From patchwork Tue Nov 19 12:54:39 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Marcelo Schmitt X-Patchwork-Id: 13879849 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 4DA471CC88D; Tue, 19 Nov 2024 12:55:13 +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=1732020915; cv=none; b=T42BsvTJc6IigIuFZlbArceOVXRALHxtVnnxZ4y9KoOrOTQOFKhI9f32L9yqKHZNaqHWhXYEPok29KaL5fn957UJ9FqZIV8o5mCMjHTUbdSZ9NUMID/O4FAKuRECd3JoJJLXVma5cAMWzWRamqBF3ASiYJl5ephX1MTwZFxu0Kg= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1732020915; c=relaxed/simple; bh=UG0j9jP4clEqcDpOVurpM+p4zKueeealkqG18mOI5Fc=; h=From:To:CC:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version:Content-Type; b=SMT1lJYeS9AYJ5zFiwZ2na7F2gAyKRnPtriJMkTPsGmq7p6xTrtkwzUkUKGk7Jnijab8dlTnHaLqWhC49lbITmXcRqkQuS+5neDB5uGtUYQVcvldkVI2Wf8tdjle6BevQyB2OR7lfuG04rttAvOWdM8MBCmiwitqEARFvxXyfQI= 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=QoROGbph; 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="QoROGbph" 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 4AJCMdrr020233; Tue, 19 Nov 2024 07:54:58 -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=RtKzt Mk+WaSacvWDrWRl7PaF1p+LzKzHwlczSrtztto=; b=QoROGbph0BKCtfHUwC6eY iqDt8nZoEH4pskfq3DfslKhO69SOBXSu5LBWlJCk1R3MuJ7VkNmEteO3W2oPraxq 1fjNIu/W+TzRLBIiz7rU8QnlfEm3PC80Z1buDOWsgdIPvBjzmWWwFx91f3SlBpLi 9l8+vwZn0A3x+Ncz2ZWt/iwmy/gWuQNhCkxJcQnICKppNLzZln2kGDQShkbLe5+y A/PHcHVWBjTaykq/IXb7BoS246UWZiYVFoMmreCAjmAUV7yEQ875qxnNwvRO4GQh ccvg0/+pP1teRA4PyparOuae9RdQTu2XcCVWNfm4M2GSJ+mkxL2uoNF8JVJ4lZYC w== Received: from nwd2mta4.analog.com ([137.71.173.58]) by mx0a-00128a01.pphosted.com (PPS) with ESMTPS id 43025m6hfb-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Tue, 19 Nov 2024 07:54:57 -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 4AJCsuHl005035 (version=TLSv1/SSLv3 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=FAIL); Tue, 19 Nov 2024 07:54:56 -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; Tue, 19 Nov 2024 07:54:56 -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; Tue, 19 Nov 2024 07:54:56 -0500 Received: from work.ad.analog.com (HYB-hERzalRezfV.ad.analog.com [10.65.205.9]) by zeus.spd.analog.com (8.15.1/8.15.1) with ESMTP id 4AJCsfwN007335; Tue, 19 Nov 2024 07:54:43 -0500 From: Marcelo Schmitt To: , , , , , , , CC: , , , David Lechner Subject: [PATCH v3 4/4] iio: adc: ad4000: Add support for PulSAR devices Date: Tue, 19 Nov 2024 09:54:39 -0300 Message-ID: X-Mailer: git-send-email 2.39.2 In-Reply-To: References: 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: AWhEhaKjXbNS37g5ITvXKU-vkOM1u5uz X-Proofpoint-ORIG-GUID: AWhEhaKjXbNS37g5ITvXKU-vkOM1u5uz 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 phishscore=0 priorityscore=1501 bulkscore=0 mlxlogscore=999 lowpriorityscore=0 clxscore=1015 malwarescore=0 impostorscore=0 adultscore=0 spamscore=0 suspectscore=0 mlxscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.19.0-2409260000 definitions=main-2411190095 The ADI PulSAR series of single-channel devices comprises differential and pseudo-differential ADCs that don't require any input data from the host controller. By not requiring a data input line, PulSAR devices can operate with a 3-wire only data bus in some setups. The AD4000 series and the single-channel PulSAR series of devices have similar SPI transfer specifications and wiring