From patchwork Fri Dec 13 16:44:41 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Antoniu Miclaus X-Patchwork-Id: 13907452 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 93F7D1E3DE7; Fri, 13 Dec 2024 16:45:10 +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=1734108312; cv=none; b=VujlATWbXbWMk9fn1SpDf72cIx9Hh0/5jSDPIiCgRNf8X7DAfMRUqNYI7oj2TFvGLBAgskCSVASDQXqLBqIENBFw/xz8j3yAJYmEUyDOYv1O0Azu54SxPs4U9SPaSa4jYX+ZKsx8AwsDIVzXE72V3LJbQkiojukvlTdQcpaVFHU= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1734108312; c=relaxed/simple; bh=eMG2BjpStBQZ6kNfGHttkYbd8b6oyDb+ilkSNk4X0Oc=; h=From:To:CC:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version:Content-Type; b=nhonNHwAvDS3kJSrTfFA94+tW20OWqTV2BeUjySIIH5yvRYqCLRtnz3L3Rxxhj09p5dLp7JuTkV3zazVo02UyQQWqTxXP/tJgK3IfqcaufCiQ8eAYSU7Ws8CEtqnDuVbbNGyWpYXm9XSXd5oZl1XtG91XyyfMSuBcZykidpqW0o= 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=kb5Iax3o; 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="kb5Iax3o" 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 4BDF29j5023473; Fri, 13 Dec 2024 11:45:07 -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=YZ3ys QFRIhbcxVdMEXlJv4yJrar4AQC7nyQoS9vYpaU=; b=kb5Iax3oJrkACiCZ9P76q JSDPRuB0PRbeAoQCaHUjq97OS/JZ/zz9wiQT8vXra3UBdvNKkZymD2zRVzCRwnWT +sEZ/p2bSC2GAWwoIyMwKCdlHLjCeDjDX/rGMl0AItvIOYgTb9pAQao8nyetpKbV +D+HThMZdj2ela+ItGoHQx+la2Vph6sXEUfdFMyQOya6wWjA6mK40zBWzucpCJal nNfykLd8gIPsDdh7MOSz35A8syLDVS+kbSLw1Gt6EmVKCzPDe65fVvkChqvtUwYW /EkPutccxrEfESMyZZ1GEkGmOlIW49XDovwIGceO3qCD5U1/3ioYJPojLjEEhzI/ w== Received: from nwd2mta4.analog.com ([137.71.173.58]) by mx0a-00128a01.pphosted.com (PPS) with ESMTPS id 43gju79jq2-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Fri, 13 Dec 2024 11:45:07 -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 4BDGj6kB030718 (version=TLSv1/SSLv3 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=FAIL); Fri, 13 Dec 2024 11:45:06 -0500 Received: from ASHBMBX8.ad.analog.com (10.64.17.5) 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 11:45:05 -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, 13 Dec 2024 11:45:05 -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 4BDGipcE025509; Fri, 13 Dec 2024 11:45:00 -0500 From: Antoniu Miclaus To: , , , , , , CC: Antoniu Miclaus , David Lechner Subject: [PATCH v8 4/8] iio: adc: adi-axi-adc: add interface type Date: Fri, 13 Dec 2024 18:44:41 +0200 Message-ID: <20241213164445.23195-4-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-GUID: oH_OvZqDM1z0W3y9DXvThyXnTubGdy65 X-Proofpoint-ORIG-GUID: oH_OvZqDM1z0W3y9DXvThyXnTubGdy65 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 adultscore=0 priorityscore=1501 suspectscore=0 clxscore=1015 lowpriorityscore=0 mlxscore=0 mlxlogscore=999 spamscore=0 bulkscore=0 phishscore=0 impostorscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.19.0-2411120000 definitions=main-2412130117 Add support for getting the interface (CMOS or LVDS) used by the AXI ADC IP. Reviewed-by: David Lechner Signed-off-by: Antoniu Miclaus --- no changes in v8. 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 5c8c87eb36d1..f6475bc93796 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), };