From patchwork Sun Apr 12 18:20:12 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Sam Ravnborg X-Patchwork-Id: 210224 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-9.6 required=3.0 tests=DKIM_INVALID,DKIM_SIGNED, HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH, MAILING_LIST_MULTI, SIGNED_OFF_BY, SPF_HELO_NONE,SPF_PASS,USER_AGENT_GIT autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 267F2C352B6 for ; Sun, 12 Apr 2020 18:31:17 +0000 (UTC) Received: from vger.kernel.org (unknown [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id F39EC20692 for ; Sun, 12 Apr 2020 18:31:16 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=fail reason="signature verification failed" (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="O3gdcKnk" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org F39EC20692 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=ravnborg.org Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-media-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727580AbgDLSaJ (ORCPT ); Sun, 12 Apr 2020 14:30:09 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.18]:43936 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727566AbgDLSaI (ORCPT ); Sun, 12 Apr 2020 14:30:08 -0400 Received: from mail-lf1-x142.google.com (mail-lf1-x142.google.com [IPv6:2a00:1450:4864:20::142]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 54314C0086C2; Sun, 12 Apr 2020 11:20:27 -0700 (PDT) Received: by mail-lf1-x142.google.com with SMTP id r17so4995808lff.2; Sun, 12 Apr 2020 11:20:27 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=sender:from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; bh=s7PyP7wM+hSmqY+Nl4dhHB6/+lR7BTTva1Z1R03Oe1A=; b=O3gdcKnk6nH6vW/0o9T/tib9LsIjIxtq7DG8LrEag2qjwgCdtswUsLnNipTw+jT4mP e6cbPPRL2CNlRKZQh2uOMyQo8DyoWKT/QaNU20nlUtHfdcRUNBK4L6HBlspqSom+34R3 j5TopCMaCD4NhkoQu4G+WM7fTFuXOdCPJ4KUsfEo9ysytuqSgn7sMNY/2udkVmdpe+Sq E6lHiaVugK/D0cp8oht8TJynVaMa1uDkGVpjyHYgwvMMhfaYM0BhWCdi9naledajb1/J HXbSROWbXH982peXfJctgLkwg1M88T2iLbE70T8ApVkffnPJ8+xumdNgXwejrBbJmrne 2Cog== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:sender:from:to:cc:subject:date:message-id :in-reply-to:references:mime-version:content-transfer-encoding; bh=s7PyP7wM+hSmqY+Nl4dhHB6/+lR7BTTva1Z1R03Oe1A=; b=WuCqlVAHLVb9xjw+AnScpKBk8gbwKqUIWZjww3Jxc1tHtd1K/zvkjkBsrQAXnDRRih KTaFTv1XTFGWsmLP+QHoKMJA7o/67L38DaNpOY4ILyBUfcdcJb00msU4XEKJHkM7kwju 46lzJ78RuaRCd9w9nUAqHSU996/ZETHuqFW4yUSE9lbUXl9xiVnT0WkBbDEO5LhxKPrv x6OXPI2bDpzWe4V0/ov+eyMlN7Qew9G28eNQVlk3TMeRpjd1JSCWJL/lvZ1w0c+xSV2u TfBjM/9LpcT/dNQ0bpPkdgpl06SQTdazPIqClA1WT/E0fHT1AffEPJONamJuRt0jzcoQ tWhw== X-Gm-Message-State: AGi0PuZqDZ2qWonX5J66+PFTgCxjX22Op4WDX+r5ueFqZOolByu2e7hz UtDRqDRnVsLPN/Sti1WJ1Ji2sdznhN8= X-Google-Smtp-Source: APiQypJSXZxot3B6tsVUM4YKg3cHraXKHQBplcVR54rLr6Cr3IwsfjmqDogPJQNAHRKGcEqAoTxaPg== X-Received: by 2002:a05:6512:10c9:: with SMTP id k9mr8379271lfg.183.1586715625482; Sun, 12 Apr 2020 11:20:25 -0700 (PDT) Received: from saturn.lan (18.158-248-194.customer.lyse.net. [158.248.194.18]) by smtp.gmail.com with ESMTPSA id m13sm6434394lfk.12.2020.04.12.11.20.24 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sun, 12 Apr 2020 11:20:25 -0700 (PDT) From: Sam Ravnborg To: devicetree@vger.kernel.org, Rob Herring , dri-devel@lists.freedesktop.org Cc: Nicolas Ferre , Alexandre Belloni , Boris Brezillon , Hans Verkuil , linux-media@vger.kernel.org, Mauro Carvalho Chehab , Sam Ravnborg Subject: [PATCH v1 4/4] dt-bindings: