Received: by 2002:a05:6a10:5bc5:0:0:0:0 with SMTP id os5csp880283pxb; Wed, 27 Oct 2021 14:21:34 -0700 (PDT) X-Google-Smtp-Source: ABdhPJzKBeup3ygo4eLj6S5eFaq7s3pfFbHp8FpMa/RZMdTsDNGGQ3TZJzfDtCq4cwVAhO4cCGCm X-Received: by 2002:a17:906:794:: with SMTP id l20mr15365ejc.419.1635369694302; Wed, 27 Oct 2021 14:21:34 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1635369694; cv=none; d=google.com; s=arc-20160816; b=CfHG0Q3ao6UiDWmOCNZ3oEftUiB7QO9J5d971b/fzZ2sqeFDBlxZTqJxgpKZdPTZ/g fJNvpmeBXFfhrnLh2gS9UJCxYVVAmAx17qW/xW2XCrDI1m9bpMJTDdoc2HcyFUHlqWLW 8K9y1Gde2rFkrClwUyjXlU8Pq5n8mJByXiOWCu5aQZJmIpEXqXZjI49X/z9TRJZwTs39 zl3F2qv6Ac34uCECFu6nRU9GibCnavmDHEvMUBRZTuYYhgrO9zKj2jdxfO5O84wI4VvW ZDqUEhSNgUex8FqoUyowHYp992J8Lm0vx90yyHyUDBdTeSUUvECTbTabwEBCVMbZrrwg C4+w== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:content-transfer-encoding:mime-version :message-id:date:subject:cc:to:from; bh=G6qqlncZmA2UzupWQQ3W+NWnUi5YmiauhiF22wTX+Lw=; b=V0EPELe3eJxd7UPtsNexXZLGqN9eZbFDfqP4TeD7iA9MDhkhK4ODmez73zFNgxKPH2 p74G8CJLmzJasObxu7R2T7jReEpofmaujwuRF3Y7SP+gk2iOk0nUG7HU1Tuqn+d2xk73 wtGQz2kEeiR8M50CYfXNP7SeoyoZXYzzDTFBDNKndulG54nDURO9U9eSzNilhKgxQo9d 2VOYzWns5QlFde88VfN0hGx1jAlgsz3kZtSaNpEWVdrIW9hfq9dIm3zoUBKdCO+n3GGx 59/BHqfxxeBxZFULPbqQDiV0GwUmU5eq7d8A9D4Pd9nbUZmwwE9RO66mWJ13qw8KfcqE mHKA== ARC-Authentication-Results: i=1; mx.google.com; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=fail (p=NONE sp=NONE dis=NONE) header.from=analog.com Return-Path: Received: from vger.kernel.org (vger.kernel.org. [23.128.96.18]) by mx.google.com with ESMTP id ji9si1535320ejc.252.2021.10.27.14.21.10; Wed, 27 Oct 2021 14:21:34 -0700 (PDT) Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) client-ip=23.128.96.18; Authentication-Results: mx.google.com; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=fail (p=NONE sp=NONE dis=NONE) header.from=analog.com Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232412AbhJ0J0L (ORCPT + 97 others); Wed, 27 Oct 2021 05:26:11 -0400 Received: from mx0a-00128a01.pphosted.com ([148.163.135.77]:34840 "EHLO mx0a-00128a01.pphosted.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229699AbhJ0J0K (ORCPT ); Wed, 27 Oct 2021 05:26:10 -0400 Received: from pps.filterd (m0167089.ppops.net [127.0.0.1]) by mx0a-00128a01.pphosted.com (8.16.1.2/8.16.1.2) with SMTP id 19R90naJ014816; Wed, 27 Oct 2021 05:23:44 -0400 Received: from nwd2mta4.analog.com ([137.71.173.58]) by mx0a-00128a01.pphosted.com with ESMTP id 3bx4fb0240-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Wed, 27 Oct 2021 05:23:44 -0400 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 19R9NhMr051139 (version=TLSv1/SSLv3 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=FAIL); Wed, 27 Oct 2021 05:23:43 -0400 Received: from ASHBCASHYB4.ad.analog.com (10.64.17.132) 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 15.2.858.5; Wed, 27 Oct 2021 05:23:42 -0400 Received: from ASHBMBX8.ad.analog.com (10.64.17.5) by ASHBCASHYB4.ad.analog.com (10.64.17.132) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.858.5; Wed, 27 Oct 2021 05:23:42 -0400 Received: from zeus.spd.analog.com (10.66.68.11) by ashbmbx8.ad.analog.com (10.64.17.5) with Microsoft SMTP Server id 15.2.858.5 via Frontend Transport; Wed, 27 Oct 2021 05:23:42 -0400 Received: from amiclaus-VirtualBox.ad.analog.com (AMICLAUS-L02.ad.analog.com [10.48.65.136]) by zeus.spd.analog.com (8.15.1/8.15.1) with ESMTP id 19R9NdaD017350; Wed, 27 Oct 2021 05:23:40 -0400 From: Antoniu Miclaus To: , , , , CC: , Antoniu Miclaus Subject: [PATCH v2 1/2] iio: frequency: admv1013: add support for ADMV1013 Date: Wed, 27 Oct 2021 12:23:32 +0300 Message-ID: <20211027092333.5270-1-antoniu.miclaus@analog.com> X-Mailer: git-send-email 2.33.1 MIME-Version: 1.0 Content-Transfer-Encoding: 7BIT Content-Type: text/plain; charset=US-ASCII X-ADIRuleOP-NewSCL: Rule Triggered X-Proofpoint-GUID: 2wXNB0YM7Tn6pe_ZkyzNahWyhatpflVC X-Proofpoint-ORIG-GUID: 2wXNB0YM7Tn6pe_ZkyzNahWyhatpflVC X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.182.1,Aquarius:18.0.790,Hydra:6.0.425,FMLib:17.0.607.475 definitions=2021-10-27_03,2021-10-26_01,2020-04-07_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 mlxscore=0 suspectscore=0 clxscore=1015 adultscore=0 phishscore=0 impostorscore=0 lowpriorityscore=0 priorityscore=1501 spamscore=0 bulkscore=0 mlxlogscore=999 malwarescore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2110150000 definitions=main-2110270057 Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org The ADMV1013 is a wideband, microwave upconverter optimized for point to point microwave radio designs operating in the 24 GHz to 44 GHz radio frequency (RF) range. Datasheet: https://www.analog.com/media/en/technical-documentation/data-sheets/ADMV1013.pdf Signed-off-by: Antoniu Miclaus --- changes in v2: - Kconfig: put all dependencies in one line - remove `indio_dev->dev.parent = &spi->dev` drivers/iio/frequency/Kconfig | 11 + drivers/iio/frequency/Makefile | 1 + drivers/iio/frequency/admv1013.c | 578 +++++++++++++++++++++++++++++++ 3 files changed, 590 insertions(+) create mode 100644 drivers/iio/frequency/admv1013.c diff --git a/drivers/iio/frequency/Kconfig b/drivers/iio/frequency/Kconfig index 240b81502512..6a1950a0b8fa 100644 --- a/drivers/iio/frequency/Kconfig +++ b/drivers/iio/frequency/Kconfig @@ -49,5 +49,16 @@ config ADF4371 To compile this driver as a module, choose M here: the module will be called adf4371. + +config ADMV1013 + tristate "Analog Devices ADMV1013 Microwave Upconverter" + depends on SPI && COMMON_CLK && 64BIT + help + Say yes here to build support for Analog Devices ADMV1013 + 24 GHz to 44 GHz, Wideband, Microwave Upconverter. + + To compile this driver as a module, choose M here: the + module will be called admv1013. + endmenu endmenu diff --git a/drivers/iio/frequency/Makefile b/drivers/iio/frequency/Makefile index 518b1e50caef..559922a8196e 100644 --- a/drivers/iio/frequency/Makefile +++ b/drivers/iio/frequency/Makefile @@ -7,3 +7,4 @@ obj-$(CONFIG_AD9523) += ad9523.o obj-$(CONFIG_ADF4350) += adf4350.o obj-$(CONFIG_ADF4371) += adf4371.o +obj-$(CONFIG_ADMV1013) += admv1013.o diff --git a/drivers/iio/frequency/admv1013.c b/drivers/iio/frequency/admv1013.c new file mode 100644 index 000000000000..91254605013c --- /dev/null +++ b/drivers/iio/frequency/admv1013.c @@ -0,0 +1,578 @@ +// SPDX-License-Identifier: GPL-2.0-only +/* + * ADMV1013 driver + * + * Copyright 2021 Analog Devices Inc. + */ + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#include + +/* ADMV1013 Register Map */ +#define ADMV1013_REG_SPI_CONTROL 0x00 +#define ADMV1013_REG_ALARM 0x01 +#define ADMV1013_REG_ALARM_MASKS 0x02 +#define ADMV1013_REG_ENABLE 0x03 +#define ADMV1013_REG_LO_AMP_I 0x05 +#define ADMV1013_REG_LO_AMP_Q 0x06 +#define ADMV1013_REG_OFFSET_ADJUST_I 0x07 +#define ADMV1013_REG_OFFSET_ADJUST_Q 0x08 +#define ADMV1013_REG_QUAD 0x09 +#define ADMV1013_REG_VVA_TEMP_COMP 0x0A + +/* ADMV1013_REG_SPI_CONTROL Map */ +#define ADMV1013_PARITY_EN_MSK BIT(15) +#define ADMV1013_SPI_SOFT_RESET_MSK BIT(14) +#define ADMV1013_CHIP_ID_MSK GENMASK(11, 4) +#define ADMV1013_CHIP_ID 0xA +#define ADMV1013_REVISION_ID_MSK GENMASK(3, 0) + +/* ADMV1013_REG_ALARM Map */ +#define ADMV1013_PARITY_ERROR_MSK BIT(15) +#define ADMV1013_TOO_FEW_ERRORS_MSK BIT(14) +#define ADMV1013_TOO_MANY_ERRORS_MSK BIT(13) +#define ADMV1013_ADDRESS_RANGE_ERROR_MSK BIT(12) + +/* ADMV1013_REG_ENABLE Map */ +#define ADMV1013_VGA_PD_MSK BIT(15) +#define ADMV1013_MIXER_PD_MSK BIT(14) +#define ADMV1013_QUAD_PD_MSK GENMASK(13, 11) +#define ADMV1013_BG_PD_MSK BIT(10) +#define ADMV1013_MIXER_IF_EN_MSK BIT(7) +#define ADMV1013_DET_EN_MSK BIT(5) + +/* ADMV1013_REG_LO_AMP_I Map */ +#define ADMV1013_LOAMP_PH_ADJ_I_FINE_MSK GENMASK(13, 7) +#define ADMV1013_MIXER_VGATE_MSK GENMASK(6, 0) + +/* ADMV1013_REG_LO_AMP_Q Map */ +#define ADMV1013_LOAMP_PH_ADJ_Q_FINE_MSK GENMASK(13, 7) + +/* ADMV1013_REG_OFFSET_ADJUST_I Map */ +#define ADMV1013_MIXER_OFF_ADJ_I_P_MSK GENMASK(15, 9) +#define ADMV1013_MIXER_OFF_ADJ_I_N_MSK GENMASK(8, 2) + +/* ADMV1013_REG_OFFSET_ADJUST_Q Map */ +#define ADMV1013_MIXER_OFF_ADJ_Q_P_MSK GENMASK(15, 9) +#define ADMV1013_MIXER_OFF_ADJ_Q_N_MSK GENMASK(8, 2) + +/* ADMV1013_REG_QUAD Map */ +#define ADMV1013_QUAD_SE_MODE_MSK GENMASK(9, 6) +#define ADMV1013_QUAD_FILTERS_MSK GENMASK(3, 0) + +/* ADMV1013_REG_VVA_TEMP_COMP Map */ +#define ADMV1013_VVA_TEMP_COMP_MSK GENMASK(15, 0) + +struct admv1013_state { + struct spi_device *spi; + struct clk *clkin; + /* Protect against concurrent accesses to the device */ + struct mutex lock; + struct regulator *reg; + struct notifier_block nb; + unsigned int quad_se_mode; + bool vga_pd; + bool mixer_pd; + bool quad_pd; + bool bg_pd; + bool mixer_if_en; + bool det_en; + u8 data[3] ____cacheline_aligned; +}; + +static int __admv1013_spi_read(struct admv1013_state *st, unsigned int reg, + unsigned int *val) +{ + int ret; + struct spi_transfer t = {0}; + + st->data[0] = 0x80 | (reg << 1); + st->data[1] = 