From patchwork Fri Jan 17 13:06:55 2025 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Antoniu Miclaus X-Patchwork-Id: 13943313 Received: from mx0b-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 D69D31FFC6B; Fri, 17 Jan 2025 13:07:51 +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=1737119273; cv=none; b=abIejATOFq/5lB4hfWDHU7tCVxLdQNRCsl2pr03/i06yyFO1Fz7Ruut/g/0RhMIIKhA2IIIyVojZZHAlDGpY5oPWcSu54Gw0/8EHtM3sDOyT6d6VhZAnb5aZhUVAsQBMdp3pQygSDdo5bMa/LEo7z3C0iwi4LYwmPzUNYyNPqOw= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1737119273; c=relaxed/simple; bh=SihmYwaGpKU86Twwbv7Q0bPr69UDEP3gVGZVpLEUnnQ=; h=From:To:CC:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version:Content-Type; b=a9gVD1suby1g812jpbWRN9mFVsVCO9v/n/v+H9j+Rb3Si7pCS+0ZKKsUKUJFNnXIiDfwBEnQbxi33jZkMa8iJfKo7kV7NfxHCqy5kJ0nAjHb2cWSlEID53Z+rVqH+0BO1LsVB+kZbFCs8j/M/XqdtbMqMz8EmDTK6ClBPEcB2cQ= 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=wpMblUFC; 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="wpMblUFC" Received: from pps.filterd (m0375855.ppops.net [127.0.0.1]) by mx0b-00128a01.pphosted.com (8.18.1.2/8.18.1.2) with ESMTP id 50HAhR2u023548; Fri, 17 Jan 2025 08:07:19 -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=fQwlF Sb3zuRFsyyEBiuGn5S2NLgFnofkTOztW2/FrA4=; b=wpMblUFCGCtRqoLAtgul1 qnnK/odY6Gp4zkcxGsBs+vVvqI+tOZFqepAcu+I824y8e9GUDWJeUqaRYFszHy0E vmVprE4vroUPK8oroQ2EuCRjuy13Rxj9lcgwRLoIBAsaNgdF030nIkN4gqB+oOo8 5wUeULriXTJKf+wZV5XFfLRIBDV4xuzdGfSoVyIVvIl3iR0amWK3T4PMZnFv7fVR HYRPqc2bAckzUI+BNQ91NszZxokurOnFWaRbswYnGiOeSDgWeLZrtL4Ehr2FGSmr 5PkKlMt/DotVsiW/aINRv5gHCfTA41EUgq7H2p0rzmhbA+c4js6+ZWLMVKW2KrXe Q== Received: from nwd2mta4.analog.com ([137.71.173.58]) by mx0b-00128a01.pphosted.com (PPS) with ESMTPS id 447nq10ge7-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Fri, 17 Jan 2025 08:07:19 -0500 (EST) Received: from ASHBMBX8.ad.analog.com (ASHBMBX8.ad.analog.com [10.64.17.5]) by nwd2mta4.analog.com (8.14.7/8.14.7) with ESMTP id 50HD7I0F027795 (version=TLSv1/SSLv3 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=FAIL); Fri, 17 Jan 2025 08:07:18 -0500 Received: from ASHBMBX9.ad.analog.com (10.64.17.10) by ASHBMBX8.ad.analog.com (10.64.17.5) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.986.14; Fri, 17 Jan 2025 08:07:18 -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; Fri, 17 Jan 2025 08:07:18 -0500 Received: from amiclaus-VirtualBox.ad.analog.com (AMICLAUS-L02.ad.analog.com [10.48.65.159]) by zeus.spd.analog.com (8.15.1/8.15.1) with ESMTP id 50HD764j013564; Fri, 17 Jan 2025 08:07:12 -0500 From: Antoniu Miclaus To: , , , , , , CC: Antoniu Miclaus , David Lechner Subject: [PATCH v10 1/8] iio: backend: add API for interface get Date: Fri, 17 Jan 2025 15:06:55 +0200 Message-ID: <20250117130702.22588-2-antoniu.miclaus@analog.com> X-Mailer: git-send-email 2.48.1 In-Reply-To: <20250117130702.22588-1-antoniu.miclaus@analog.com> References: <20250117130702.22588-1-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-ORIG-GUID: XwKzP4ftOHFFKQo_LvPXLN1im2ygjheu X-Proofpoint-GUID: XwKzP4ftOHFFKQo_LvPXLN1im2ygjheu X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1057,Hydra:6.0.680,FMLib:17.12.68.34 