From patchwork Wed Feb 17 08:34:33 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Alexandru Ardelean X-Patchwork-Id: 12091211 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-11.8 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI,SPF_HELO_NONE, SPF_PASS,USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 74674C433E0 for ; Wed, 17 Feb 2021 08:33:40 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 1F24564E33 for ; Wed, 17 Feb 2021 08:33:40 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231842AbhBQIdj (ORCPT ); Wed, 17 Feb 2021 03:33:39 -0500 Received: from mx0a-00128a01.pphosted.com ([148.163.135.77]:40520 "EHLO mx0a-00128a01.pphosted.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231666AbhBQIdg (ORCPT ); Wed, 17 Feb 2021 03:33:36 -0500 Received: from pps.filterd (m0167088.ppops.net [127.0.0.1]) by mx0a-00128a01.pphosted.com (8.16.0.43/8.16.0.43) with SMTP id 11H8UKC5026100; Wed, 17 Feb 2021 03:32:43 -0500 Received: from nwd2mta4.analog.com ([137.71.173.58]) by mx0a-00128a01.pphosted.com with ESMTP id 36p9gb2hu8-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Wed, 17 Feb 2021 03:32:43 -0500 Received: from SCSQMBX10.ad.analog.com (SCSQMBX10.ad.analog.com [10.77.17.5]) by nwd2mta4.analog.com (8.14.7/8.14.7) with ESMTP id 11H8WfGx055857 (version=TLSv1/SSLv3 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=FAIL); Wed, 17 Feb 2021 03:32:42 -0500 Received: from SCSQMBX10.ad.analog.com (10.77.17.5) by SCSQMBX10.ad.analog.com (10.77.17.5) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.721.2; Wed, 17 Feb 2021 00:32:40 -0800 Received: from zeus.spd.analog.com (10.66.68.11) by scsqmbx10.ad.analog.com (10.77.17.5) with Microsoft SMTP Server id 15.2.721.2 via Frontend Transport; Wed, 17 Feb 2021 00:32:40 -0800 Received: from localhost.localdomain ([10.48.65.12]) by zeus.spd.analog.com (8.15.1/8.15.1) with ESMTP id 11H8WWlE007757; Wed, 17 Feb 2021 03:32:34 -0500 From: Alexandru Ardelean To: , CC: , , , , , Alexandru Ardelean Subject: [PATCH v2 0/5] iio: Add output buffer support Date: Wed, 17 Feb 2021 10:34:33 +0200 Message-ID: <20210217083438.37865-1-alexandru.ardelean@analog.com> X-Mailer: git-send-email 2.17.1 MIME-Version: 1.0 X-ADIRuleOP-NewSCL: Rule Triggered X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10434:6.0.369,18.0.761 definitions=2021-02-17_06:2021-02-16,2021-02-17 signatures=0 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 lowpriorityscore=0 bulkscore=0 malwarescore=0 mlxlogscore=999 phishscore=0 clxscore=1015 mlxscore=0 priorityscore=1501 impostorscore=0 adultscore=0 spamscore=0 suspectscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2009150000 definitions=main-2102170064 Precedence: bulk List-ID: X-Mailing-List: linux-iio@vger.kernel.org This patchset is based on the new multibuffer set. It doesn't require the high-speed/mmap interface. That will come later on a v2. Changelog v1 -> v2: * https://lore.kernel.org/linux-iio/20210212102021.47276-4-alexandru.ardelean@analog.com/T/#u * removed DMA patches for now * in patch 'iio: Add output buffer support' - added /sys/bus/iio/devices/iio:deviceX/bufferY/direction attribute - thinking about this, an update to the new buffer infrastructure is required when adding ADDAC/MxFE/transceivers; right now there is no problem, because we have only ADCs and DACs; but when we get transceivers, a bufferY/ directory needs to filter in/out scan_elements/ ; this only occured to me recently (it's one of those things that pops up later in mind) * added 'iio: Documentation: update definitions for bufferY and scan_elements' - seems I forgot this on the original multibuffer patchset * added 'iio: triggered-buffer: extend support to configure output buffers' - basically output triggered buffer support * added 'iio: dac: ad5686: Add PWM as a trigger source' - this is a first user of this infrastructure Alexandru Ardelean (2): iio: Documentation: update definitions for bufferY and scan_elements iio: triggered-buffer: extend support to configure output buffers Lars-Peter Clausen (2): iio: Add output buffer support iio: kfifo-buffer: Add output buffer support Mircea Caprioru (1): iio: dac: ad5686: Add PWM as a trigger source Documentation/ABI/testing/sysfs-bus-iio | 92 +++++++++++ drivers/iio/accel/adxl372.c | 1 + drivers/iio/accel/bmc150-accel-core.c | 1 + drivers/iio/adc/at91-sama5d2_adc.c | 4 +- .../buffer/industrialio-triggered-buffer.c | 8 +- drivers/iio/buffer/kfifo_buf.c | 50 ++++++ .../cros_ec_sensors/cros_ec_sensors_core.c | 1 + .../common/hid-sensors/hid-sensor-trigger.c | 5 +- drivers/iio/dac/ad5686-spi.c | 2 +- drivers/iio/dac/ad5686.c | 146 +++++++++++++++++- drivers/iio/dac/ad5686.h | 7 +- drivers/iio/dac/ad5696-i2c.c | 2 +- drivers/iio/industrialio-buffer.c | 128 ++++++++++++++- include/linux/iio/buffer.h | 7 + include/linux/iio/buffer_impl.h | 11 ++ include/linux/iio/triggered_buffer.h | 11 +- 16 files changed, 459 insertions(+), 17 deletions(-)