From patchwork Tue Dec 29 01:52:58 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Gwendal Grignou X-Patchwork-Id: 11991831 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=-18.9 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_CR_TRAILER,INCLUDES_PATCH,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS, URIBL_BLOCKED,USER_AGENT_GIT autolearn=ham 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 5B702C433E0 for ; Tue, 29 Dec 2020 01:54:04 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 1704E21D94 for ; Tue, 29 Dec 2020 01:54:04 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726158AbgL2Bxt (ORCPT ); Mon, 28 Dec 2020 20:53:49 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:55186 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726014AbgL2Bxt (ORCPT ); Mon, 28 Dec 2020 20:53:49 -0500 Received: from mail-pj1-x102c.google.com (mail-pj1-x102c.google.com [IPv6:2607:f8b0:4864:20::102c]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 2493AC061793 for ; Mon, 28 Dec 2020 17:53:09 -0800 (PST) Received: by mail-pj1-x102c.google.com with SMTP id lj6so682179pjb.0 for ; Mon, 28 Dec 2020 17:53:09 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=chromium.org; s=google; h=from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; bh=q/SDjd3IqDveGOdOyKRmFp4u/wbZ0g210W66vmPxVOk=; b=N3AyRN3tfiCB1sC6qXbrnNWHnmxIvCiljz1mktJIZou59E5VF6MFca1dbrItx31JFX 1n9w2vKQQXdpffEphMgbBOPNDZL/GSKSKNOG2GDz0UBmsGPPE4++hjjXt9CnGtOQQTaN Jcld/dNQXLMy3aKlJnyYfq2OKLxbZMtMAPies= X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=q/SDjd3IqDveGOdOyKRmFp4u/wbZ0g210W66vmPxVOk=; b=ppUPjMuFfNjhlqilN599WmbJStOmCmGnjjnP1Hp28GTcNEbAP+Fs4eFN5NFza4NH0h o4N5TTA6v54A5ipBtinFE4E4c/c+5rsejIAWPMRcsRv1aG/3XKC7Lpx9kTt4w52aprxf cDl8h3/lbpm562BGVs6XqOk1/xojFY+5o366xGiwyLFjRuuV8/EuIZvUy0wviBtQEQ+J HU9jyh7+q9WyfyVJ4WHSVUBaRzFgmVdlU6u5NSyhzN5GSDtn5s1LYQ8ohPJH6vRMa+0U P+HysXnDLADeYppkZsIWFA2hBEoM7M59ESWk1J1x+O3/Kc62iNORK8Y1PGg8YJNZblUh twQQ== X-Gm-Message-State: AOAM530nVyEPIsDZl/9Sco1XGW1ugHtIhmRV2wXcUYb5c8nsz8hKHfzm wdKQ7/3AxxGn2B/ipkowwT91AQ== X-Google-Smtp-Source: ABdhPJxGH4vsUeUvELLO4+oEGEmDHFGzfhYC2b/5Th379WLdDbAk9pJUc21rKnZpt3qxBm9ekDr7LA== X-Received: by 2002:a17:90a:cc0a:: with SMTP id b10mr1656545pju.59.1609206788723; Mon, 28 Dec 2020 17:53:08 -0800 (PST) Received: from localhost ([2620:15c:202:201:7220:84ff:fe09:94fe]) by smtp.gmail.com with ESMTPSA id s1sm1243740pjk.1.2020.12.28.17.53.07 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Mon, 28 Dec 2020 17:53:08 -0800 (PST) From: Gwendal Grignou To: gabriele.mzt@gmail.com, jic23@kernel.org, lars@metafoo.de, andy.shevchenko@gmail.com Cc: linux-iio@vger.kernel.org, Gwendal Grignou Subject: [PATCH v6 1/3] iio: acpi_als: Add timestamp channel Date: Mon, 28 Dec 2020 17:52:58 -0800 Message-Id: <20201229015300.3037816-2-gwendal@chromium.org> X-Mailer: git-send-email 2.29.2.729.g45daf8777d-goog In-Reply-To: <20201229015300.3037816-1-gwendal@chromium.org> References: <20201229015300.3037816-1-gwendal@chromium.org> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-iio@vger.kernel.org Add timestamp channel in list of channel, to allow retrieving timestamps when events are produced. Signed-off-by: Gwendal Grignou Reviewed-by: Andy Shevchenko --- No changes in v6 Changes in v5: Fill comment line. Changes in v4: Fix spelling. drivers/iio/light/acpi-als.c | 10 ++++------ 1 file changed, 4 insertions(+), 6 deletions(-) diff --git a/drivers/iio/light/acpi-als.c b/drivers/iio/light/acpi-als.c index 2be7180e2cbfa..6dbaeeebe2041 100644 --- a/drivers/iio/light/acpi-als.c +++ b/drivers/iio/light/acpi-als.c @@ -45,24 +45,22 @@ static const struct iio_chan_spec acpi_als_channels[] = { .info_mask_separate = BIT(IIO_CHAN_INFO_RAW) | BIT(IIO_CHAN_INFO_PROCESSED), }, + IIO_CHAN_SOFT_TIMESTAMP(1), }; /* * The event buffer contains timestamp and all the data from * the ACPI0008 block. There are multiple, but so far we only - * support _ALI (illuminance). Once someone adds new channels - * to acpi_als_channels[], the evt_buffer below will grow - * automatically. + * support _ALI (illuminance): One channel, padding and timestamp. */ -#define ACPI_ALS_EVT_NR_SOURCES ARRAY_SIZE(acpi_als_channels) #define ACPI_ALS_EVT_BUFFER_SIZE \ - (sizeof(s64) + (ACPI_ALS_EVT_NR_SOURCES * sizeof(s32))) + (sizeof(s32) + sizeof(s32) + sizeof(s64)) struct acpi_als { struct acpi_device *device; struct mutex lock; - s32 evt_buffer[ACPI_ALS_EVT_BUFFER_SIZE]; + s32 evt_buffer[ACPI_ALS_EVT_BUFFER_SIZE / sizeof(s32)] __aligned(8); }; /*