From patchwork Mon Nov 11 12:11:58 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Miclaus, Antoniu" X-Patchwork-Id: 13870663 Received: from mx0a-00128a01.pphosted.com (mx0a-00128a01.pphosted.com [148.163.135.77]) (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 2A5D119E997; Mon, 11 Nov 2024 12:12:37 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=148.163.135.77 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1731327160; cv=none; b=kHisJVObj2Is0uHYp6ddTKnWFKJoB6b48R6KLGBTT/FgZVFSPBjGLMSOVcw4kwIYFq+Awh0r5J/t6hZYvI+i+yRsAJJTeeT97q1KuP198J2Dr60DYYYilBi+DvzO31tykQe0/tHI4zQRFM8sKyd4Xwl6evke0P2koMeJ7A1lCSA= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1731327160; c=relaxed/simple; bh=DPX+1Ql+9H03Oju6y/3FEvyoPe1XafQYonZ6gblW1Pw=; h=From:To:CC:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version:Content-Type; b=iFiw3ntX3+V/cyhPqaWl5Q1WLvMGcVgeZWrBDArIJiKnJMxpJzDf2QnlUZ1uOv1vbgfAf4Xlf7Ia3ocw+4fxlq02WULa0/Ey9c8vT/qnxQyr0MmDf4c/Ce12LylwCWXiN719AkacH6bUR6hYjLEt+Bq0X+KdhUVjpuJssGi0q9o= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=analog.com; spf=pass smtp.mailfrom=analog.com; dkim=pass (2048-bit key) header.d=analog.com header.i=@analog.com header.b=mQjWUgil; arc=none smtp.client-ip=148.163.135.77 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=analog.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=analog.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=analog.com header.i=@analog.com header.b="mQjWUgil" Received: from pps.filterd (m0167089.ppops.net [127.0.0.1]) by mx0a-00128a01.pphosted.com (8.18.1.2/8.18.1.2) with ESMTP id 4ABA1xV2027560; Mon, 11 Nov 2024 07:12:33 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=analog.com; h=cc :content-transfer-encoding:content-type:date:from:in-reply-to :message-id:mime-version:references:subject:to; s=DKIM; bh=bdhA3 YaNxnrOz5RzgsjoHnTurDvNHsG6dbtH22brN54=; b=mQjWUgilt8Oh2qPLNnMn4 eHSzl8W8kxf3uJdBXFQ+iUCTWwQSyaHHqdSnjMHySg0xJsZxqWyQNK0oFdJRLA+R 916rJmw4rMG16vhH8LyLxAn3GyeL315nuSwYAsYa27/xoYOUsFPuEQpc/d90Zz0/ 7/iqVCJQv5Ke8ECpEVAzYPI2nHccvu2BlZRbA9/oggyo7/YBGyxr8YEd55yyY2mV pQLaDNbt6ejbZ4KHoEMGUgAOmQdciIlxwJ8fh7HV7uYpyw+V20fjRcEPlg7cNF+6 SGoCj1g1aYDL9eMhXeA+KlsgX+FsnvUWCghCyVP6m94fx5iOjZ7pg/EOd7rKeeGr g== Received: from nwd2mta3.analog.com ([137.71.173.56]) by mx0a-00128a01.pphosted.com (PPS) with ESMTPS id 42t5h5xw34-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Mon, 11 Nov 2024 07:12:32 -0500 (EST) Received: from ASHBMBX9.ad.analog.com (ASHBMBX9.ad.analog.com [10.64.17.10]) by nwd2mta3.analog.com (8.14.7/8.14.7) with ESMTP id 4ABCCV69025108 (version=TLSv1/SSLv3 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=FAIL); Mon, 11 Nov 2024 07:12:31 -0500 Received: from ASHBCASHYB4.ad.analog.com (10.64.17.132) by ASHBMBX9.ad.analog.com (10.64.17.10) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.986.14; Mon, 11 Nov 2024 07:12:31 -0500 Received: from ASHBMBX9.ad.analog.com (10.64.17.10) by ASHBCASHYB4.ad.analog.com (10.64.17.132) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.986.14; Mon, 11 Nov 2024 07:12:31 -0500 Received: from zeus.spd.analog.com (10.66.68.11) by ashbmbx9.ad.analog.com (10.64.17.10) with Microsoft SMTP Server id 15.2.986.14 via Frontend Transport; Mon, 11 Nov 2024 07:12:31 -0500 Received: from amiclaus-VirtualBox.ad.analog.com ([10.65.36.213]) by zeus.spd.analog.com (8.15.1/8.15.1) with ESMTP id 4ABCCFEM010000; Mon, 11 Nov 2024 07:12:25 -0500 From: Antoniu Miclaus To: , , , , , , , CC: Antoniu Miclaus Subject: [PATCH v6 3/8] iio: backend: add API