From patchwork Mon Aug 7 13:33:04 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Diogo Ivo X-Patchwork-Id: 711308 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 vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 92800C00528 for ; Mon, 7 Aug 2023 13:34:17 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S233936AbjHGNeQ (ORCPT ); Mon, 7 Aug 2023 09:34:16 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:49168 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S234000AbjHGNeK (ORCPT ); Mon, 7 Aug 2023 09:34:10 -0400 Received: from smtp1.tecnico.ulisboa.pt (smtp1.tecnico.ulisboa.pt [193.136.128.21]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id DEFEA1BF2; Mon, 7 Aug 2023 06:33:54 -0700 (PDT) Received: from localhost (localhost.localdomain [127.0.0.1]) by smtp1.tecnico.ulisboa.pt (Postfix) with ESMTP id 711296002981; Mon, 7 Aug 2023 14:33:26 +0100 (WEST) X-Virus-Scanned: by amavisd-new-2.11.0 (20160426) (Debian) at tecnico.ulisboa.pt Received: from smtp1.tecnico.ulisboa.pt ([127.0.0.1]) by localhost (smtp1.tecnico.ulisboa.pt [127.0.0.1]) (amavisd-new, port 10025) with LMTP id clnxkWAWtHdf; Mon, 7 Aug 2023 14:33:24 +0100 (WEST) Received: from mail1.tecnico.ulisboa.pt (mail1.ist.utl.pt [IPv6:2001:690:2100:1::b3dd:b9ac]) by smtp1.tecnico.ulisboa.pt (Postfix) with ESMTPS id 02815600143D; Mon, 7 Aug 2023 14:33:24 +0100 (WEST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=tecnico.ulisboa.pt; s=mail; t=1691415204; bh=xXpwDP28dmMOvYOy+Q2tNKumkvnv9OuKqHSfvKZT/pU=; h=From:To:Cc:Subject:Date:In-Reply-To:References; b=R94c5WZXZ8s+BvXw2QzP7aiLNi++ZRWjq7b06/r8wDlkgZ+KACLJUeIaT3/fjKzed ZVWuP//BBx8Fnn0RfQ3YF79eOUYrt7+TLRsJNhmwLhGF+BHrfgyCE+JqeBJAGBmAvD 5c9DO9x+meMIt90+5iRP2fbGmaR5BnOHugZGn0Sw= Received: from diogo-gram.Home (unknown [IPv6:2001:8a0:fbe7:6700:e50a:b22:79be:5827]) (Authenticated sender: ist187313) by mail1.tecnico.ulisboa.pt (Postfix) with ESMTPSA id BDB25360077; Mon, 7 Aug 2023 14:33:23 +0100 (WEST) From: Diogo Ivo To: robh+dt@kernel.org, krzysztof.kozlowski+dt@linaro.org, conor+dt@kernel.org, thierry.reding@gmail.com, jonathanh@nvidia.com, devicetree@vger.kernel.org, linux-tegra@vger.kernel.org Cc: Diogo Ivo Subject: [PATCH v3 4/5] arm64: dts: smaug: Add backlight node Date: Mon, 7 Aug 2023 14:33:04 +0100 Message-ID: <20230807133307.27456-5-diogo.ivo@tecnico.ulisboa.pt> X-Mailer: git-send-email 2.41.0 In-Reply-To: <20230807133307.27456-1-diogo.ivo@tecnico.ulisboa.pt> References: <20230807133307.27456-1-diogo.ivo@tecnico.ulisboa.pt> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: devicetree@vger.kernel.org The Google Pixel C has a TI LP8557 backlight controller, so add a DT node for it. Signed-off-by: Diogo Ivo --- arch/arm64/boot/dts/nvidia/tegra210-smaug.dts | 31 +++++++++++++++++++ 1 file changed, 31 insertions(+) diff --git a/arch/arm64/boot/dts/nvidia/tegra210-smaug.dts b/arch/arm64/boot/dts/nvidia/tegra210-smaug.dts index bfdb0f8531f6..84ccb1495f21 100644 --- a/arch/arm64/boot/dts/nvidia/tegra210-smaug.dts +++ b/arch/arm64/boot/dts/nvidia/tegra210-smaug.dts @@ -1648,6 +1648,37 @@ nau8825@1a { status = "okay"; }; + backlight: backlight@2c { + compatible = "ti,lp8557"; + reg = <0x2c>; + power-supply = <&pplcd_vdd>; + enable-supply = <&pp1800_lcdio>; + bl-name = "lp8557-backlight"; + dev-ctrl = /bits/ 8 <0x01>; + init-brt = /bits/ 8 <0x80>; + + /* Full scale current, 20mA */ + rom-11h { + rom-addr = /bits/ 8 <0x11>; + rom-val = /bits/ 8 <0x05>; + }; + /* Frequency = 4.9kHz, magic undocumented val */ + rom-12h { + rom-addr = /bits/ 8 <0x12>; + rom-val = /bits/ 8 <0x29>; + }; + /* Boost freq = 1MHz, BComp option = 1 */ + rom-13h { + rom-addr = /bits/ 8 <0x13>; + rom-val = /bits/ 8 <0x03>; + }; + /* 4V OV, 6 output LED string enabled */ + rom-14h { + rom-addr = /bits/ 8 <0x14>; + rom-val = /bits/ 8 <0xbf>; + }; + }; + audio-codec@2d { compatible = "realtek,rt5677"; reg = <0x2d>;