From patchwork Fri Oct 18 08:20:00 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Chen-Yu Tsai X-Patchwork-Id: 13841392 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 bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (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 DEDAFD2F7E8 for ; Fri, 18 Oct 2024 08:35:27 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender:List-Subscribe:List-Help :List-Post:List-Archive:List-Unsubscribe:List-Id:Content-Transfer-Encoding: MIME-Version:Message-ID:Date:Subject:Cc:To:From:Reply-To:Content-Type: Content-ID:Content-Description:Resent-Date:Resent-From:Resent-Sender: Resent-To:Resent-Cc:Resent-Message-ID:In-Reply-To:References:List-Owner; bh=YD/BrAcHdAIIMXA1jUzknbvHmeKtjxe69u37Q8I7CtU=; b=Npv1NX2HyynuH3VrrbY/tgfUK7 CPPQrfwRbNUjZqtFBTZimUS3szr2IWCVaFUXGuetsins1GOg+xncdUsWt93N+38uUVKKkxidJwh9j HeVJU3RjLSXX3+FrCtY/jb0PvkL3VWCZZdZC5BcvnsSAMiCb1Qh8lLJJpAUUqchK1hwIRl9RCPtpA xAiwVTUI1snWg/z1wpM6irHxa66/8qxfjxpZO2HYXpb6V55ADAy49iu1FeUI07MUuaZaqaeBRW2FD fyJYuNPQibCC1EDUmzbgfIC4oJNjwm22Txw0sCrcCBgxLgZdYgJgChMvUCpuwOn55GRccEpCFbqYh XpZ3s5aQ==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.98 #2 (Red Hat Linux)) id 1t1iSE-0000000HZWd-3Mt1; Fri, 18 Oct 2024 08:35:26 +0000 Received: from mail-pf1-x434.google.com ([2607:f8b0:4864:20::434]) by bombadil.infradead.org with esmtps (Exim 4.98 #2 (Red Hat Linux)) id 1t1iDP-0000000HU0E-0goF for linux-mediatek@lists.infradead.org; Fri, 18 Oct 2024 08:20:08 +0000 Received: by mail-pf1-x434.google.com with SMTP id d2e1a72fcca58-71e79f73aaeso1315906b3a.3 for ; Fri, 18 Oct 2024 01:20:06 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=chromium.org; s=google; t=1729239606; x=1729844406; darn=lists.infradead.org; h=content-transfer-encoding:mime-version:message-id:date:subject:cc :to:from:from:to:cc:subject:date:message-id:reply-to; bh=YD/BrAcHdAIIMXA1jUzknbvHmeKtjxe69u37Q8I7CtU=; b=H5/rqhlDUVztqTwHdxFzizgw760Nj1l6jFYDaUVWcb2f2EXf7WmxsnLqvM+XtbDB1G PqR+Lut3BA2ypbCs9J+JbD0XK8Rvci3NOt0wpTRTzKnkA+Q1yFGgFBIs4UKKuOlAw18q SvDx/HFH7rQRpm2jeNg2un9jQaqUG1nsuMPw8= X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1729239606; x=1729844406; h=content-transfer-encoding:mime-version:message-id:date:subject:cc :to:from:x-gm-message-state:from:to:cc:subject:date:message-id :reply-to; bh=YD/BrAcHdAIIMXA1jUzknbvHmeKtjxe69u37Q8I7CtU=; b=sukyYny7GAPq5CPjuZzerpVM1SgmIRJaNLWAPmrykvC7ZmNq86pezLOAuEKIq2r1oq vjNXja0z4Vm8Y59PkjfE3fhPF2cEQ8vY3q9wzoGCDjCaEiQ+DVKDJG9F6K6pQGaz+yAq LAcLiTM2HoTn4FzuwUpZRqal8/NwB1phYcKI2vknik1He1KlVDzU4Xq68dxvdNGuWpRN 0zTRu4MZ0l/buZotQY1ErSDR9rutGPlA++lJB1Nj1mgpPO2dfqMukh5mvRfUU4HKFRQ3 pbh00YvLjUnHV3oQ+t5x+iYUH/MEI5PCO1mzuwrtvNA7C+6RY7kT0SIRgUi+oUkWZRP9 HlGQ== X-Forwarded-Encrypted: i=1; AJvYcCWOYFdYGM90V8v2orONWWRKHz3smI4ht9I6dlOXLiBc2nENI2WMo5rHTFZI2Cu2lr5P88oZmzq/Vc8NJnyLDw==@lists.infradead.org