configurations. Single-channel PulSAR devices are slower than AD4000 and don't have a configuration register. That taken into account, single-channel PulSARs can be supported by the ad4000 driver without any increase in code complexity. Extend the AD4000 driver to also support single-channel PulSAR devices. Reviewed-by: David Lechner Signed-off-by: Marcelo Schmitt --- drivers/iio/adc/ad4000.c | 162 +++++++++++++++++++++++++++++++++++++++ 1 file changed, 162 insertions(+) diff --git a/drivers/iio/adc/ad4000.c b/drivers/iio/adc/ad4000.c index c700d51b5637..74b8894d1a2a 100644 --- a/drivers/iio/adc/ad4000.c +++ b/drivers/iio/adc/ad4000.c @@ -138,6 +138,48 @@ static const struct ad4000_time_spec ad4020_t_spec = { .t_quiet2_ns = 60, }; +/* AD7983, AD7984 */ +static const struct ad4000_time_spec ad7983_t_spec = { + .t_conv_ns = 500, + .t_quiet2_ns = 0, +}; + +/* AD7980, AD7982 */ +static const struct ad4000_time_spec ad7980_t_spec = { + .t_conv_ns = 800, + .t_quiet2_ns = 0, +}; + +/* AD7946, AD7686, AD7688, AD7988-5, AD7693 */ +static const struct ad4000_time_spec ad7686_t_spec = { + .t_conv_ns = 1600, + .t_quiet2_ns = 0, +}; + +/* AD7690 */ +static const struct ad4000_time_spec ad7690_t_spec = { + .t_conv_ns = 2100, + .t_quiet2_ns = 0, +}; + +/* AD7942, AD7685, AD7687 */ +static const struct ad4000_time_spec ad7687_t_spec = { + .t_conv_ns = 3200, + .t_quiet2_ns = 0, +}; + +/* AD7691 */ +static const struct ad4000_time_spec ad7691_t_spec = { + .t_conv_ns = 3700, + .t_quiet2_ns = 0, +}; + +/* AD7988-1 */ +static const struct ad4000_time_spec ad7988_1_t_spec = { + .t_conv_ns = 9500, + .t_quiet2_ns = 0, +}; + struct ad4000_chip_info { const char *dev_name; struct iio_chan_spec chan_spec[2]; @@ -260,6 +302,96 @@ static const struct ad4000_chip_info adaq4003_chip_info = { .has_hardware_gain = true, }; +static const struct ad4000_chip_info ad7685_chip_info = { + .dev_name = "ad7685", + .chan_spec = AD4000_PSEUDO_DIFF_CHANNELS('u', 16, 0), + .time_spec = &ad7687_t_spec, +}; + +static const struct ad4000_chip_info ad7686_chip_info = { + .dev_name = "ad7686", + .chan_spec = AD4000_PSEUDO_DIFF_CHANNELS('u', 16, 0), + .time_spec = &ad7686_t_spec, +}; + +static const struct ad4000_chip_info ad7687_chip_info = { + .dev_name = "ad7687", + .chan_spec = AD4000_DIFF_CHANNELS('s', 16, 0), + .time_spec = &ad7687_t_spec, +}; + +static const struct ad4000_chip_info ad7688_chip_info = { + .dev_name = "ad7688", + .chan_spec = AD4000_DIFF_CHANNELS('s', 16, 0), + .time_spec = &ad7686_t_spec, +}; + +static const struct ad4000_chip_info ad7690_chip_info = { + .dev_name = "ad7690", + .chan_spec = AD4000_DIFF_CHANNELS('s', 18, 0), + .time_spec = &ad7690_t_spec, +}; + +static const struct ad4000_chip_info ad7691_chip_info = { + .dev_name = "ad7691", + .chan_spec = AD4000_DIFF_CHANNELS('s', 18, 0), + .time_spec = &ad7691_t_spec, +}; + +static const struct ad4000_chip_info ad7693_chip_info = { + .dev_name = "ad7693", + .chan_spec = AD4000_DIFF_CHANNELS('s', 16, 0), + .time_spec = &ad7686_t_spec, +}; + +static const struct ad4000_chip_info ad7942_chip_info = { + .dev_name = "ad7942", + .chan_spec = AD4000_PSEUDO_DIFF_CHANNELS('u', 14, 0), + .time_spec = &ad7687_t_spec, +}; + +static const struct ad4000_chip_info ad7946_chip_info = { + .dev_name = "ad7946", + .chan_spec = AD4000_PSEUDO_DIFF_CHANNELS('u', 14, 0), + .time_spec = &ad7686_t_spec, +}; + +static const struct