definitions=2025-01-17_05,2025-01-16_01,2024-11-22_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 bulkscore=0 priorityscore=1501 suspectscore=0 phishscore=0 mlxlogscore=999 adultscore=0 lowpriorityscore=0 clxscore=1015 impostorscore=0 malwarescore=0 spamscore=0 mlxscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.19.0-2411120000 definitions=main-2501170106 Add backend support for obtaining the interface type used. Reviewed-by: David Lechner Signed-off-by: Antoniu Miclaus Reviewed-by: Nuno Sa --- no changes in v10. drivers/iio/industrialio-backend.c | 24 ++++++++++++++++++++++++ include/linux/iio/backend.h | 11 +++++++++++ 2 files changed, 35 insertions(+) diff --git a/drivers/iio/industrialio-backend.c b/drivers/iio/industrialio-backend.c index 363281272035..8bf3d570da1b 100644 --- a/drivers/iio/industrialio-backend.c +++ b/drivers/iio/industrialio-backend.c @@ -636,6 +636,30 @@ ssize_t iio_backend_ext_info_set(struct iio_dev *indio_dev, uintptr_t private, } EXPORT_SYMBOL_NS_GPL(iio_backend_ext_info_set, "IIO_BACKEND"); +/** + * iio_backend_interface_type_get - get the interface type used. + * @back: Backend device + * @type: Interface type + * + * RETURNS: + * 0 on success, negative error number on failure. + */ +int iio_backend_interface_type_get(struct iio_backend *back, + enum iio_backend_interface_type *type) +{ + int ret; + + ret = iio_backend_op_call(back, interface_type_get, type); + if (ret) + return ret; + + if (*type >= IIO_BACKEND_INTERFACE_MAX) + return -EINVAL; + + return 0; +} +EXPORT_SYMBOL_NS_GPL(iio_backend_interface_type_get, "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 10be00f3b120..a0ea6c29d7ba 100644 --- a/include/linux/iio/backend.h +++ b/include/linux/iio/backend.h @@ -70,6 +70,12 @@ enum iio_backend_sample_trigger { IIO_BACKEND_SAMPLE_TRIGGER_MAX }; +enum iio_backend_interface_type { + IIO_BACKEND_INTERFACE_SERIAL_LVDS, + IIO_BACKEND_INTERFACE_SERIAL_CMOS, + IIO_BACKEND_INTERFACE_MAX +}; + /** * struct iio_backend_ops - operations structure for an iio_backend * @enable: Enable backend. @@ -88,6 +94,7 @@ enum iio_backend_sample_trigger { * @extend_chan_spec: Extend an IIO channel. * @ext_info_set: Extended info setter. * @ext_info_get: Extended info getter. + * @interface_type_get: Interface type. * @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. @@ -128,6 +135,8 @@ struct iio_backend_ops { const char *buf, size_t len); int (*ext_info_get)(struct iio_backend *back, uintptr_t private, const struct iio_chan_spec *chan, char *buf); + int (*interface_type_get)(struct iio_backend *back, + enum iio_backend_interface_type *type); int (*read_raw)(struct iio_backend *back, struct iio_chan_spec const *chan, int *val, int *val2, long mask); @@ -186,6 +195,8 @@ ssize_t iio_backend_ext_info_set(struct iio_dev *indio_dev, uintptr_t private, const char *buf, size_t len); ssize_t iio_backend_ext_info_get(struct iio_dev *indio_dev, uintptr_t private, const struct iio_chan_spec *chan, char *buf); +int iio_backend_interface_type_get(struct iio_backend *back, + enum iio_backend_interface_type *type); int iio_backend_read_raw(struct iio_backend *back, struct iio_chan_spec const *chan, int *val, int *val2, long mask);