display: add port support to atmel lcdc Date: Sun, 12 Apr 2020 20:20:12 +0200 Message-Id: <20200412182012.27515-5-sam@ravnborg.org> X-Mailer: git-send-email 2.20.1 In-Reply-To: <20200412182012.27515-1-sam@ravnborg.org> References: <20200412182012.27515-1-sam@ravnborg.org> MIME-Version: 1.0 Sender: linux-media-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-media@vger.kernel.org Update the Atmel LCDC binding to include: - pwm. Used for backlight - endpoints using port node Used for handle to panel - Added wiring property that is used to describe the wiring between the LCDC and the panel Existing properties that should not be used in new bindings are deprecated. Updated example to include the updated way to specify panel etc. Signed-off-by: Sam Ravnborg --- .../bindings/display/atmel/lcdc.yaml | 94 ++++++++++++++++++- 1 file changed, 93 insertions(+), 1 deletion(-) diff --git a/Documentation/devicetree/bindings/display/atmel/lcdc.yaml b/Documentation/devicetree/bindings/display/atmel/lcdc.yaml index 7dcb9a4d5902..b5c2628f7805 100644 --- a/Documentation/devicetree/bindings/display/atmel/lcdc.yaml +++ b/Documentation/devicetree/bindings/display/atmel/lcdc.yaml @@ -28,6 +28,7 @@ properties: "#address-cells": const: 1 + "#size-cells": const: 0 @@ -43,13 +44,84 @@ properties: lcd-supply: description: Regulator for LCD supply voltage. + "#pwm-cells": + description: + This PWM chip use the default 3 cells bindings + defined in ../../pwm/pwm.yaml. + const: 3 + + clocks: + maxItems: 2 + + clock-names: + maxItems: 2 + items: + - const: lcdc_clk + - const: hclk + + port@0: + type: object + description: Endpoints of the display controller + + properties: + + reg: + const: 0 + + "#address-cells": + const: 1 + + "#size-cells": + const: 0 + + endpoint@0: + type: object + description: endpoint node that include phandle to panel + + properties: + + reg: + const: 0 + + wiring: + enum: + - straight + - red-blue-reversed + description: | + The LCDC is based on a blue-green-red configuration but to adapt + to SW only supporting red-green-blue the data lines for red and blue + may be reversed. + See details in: http://ww1.microchip.com/downloads/en/AppNotes/doc6300.pdf + "straight" - default value. Data lines are not reversed, uses BGR + "red-blue-reversed" - red and green are reversed, uses RGB + + remote-endpoint: + $ref: /schemas/types.yaml#/definitions/phandle + description: + phandle to the panel node + + required: + - reg + - remote-endpoint + + additionalProperties: false + + required: + - "#address-cells" + - "#size-cells" + - reg + + additionalProperties: false + display: $ref: /schemas/types.yaml#/definitions/phandle + deprecated: true description: phandle to display node patternProperties: "^display[0-9]$": type: object + deprecated: true description: | Display node is required to initialize the lcd panel. This should be in the board dts @@ -107,12 +179,32 @@ required: examples: - | + #include + #include + fb { compatible = "atmel,at91sam9263-lcdc"; reg = <0x00700000 0x1000>; - interrupts = <23 3 0>; + interrupts = <26 IRQ_TYPE_LEVEL_HIGH 3>; + clocks = <&pmc PMC_TYPE_PERIPHERAL 26>, <&pmc PMC_TYPE_PERIPHERAL 26>; + clock-names = "lcdc_clk", "hclk"; + + /* pwm for backlight */ + #pwm-cells = <3>; + #address-cells = <1>; #size-cells = <0>; + + port@0 { + reg = <0>; + #address-cells = <1>; + #size-cells = <0>; + endpoint@0 { + reg = <0>; + wiring = "red-blue-reversed"; + remote-endpoint = <&panel_input>; + }; + }; }; - |