From patchwork Tue Jul 30 08:46:32 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Olivier Moysan X-Patchwork-Id: 13747059 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 7374E192B9B; Tue, 30 Jul 2024 08:48:51 +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=1722329333; cv=none; b=Oj9XrArxZIq+KqgRx2bIZrqxsJ/I7aZ50uyAQSqVsCPWlFJpzBsZDwfnMdGxwB4SF/gHL1YHwy0eozGIKLmEoWlZlWyUsX1rN010xfZuMXOZ9PCWn1ILlz4ZliH6zy8KvLY4YpZ+I0ADlpr/HU2+xFX+NOZvbKooWc6Vsh5T3Wo= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1722329333; c=relaxed/simple; bh=/Aq309fEJ+Po2qLIink1l6xapJxeqax8AyON9pHaqqA=; h=From:To:CC:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version:Content-Type; b=oCiTRzEgpmGalpWy+G/OLsEbZLFrA/vxt91MUFp0/sfgY9bIFMN5XYyU3ILKaa9z6cphhcp1vPa2pdd9xUk4xluBXrwEW0JydyjIaRePxgesajWbdKmUozDsbtw5G9dKVUDmFmBA3fQSUpSqY3wLLJOLvEk5LPj9rGlQuZzBjoI= 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=wP7tM4Jp; 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="wP7tM4Jp" Received: from pps.filterd (m0369458.ppops.net [127.0.0.1]) by mx07-00178001.pphosted.com (8.18.1.2/8.18.1.2) with ESMTP id 46U60v73028193; Tue, 30 Jul 2024 10:48:30 +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= oemq5k4NNHYaMwsZ+8EWpjsIvvc93Y9ynTIpRlDHi3c=; b=wP7tM4JpMGxvtaKU 04lsk4/vq79spM4rKOBmz3QgKYYWLWq4iWkLgsBG4xzBkJ6Xl30Nv0wXc0PNkWua VjXHahmWpJZZubT1fP9RjM+/O9xE06n9XcsQIxcEWLgUp/9jNq2tn2whsyv/jWwT b5O8JfGZm5Ym7d7rS0WBOXxlODiiRj5zs2gpu7J7y8VbvzjPB6OqylnoRm75f7lf iHuDEZkwQnHfOuyirtGSDjp3goT7p6Cl4IDKQ14FzyqvOhYqPl2sG4KXCH9PZ68w 1C8/VvjDPpzbs9ZLUSbgg920eJ8otd/hwyPpQBk2TeE/e3zpdBhFz2CiBuobuQ3k XgaH/w== 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 40naf29dwk-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Tue, 30 Jul 2024 10:48:30 +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 BC4BF40044; Tue, 30 Jul 2024 10:48:21 +0200 (CEST) Received: from Webmail-eu.st.com (shfdag1node1.st.com [10.75.129.69]) by euls16034.sgp.st.com (STMicroelectronics) with ESMTP id 0886821F0C6; Tue, 30 Jul 2024 10:47:17 +0200 (CEST) Received: from localhost (10.252.3.32) 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 15.1.2507.37; Tue, 30 Jul 2024 10:47:16 +0200 From: Olivier Moysan To: , Nuno Sa , Olivier Moysan , Jonathan Cameron , Lars-Peter Clausen CC: , Subject: [PATCH v6 2/9] iio: add enable and disable services to iio backend framework Date: Tue, 30 Jul 2024 10:46:32 +0200 Message-ID: <20240730084640.1307938-3-olivier.moysan@foss.st.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20240730084640.1307938-1-olivier.moysan@foss.st.com> References: <20240730084640.1307938-1-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: EQNCAS1NODE3.st.com (10.75.129.80) 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=2024-07-30_09,2024-07-26_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 72dc82a42d8f..b53904b03464 100644 --- a/drivers/iio/industrialio-backend.c +++ b/drivers/iio/industrialio-backend.c @@ -150,6 +150,29 @@ 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 @@ -162,7 +185,7 @@ 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 18b20426c25e..25fce30f08d8 100644 --- a/include/linux/iio/backend.h +++ b/include/linux/iio/backend.h @@ -123,6 +123,8 @@ 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,