From patchwork Fri Jan 17 13:07:00 2025 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Antoniu Miclaus X-Patchwork-Id: 13943309 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 B9E101FFC55; Fri, 17 Jan 2025 13:07:28 +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=1737119250; cv=none; b=QWgiYiFvAdk3Pg1Y5v7OZT+bUJlnYafKe+AagUB4c93rmyvfRMjh3qLlUi16JVcyjxDOHR9WfdQSnesMAyMW87B2Uww2xDwNTmYI4FTiMKdGZEL6j/b4Re4saK5QaHdFtHBSUTK6oI1ZeB6nrXCc4cASbq9+RHahQpsDen+2y0E= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1737119250; c=relaxed/simple; bh=J9Fj64Guq4vYQwAu5jLwn607LJ8srdDo1kUsvoz7MKU=; h=From:To:CC:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version:Content-Type; b=IPUuQ1r1JD2fSE2GA8QO3w2C/Ex9YC9TIWjCUW/RoJimNOaxGFDYV/QFBacQZ+qNx9bnQ8G7etlXDfWi8aaUCR7FFyTSpRbCgECOQS9+CoSwLdAmIFKxIbY7oK/ySQ6MqkJvcRAx8F5rgjnl98zaKCDF+iJTSdED1YdWgDFOHIA= 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=LdcMNyYL; 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="LdcMNyYL" Received: from pps.filterd (m0167089.ppops.net [127.0.0.1]) by mx0a-00128a01.pphosted.com (8.18.1.2/8.18.1.2) with ESMTP id 50HBDV96027922; Fri, 17 Jan 2025 08:07:26 -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=+w2lI WQl+cv6QnEaoCZm3OV4luCazw8jpdxtmhyazbY=; b=LdcMNyYLlkUOiRCgh3nmW T8ix16wELvduPQi6dlJoGxhsrrIdpzaU6LEhZT2Q8t8ojQ3C89/n95ZCbmwlMV/F yLx/vfoCHfvkRTaGwx4FeouogcLNeWmytVOjcGHgi+zitY987t8ZhV+0xMB6m4km F62p/tGqq2IzrdOxwNxdL3de8ptYyKUQ25reLalwAnMwVifx6MOw89mNkV34ZVhg e1qzQCW/5h0o7Q3yW1pm6XImJR0t9ngB2fOrZVkiEK/GYp0eM+K6hxJFFDXUZOx9 NsUpk8ol7mC/vZ8ynWoY+Hxgcj8SfggIcrZ6vyM2f9P2EErrfvIhtg0JCG9kfXUL A== Received: from nwd2mta4.analog.com ([137.71.173.58]) by mx0a-00128a01.pphosted.com (PPS) with ESMTPS id 447j7usjbd-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Fri, 17 Jan 2025 08:07:26 -0500 (EST) Received: from ASHBMBX9.ad.analog.com (ASHBMBX9.ad.analog.com [10.64.17.10]) by nwd2mta4.analog.com (8.14.7/8.14.7) with ESMTP id 50HD7Pnl027826 (version=TLSv1/SSLv3 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=FAIL); Fri, 17 Jan 2025 08:07:25 -0500 Received: from ASHBMBX8.ad.analog.com (10.64.17.5) 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, 17 Jan 2025 08:07:24 -0500 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, 17 Jan 2025 08:07:24 -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 50HD764o013564; Fri, 17 Jan 2025 08:07:19 -0500 From: Antoniu Miclaus To: , , , , , , CC: Antoniu Miclaus Subject: [PATCH v10 6/8] iio: adc: adi-axi-adc: add oversampling Date: Fri, 17 Jan 2025 15:07:00 +0200 Message-ID: <20250117130702.22588-7-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: L2ikV6L7lRuqtAY8B9Qh2FP-ttYCDOkJ X-Proofpoint-ORIG-GUID: L2ikV6L7lRuqtAY8B9Qh2FP-ttYCDOkJ 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 adultscore=0 bulkscore=0 clxscore=1015 mlxlogscore=999 malwarescore=0 impostorscore=0 mlxscore=0 phishscore=0 suspectscore=0 spamscore=0 priorityscore=1501 lowpriorityscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.19.0-2411120000 definitions=main-2501170106 Add support for enabling/disabling oversampling. Signed-off-by: Antoniu Miclaus --- no changes in v10. 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 3c213ca5ff8e..ce88650bbb62 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_OS_EN_MSK BIT(2) #define AD485X_CNTRL_3_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_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_OS_EN_MSK); + default: + return regmap_set_bits(st->regmap, ADI_AXI_ADC_REG_CNTRL_3, + AD485X_CNTRL_3_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), };