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 X-Spam-Level: X-Spam-Status: No, score=-6.0 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS autolearn=no 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 E886BC433DB for ; Mon, 29 Mar 2021 03:12:32 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id B475961874 for ; Mon, 29 Mar 2021 03:12:32 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230243AbhC2DMA (ORCPT ); Sun, 28 Mar 2021 23:12:00 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:38350 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230297AbhC2DLk (ORCPT ); Sun, 28 Mar 2021 23:11:40 -0400 Received: from mail-pg1-x530.google.com (mail-pg1-x530.google.com [IPv6:2607:f8b0:4864:20::530]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id C9E62C061574 for ; Sun, 28 Mar 2021 20:11:40 -0700 (PDT) Received: by mail-pg1-x530.google.com with SMTP id i6so1359385pgs.1 for ; Sun, 28 Mar 2021 20:11:40 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=chromium.org; s=google; h=mime-version:content-transfer-encoding:in-reply-to:references :subject:from:cc:to:date:message-id:user-agent; bh=5Q+qgiDsgwjSQKIYdYJdHljkEvk8AN2J32oSoFHduGw=; b=WjjYVyIdpUEw49H3DF6KwLiSJnjfat8LZXHa6IQvgfjo5W7ZPUWPg/IPa6RvkZYY/6 bXO45yfctPD09cLJO0HgIP/o+XCn7b1MVHlI1kSDAKmN4kKHbTnNq79nl+xYdQEFJfqo 2mOGDyfOoahli0a00rVDFrnDEmzNjCFY4bsTA= X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:content-transfer-encoding :in-reply-to:references:subject:from:cc:to:date:message-id :user-agent; bh=5Q+qgiDsgwjSQKIYdYJdHljkEvk8AN2J32oSoFHduGw=; b=ErqQYQGQMLpCOEbcc6COZz1xIAKgEnvf4XWKn4aAEOTva+5KuorlQyIAmkl3kZlMSb k18uE0fMoSMktFJe0OGMPg3GKdOdk5MBFVqFSTDKnu9xkIbZi68AmgrEmAsGznnl9coi YWYW50Jnthgl+M1iJJ07gSlVwZHaMZoepI8y45t66dFFEAZ1QHq2hTBuCM5UwKUe3Mx9 WuFFtKk3vdkBp5K+lO9irpC2JV8pj8FxI0bSFVxIVwoEaV9F4NrSHDpUxmt4b+Mh6QiC WWL3ck6IwCTu92r7Btpx1s2Wsb7nuOlXISiV6bNm0j80T/1utr39mXTaHsmMABrx7qWD sLeA== X-Gm-Message-State: AOAM532IvUHaZZTu943viI9qQJEX1udpjnYLSJc2bbi2JF9BSlpNlEGd wdVg7E7bgsVxZA05wCd87phr2A== X-Google-Smtp-Source: ABdhPJyWhGlZ8xzgupeCVraZEMrbI82Rg0gE/nrkvcHLVZyvWSXmzY1kPzjxodjivhh8BBWNzZSr7Q== X-Received: by 2002:a65:63d6:: with SMTP id n22mr22510978pgv.393.1616987500424; Sun, 28 Mar 2021 20:11:40 -0700 (PDT) Received: from chromium.org ([2620:15c:202:201:d06e:3541:6cd6:ab0e]) by smtp.gmail.com with ESMTPSA id w189sm14998934pfw.86.2021.03.28.20.11.39 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sun, 28 Mar 2021 20:11:39 -0700 (PDT) Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable In-Reply-To: References: <20210328033639.1021599-1-gwendal@chromium.org> <20210328033639.1021599-3-gwendal@chromium.org> Subject: Re: [PATCH 2/2] iio: sx9310: Add debouncer-depth parameters From: Stephen Boyd Cc: Jonathan Cameron , Lars-Peter Clausen , Daniel Campello , Alexandru Ardelean , linux-iio To: Andy Shevchenko , Gwendal Grignou Date: Sun, 28 Mar 2021 20:11:37 -0700 Message-ID: <161698749780.3012082.7923744326858644645@swboyd.mtv.corp.google.com> User-Agent: alot/0.9.1 Precedence: bulk List-ID: X-Mailing-List: linux-iio@vger.kernel.org Quoting Andy Shevchenko (2021-03-28 05:32:36) > On Sun, Mar 28, 2021 at 6:36 AM Gwendal Grignou wr= ote: > > > > Semtech SX9310 SAR sensor has a debouncer filter: only when N > > measurements are above/below the far/close threshold an event is > > sent to the host. > > By default the debouncer is set to 2 events for the close to far > > transition and 1 event (no debounce) for far to close. > > It is a balance speed of detection and false positive avoidance. > > > > On some chromebooks, the debouncer is set to a larger number. > ... >=20 > > + ret =3D device_property_read_u32(dev, "semtech,close-de= bouncer-depth", &depth); > > + ret =3D device_property_read_u32(dev, "semtech,far-debo= uncer-depth", &depth); >=20 > Are they existing properties or new ones? To me sounds like the > latter. In such a case you missed DT bindings update. The bindings are part of patch #1.