0x0; + st->data[2] = 0x0; + + t.rx_buf = &st->data[0]; + t.tx_buf = &st->data[0]; + t.len = 3; + + ret = spi_sync_transfer(st->spi, &t, 1); + if (ret) + return ret; + + *val = (get_unaligned_be24(&st->data[0]) >> 1) & GENMASK(15, 0); + + return ret; +} + +static int admv1013_spi_read(struct admv1013_state *st, unsigned int reg, + unsigned int *val) +{ + int ret; + + mutex_lock(&st->lock); + ret = __admv1013_spi_read(st, reg, val); + mutex_unlock(&st->lock); + + return ret; +} + +static int __admv1013_spi_write(struct admv1013_state *st, + unsigned int reg, + unsigned int val) +{ + put_unaligned_be24((val << 1) | (reg << 17), &st->data[0]); + + return spi_write(st->spi, &st->data[0], 3); +} + +static int admv1013_spi_write(struct admv1013_state *st, unsigned int reg, + unsigned int val) +{ + int ret; + + mutex_lock(&st->lock); + ret = __admv1013_spi_write(st, reg, val); + mutex_unlock(&st->lock); + + return ret; +} + +static int __admv1013_spi_update_bits(struct admv1013_state *st, unsigned int reg, + unsigned int mask, unsigned int val) +{ + int ret; + unsigned int data, temp; + + ret = __admv1013_spi_read(st, reg, &data); + if (ret) + return ret; + + temp = (data & ~mask) | (val & mask); + + return __admv1013_spi_write(st, reg, temp); +} + +static int admv1013_spi_update_bits(struct admv1013_state *st, unsigned int reg, + unsigned int mask, unsigned int val) +{ + int ret; + + mutex_lock(&st->lock); + ret = __admv1013_spi_update_bits(st, reg, mask, val); + mutex_unlock(&st->lock); + + return ret; +} + +static int admv1013_read_raw(struct iio_dev *indio_dev, + struct iio_chan_spec const *chan, + int *val, int *val2, long info) +{ + struct admv1013_state *st = iio_priv(indio_dev); + unsigned int data; + int ret; + + switch (info) { + case IIO_CHAN_INFO_OFFSET: + if (chan->channel2 == IIO_MOD_I) { + ret = admv1013_spi_read(st, ADMV1013_REG_OFFSET_ADJUST_I, &data); + if (ret) + return ret; + + *val = FIELD_GET(ADMV1013_MIXER_OFF_ADJ_I_P_MSK, data); + *val2 = FIELD_GET(ADMV1013_MIXER_OFF_ADJ_I_N_MSK, data); + } else { + ret = admv1013_spi_read(st, ADMV1013_REG_OFFSET_ADJUST_Q, &data); + if (ret) + return ret; + + *val = FIELD_GET(ADMV1013_MIXER_OFF_ADJ_Q_P_MSK, data); + *val2 = FIELD_GET(ADMV1013_MIXER_OFF_ADJ_Q_N_MSK, data); + } + + return IIO_VAL_INT_MULTIPLE; + case IIO_CHAN_INFO_PHASE: + if (chan->channel2 == IIO_MOD_I) { + ret = admv1013_spi_read(st, ADMV1013_REG_LO_AMP_I, &data); + if (ret) + return ret; + + *val = FIELD_GET(ADMV1013_LOAMP_PH_ADJ_I_FINE_MSK, data); + } else { + ret = admv1013_spi_read(st, ADMV1013_REG_LO_AMP_Q, &data); + if (ret) + return ret; + + *val = FIELD_GET(ADMV1013_LOAMP_PH_ADJ_Q_FINE_MSK, data); + } + + return IIO_VAL_INT; + default: + return -EINVAL; + } +} + +static int admv1013_write_raw(struct iio_dev *indio_dev, + struct iio_chan_spec const *chan, + int val, int val2, long info) +{ + struct admv1013_state *st = iio_priv(indio_dev); + int ret; + + switch (info) { + case IIO_CHAN_INFO_OFFSET: + val2 /= 100000; + + if (chan->channel2 == IIO_MOD_I) + ret = admv1013_spi_update_bits(st, ADMV1013_REG_OFFSET_ADJUST_I, + ADMV1013_MIXER_OFF_ADJ_I_P_MSK | + ADMV1013_MIXER_OFF_ADJ_I_N_MSK, + FIELD_PREP(ADMV1013_MIXER_OFF_ADJ_I_P_MSK, val) | + FIELD_PREP(ADMV1013_MIXER_OFF_ADJ_I_N_MSK, val2)); + else + ret = admv1013_spi_update_bits(st, ADMV1013_REG_OFFSET_ADJUST_Q, + ADMV1013_MIXER_OFF_ADJ_Q_P_MSK | + ADMV1013_MIXER_OFF_ADJ_Q_N_MSK, + FIELD_PREP(ADMV1013_MIXER_OFF_ADJ_Q_P_MSK, val) | + FIELD_PREP(ADMV1013_MIXER_OFF_ADJ_Q_N_MSK, val2)); + + return ret; + case IIO_CHAN_INFO_PHASE: + if (chan->channel2 == IIO_MOD_I) + return admv1013_spi_update_bits(st, ADMV1013_REG_LO_AMP_I, + ADMV1013_LOAMP_PH_ADJ_I_FINE_MSK, + FIELD_PREP(ADMV1013_LOAMP_PH_ADJ_I_FINE_MSK, val)); + else + return admv1013_spi_update_bits(st, ADMV1013_REG_LO_AMP_Q, + ADMV1013_LOAMP_PH_ADJ_Q_FINE_MSK, + FIELD_PREP(ADMV1013_LOAMP_PH_ADJ_Q_FINE_MSK, val)); + default: + return -EINVAL; + } +} + +static int admv1013_update_quad_filters(struct admv1013_state *st) +{ + unsigned int filt_raw; + u64 rate = clk_get_rate(st->clkin); + + if (rate >= 5400000000 && rate <= 7000000000) + filt_raw = 15; + else if (rate >= 5400000000 && rate <= 8000000000) + filt_raw = 10; + else if (rate >= 6600000000 && rate <= 9200000000) + filt_raw = 5; + else + filt_raw = 0; + + return __admv1013_spi_update_bits(st, ADMV1013_REG_QUAD, + ADMV1013_QUAD_FILTERS_MSK, + FIELD_PREP(ADMV1013_QUAD_FILTERS_MSK, filt_raw)); +} + +static int admv1013_update_mixer_vgate(struct admv1013_state *st) +{ + unsigned int vcm, mixer_vgate; + + vcm = regulator_get_voltage(st->reg); + + if (vcm >= 0 && vcm < 1800000) + mixer_vgate = (2389 * vcm / 1000000 + 8100) / 100; + else if (vcm > 1800000 && vcm < 2600000) + mixer_vgate = (2375 * vcm / 1000000 + 125) / 100; + else + return -EINVAL; + + return __admv1013_spi_update_bits(st, ADMV1013_REG_LO_AMP_I, + ADMV1013_MIXER_VGATE_MSK, + FIELD_PREP(ADMV1013_MIXER_VGATE_MSK, mixer_vgate)); +} + +static int admv1013_reg_access(struct iio_dev *indio_dev, + unsigned int reg, + unsigned int write_val, + unsigned int *read_val) +{ + struct admv1013_state *st = iio_priv(indio_dev); + int ret; + + if (read_val) + ret = admv1013_spi_read(st, reg, read_val); + else + ret = admv1013_spi_write(st, reg, write_val); + + return ret; +} + +static const struct iio_info admv1013_info = { + .read_raw = admv1013_read_raw, + .write_raw = admv1013_write_raw, + .debugfs_reg_access = &admv1013_reg_access, +}; + +static int admv1013_freq_change(struct notifier_block *nb, unsigned long action, void *data) +{ + struct admv1013_state *st = container_of(nb, struct admv1013_state, nb); + int ret; + + if (action == POST_RATE_CHANGE) { + mutex_lock(&st->lock); + ret = notifier_from_errno(admv1013_update_quad_filters(st)); + mutex_unlock(&st->lock); + return ret; + } + + return NOTIFY_OK; +} + +static void admv1013_clk_notifier_unreg(void *data) +{ + struct admv1013_state *st = data; + + clk_notifier_unregister(st->clkin, &st->nb); +} + +#define