From patchwork Mon Jan 27 10:57:19 2025 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Miclaus, Antoniu" X-Patchwork-Id: 13951230 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 E89C31FECA5; Mon, 27 Jan 2025 10:57:48 +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=1737975470; cv=none; b=gdXguYD5n81oqwH2JtNMPqmihF6qMYkBI2pApdc/WkqgCw+9+mE/8Un8Q81QLG0AXEUIG36Ovkn4eT0+5rS+OzaVQW1RkTAHbXiUL3TKDuc9T420zZaIWrt3aj35MuoEaMMMc1zDBJQbEccoV2z8ZR8+gMuq22bWCAUt2jzXHLM= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1737975470; c=relaxed/simple; bh=MhBn2gPGgq6j8pKC4XB7J3SH9D5rkGXDJMrrKJ3BZco=; h=From:To:CC:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version:Content-Type; b=EeC7s/U9/qzHSk1Gim/LAqHcNKeZu1lGrMdDq+2IhjMhAk/Jl1MSEQm7Kj43Lz5wpbHtEex7eX/Z5uKfXE5J028NNmlzVgIwOuCovE6vP0yWi7YoKInkQvdkC0oWLqfk/qrfmb3s8MYAM4wg/07ZFGQkzGliCODJhYRGnbvkQD4= 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=VS++SDYW; 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="VS++SDYW" Received: from pps.filterd (m0167088.ppops.net [127.0.0.1]) by mx0a-00128a01.pphosted.com (8.18.1.2/8.18.1.2) with ESMTP id 50R7R7bw005719; Mon, 27 Jan 2025 05:57:45 -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=wVtv6 K3syb1K2l4K4dJ6l4jLiOREqgjYq66VXVwBlEc=; b=VS++SDYW/TU3OK/CsBNJg vEbllILaVGRIUmo5UGLFSw9Ao39X05Oe3ljFx9Ad8BZGAJi5wzNgNN3f8GYbIP2s CFkiKwLVlj6WPIUa8h9jBCPqNXQ2EYfLX0heuzUCgdPezc7NqxQv/kKJ+2ScRIrz BGd+6CBzTMnaa2Tzsh6U1TXq2uq7i1tY8Z8iB0mtAw48B1NRfGh0MSoUxmRtdTku iR5/me2mPHkGbySrDZHN6j/Rc870Y9rR/51OXHoJXUvah7jThD1Coc2etWUXp2In OrIktQm/HD8Ko2nRlLdauoDCsblXQg3UnkuexyGEMSLyPMCTA/NYN4NyPI4aqgtD A== Received: from nwd2mta4.analog.com ([137.71.173.58]) by mx0a-00128a01.pphosted.com (PPS) with ESMTPS id 44e0qwht2v-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Mon, 27 Jan 2025 05:57:45 -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 50RAviVg001772 (version=TLSv1/SSLv3 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=FAIL); Mon, 27 Jan 2025 05:57:44 -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; Mon, 27 Jan 2025 05:57:44 -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, 27 Jan 2025 05:57:44 -0500 Received: from amiclaus-VirtualBox.ad.analog.com (AMICLAUS-L02.ad.analog.com [10.48.65.165]) by zeus.spd.analog.com (8.15.1/8.15.1) with ESMTP id 50RAvUT7018078; Mon, 27 Jan 2025 05:57:36 -0500 From: Antoniu Miclaus To: , , , , , , CC: Antoniu Miclaus , Nuno Sa , David Lechner Subject: [PATCH v11 1/8] iio: backend: add API for interface get Date: Mon, 27 Jan 2025 12:57:19 +0200 Message-ID: <20250127105726.6314-2-antoniu.miclaus@analog.com> X-Mailer: git-send-email 2.48.1 In-Reply-To: <20250127105726.6314-1-antoniu.miclaus@analog.com> References: <20250127105726.6314-1-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: e3xuSQD-vNA-fz1-jmvE_dEfXNn8xfhl X-Proofpoint-ORIG-GUID: e3xuSQD-vNA-fz1-jmvE_dEfXNn8xfhl 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=2025-01-27_04,2025-01-27_01,2024-11-22_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 impostorscore=0 spamscore=0 lowpriorityscore=0 adultscore=0 mlxlogscore=999 suspectscore=0 priorityscore=1501 malwarescore=0 clxscore=1015 phishscore=0 mlxscore=0 bulkscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.19.0-2411120000 definitions=main-2501270088 Add backend support for obtaining the interface type used. Reviewed-by: Nuno Sa Reviewed-by: David Lechner Signed-off-by: Antoniu Miclaus --- no changes in v11. 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);