From patchwork Thu Mar 23 17:30:08 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Doug Anderson X-Patchwork-Id: 667082 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 421E5C6FD1C for ; Thu, 23 Mar 2023 17:31:31 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232346AbjCWRb3 (ORCPT ); Thu, 23 Mar 2023 13:31:29 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:44000 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232248AbjCWRbX (ORCPT ); Thu, 23 Mar 2023 13:31:23 -0400 Received: from mail-pg1-x529.google.com (mail-pg1-x529.google.com [IPv6:2607:f8b0:4864:20::529]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 6773728D3A for ; Thu, 23 Mar 2023 10:31:17 -0700 (PDT) Received: by mail-pg1-x529.google.com with SMTP id k15so12253895pgt.10 for ; Thu, 23 Mar 2023 10:31:17 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=chromium.org; s=google; t=1679592677; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:from:to:cc:subject:date :message-id:reply-to; bh=6kiM2lrh2kvgdALZI8OIkWyLB50SqdxAm52tOpr2esY=; b=HXiP72pym+YYw/orvrMjuH/G76artp0TTfq7fhSlUPoJldbPdKxo3MqETM7XoMrCX/ 5MljJsHVpAL1rPPYKJFros7D3ckXNFp7LvANq7FzWMN8EXqeau3FUOkkmfu430yNwGtk rNzLOsjj27FpxdgtXZE5PmSLTxs0yAK+PEzT4= X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; t=1679592677; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=6kiM2lrh2kvgdALZI8OIkWyLB50SqdxAm52tOpr2esY=; b=p+NYJovXLHdpsYaoxjJBoCcHm3otNDZAo1tGSX20I3fKsHXzCPZvtgDf1/20VLPdmx hqikpp34c9MOKoKzgGPYslBYWPzmyxAkesml27+3WrQOR7zmBx37a38uotbBzGXCD6Q2 NuVin2AhqRbrk3Mdwc+QH7BN+ZV1bsLS2tgTyQw/yiZQ6xi2g9MAW7dFucm/Q/s4qz+c V+KgoXmP4UdvRgkjLgyXffcCT08BEAvwOA4sio2mcMBEakchbSDmAtR9QIh3f+XWcGL0 p/9KqXCSTULXpcSqt8bdfvw/wJ0ZqC9nwADxqW4tEq5u23Dxgqmuil0yWyAg5YHDSR16 EPBA== X-Gm-Message-State: AAQBX9fk7kFftu8cjof+LuxzSQ2pyzRpremKHIsE/4Ga8czY9zeRCBqM wlfW9PT+GuSKQlR/IxRuCq33tA== X-Google-Smtp-Source: AKy350buG3y4PZg93OsVSfDc5+NHl/qYArOkaLVdvFImYeKdyz7hN2Fv645vPTrSh6BE5heW32nH9g== X-Received: by 2002:a62:8413:0:b0:624:d72e:e629 with SMTP id k19-20020a628413000000b00624d72ee629mr251075pfd.8.1679592676912; Thu, 23 Mar 2023 10:31:16 -0700 (PDT) Received: from tictac2.mtv.corp.google.com ([2620:15c:9d:2:16d3:ef20:206a:6521]) by smtp.gmail.com with ESMTPSA id x13-20020a62fb0d000000b0061a6f4c1b2bsm12613546pfm.171.2023.03.23.10.31.14 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 23 Mar 2023 10:31:15 -0700 (PDT) From: Douglas Anderson To: Bjorn Andersson , Rob Herring , Krzysztof Kozlowski , Mark Brown , Linus Walleij Cc: Matthias Kaehlcke , Konrad Dybcio , linux-gpio@vger.kernel.org, Stephen Boyd , devicetree@vger.kernel.org, linux-arm-msm@vger.kernel.org, linux-spi@vger.kernel.org, Douglas Anderson , Andy Gross , linux-kernel@vger.kernel.org Subject: [PATCH 04/14] arm64: dts: qcom: sc7180: Annotate l13a on trogdor to always-on Date: Thu, 23 Mar 2023 10:30:08 -0700 Message-Id: <20230323102605.4.I9f47a8a53eacff6229711a827993792ceeb36971@changeid> X-Mailer: git-send-email 2.40.0.348.gf938b09366-goog In-Reply-To: <20230323173019.3706069-1-dianders@chromium.org> References: <20230323173019.3706069-1-dianders@chromium.org> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-gpio@vger.kernel.org The l13a rail on trogdor devices has always been intended to be always-on on both S0 and S3. Different trogdor variants use l13a in slightly different ways, but the overall theme is that it's a 1.8V rail that the board uses for things that it wants powered in on S0 and S3. On many boards this includes the boot SPI (AKA qspi). For all intents and purposes this patch is actually a no-op since something else in the system seems to already be keeping the rail on all the time (confirmed via multimeter). That "something else" was postulated to be the modem but the rail is on / stays on even without the modem/wifi coming up so it's likely the boot config. In any case, making the fact that this is always-on explicit seems like a good idea. Signed-off-by: Douglas Anderson --- arch/arm64/boot/dts/qcom/sc7180-trogdor.dtsi | 2 ++ 1 file changed, 2 insertions(+) diff --git a/arch/arm64/boot/dts/qcom/sc7180-trogdor.dtsi b/arch/arm64/boot/dts/qcom/sc7180-trogdor.dtsi index 423630c4d02c..1f2e1f701761 100644 --- a/arch/arm64/boot/dts/qcom/sc7180-trogdor.dtsi +++ b/arch/arm64/boot/dts/qcom/sc7180-trogdor.dtsi @@ -512,6 +512,8 @@ pp1800_l13a: ldo13 { regulator-min-microvolt = <1800000>; regulator-max-microvolt = <1800000>; regulator-initial-mode = ; + regulator-always-on; + regulator-boot-on; }; pp1800_prox: