From patchwork Fri Jan 17 13:06:58 2025 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Antoniu Miclaus X-Patchwork-Id: 13943308 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 D8BF91FF61B; Fri, 17 Jan 2025 13:07:27 +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=1737119249; cv=none; b=Ebe84XtPw2/JgbDK7IUCSOxf65dSardPOLdMaJ6AZ15UxFmzu9iCI0y0zl0rqjP2M40Hj4OZH07jewb+fkVbK9MWp+CoekrTLuQ22t2yX5s/X3O3XPmH9UCSaAuhUT0T02z7P+MCF6jWcS9pDEk6wM9/oHDvm+ZVAltIOHktfas= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1737119249; c=relaxed/simple; bh=Q5Fqzes5YMepQZq5xoFOu8k4cUl+9RQhGCxcy6Ai8fQ=; h=From:To:CC:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version:Content-Type; b=Vq4s+xlPJv+qMcUJtKvhibPiUgBltFYRZ7lrY9ASCfQBEhki0lDNOlVzET48jesB7jmP6rrpkVpR2rsU+cjCUJbJNJWT4nCXjrsR4itZzyqQtb5e7NGqY9TN2VLT4rwYO2Bgal413lQhiYIF9OYl2W7wRSqlsnN3b83ItkF51OQ= 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=rqDIq7qn; 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="rqDIq7qn" 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 50H90AA2025639; Fri, 17 Jan 2025 08:07:24 -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=F9UVj c0CF6s4nDGRJmM2WAQ8EHaOL+/f8DeHyiSMiq0=; b=rqDIq7qn3i/r23vC3W09M aBSs/NDXuYuLQkecu/xeVAJ4YI9tfYs4pmWGMBhf+Zzs7kmEZ1A1TQ7XqZVqQVk1 vUlaGxunqHRlD8u9GHo8vpV++sgl5ueAEayJgt0npUkI/GroJbWxeaO4YigLOVQE G6tCgh5mJ5tNIQWYB4vtRJAqyJQiCyyDaCL/9WPRv/hfIyP+s3608w1qSKhoLolD S7RZyialNhmDaH7KP+lHXNxLoYB6H7Pr6IE8+RRq3LkDJVFE1YdiHcc+KHEDfSCo fiSyP/M2W7ivbCuXc0Ys5YBPVS1c2TvDeay3Hy0BS5xrH+CQnEMir0mtfNMOMHhM w== Received: from nwd2mta4.analog.com ([137.71.173.58]) by mx0a-00128a01.pphosted.com (PPS) with ESMTPS id 447m6nryjh-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Fri, 17 Jan 2025 08:07:24 -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 50HD7MbN027809 (version=TLSv1/SSLv3 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=FAIL); Fri, 17 Jan 2025 08:07:23 -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 08:07:22 -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 08:07:22 -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 50HD764m013564; Fri, 17 Jan 2025 08:07:16 -0500 From: Antoniu Miclaus To: , , , , , , CC: Antoniu Miclaus , David Lechner Subject: [PATCH v10 4/8] iio: adc: adi-axi-adc: add interface type Date: Fri, 17 Jan 2025 15:06:58 +0200 Message-ID: <20250117130702.22588-5-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-GUID: Hl5LaaTo1Y5R3jwTGGHRI1e80GIyV6RC X-Proofpoint-ORIG-GUID: Hl5LaaTo1Y5R3jwTGGHRI1e80GIyV6RC 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 lowpriorityscore=0 impostorscore=0 malwarescore=0 priorityscore=1501 bulkscore=0 spamscore=0 suspectscore=0 mlxlogscore=999 adultscore=0 phishscore=0 mlxscore=0 clxscore=1015 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.19.0-2411120000 definitions=main-2501170106 Add support for getting the interface (CMOS or LVDS) used by the AXI ADC IP. Reviewed-by: David Lechner Signed-off-by: Antoniu Miclaus Reviewed-by: Nuno Sa --- no changes in v10. drivers/iio/adc/adi-axi-adc.c | 23 +++++++++++++++++++++++ 1 file changed, 23 insertions(+) diff --git a/drivers/iio/adc/adi-axi-adc.c b/drivers/iio/adc/adi-axi-adc.c index c7357601f0f8..d2e1dc63775c 100644 --- a/drivers/iio/adc/adi-axi-adc.c +++ b/drivers/iio/adc/adi-axi-adc.c @@ -39,6 +39,9 @@ #define ADI_AXI_REG_RSTN_MMCM_RSTN BIT(1) #define ADI_AXI_REG_RSTN_RSTN BIT(0) +#define ADI_AXI_ADC_REG_CONFIG 0x000c +#define ADI_AXI_ADC_REG_CONFIG_CMOS_OR_LVDS_N BIT(7) + #define ADI_AXI_ADC_REG_CTRL 0x0044 #define ADI_AXI_ADC_CTRL_DDR_EDGESEL_MASK BIT(1) @@ -290,6 +293,25 @@ static int axi_adc_chan_disable(struct iio_backend *back, unsigned int chan) ADI_AXI_REG_CHAN_CTRL_ENABLE); } +static int axi_adc_interface_type_get(struct iio_backend *back, + enum iio_backend_interface_type *type) +{ + struct adi_axi_adc_state *st = iio_backend_get_priv(back); + unsigned int val; + int ret; + + ret = regmap_read(st->regmap, ADI_AXI_ADC_REG_CONFIG, &val); + if (ret) + return ret; + + if (val & ADI_AXI_ADC_REG_CONFIG_CMOS_OR_LVDS_N) + *type = IIO_BACKEND_INTERFACE_SERIAL_CMOS; + else + *type = IIO_BACKEND_INTERFACE_SERIAL_LVDS; + + return 0; +} + static struct iio_buffer *axi_adc_request_buffer(struct iio_backend *back, struct iio_dev *indio_dev) { @@ -337,6 +359,7 @@ static const struct iio_backend_ops adi_axi_adc_ops = { .iodelay_set = axi_adc_iodelays_set, .test_pattern_set = axi_adc_test_pattern_set, .chan_status = axi_adc_chan_status, + .interface_type_get = axi_adc_interface_type_get, .debugfs_reg_access = iio_backend_debugfs_ptr(axi_adc_reg_access), .debugfs_print_chan_status = iio_backend_debugfs_ptr(axi_adc_debugfs_print_chan_status), };