ad4000_chip_info ad7980_chip_info = { + .dev_name = "ad7980", + .chan_spec = AD4000_PSEUDO_DIFF_CHANNELS('u', 16, 0), + .time_spec = &ad7980_t_spec, +}; + +static const struct ad4000_chip_info ad7982_chip_info = { + .dev_name = "ad7982", + .chan_spec = AD4000_DIFF_CHANNELS('s', 18, 0), + .time_spec = &ad7980_t_spec, +}; + +static const struct ad4000_chip_info ad7983_chip_info = { + .dev_name = "ad7983", + .chan_spec = AD4000_PSEUDO_DIFF_CHANNELS('u', 16, 0), + .time_spec = &ad7983_t_spec, +}; + +static const struct ad4000_chip_info ad7984_chip_info = { + .dev_name = "ad7984", + .chan_spec = AD4000_DIFF_CHANNELS('s', 18, 0), + .time_spec = &ad7983_t_spec, +}; + +static const struct ad4000_chip_info ad7988_1_chip_info = { + .dev_name = "ad7988-1", + .chan_spec = AD4000_PSEUDO_DIFF_CHANNELS('u', 16, 0), + .time_spec = &ad7988_1_t_spec, +}; + +static const struct ad4000_chip_info ad7988_5_chip_info = { + .dev_name = "ad7988-5", + .chan_spec = AD4000_PSEUDO_DIFF_CHANNELS('u', 16, 0), + .time_spec = &ad7686_t_spec, +}; + struct ad4000_state { struct spi_device *spi; struct gpio_desc *cnv_gpio; @@ -733,6 +865,21 @@ static const struct spi_device_id ad4000_id[] = { { "ad4022", (kernel_ulong_t)&ad4022_chip_info }, { "adaq4001", (kernel_ulong_t)&adaq4001_chip_info }, { "adaq4003", (kernel_ulong_t)&adaq4003_chip_info }, + { "ad7685", (kernel_ulong_t)&ad7685_chip_info }, + { "ad7686", (kernel_ulong_t)&ad7686_chip_info }, + { "ad7687", (kernel_ulong_t)&ad7687_chip_info }, + { "ad7688", (kernel_ulong_t)&ad7688_chip_info }, + { "ad7690", (kernel_ulong_t)&ad7690_chip_info }, + { "ad7691", (kernel_ulong_t)&ad7691_chip_info }, + { "ad7693", (kernel_ulong_t)&ad7693_chip_info }, + { "ad7942", (kernel_ulong_t)&ad7942_chip_info }, + { "ad7946", (kernel_ulong_t)&ad7946_chip_info }, + { "ad7980", (kernel_ulong_t)&ad7980_chip_info }, + { "ad7982", (kernel_ulong_t)&ad7982_chip_info }, + { "ad7983", (kernel_ulong_t)&ad7983_chip_info }, + { "ad7984", (kernel_ulong_t)&ad7984_chip_info }, + { "ad7988-1", (kernel_ulong_t)&ad7988_1_chip_info }, + { "ad7988-5", (kernel_ulong_t)&ad7988_5_chip_info }, { } }; MODULE_DEVICE_TABLE(spi, ad4000_id); @@ -754,6 +901,21 @@ static const struct of_device_id ad4000_of_match[] = { { .compatible = "adi,ad4022", .data = &ad4022_chip_info }, { .compatible = "adi,adaq4001", .data = &adaq4001_chip_info }, { .compatible = "adi,adaq4003", .data = &adaq4003_chip_info }, + { .compatible = "adi,ad7685", .data = &ad7685_chip_info }, + { .compatible = "adi,ad7686", .data = &ad7686_chip_info }, + { .compatible = "adi,ad7687", .data = &ad7687_chip_info }, + { .compatible = "adi,ad7688", .data = &ad7688_chip_info }, + { .compatible = "adi,ad7690", .data = &ad7690_chip_info }, + { .compatible = "adi,ad7691", .data = &ad7691_chip_info }, + { .compatible = "adi,ad7693", .data = &ad7693_chip_info }, + { .compatible = "adi,ad7942", .data = &ad7942_chip_info }, + { .compatible = "adi,ad7946", .data = &ad7946_chip_info }, + { .compatible = "adi,ad7980", .data = &ad7980_chip_info }, + { .compatible = "adi,ad7982", .data = &ad7982_chip_info }, + { .compatible = "adi,ad7983", .data = &ad7983_chip_info }, + { .compatible = "adi,ad7984", .data = &ad7984_chip_info }, + { .compatible = "adi,ad7988-1", .data = &ad7988_1_chip_info }, + { .compatible = "adi,ad7988-5", .data = &ad7988_5_chip_info }, { } }; MODULE_DEVICE_TABLE(of, ad4000_of_match);