From patchwork Wed Dec 16 21:41:05 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Gwendal Grignou X-Patchwork-Id: 11978621 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=-18.8 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 1BD53C4361B for ; Wed, 16 Dec 2020 21:42:01 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id CCE3F23602 for ; Wed, 16 Dec 2020 21:42:00 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726636AbgLPVmA (ORCPT ); Wed, 16 Dec 2020 16:42:00 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:50750 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1725601AbgLPVmA (ORCPT ); Wed, 16 Dec 2020 16:42:00 -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 1249FC06179C for ; Wed, 16 Dec 2020 13:41:20 -0800 (PST) Received: by mail-pj1-x102c.google.com with SMTP id f14so2232604pju.4 for ; Wed, 16 Dec 2020 13:41:20 -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=/1cSEzuqKCGj+bWrSPcCXCtJInhUSBBWBc/FVwh5wvU=; b=NRIQ/mWL4FGjDaJEZ+poLkSq7E3nvro8ya5vv5lqlkMYxqvcKdDLn3zyQNBuzhO945 LMk5Upw4+r0bAYpe/uFxrfCbjzZSn6akZXy2JFjT9CNynWQeJfTqyRxpX2bJKBLRLXJw 65QEWo2/v80ENdPapMrLI9agIuvbCAzx0phbA= 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=/1cSEzuqKCGj+bWrSPcCXCtJInhUSBBWBc/FVwh5wvU=; b=rLlwPPC9d2Pg0aNma8ieBSdAIKKo1FvufTiTtV+RIIx8jOhcogP48KeimdNddWeEZ/ S7YGSw6qe1m8SLzyalVxpY+Nks7s67YAgLJH/getcJXU8VOE3/Xn8LHtyspfNAINnStI rbz0gEpLGZCl+MSAlZLdZQdNNdDvECetZTYAvpPuwAfVeqMh4tHhOWhOlCaDetIut+kP e41NlEUZEPCbUi9qdYausYL7RuMc9lIMX0X3ktcF5YpSXKeECYKuqaCKpgM32cuVTwXt nZWUb0W8Bdz1VM39lv/nDuk0BtYxwHKobxfykhYdSnJ07m45b5MJ+/dGs7ZLYlc1lohD ojdQ== X-Gm-Message-State: AOAM530v3RQMHnGKhJZleYUjyoKTnWOccmywnmzt09oWcy2q5hv1BjiQ Kdg1Tuf1/ua1axcbtLAxrn8m8O3dVVu40Q== X-Google-Smtp-Source: ABdhPJwLTxUpQagmWzFx2lMwLBwGXaAdXxB2A3P9lkDJcMUWOAF/F9/vfPlAO69GRWmlsfVMQCSing== X-Received: by 2002:a17:90b:1886:: with SMTP id mn6mr4781104pjb.31.1608154879642; Wed, 16 Dec 2020 13:41:19 -0800 (PST) Received: from localhost ([2620:15c:202:201:7220:84ff:fe09:94fe]) by smtp.gmail.com with ESMTPSA id c199sm3910931pfb.108.2020.12.16.13.41.18 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Wed, 16 Dec 2020 13:41:18 -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 v5 1/3] iio: acpi_als: Add timestamp channel Date: Wed, 16 Dec 2020 13:41:05 -0800 Message-Id: <20201216214107.774969-2-gwendal@chromium.org> X-Mailer: git-send-email 2.29.2.729.g45daf8777d-goog In-Reply-To: <20201216214107.774969-1-gwendal@chromium.org> References: <20201216214107.774969-1-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 --- Changes in v4: Fix spelling. Changes in v5: Fill comment line. 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); }; /*