From patchwork Fri Oct 18 10:42:07 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Antoniu Miclaus X-Patchwork-Id: 13841567 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 1ACF6201277; Fri, 18 Oct 2024 10:43:17 +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=1729248199; cv=none; b=a3vqN+HVhS5NGelZvfWwq8b/54F1qvO6Tkcn3Dm3r7Hzc5JzoQW8HIAjudVd0SdF2BPN+3H0C2xs6/Lx5+82mxbi3ja7dcI6eUADpWt/BQezPz/zDv8a1d7m5/6lDOYQtZLh6VBky3w6P9p9XFFLr1S7ysZTvCYB15JZkFINZA0= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1729248199; c=relaxed/simple; bh=T84xyNyL3ZqCkgkR0MCH1x9hBWfkuDIgsMJsVOPZ1/I=; h=From:To:CC:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version:Content-Type; b=MMM3MybsMrbX8y35SdDIJaTRDWe9XUKiLU2olaQnH9bwuOnXk0GzzV8yqxGFNmBn0ouEJ6joIp36TjbaorIJjKIfm9XvfIp1j/OyEzrfD/NVDyEbPfk7yAReidPGH4esIX4wC8FYBuaOKFr+kYWt3Fk/RMMYjIMEb/CvVW4kxc4= 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=oNhT5+jy; 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="oNhT5+jy" 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 49I8h1IS018095; Fri, 18 Oct 2024 06:43:15 -0400 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=At6k7 NR1GkaY4UmBJTZQefy22fx5D42E93CKLTUGWxA=; b=oNhT5+jyaWvSg+ika8yQW PiPU1FvI6J6Uh3W/dbxMHHGoT/szgxTf/5eGo+FUEU3gYw2FPm1UMvxaUeqyCgHH SsdR2oKgbINTzMygHllQxpbpulxy1/A1Iyey6foOZlNDnjh090qUta1UUqRndELg 5g9ne70NW6yvatXE8nB2m26WqLlaXnyag4hds3raDI9xjSEo1nRjm0r2Cb1zkBAr zIfj2M/YbMBqm2ZXaMyJ8fpxv5HUNAgzqA0QD39jquM7GSOV/+mhmRvFbFPzXfNm oL0HBBNioNTMbrkUn4BxmXNIQkyXdOtEHei0I4OvFUlBihjRZGNcXR0HAbss/hjN Q== Received: from nwd2mta4.analog.com ([137.71.173.58]) by mx0a-00128a01.pphosted.com (PPS) with ESMTPS id 42bmdjret0-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Fri, 18 Oct 2024 06:43:15 -0400 (EDT) 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 49IAhE0C060203 (version=TLSv1/SSLv3 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=FAIL); Fri, 18 Oct 2024 06:43:14 -0400 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, 18 Oct 2024 06:43:14 -0400 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, 18 Oct 2024 06:43:14 -0400 Received: from amiclaus-VirtualBox.ad.analog.com (AMICLAUS-L02.ad.analog.com [10.48.65.189]) by zeus.spd.analog.com (8.15.1/8.15.1) with ESMTP id 49IAh2iM028631; Fri, 18 Oct 2024 06:43:10 -0400 From: Antoniu Miclaus To: , , , , , , , , , , CC: Antoniu Miclaus Subject: [PATCH v4 3/6] iio: adc: adi-axi-adc: add interface type Date: Fri, 18 Oct 2024 13:42:07 +0300 Message-ID: <20241018104210.51659-3-antoniu.miclaus@analog.com> X-Mailer: git-send-email 2.46.2 In-Reply-To: <20241018104210.51659-1-antoniu.miclaus@analog.com> References: <20241018104210.51659-1-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: AA6ORUMGu_VgKn8oT2WNL6TfivWp0So2 X-Proofpoint-ORIG-GUID: AA6ORUMGu_VgKn8oT2WNL6TfivWp0So2 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 spamscore=0 bulkscore=0 adultscore=0 mlxlogscore=999 mlxscore=0 malwarescore=0 clxscore=1015 lowpriorityscore=0 impostorscore=0 priorityscore=1501 suspectscore=0 phishscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.19.0-2409260000 definitions=main-2410180069 Add support for getting the interface (CMOS or LVDS) used by the AXI ADC IP. Signed-off-by: Antoniu Miclaus --- changes in v4: - minor typo in commit message. 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 21ce7564e83d..ff48f26e02a3 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) @@ -249,6 +252,25 @@ 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_CMOS; + else + *type = IIO_BACKEND_INTERFACE_LVDS; + + return 0; +} + static struct iio_buffer *axi_adc_request_buffer(struct iio_backend *back, struct iio_dev *indio_dev) { @@ -285,6 +307,7 @@ static const struct iio_backend_ops adi_axi_adc_generic = { .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, }; static int adi_axi_adc_probe(struct platform_device *pdev)