X-Gm-Message-State: AOJu0Yx9b4mhWwj87vBpyQUzMeJFq2VrZZGdK2e2+kHLFZZ21/3sYk7l WO47n1Zy1SHpyQsvwgnwedeGvLd3z6r/wqs+NIzrEsrsPDOKChOtUdglqD/eQw== X-Google-Smtp-Source: AGHT+IFwfYN5qZ6/UTJrq9b9zMKrlE4sxFnfRkL/+LlT9NlUwm0QDBK5n84qYUmrvBAFwk3vL771Fw== X-Received: by 2002:a05:6a20:e605:b0:1d8:ae07:c06 with SMTP id adf61e73a8af0-1d92c583d4dmr2151480637.48.1729239606136; Fri, 18 Oct 2024 01:20:06 -0700 (PDT) Received: from wenstp920.tpe.corp.google.com ([2401:fa00:1:10:5e77:354e:2385:7baa]) by smtp.gmail.com with ESMTPSA id d2e1a72fcca58-71ea3459348sm900418b3a.155.2024.10.18.01.20.04 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 18 Oct 2024 01:20:05 -0700 (PDT) From: Chen-Yu Tsai To: Matthias Brugger , AngeloGioacchino Del Regno Cc: Chen-Yu Tsai , devicetree@vger.kernel.org, linux-mediatek@lists.infradead.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org Subject: [PATCH v2] arm64: dts: mediatek: mt8173-elm-hana: Add vdd-supply to second source trackpad Date: Fri, 18 Oct 2024 16:20:00 +0800 Message-ID: <20241018082001.1296963-1-wenst@chromium.org> X-Mailer: git-send-email 2.47.0.rc1.288.g06298d1525-goog MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20241018_012007_271049_6A495979 X-CRM114-Status: GOOD ( 14.10 ) X-BeenThere: linux-mediatek@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "Linux-mediatek" Errors-To: linux-mediatek-bounces+linux-mediatek=archiver.kernel.org@lists.infradead.org The Hana device has a second source option trackpad, but it is missing its regulator supply. It only works because the regulator is marked as always-on. Add the regulator supply, but leave out the post-power-on delay. Instead, document the post-power-on delay along with the reason for not adding it in a comment. Fixes: 689b937bedde ("arm64: dts: mediatek: add mt8173 elm and hana board") Signed-off-by: Chen-Yu Tsai --- Changes since v1: - Drop the commented post-power-on-delay-ms property - Document the delay in a comment --- arch/arm64/boot/dts/mediatek/mt8173-elm-hana.dtsi | 8 ++++++++ 1 file changed, 8 insertions(+) diff --git a/arch/arm64/boot/dts/mediatek/mt8173-elm-hana.dtsi b/arch/arm64/boot/dts/mediatek/mt8173-elm-hana.dtsi index 8d1cbc92bce3..ae0379fd42a9 100644 --- a/arch/arm64/boot/dts/mediatek/mt8173-elm-hana.dtsi +++ b/arch/arm64/boot/dts/mediatek/mt8173-elm-hana.dtsi @@ -49,6 +49,14 @@ trackpad2: trackpad@2c { interrupts-extended = <&pio 117 IRQ_TYPE_LEVEL_LOW>; reg = <0x2c>; hid-descr-addr = <0x0020>; + /* + * The trackpad needs a post-power-on delay of 100ms, + * but at time of writing, the power supply for it on + * this board is always on. The delay is therefore not + * added to avoid impacting the readiness of the + * trackpad. + */ + vdd-supply = <&mt6397_vgp6_reg>; wakeup-source; }; };