From patchwork Fri Dec 13 16:44:43 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Antoniu Miclaus X-Patchwork-Id: 13907455 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 307701E8854; Fri, 13 Dec 2024 16:45:12 +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=1734108314; cv=none; b=fIwvEvFkjmst4fnnWzgVYVC6/UCUori00KjN1g4tJErvluuc9Rkk000600mvFHvmWRuylTs04PpZZgt9UW0Vihrob0SQx9RXKBysFR9tN7SNjfsDI/iqspxdVt5UsvNY29EtIFCDod8uM4TDT3jHYmcNUiEuWkfv/2CA/JKOiDs= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1734108314; c=relaxed/simple; bh=CTJgn01sYmirQD3iBPRAOP/1H2OScgBbgP9jPMpqHVY=; h=From:To:CC:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version:Content-Type; b=lgUBf21MUmgxoGOs/1uhMoDBgBu9Ak3rmj6+IDPI0zLyj8PxHAiUcUAZmvi8NOXskqmYC/+N2UwXD3rTp8URZ81TtU7vpIRqoOzhCDvbj/8C/KiZECaEd00bOyIeODGXOWRmjGDciuFvnO2p7Ub/FHhch4h/QoNE1Y1ApJIHEmM= 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=rFxgOzvK; 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="rFxgOzvK" 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 4BDD7Yuv018158; Fri, 13 Dec 2024 11:45:10 -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=PTB59 s9QQc6PHARxhTKeA+Ig1Qt8VIwocxFXWaVVSzw=; b=rFxgOzvKCFCuNeX/y6wV+ 2+Vvwk3mT3DCIGmAHDHYrCAaUs52pNOQDXAPSWX+UeSsaMOm4YYTUN2tsaQR70HI q1ALMCoQTP+b/XihslzIefDmVh7hfER2yjbewYDMdxnQbeFtO1Q1dCnuSe4/9TDR IwXqdA1pQa1J/pVZJuqbeFpK5DuUedJAyZtkz24tMptTGywfTuireliSJxhcjXRx lOJeQvFMvSZ05OZsPwR+HI2UKCw4BuKJT7ZFey5diCpIC8n6Jg77udkpWJPrQp+6 Bzgs7VHheUTl2TG0Zg2ElRgR8RM4lOTsWsr10ZWV61Szxpt59WcZg90zdQ2+oURM Q== Received: from nwd2mta4.analog.com ([137.71.173.58]) by mx0b-00128a01.pphosted.com (PPS) with ESMTPS id 43gnhm8vy8-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Fri, 13 Dec 2024 11:45:09 -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 4BDGj8Uu030803 (version=TLSv1/SSLv3 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=FAIL); Fri, 13 Dec 2024 11:45:08 -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, 13 Dec 2024 11:45:08 -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, 13 Dec 2024 11:45:08 -0500 Received: from amiclaus-VirtualBox.ad.analog.com (AMICLAUS-L02.ad.analog.com [10.48.65.187]) by zeus.spd.analog.com (8.15.1/8.15.1) with ESMTP id 4BDGipcG025509; Fri, 13 Dec 2024 11:45:03 -0500 From: Antoniu Miclaus To: , , , , , , CC: Antoniu Miclaus Subject: [PATCH v8 6/8] iio: adc: adi-axi-adc: add oversampling Date: Fri, 13 Dec 2024 18:44:43 +0200 Message-ID: <20241213164445.23195-6-antoniu.miclaus@analog.com> X-Mailer: git-send-email 2.47.1 In-Reply-To: <20241213164445.23195-1-antoniu.miclaus@analog.com> References: <20241213164445.23195-1-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: yz-xHW_VzpdZq8An5uKjM_xEMgLh75yp X-Proofpoint-GUID: yz-xHW_VzpdZq8An5uKjM_xEMgLh75yp X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1039,Hydra:6.0.680,FMLib:17.12.60.29 definitions=2024-09-06_09,2024-09-06_01,2024-09-02_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 malwarescore=0 spamscore=0 clxscore=1015 priorityscore=1501 mlxscore=0 adultscore=0 impostorscore=0 suspectscore=0 phishscore=0 lowpriorityscore=0 mlxlogscore=994 bulkscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.19.0-2411120000 definitions=main-2412130117 Add support for enabling/disabling oversampling. Signed-off-by: Antoniu Miclaus --- changes in v8: - use oversampling ratio set. drivers/iio/adc/adi-axi-adc.c | 19 +++++++++++++++++++ 1 file changed, 19 insertions(+) diff --git a/drivers/iio/adc/adi-axi-adc.c b/drivers/iio/adc/adi-axi-adc.c index 9a3968769512..24d530789e4c 100644 --- a/drivers/iio/adc/adi-axi-adc.c +++ b/drivers/iio/adc/adi-axi-adc.c @@ -46,6 +46,7 @@ #define ADI_AXI_ADC_CTRL_DDR_EDGESEL_MASK BIT(1) #define ADI_AXI_ADC_REG_CNTRL_3 0x004c +#define AD485X_CNTRL_3_CUSTOM_CTRL_OS_EN_MSK BIT(2) #define AD485X_CNTRL_3_CUSTOM_CTRL_PACKET_FORMAT_MSK GENMASK(1, 0) #define AD485X_PACKET_FORMAT_20BIT 0x0 #define AD485X_PACKET_FORMAT_24BIT 0x1 @@ -357,6 +358,23 @@ static int axi_adc_data_size_set(struct iio_backend *back, unsigned int size) FIELD_PREP(AD485X_CNTRL_3_CUSTOM_CTRL_PACKET_FORMAT_MSK, val)); } +static int axi_adc_oversampling_ratio_set(struct iio_backend *back, + unsigned int ratio) +{ + struct adi_axi_adc_state *st = iio_backend_get_priv(back); + + switch (ratio) { + case 0: + return -EINVAL; + case 1: + return regmap_clear_bits(st->regmap, ADI_AXI_ADC_REG_CNTRL_3, + AD485X_CNTRL_3_CUSTOM_CTRL_OS_EN_MSK); + default: + return regmap_set_bits(st->regmap, ADI_AXI_ADC_REG_CNTRL_3, + AD485X_CNTRL_3_CUSTOM_CTRL_OS_EN_MSK); + } +} + static struct iio_buffer *axi_adc_request_buffer(struct iio_backend *back, struct iio_dev *indio_dev) { @@ -406,6 +424,7 @@ static const struct iio_backend_ops adi_axi_adc_ops = { .chan_status = axi_adc_chan_status, .interface_type_get = axi_adc_interface_type_get, .data_size_set = axi_adc_data_size_set, + .oversampling_ratio_set = axi_adc_oversampling_ratio_set, .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), };