouillou.net; s=mail; t=1598113986; h=from:from:sender:reply-to:subject:subject:date:date: message-id:message-id:to:to:cc:cc:mime-version:mime-version: content-type:content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=OpSFEylgpgBKh2P6uwfTBIT/WcJC6e5Uy+yuu1dkY14=; b=ikS9LtxXMYk4VZ/d4VFVzK/DGbochn/rlwxY2WcP3BfuhmvW113EUnZ23LGqlDNwLIF8H7 kNwhaZ9PHllpr4B7eA8ZcuNLmOuxOElZW3TG90zmU/QdtKnzOSKGCozbJypCrD3i6pc1wC 1RhWxZ1UoY2SKyVmyQTEF2CevnWTfJw= From: Paul Cercueil To: Thierry Reding , Sam Ravnborg , David Airlie , Daniel Vetter , Rob Herring , Maarten Lankhorst , Maxime Ripard , Thomas Zimmermann , Noralf Tronnes , Laurent Pinchart , Linus Walleij Subject: [PATCH v2 1/6] dt-bindings: display: Document NewVision NV3052C DT node Date: Sat, 22 Aug 2020 18:32:45 +0200 Message-Id: <20200822163250.63664-2-paul@crapouillou.net> In-Reply-To: <20200822163250.63664-1-paul@crapouillou.net> References: <20200822163250.63664-1-paul@crapouillou.net> MIME-Version: 1.0 X-Mailman-Approved-At: Mon, 24 Aug 2020 06:55:41 +0000 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: Paul Cercueil , devicetree@vger.kernel.org, od@zcrc.me, linux-kernel@vger.kernel.org, dri-devel@lists.freedesktop.org Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" Add documentation for the Device Tree node for LCD panels based on the NewVision NV3052C controller. v2: - Support backlight property - Add *-supply properties for the 5 different power supplies. Either they must all be present, or 'power-supply' must be present. - Reword description to avoid confusion about 'driver' - Use 4-space indent in example Signed-off-by: Paul Cercueil Reviewed-by: Rob Herring Reviewed-by: Linus Walleij --- .../display/panel/newvision,nv3052c.yaml | 100 ++++++++++++++++++ 1 file changed, 100 insertions(+) create mode 100644 Documentation/devicetree/bindings/display/panel/newvision,nv3052c.yaml diff --git a/Documentation/devicetree/bindings/display/panel/newvision,nv3052c.yaml b/Documentation/devicetree/bindings/display/panel/newvision,nv3052c.yaml new file mode 100644 index 000000000000..0468ddeaff2d --- /dev/null +++ b/Documentation/devicetree/bindings/display/panel/newvision,nv3052c.yaml @@ -0,0 +1,100 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/display/panel/newvision,nv3052c.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: NewVision NV3052C TFT LCD panel driver with SPI control bus + +maintainers: + - Paul Cercueil + +description: | + This is a IC driver for TFT panels, accepting a variety of input + streams that get adapted and scaled to the panel. + + The panel must obey the rules for a SPI slave device as specified in + spi/spi-controller.yaml + +allOf: + - $ref: panel-common.yaml# + +properties: + compatible: + items: + - enum: + - leadtek,ltk035c5444t-spi + + - const: newvision,nv3052c + + reg: + maxItems: 1 + + reset-gpios: true + power-supply: true + backlight: true + port: true + + vci-supply: + description: + Power supply for analog circuits (VCI=2.5V to 6V) + + vddam-supply: + description: + Power Supply for MIPI regulator circuits (VDDAM=1.75V to 6V) + + iovcc-supply: + description: | + External Power Supply for IO pads and other logic circuits + (IOVCC=1.65 to 3.6V) + + pprech-supply: + description: + Pre-charge power for source (can be connected to IOVCC or VCI) + + vpp-supply: + description: + Input power for NV memory programming (8.0V ~ 8.5V, typical=8.25V) + +required: + - compatible + - reg + +oneOf: + - required: + - power-supply + - required: + - vci-supply + - vddam-supply + - iovcc-supply + - pprech-supply + - vpp-supply + +unevaluatedProperties: false + +examples: + - | + #include + spi { + #address-cells = <1>; + #size-cells = <0>; + + display@0 { + compatible = "leadtek,ltk035c5444t-spi", "newvision,nv3052c"; + reg = <0>; + + spi-max-frequency = <15000000>; + spi-3wire; + reset-gpios = <&gpe 2 GPIO_ACTIVE_LOW>; + backlight = <&backlight>; + power-supply = <&vcc>; + + port { + panel_input: endpoint { + remote-endpoint = <&panel_output>; + }; + }; + }; + }; + +...