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=-2.7 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,FREEMAIL_FORGED_FROMDOMAIN,FREEMAIL_FROM, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS, URIBL_BLOCKED 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 C6CA9C433FE for ; Wed, 9 Dec 2020 15:16:46 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 86F5223770 for ; Wed, 9 Dec 2020 15:16:46 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726613AbgLIPQq (ORCPT ); Wed, 9 Dec 2020 10:16:46 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:43730 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726278AbgLIPQq (ORCPT ); Wed, 9 Dec 2020 10:16:46 -0500 Received: from mail-pl1-x633.google.com (mail-pl1-x633.google.com [IPv6:2607:f8b0:4864:20::633]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id D7E13C0613D6 for ; Wed, 9 Dec 2020 07:16:05 -0800 (PST) Received: by mail-pl1-x633.google.com with SMTP id 4so1087061plk.5 for ; Wed, 09 Dec 2020 07:16:05 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=mime-version:references:in-reply-to:from:date:message-id:subject:to :cc; bh=zvT2wIiuxsnLXhonSyiaHjeoM7uisT3Aa0IguNeIk1M=; b=otI/b43dB7WQIoPJgjPN2CGniOHoicPyRO5P3N9DMkzwlewYjnl3hy/yxNhSQToAUh 0bRvWKaWsv6pBPqPbirVjBsTnSspv2sJBQF0OjNa6/VaKTfB2KFOys19LMbfbZov/cm0 hoNndu4dLLcqe05vuzmrv8u3wdR7kajitwN1djm/f6gsHXCuZ9IqvmR8wQsbpXJJNVMy Hl7SQb0KYHtqMK6HqkP2J6wd8imVBCW3d3vcffMV6IJ3oD+Ko2gGHrIqM4k760pWkq48 7CD9Fn7vvgHvz96OnNHufH9bIKnYKu0Y2YxBpRdGQ4cGeOZ2nNvdIZlltenE+MBWWipt 0HAA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:references:in-reply-to:from:date :message-id:subject:to:cc; bh=zvT2wIiuxsnLXhonSyiaHjeoM7uisT3Aa0IguNeIk1M=; b=QMuBWXvAzIsjW5u8P76jPGZnc1ItPKOyLQ1eJxu5+ocvUEs6KxUdYKvDTaEGal/XwA YuxrP7mlh0beIPvaokP6KDMnbr2GZ5GQDItbuG+FamxvJEI2nmr0Ze0TULlGaeMWh2Au DBJmx19qe/CtWPCJUEL4TKIkZEvEVkcVevdimm0yuSJl1UMmxTkpTgRc9R9qLHh9IykO fDT3sYrEfDX+GOK1v9Kb+T5Pr+cU/eDjTxj2VkvwNH6vpufmIwvOYkLl6pORkerxkufO le/8+nHlVmjTngy0jEq7S8GzOCuukicb+TS5X3hawMS79U1MVv+LfWlJQOgkuz1TBG+m xX0w== X-Gm-Message-State: AOAM530SMDlNLZGdduNNkk1bVvlyuLaGFCNe1A0qLyo7M8ChnmbUpi9d 3CMzXOUvMopfMb/kXIkDFm/WgGpgJOUmWtaW5Og= X-Google-Smtp-Source: ABdhPJywyP9hR0cWJs1SQ1S7LC7KV9kDklYCQd2JQ2zNpDh7wzKB4qrcFxs6FvGgi8qQJTWboIuMALQ4ye3a7y0CbPg= X-Received: by 2002:a17:90a:34cb:: with SMTP id m11mr2679455pjf.181.1607526965350; Wed, 09 Dec 2020 07:16:05 -0800 (PST) MIME-Version: 1.0 References: <20201204203755.818932-1-gwendal@chromium.org> In-Reply-To: <20201204203755.818932-1-gwendal@chromium.org> From: Andy Shevchenko Date: Wed, 9 Dec 2020 17:16:52 +0200 Message-ID: Subject: Re: [PATCH] iio: acpi_als: Add trigger support To: Gwendal Grignou Cc: Gabriele Mazzotta , Jonathan Cameron , Lars-Peter Clausen , linux-iio Content-Type: text/plain; charset="UTF-8" Precedence: bulk List-ID: X-Mailing-List: linux-iio@vger.kernel.org On Fri, Dec 4, 2020 at 10:40 PM Gwendal Grignou wrote: > > Add timestamp channel: use standard procedure to collect timestamp. > As some firmware do not notify on illuminance changes, add a do -> does > trigger to periodically query light. Sounds like two things in one change, you have to split. > We can either use the device trigger, or a software trigger like sysfs > or hrtimer. > > This change is not backward compatible. You mean you are breaking ABI? It won't go like this. > To get samples from bios that bios -> BIOS > supports notification, we need to register the hardware trigger first: -- With Best Regards, Andy Shevchenko