From patchwork Wed Jul 3 16:05:27 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Olivier Moysan X-Patchwork-Id: 13722511 Received: from mx07-00178001.pphosted.com (mx07-00178001.pphosted.com [185.132.182.106]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id EBB5E181D17; Wed, 3 Jul 2024 16:07:21 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=185.132.182.106 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1720022843; cv=none; b=ityU2vp9dnHH7QrVWLh/5MIzv3oLWlvcPNUn9OH37WdkNUnDBk0U7bST6I1pYH5v7UxbokWb1o1GyJDsR8Yet7T8InjTbff8dO+2lCaNrtK/04ByUocaaO+3dNO9j4WQe3Iqgrk4RnquhO+daPGssG/xQefuAM/dKDbkE2hxXcg= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1720022843; c=relaxed/simple; bh=oaRZ3GdBLv8lrcnBNZCqoe/sQP4YaYVQ14PwYrNcr58=; h=From:To:CC:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version:Content-Type; b=WwaqbNQGRz3r7JidsYlynbwrlBwwSTeGqIdKDTSsBFmhk6FvEbZ9MJL/MWCpz6DcXsCQiYjWf1s9t4tPZYJWgSaog+EcUAnQ6YH4OHq1BcvoXIczijpItNzBQGu2Mz50sJ6KLEyMihluWn6LrnH7cHm4AAmk6lJTOZDLa/eYTXs= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=foss.st.com; spf=pass smtp.mailfrom=foss.st.com; dkim=pass (2048-bit key) header.d=foss.st.com header.i=@foss.st.com header.b=u9scog57; arc=none smtp.client-ip=185.132.182.106 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=foss.st.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=foss.st.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=foss.st.com header.i=@foss.st.com header.b="u9scog57" Received: from pps.filterd (m0288072.ppops.net [127.0.0.1]) by mx07-00178001.pphosted.com (8.18.1.2/8.18.1.2) with ESMTP id 463FJojl022188; Wed, 3 Jul 2024 18:06:59 +0200 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=foss.st.com; h= cc:content-transfer-encoding:content-type:date:from:in-reply-to :message-id:mime-version:references:subject:to; s=selector1; bh= o4A1BVBAi23p4fb0FEHwr5os2jESJIcp0IL+eEhr6sw=; b=u9scog57i9jt4YIW PMPr5TFq/RtRMUyXPcD8b/m02bchQ8jR4cTGv2/jf5L45n2YYEmzMluTVtMbD0pW qrhWCO0KMwBrtpc3Nts+zSmrJI7NPK17ifG0z+3HufeeoLvg8yx+funIgOXDwOij dyl78BrntNQUfcDm1EUaICAd7Vl5B3zyoZ323KaOpglQ8VLVGJ7LGW4MOGeTNyTl SWnjgzGKmcfQRpZQeLnsPxEaRw2eoWYakX5wrJhABbOZIyMQKWlQWbXk9ZdyCaVk 85FyDk9uL+FiZbW8HDLQGsYNmzi8MSgeENdux183cggJBeUnlJni0LUkdgxwuCJI yRlA1w== Received: from beta.dmz-ap.st.com (beta.dmz-ap.st.com [138.198.100.35]) by mx07-00178001.pphosted.com (PPS) with ESMTPS id 4027pgstby-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Wed, 03 Jul 2024 18:06:59 +0200 (MEST) Received: from euls16034.sgp.st.com (euls16034.sgp.st.com [10.75.44.20]) by beta.dmz-ap.st.com (STMicroelectronics) with ESMTP id C8E0F40048; Wed, 3 Jul 2024 18:06:50 +0200 (CEST) Received: from Webmail-eu.st.com (shfdag1node1.st.com [10.75.129.69]) by euls16034.sgp.st.com (STMicroelectronics) with ESMTP id 2D55A2291AC; Wed, 3 Jul 2024 18:06:28 +0200 (CEST) Received: from localhost (10.252.27.110) by SHFDAG1NODE1.st.com (10.75.129.69) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2507.35; Wed, 3 Jul 2024 18:06:27 +0200 From: Olivier Moysan To: Nuno Sa , Olivier Moysan , Jonathan Cameron , Lars-Peter Clausen CC: , Subject: [PATCH v3 2/8] iio: add enable and disable services to iio backend framework Date: Wed, 3 Jul 2024 18:05:27 +0200 Message-ID: <20240703160535.2277871-3-olivier.moysan@foss.st.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20240703160535.2277871-1-olivier.moysan@foss.st.com> References: <20240703160535.2277871-1-olivier.moysan@foss.st.com> Precedence: bulk X-Mailing-List: linux-iio@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-ClientProxiedBy: SHFCAS1NODE2.st.com (10.75.129.73) To SHFDAG1NODE1.st.com (10.75.129.69) X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1039,Hydra:6.0.680,FMLib:17.12.28.16 definitions=2024-07-03_11,2024-07-03_01,2024-05-17_01 Add iio_backend_disable() and iio_backend_enable() APIs to allow IIO backend consumer to request backend disabling and enabling. Signed-off-by: Olivier Moysan Reviewed-by: Nuno Sa --- drivers/iio/industrialio-backend.c | 25 ++++++++++++++++++++++++- include/linux/iio/backend.h | 2 ++ 2 files changed, 26 insertions(+), 1 deletion(-) diff --git a/drivers/iio/industrialio-backend.c b/drivers/iio/industrialio-backend.c index 1d3d6dbdcc4e..bb6aac68979f 100644 --- a/drivers/iio/industrialio-backend.c +++ b/drivers/iio/industrialio-backend.c @@ -146,6 +146,29 @@ static void __iio_backend_disable(void *back) iio_backend_void_op_call(back, disable); } +/** + * iio_backend_disable - Backend disable + * @back: Backend device + */ +void iio_backend_disable(struct iio_backend *back) +{ + __iio_backend_disable(back); +} +EXPORT_SYMBOL_NS_GPL(iio_backend_disable, IIO_BACKEND); + +/** + * iio_backend_enable - Backend enable + * @back: Backend device + * + * RETURNS: + * 0 on success, negative error number on failure. + */ +int iio_backend_enable(struct iio_backend *back) +{ + return iio_backend_op_call(back, enable); +} +EXPORT_SYMBOL_NS_GPL(iio_backend_enable, IIO_BACKEND); + /** * devm_iio_backend_enable - Device managed backend enable * @dev: Consumer device for the backend @@ -158,7 +181,7 @@ int devm_iio_backend_enable(struct device *dev, struct iio_backend *back) { int ret; - ret = iio_backend_op_call(back, enable); + ret = iio_backend_enable(back); if (ret) return ret; diff --git a/include/linux/iio/backend.h b/include/linux/iio/backend.h index cbad233ae9f2..696997f2c0d6 100644 --- a/include/linux/iio/backend.h +++ b/include/linux/iio/backend.h @@ -121,6 +121,8 @@ struct iio_backend_ops { int iio_backend_chan_enable(struct iio_backend *back, unsigned int chan); int iio_backend_chan_disable(struct iio_backend *back, unsigned int chan); int devm_iio_backend_enable(struct device *dev, struct iio_backend *back); +int iio_backend_enable(struct iio_backend *back); +void iio_backend_disable(struct iio_backend *back); int iio_backend_data_format_set(struct iio_backend *back, unsigned int chan, const struct iio_backend_data_fmt *data); int iio_backend_data_source_set(struct iio_backend *back, unsigned int chan,