ADMV1013_CHAN(_channel, rf_comp) { \ + .type = IIO_ALTVOLTAGE, \ + .modified = 1, \ + .output = 1, \ + .indexed = 1, \ + .channel2 = IIO_MOD_##rf_comp, \ + .channel = _channel, \ + .info_mask_separate = BIT(IIO_CHAN_INFO_PHASE) | \ + BIT(IIO_CHAN_INFO_OFFSET) \ + } + +static const struct iio_chan_spec admv1013_channels[] = { + ADMV1013_CHAN(0, I), + ADMV1013_CHAN(0, Q), +}; + +static int admv1013_init(struct admv1013_state *st) +{ + int ret; + unsigned int chip_id, enable_reg, enable_reg_msk; + struct spi_device *spi = st->spi; + + /* Perform a software reset */ + ret = __admv1013_spi_update_bits(st, ADMV1013_REG_SPI_CONTROL, + ADMV1013_SPI_SOFT_RESET_MSK, + FIELD_PREP(ADMV1013_SPI_SOFT_RESET_MSK, 1)); + if (ret) + return ret; + + ret = __admv1013_spi_update_bits(st, ADMV1013_REG_SPI_CONTROL, + ADMV1013_SPI_SOFT_RESET_MSK, + FIELD_PREP(ADMV1013_SPI_SOFT_RESET_MSK, 0)); + if (ret) + return ret; + + ret = __admv1013_spi_read(st, ADMV1013_REG_SPI_CONTROL, &chip_id); + if (ret) + return ret; + + chip_id = FIELD_GET(ADMV1013_CHIP_ID_MSK, chip_id); + if (chip_id != ADMV1013_CHIP_ID) { + dev_err(&spi->dev, "Invalid Chip ID.\n"); + return -EINVAL; + } + + ret = __admv1013_spi_write(st, ADMV1013_REG_VVA_TEMP_COMP, 0xE700); + if (ret) + return ret; + + ret = __admv1013_spi_update_bits(st, ADMV1013_REG_QUAD, + ADMV1013_QUAD_SE_MODE_MSK, + FIELD_PREP(ADMV1013_QUAD_SE_MODE_MSK, st->quad_se_mode)); + if (ret) + return ret; + + ret = admv1013_update_mixer_vgate(st); + if (ret) + return ret; + + ret = admv1013_update_quad_filters(st); + if (ret) + return ret; + + enable_reg_msk = ADMV1013_VGA_PD_MSK | + ADMV1013_MIXER_PD_MSK | + ADMV1013_QUAD_PD_MSK | + ADMV1013_BG_PD_MSK | + ADMV1013_MIXER_IF_EN_MSK | + ADMV1013_DET_EN_MSK; + + enable_reg = FIELD_PREP(ADMV1013_VGA_PD_MSK, st->vga_pd) | + FIELD_PREP(ADMV1013_MIXER_PD_MSK, st->mixer_pd) | + FIELD_PREP(ADMV1013_QUAD_PD_MSK, st->quad_pd ? 7 : 0) | + FIELD_PREP(ADMV1013_BG_PD_MSK, st->bg_pd) | + FIELD_PREP(ADMV1013_MIXER_IF_EN_MSK, st->mixer_if_en) | + FIELD_PREP(ADMV1013_DET_EN_MSK, st->det_en); + + return __admv1013_spi_update_bits(st, ADMV1013_REG_ENABLE, enable_reg_msk, enable_reg); +} + +static void admv1013_clk_disable(void *data) +{ + clk_disable_unprepare(data); +} + +static void admv1013_reg_disable(void *data) +{ + regulator_disable(data); +} + +static void admv1013_powerdown(void *data) +{ + unsigned int enable_reg, enable_reg_msk; + + /* Disable all components in the Enable Register */ + enable_reg_msk = ADMV1013_VGA_PD_MSK | + ADMV1013_MIXER_PD_MSK | + ADMV1013_QUAD_PD_MSK | + ADMV1013_BG_PD_MSK | + ADMV1013_MIXER_IF_EN_MSK | + ADMV1013_DET_EN_MSK; + + enable_reg = FIELD_PREP(ADMV1013_VGA_PD_MSK, 1) | + FIELD_PREP(ADMV1013_MIXER_PD_MSK, 1) | + FIELD_PREP(ADMV1013_QUAD_PD_MSK, 7) | + FIELD_PREP(ADMV1013_BG_PD_MSK, 1) | + FIELD_PREP(ADMV1013_MIXER_IF_EN_MSK, 0) | + FIELD_PREP(ADMV1013_DET_EN_MSK, 0); + + admv1013_spi_update_bits(data, ADMV1013_REG_ENABLE, enable_reg_msk, enable_reg); +} + +static