From patchwork Tue Sep 1 15:09:29 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Greg KH X-Patchwork-Id: 310242 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=-13.0 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED, DKIM_VALID, HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH, MAILING_LIST_MULTI, SIGNED_OFF_BY, SPF_HELO_NONE, SPF_PASS, URIBL_BLOCKED, 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 96AEEC433E7 for ; Tue, 1 Sep 2020 16:59:28 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 66E8A20E65 for ; Tue, 1 Sep 2020 16:59:28 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1598979568; bh=5jS2a6nPms7u8HrnTK0zIO+a3Hb2alS7OnyV36PMbSs=; h=From:To:Cc:Subject:Date:In-Reply-To:References:List-ID:From; b=Pa4oqr1dE97pWivVd7WQhSrVdtQ5WL53g0oI51R7CiV3RNmOUaQSlk1jaWC1QsGS0 dV6WWdlddOAdocUjR7tbRicnIzdLVSUf8piDewT4e8egiplbQ/rzOcWZqcWG3aYFnM Ut2lrne8MXQEx4B4rlXrRKmzzDh0p7PQj4B3S/cI= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1729538AbgIAPVs (ORCPT ); Tue, 1 Sep 2020 11:21:48 -0400 Received: from mail.kernel.org ([198.145.29.99]:42728 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726064AbgIAPVp (ORCPT ); Tue, 1 Sep 2020 11:21:45 -0400 Received: from localhost (83-86-74-64.cable.dynamic.v4.ziggo.nl [83.86.74.64]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id 92964207D3; Tue, 1 Sep 2020 15:21:44 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1598973705; bh=5jS2a6nPms7u8HrnTK0zIO+a3Hb2alS7OnyV36PMbSs=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=psvyhZZxEFgZJINRAHj4jd7zpakEsRrLRsnZXmC6xPqdtJeLwMWhdhV9SQK8gLe4X 7TyywmThJEAzoN27kswBxBgs4HFc6JSuMxOoOiBOl5UEtCMeMb31t9LEH3ak8yCqw0 B8jRnqC7Gq+7nG9EXt9u6wMOaC8+nJjnZ7tNMgsI= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Srinivas Kandagatla , Stephan Gerhold , Bjorn Andersson , Sasha Levin Subject: [PATCH 4.19 014/125] arm64: dts: qcom: msm8916: Pull down PDM GPIOs during sleep Date: Tue, 1 Sep 2020 17:09:29 +0200 Message-Id: <20200901150935.266429190@linuxfoundation.org> X-Mailer: git-send-email 2.28.0 In-Reply-To: <20200901150934.576210879@linuxfoundation.org> References: <20200901150934.576210879@linuxfoundation.org> User-Agent: quilt/0.66 MIME-Version: 1.0 Sender: stable-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: stable@vger.kernel.org From: Stephan Gerhold [ Upstream commit e2ee9edc282961783d519c760bbaa20fed4dec38 ] The original qcom kernel changed the PDM GPIOs to be pull-down during sleep at some point. Reportedly this was done because there was some "leakage at PDM outputs during sleep": https://source.codeaurora.org/quic/la/kernel/msm-3.10/commit/?id=0f87e08c1cd3e6484a6f7fb3e74e37340bdcdee0 I cannot say how effective this is, but everything seems to work fine with this change so let's apply the same to mainline just to be sure. Cc: Srinivas Kandagatla Signed-off-by: Stephan Gerhold Link: https://lore.kernel.org/r/20200605185916.318494-3-stephan@gerhold.net Signed-off-by: Bjorn Andersson Signed-off-by: Sasha Levin --- arch/arm64/boot/dts/qcom/msm8916-pins.dtsi | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/arm64/boot/dts/qcom/msm8916-pins.dtsi b/arch/arm64/boot/dts/qcom/msm8916-pins.dtsi index 60d218c5275c1..6754817658fa4 100644 --- a/arch/arm64/boot/dts/qcom/msm8916-pins.dtsi +++ b/arch/arm64/boot/dts/qcom/msm8916-pins.dtsi @@ -529,7 +529,7 @@ pins = "gpio63", "gpio64", "gpio65", "gpio66", "gpio67", "gpio68"; drive-strength = <2>; - bias-disable; + bias-pull-down; }; }; };