for oversampling Date: Mon, 11 Nov 2024 14:11:58 +0200 Message-ID: <20241111121203.3699-4-antoniu.miclaus@analog.com> X-Mailer: git-send-email 2.47.0 In-Reply-To: <20241111121203.3699-1-antoniu.miclaus@analog.com> References: <20241111121203.3699-1-antoniu.miclaus@analog.com> Precedence: bulk X-Mailing-List: linux-iio@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-ADIRuleOP-NewSCL: Rule Triggered X-Proofpoint-GUID: FJHFDdkjd-eipz59409HxU7RStMm2VFY X-Proofpoint-ORIG-GUID: FJHFDdkjd-eipz59409HxU7RStMm2VFY X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1039,Hydra:6.0.680,FMLib:17.12.60.29 definitions=2024-09-06_09,2024-09-06_01,2024-09-02_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 impostorscore=0 bulkscore=0 phishscore=0 mlxlogscore=999 adultscore=0 lowpriorityscore=0 suspectscore=0 mlxscore=0 priorityscore=1501 spamscore=0 malwarescore=0 clxscore=1015 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.19.0-2409260000 definitions=main-2411110101 Add backend support for enabling/disabling oversampling. Signed-off-by: Antoniu Miclaus --- changes in v6: - add iio backend commit for oversampling enable/disable drivers/iio/industrialio-backend.c | 14 ++++++++++++++ include/linux/iio/backend.h | 3 +++ 2 files changed, 17 insertions(+) diff --git a/drivers/iio/industrialio-backend.c b/drivers/iio/industrialio-backend.c index ea184fc2c838..6ba445ba3dd0 100644 --- a/drivers/iio/industrialio-backend.c +++ b/drivers/iio/industrialio-backend.c @@ -681,6 +681,20 @@ int iio_backend_data_size_set(struct iio_backend *back, unsigned int size) } EXPORT_SYMBOL_NS_GPL(iio_backend_data_size_set, IIO_BACKEND); +/** + * iio_backend_oversampling_en - set the data width/size in the data bus. + * @back: Backend device + * @en: oversampling enabled/disabled. + * + * Return: + * 0 on success, negative error number on failure. + */ +int iio_backend_oversampling_en(struct iio_backend *back, bool en) +{ + return iio_backend_op_call(back, oversampling_en, en); +} +EXPORT_SYMBOL_NS_GPL(iio_backend_oversampling_en, IIO_BACKEND); + /** * iio_backend_extend_chan_spec - Extend an IIO channel * @back: Backend device diff --git a/include/linux/iio/backend.h b/include/linux/iio/backend.h index 59b6651b7eaf..b8f63823b3db 100644 --- a/include/linux/iio/backend.h +++ b/include/linux/iio/backend.h @@ -94,6 +94,7 @@ enum iio_backend_interface_type { * @ext_info_get: Extended info getter. * @interface_type_get: Interface type. * @data_size_set: Data size. + * @oversampling_en: Oversampling. * @read_raw: Read a channel attribute from a backend device * @debugfs_print_chan_status: Print channel status into a buffer. * @debugfs_reg_access: Read or write register value of backend. @@ -132,6 +133,7 @@ struct iio_backend_ops { int (*interface_type_get)(struct iio_backend *back, enum iio_backend_interface_type *type); int (*data_size_set)(struct iio_backend *back, unsigned int size); + int (*oversampling_en)(struct iio_backend *back, bool en); int (*read_raw)(struct iio_backend *back, struct iio_chan_spec const *chan, int *val, int *val2, long mask); @@ -183,6 +185,7 @@ ssize_t iio_backend_ext_info_get(struct iio_dev *indio_dev, uintptr_t private, int iio_backend_interface_type_get(struct iio_backend *back, enum iio_backend_interface_type *type); int iio_backend_data_size_set(struct iio_backend *back, unsigned int size); +int iio_backend_oversampling_en(struct iio_backend *back, bool en); int iio_backend_read_raw(struct iio_backend *back, struct iio_chan_spec const *chan, int *val, int *val2, long mask);