int admv1013_properties_parse(struct admv1013_state *st) +{ + int ret; + struct spi_device *spi = st->spi; + + st->vga_pd = device_property_read_bool(&spi->dev, "adi,vga-pd"); + st->mixer_pd = device_property_read_bool(&spi->dev, "adi,mixer-pd"); + st->quad_pd = device_property_read_bool(&spi->dev, "adi,quad-pd"); + st->bg_pd = device_property_read_bool(&spi->dev, "adi,bg-pd"); + st->mixer_if_en = device_property_read_bool(&spi->dev, "adi,mixer-if-en"); + st->det_en = device_property_read_bool(&spi->dev, "adi,det-en"); + + ret = device_property_read_u32(&spi->dev, "adi,quad-se-mode", &st->quad_se_mode); + if (ret) + st->quad_se_mode = 12; + + st->reg = devm_regulator_get(&spi->dev, "vcm"); + if (IS_ERR(st->reg)) + return dev_err_probe(&spi->dev, PTR_ERR(st->reg), + "failed to get the common-mode voltage\n"); + + st->clkin = devm_clk_get(&spi->dev, "lo_in"); + if (IS_ERR(st->clkin)) + return dev_err_probe(&spi->dev, PTR_ERR(st->clkin), + "failed to get the LO input clock\n"); + + return 0; +} + +static int admv1013_probe(struct spi_device *spi) +{ + struct iio_dev *indio_dev; + struct admv1013_state *st; + int ret; + + indio_dev = devm_iio_device_alloc(&spi->dev, sizeof(*st)); + if (!indio_dev) + return -ENOMEM; + + st = iio_priv(indio_dev); + + indio_dev->info = &admv1013_info; + indio_dev->name = "admv1013"; + indio_dev->channels = admv1013_channels; + indio_dev->num_channels = ARRAY_SIZE(admv1013_channels); + + st->spi = spi; + + ret = admv1013_properties_parse(st); + if (ret) + return ret; + + ret = regulator_enable(st->reg); + if (ret) { + dev_err(&spi->dev, "Failed to enable specified Common-Mode Voltage!\n"); + return ret; + } + + ret = devm_add_action_or_reset(&spi->dev, admv1013_reg_disable, + st->reg); + if (ret) + return ret; + + ret = clk_prepare_enable(st->clkin); + if (ret) + return ret; + + ret = devm_add_action_or_reset(&spi->dev, admv1013_clk_disable, st->clkin); + if (ret) + return ret; + + st->nb.notifier_call = admv1013_freq_change; + ret = clk_notifier_register(st->clkin, &st->nb); + if (ret) + return ret; + + ret = devm_add_action_or_reset(&spi->dev, admv1013_clk_notifier_unreg, st); + if (ret) + return ret; + + mutex_init(&st->lock); + + ret = admv1013_init(st); + if (ret) { + dev_err(&spi->dev, "admv1013 init failed\n"); + return ret; + } + + ret = devm_add_action_or_reset(&spi->dev, admv1013_powerdown, st); + if (ret) + return ret; + + return devm_iio_device_register(&spi->dev, indio_dev); +} + +static const struct spi_device_id admv1013_id[] = { + { "admv1013", 0}, + {} +}; +MODULE_DEVICE_TABLE(spi, admv1013_id); + +static const struct of_device_id admv1013_of_match[] = { + { .compatible = "adi,admv1013" }, + {}, +}; +MODULE_DEVICE_TABLE(of, admv1013_of_match); + +static struct spi_driver admv1013_driver = { + .driver = { + .name = "admv1013", + .of_match_table = admv1013_of_match, + }, + .probe = admv1013_probe, + .id_table = admv1013_id, +}; +module_spi_driver(admv1013_driver); + +MODULE_AUTHOR("Antoniu Miclaus