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=-9.9 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH, MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS,USER_AGENT_GIT autolearn=unavailable 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 8D927C54FCF for ; Tue, 24 Mar 2020 20:28:25 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 66ADB2074D for ; Tue, 24 Mar 2020 20:28:25 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=chromium.org header.i=@chromium.org header.b="EEj5rKgf" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728329AbgCXU2Y (ORCPT ); Tue, 24 Mar 2020 16:28:24 -0400 Received: from mail-pf1-f196.google.com ([209.85.210.196]:39143 "EHLO mail-pf1-f196.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727910AbgCXU1x (ORCPT ); Tue, 24 Mar 2020 16:27:53 -0400 Received: by mail-pf1-f196.google.com with SMTP id d25so9886167pfn.6 for ; Tue, 24 Mar 2020 13:27:52 -0700 (PDT) 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=ZigHEZ9wEtW9T2r5IUfNO5JfwDcLltP6YCkvQNLzMZg=; b=EEj5rKgfO0GiydsW11KRCtfxlT6VWJWdckQbFJAHocKf9zxE4sh7bI+ssRJReWY5z+ NxlCQ7c95xJJJHBpzr4JznrxpF1Ugd+4ZaUHlfueHs3/NwQBCrXZ6lWOrabQWVYc+cB3 NxO81PWs+9IL3pXbOF6sghze+pvWw45GjQCIE= 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=ZigHEZ9wEtW9T2r5IUfNO5JfwDcLltP6YCkvQNLzMZg=; b=kl0KUXDvTbiiEq6aRnf0+5WDglgfO2/S0w3UXJDZD7opc106a39wLFEvpdWS7RR2EV h0zaMWA/Dzbm0lKzO8JEcLQDRTrN2FAwlyQMSTrFl1JvrPDox2Je5mJfbEmz+VSri4At PmFoLuJA75VDrs2CUz27uc4SCxhs7ILDaCelKIpHQof7D+pwyJj2/xygVQIXmXo68Zoi Ezq32iDdwZXgvHWP4QC5kUu1+BR94AX64R6/HyielwLk5IkUWUZlCGbJM5msAjpHfkNb ZSmT62XtYTUETuViojuSsAn8XEc7DwCtJ2w5WtCDbrFcx5sZyN719uBuiw/P0OXsgZ6v QTmw== X-Gm-Message-State: ANhLgQ0a0oSJ+pQjduMPtgQxsHq6sVKaevQuXMNT4xJwP7/Xf5fS+oEY mfkRJB1BgK+DARXHBzb0gRttaA== X-Google-Smtp-Source: ADFU+vtrlDmTwEE9oYXJAOdQ/zBHf+vMnBKpgHdCBI82QuEAs/PG/g2Tsj9vSxggT8MDEeA66ZFpyQ== X-Received: by 2002:a63:4f0c:: with SMTP id d12mr26233420pgb.199.1585081672376; Tue, 24 Mar 2020 13:27:52 -0700 (PDT) Received: from localhost ([2620:15c:202:1:4cc0:7eee:97c9:3c1a]) by smtp.gmail.com with ESMTPSA id o33sm2993992pje.19.2020.03.24.13.27.51 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Tue, 24 Mar 2020 13:27:51 -0700 (PDT) From: Gwendal Grignou To: bleung@chromium.org, enric.balletbo@collabora.com, Jonathan.Cameron@huawei.com Cc: linux-iio@vger.kernel.org, linux-kernel@vger.kernel.org, Gwendal Grignou Subject: [PATCH v6 05/11] iio: expose iio_device_set_clock Date: Tue, 24 Mar 2020 13:27:30 -0700 Message-Id: <20200324202736.243314-6-gwendal@chromium.org> X-Mailer: git-send-email 2.25.1.696.g5e7596f4ac-goog In-Reply-To: <20200324202736.243314-1-gwendal@chromium.org> References: <20200324202736.243314-1-gwendal@chromium.org> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Some IIO devices may want to override the default (realtime) to another clock source by default. It can beneficial when timestamps coming from the hardware or underlying drivers are already in that format. It can always be overridden by attribute current_timestamp_clock. Reviewed-by: Jonathan Cameron Signed-off-by: Gwendal Grignou --- Changes in v6: - No changes. Changes in v5: - New in v5. drivers/iio/industrialio-core.c | 8 +++++++- include/linux/iio/iio.h | 2 ++ 2 files changed, 9 insertions(+), 1 deletion(-) diff --git a/drivers/iio/industrialio-core.c b/drivers/iio/industrialio-core.c index 65ff0d0670188..26e963483bab0 100644 --- a/drivers/iio/industrialio-core.c +++ b/drivers/iio/industrialio-core.c @@ -189,7 +189,12 @@ ssize_t iio_read_const_attr(struct device *dev, } EXPORT_SYMBOL(iio_read_const_attr); -static int iio_device_set_clock(struct iio_dev *indio_dev, clockid_t clock_id) +/** + * iio_device_set_clock() - Set current timestamping clock for the device + * @indio_dev: IIO device structure containing the device + * @clock_id: timestamping clock posix identifier to set. + */ +int iio_device_set_clock(struct iio_dev *indio_dev, clockid_t clock_id) { int ret; const struct iio_event_interface *ev_int = indio_dev->event_interface; @@ -207,6 +212,7 @@ static int iio_device_set_clock(struct iio_dev *indio_dev, clockid_t clock_id) return 0; } +EXPORT_SYMBOL(iio_device_set_clock); /** * iio_get_time_ns() - utility function to get a time stamp for events etc diff --git a/include/linux/iio/iio.h b/include/linux/iio/iio.h index 862ce0019eba5..b18f34a8901f3 100644 --- a/include/linux/iio/iio.h +++ b/include/linux/iio/iio.h @@ -627,6 +627,8 @@ static inline clockid_t iio_device_get_clock(const struct iio_dev *indio_dev) return indio_dev->clock_id; } +int iio_device_set_clock(struct iio_dev *indio_dev, clockid_t clock_id); + /** * dev_to_iio_dev() - Get IIO device struct from a device struct * @dev: The device embedded in the IIO device -- 2.25.1.696.g5e7596f4ac-goog