From mboxrd@z Thu Jan 1 00:00:00 1970 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 3616DC4167E for ; Mon, 25 Apr 2022 04:08:39 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S240911AbiDYELj (ORCPT ); Mon, 25 Apr 2022 00:11:39 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:54450 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S240952AbiDYELT (ORCPT ); Mon, 25 Apr 2022 00:11:19 -0400 Received: from mail-pl1-x632.google.com (mail-pl1-x632.google.com [IPv6:2607:f8b0:4864:20::632]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id C4D2A2B1B9; Sun, 24 Apr 2022 21:07:29 -0700 (PDT) Received: by mail-pl1-x632.google.com with SMTP id d15so24209241pll.10; Sun, 24 Apr 2022 21:07:29 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20210112; h=date:from:to:cc:subject:message-id:references:mime-version :content-disposition:in-reply-to; bh=TMIuF0We9zcIngU+b/yDWhTup1CGDWMUPgiHK4ayFFM=; b=JsKvZlmSjcirO852+grZpjekXVXek3nLbPvO5/IdHb3yKksMgpGAFUz47G9rA2lDro zpdIbgY9LIMNHj1+I3qZOX57eErFMsdznqD3+4qFq508SsCK7a3su+GvM71fzVB+YmgA SFrWzXLYP6UgKfcv0T4vfB+fl4VETU+n1NjWQD9sXu1iKdAFbEuU4iAQe7gmFp5/n2n5 fifl4KH/siwe8YBVav3FZrt2RW2pG1cB+Cu+TvPoARxEnsx+Wsuh+VDiag5IpQD5b0dy 6Aw7RiC/LfwHkwHYycVLBtyYPIqSsHC/7NspM9oMFbWtUhmH8serECmIjRqz47NGlOtD uu5w== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:date:from:to:cc:subject:message-id:references :mime-version:content-disposition:in-reply-to; bh=TMIuF0We9zcIngU+b/yDWhTup1CGDWMUPgiHK4ayFFM=; b=uA/va8ujhElg/xea5dDrhOqPTlopuDYeys2gSgZvv6UR0v7kNApzFozBk7OidJkWVZ xKN676yYyAKWC2n+qZNNWCbC9+dTaw1QwvqhdCjiQ82p1mVKeAqwrCng12IFvX/nvo3h G6hrjvaQAsrMcv9zvbbGzeVN0rk6UeZfyx0bZYJe1+CGL/judogYbRbU7q/rSdTwewkB tMM4u19xYLb8l2Locb8vnz6A+ah9lJdzlax19m5CfbQJfPTiPFsc1hiyy9DZIylR8SRq QAv0whmlSg9UNP5aCAPnF3+gm7wEb128a1OCaL4WzKqrHZX1ho9IuAz1a/H8z39r4pUT mb4A== X-Gm-Message-State: AOAM533lmgELjbu753LhZ7K7qU+s7LXm4444t6UpBagrNYPJc7fbnoFK InuqLr5t0NQf1tjpwsNh+0Q= X-Google-Smtp-Source: ABdhPJyvw/bGt3qTVySgeKahYdCa2zDFc0dpbfh/kCEeIWJXe4jk3O/fefnFJkaAr6MLEGFpNdQvZg== X-Received: by 2002:a17:902:b612:b0:158:8455:479e with SMTP id b18-20020a170902b61200b001588455479emr16715776pls.59.1650859649173; Sun, 24 Apr 2022 21:07:29 -0700 (PDT) Received: from google.com ([2620:15c:202:201:282a:d50e:e0fc:c145]) by smtp.gmail.com with ESMTPSA id k15-20020a63ab4f000000b00381eef69bfbsm8083069pgp.3.2022.04.24.21.07.27 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sun, 24 Apr 2022 21:07:28 -0700 (PDT) Date: Sun, 24 Apr 2022 21:07:25 -0700 From: Dmitry Torokhov To: Anjelique Melendez Cc: corbet@lwn.net, sre@kernel.org, robh+dt@kernel.org, linux-input@vger.kernel.org, linux-kernel@vger.kernel.org, linux-arm-msm@vger.kernel.org, bjorn.andersson@linaro.org, swboyd@chromium.org, linux-doc@vger.kernel.org, linux-pm@vger.kernel.org, devicetree@vger.kernel.org, David Collins Subject: Re: [PATCH v6 4/5] input: misc: pm8941-pwrkey: add software key press debouncing support Message-ID: References: <20220422191239.6271-1-quic_amelende@quicinc.com> <20220422191239.6271-5-quic_amelende@quicinc.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20220422191239.6271-5-quic_amelende@quicinc.com> Precedence: bulk List-ID: X-Mailing-List: linux-input@vger.kernel.org On Fri, Apr 22, 2022 at 12:12:42PM -0700, Anjelique Melendez wrote: > From: David Collins > > On certain PMICs, an unexpected assertion of KPDPWR_DEB (the > positive logic hardware debounced power key signal) may be seen > during the falling edge of KPDPWR_N (i.e. a power key press) when > it occurs close to the rising edge of SLEEP_CLK. This then > triggers a spurious KPDPWR interrupt. > > Handle this issue by adding software debouncing support to ignore > key events that occur within the hardware debounce delay after the > most recent key release event. > > Signed-off-by: David Collins > Signed-off-by: Anjelique Melendez Applied, thank you. -- Dmitry