From patchwork Fri Mar 18 16:27:19 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Alexandru Tachici X-Patchwork-Id: 12785635 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 56A45C4167B for ; Fri, 18 Mar 2022 16:18:03 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S238768AbiCRQTU (ORCPT ); Fri, 18 Mar 2022 12:19:20 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:32966 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S238778AbiCRQTK (ORCPT ); Fri, 18 Mar 2022 12:19:10 -0400 Received: from mx0a-00128a01.pphosted.com (mx0a-00128a01.pphosted.com [148.163.135.77]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 5DB3B16F044; Fri, 18 Mar 2022 09:17:51 -0700 (PDT) Received: from pps.filterd (m0167088.ppops.net [127.0.0.1]) by mx0a-00128a01.pphosted.com (8.16.1.2/8.16.1.2) with ESMTP id 22IE44PG002886; Fri, 18 Mar 2022 12:17:49 -0400 Received: from nwd2mta3.analog.com ([137.71.173.56]) by mx0a-00128a01.pphosted.com (PPS) with ESMTPS id 3evfqpcu74-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Fri, 18 Mar 2022 12:17:49 -0400 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 22IGHmWo035529 (version=TLSv1/SSLv3 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=FAIL); Fri, 18 Mar 2022 12:17:48 -0400 Received: from ASHBCASHYB5.ad.analog.com (10.64.17.133) 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; Fri, 18 Mar 2022 12:17:47 -0400 Received: from ASHBMBX8.ad.analog.com (10.64.17.5) by ASHBCASHYB5.ad.analog.com (10.64.17.133) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.986.14; Fri, 18 Mar 2022 12:17:47 -0400 Received: from zeus.spd.analog.com (10.66.68.11) by ashbmbx8.ad.analog.com (10.64.17.5) with Microsoft SMTP Server id 15.2.986.14 via Frontend Transport; Fri, 18 Mar 2022 12:17:47 -0400 Received: from localhost.localdomain ([10.48.65.12]) by zeus.spd.analog.com (8.15.1/8.15.1) with ESMTP id 22IGHWUk024583; Fri, 18 Mar 2022 12:17:42 -0400 From: To: , CC: , Alexandru Tachici Subject: [PATCH v2 5/8] iio: adc: ad7124: add sequencer support Date: Fri, 18 Mar 2022 18:27:19 +0200 Message-ID: <20220318162722.51215-6-alexandru.tachici@analog.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20220318162722.51215-1-alexandru.tachici@analog.com> References: <20220318162722.51215-1-alexandru.tachici@analog.com> MIME-Version: 1.0 X-ADIRuleOP-NewSCL: Rule Triggered X-Proofpoint-GUID: aNya-2jyES27A6u5ASBYuCKrvCjURcRG X-Proofpoint-ORIG-GUID: aNya-2jyES27A6u5ASBYuCKrvCjURcRG X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.205,Aquarius:18.0.850,Hydra:6.0.425,FMLib:17.11.64.514 definitions=2022-03-18_11,2022-03-15_01,2022-02-23_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 suspectscore=0 spamscore=0 malwarescore=0 bulkscore=0 lowpriorityscore=0 clxscore=1015 priorityscore=1501 mlxscore=0 mlxlogscore=999 adultscore=0 impostorscore=0 phishscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2202240000 definitions=main-2203180088 Precedence: bulk List-ID: X-Mailing-List: linux-iio@vger.kernel.org From: Alexandru Tachici Add sequencer support for AD7124. Signed-off-by: Alexandru Tachici --- drivers/iio/adc/ad7124.c | 32 +++++++++++++++++++++++++------- 1 file changed, 25 insertions(+), 7 deletions(-) diff --git a/drivers/iio/adc/ad7124.c b/drivers/iio/adc/ad7124.c index 428ec3e257d7..782b7cdd8ebe 100644 --- a/drivers/iio/adc/ad7124.c +++ b/drivers/iio/adc/ad7124.c @@ -43,6 +43,8 @@ #define AD7124_STATUS_POR_FLAG_MSK BIT(4) /* AD7124_ADC_CONTROL */ +#define AD7124_ADC_STATUS_EN_MSK BIT(10) +#define AD7124_ADC_STATUS_EN(x) FIELD_PREP(AD7124_ADC_STATUS_EN_MSK, x) #define AD7124_ADC_CTRL_REF_EN_MSK BIT(8) #define AD7124_ADC_CTRL_REF_EN(x) FIELD_PREP(AD7124_ADC_CTRL_REF_EN_MSK, x) #define AD7124_ADC_CTRL_PWR_MSK GENMASK(7, 6) @@ -512,14 +514,27 @@ static int ad7124_set_channel(struct ad_sigma_delta *sd, unsigned int channel) return ret; } +static int ad7124_append_status(struct ad_sigma_delta *sd, bool append) +{ + struct ad7124_state *st = container_of(sd, struct ad7124_state, sd); + + st->adc_control &= ~AD7124_ADC_STATUS_EN_MSK; + st->adc_control |= AD7124_ADC_STATUS_EN(append); + + return ad_sd_write_reg(&st->sd, AD7124_ADC_CONTROL, 2, st->adc_control); +} + static const struct ad_sigma_delta_info ad7124_sigma_delta_info = { .set_channel = ad7124_set_channel, + .append_status = ad7124_append_status, .set_mode = ad7124_set_mode, .has_registers = true, .addr_shift = 0, .read_mask = BIT(6), + .status_ch_mask = GENMASK(3, 0), .data_reg = AD7124_DATA, - .irq_flags = IRQF_TRIGGER_FALLING + .num_slots = 8, + .irq_flags = IRQF_TRIGGER_FALLING, }; static int ad7124_read_raw(struct iio_dev *indio_dev, @@ -679,10 +694,11 @@ static int ad7124_update_scan_mode(struct iio_dev *indio_dev, for (i = 0; i < st->num_channels; i++) { bit_set = test_bit(i, scan_mask); - ret = ad7124_spi_write_mask(st, AD7124_CHANNEL(i), - AD7124_CHANNEL_EN_MSK, - AD7124_CHANNEL_EN(bit_set), - 2); + if (bit_set) + ret = ad7124_set_channel(&st->sd, i); + else + ret = ad7124_spi_write_mask(st, AD7124_CHANNEL(i), AD7124_CHANNEL_EN_MSK, + 0, 2); if (ret < 0) return ret; } @@ -906,12 +922,14 @@ static int ad7124_probe(struct spi_device *spi) st->chip_info = info; - ad_sd_init(&st->sd, indio_dev, spi, &ad7124_sigma_delta_info); - indio_dev->name = st->chip_info->name; indio_dev->modes = INDIO_DIRECT_MODE; indio_dev->info = &ad7124_info; + ret = ad_sd_init(&st->sd, indio_dev, spi, &ad7124_sigma_delta_info); + if (ret < 0) + return ret; + ret = ad7124_of_parse_channel_config(indio_dev, spi->dev.of_node); if (ret < 0) return ret;